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Alienware 16X Aurora AC16251 Core Ultra 9 290HX Plus vs Lenovo Legion Pro 5i (16", Gen 10) 16IAX10

A

Product A: Alienware

16X Aurora AC16251 Core Ultra 9 290HX Plus

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B

Product B: Lenovo

Legion Pro 5i (16", Gen 10) 16IAX10

97 of 179 known

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All 179 fields

Every value links to where we found it.

Only differences

AAlienware 16X Aurora AC16251 Core Ultra 9 290HX Plus

BLenovo Legion Pro 5i (16", Gen 10) 16IAX10

General

5 of 9 differ

Series

Alienware Aurora1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026

Legion Pro 54Maker product pagelenovo.com/hk/en/p/laptops/legion-laptops/legion-pro-series/legion-pro-5i-gen-10-16-inch-intel/83f3002vhhRead 5 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

AC162511Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Exact current US selected Offer ID ac16251_so_1: Core Ultra 9 290HX Plus, RTX 5060 8 GB GDDR7, 32 GB as 2 x 16 GB DDR5, 1 TB M.2 2230 Gen4x4 SSD, non-touch WQXGA OLED 240 Hz, 96 Wh and Home. This is the later OLED configuration under the unchanged AC16251 model number. Original 2025 LCD/275HX specifications are not copied into it.

83F3002VHH1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Live exact Model Configurations table, rendered in a browser. This file represents only Hong Kong SKU 83F3002VHH. Other CPU, GPU memory, installed RAM, panels and regional bundles are excluded.

GTIN / EAN

Not available

1981585247041Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

8 May 20259Press releasena.alienwarearena.com/ucf/show/2175562/boards/alienware-pulse/News/alienware-reveals-all-new-aurora-laptop-classRead 7 October 2026Named Alienware General Manager announcement explicitly dated May 8, 2025 at 9 am ET in its byline. Outer CMS metadata says May 2. Use the explicit announcement date, independently corroborated by contemporary May 8 coverage. This dates the original marketed AC16251 family, not the later OLED / 290HX Plus reference.

Not available

Status

Available1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Exact ac16251_so_1 is offered for sale in the current US store.

Not available

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

Not available

Not available

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026

HK1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

ColoursiThe maker's own colour names

Interstellar Indigo1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Current embedded maker PropertyValue names Interstellar Indigo.

Eclipse Black1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Case Color row: Eclipse Black with 24-Zone RGB Backlit Keyboard. Keyboard description is not part of the colour name.

Segment

Gaming1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Current embedded maker PropertyValue identifies the laptop as gaming-first.

Gaming4Maker product pagelenovo.com/hk/en/p/laptops/legion-laptops/legion-pro-series/legion-pro-5i-gen-10-16-inch-intel/83f3002vhhRead 5 October 2026Maker presents this as an esports gaming laptop.

Form factor

Clamshell2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Original laptop views and current exact gallery show conventional clamshell chassis.

Clamshell3Owner's manualimg.enaa.com/oddelki/racunalnistvo/assets/product_images/datoteke/lenovo_legion_pro_5_prenosnik_intel_core_ultra_9_275hx_16_palcni_wqxga_oled_32_gb_ram_1_tb_rtx_5070_ti_windows_11_home_eclipse_bla_2348178923_3.pdfRead 5 October 2026Pages 1-9 front, base and hinged display views show a clamshell laptop.

Chassis

3 of 6 differ

DimensionsiClosed laptop body size. Minimum and maximum thickness describe the front and rear or other points stated by the maker.

Width356.98Depth265.43mm(14.1 × 10.5 in)1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Current maker and updated original manual agree on width 356.98 mm and depth 265.43 mm. Height and weight are omitted because the maker rear 23.40 mm and starting 2.57 kg conflict with the A07 manual rear 16.30 mm and minimum 2.66 kg. No unsupported explanation for those differences is inferred.

Width364.38Depth268.06Thickness (min)21.69Thickness (max)25.95mm(14.3 × 10.6 × 0.9 to 1 in)1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Exact millimetre values from Dimensions (WxDxH). Manual page 10 gives consistent rounded values.

Weight (published)iPublished laptop weight without the charger. A starting weight is identified in the source note and may vary with configuration.

Not available

2.43kg(5.4 lb)1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Around 2.43 kg. Approximate Lenovo laboratory weight, not an independent measurement.

Lid material

Aluminium1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Current maker embedded materials paragraph identifies anodized aluminum top panel.8Reviewtomshardware.com/laptops/gaming-laptops/alienware-16x-aurora-reviewRead 7 October 2026Contemporary review independently states aluminum top panel. Current maker materials paragraph is primary.

Aluminium1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Bottom material

Aluminium1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026The same current maker paragraph identifies anodized aluminum bottom panel.8Reviewtomshardware.com/laptops/gaming-laptops/alienware-16x-aurora-reviewRead 7 October 2026Contemporary review independently states aluminum bottom panel. Current maker materials paragraph is primary.

Plastic1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Max hinge angle

Not available

Not available

MIL-STD-810 testing (claimed)iManufacturer claim of MIL-STD-810 testing. The revision and tested procedures belong in the source note. This is not proof of every standard test.

Not available

Not available

Display

9 of 25 differ

Screen sizeiDiagonal of the main built-in display. Rounded-corner displays may be measured as a full rectangle.

16in(40.6 cm)1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 20262Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026

16in(40.6 cm)1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Native resolution

2560 × 1600px1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 20262Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026

2560 × 1600px1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Pixel density

188.7ppi=CalculatedFrom Screen size and Native resolution

188.7ppi=CalculatedFrom Screen size and Native resolution

Panel typeiDell's WVA means wide viewing angle and names no panel technology, so it is stored as IPS only when Dell or a review names IPS.

OLED1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 20262Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Original English April 2026 A07 Table 21, printed p. 25. Retain Option 2 OLED, 2560 x 1600 at 240 Hz. Option 1 IPS 240 Hz is excluded.

OLED1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Backlight

None (self-emissive)2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026OLED is self-emissive. No separate LCD backlight is counted.

None (self-emissive)2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/Legion/Legion_Pro_5_16IAX10/Legion_Pro_5_16IAX10_Spec.pdfRead 5 October 2026Pages 4-5 identify the installed panel as OLED, a self-emissive display.

Dimming zonesiIndependently controlled backlight zones, not the number of LEDs or screen pixels.

Not available

Not available

Panel part numberiPanel part number identified in a matching review unit. Suppliers may vary within the same laptop configuration.

Not available

Not available

Screen surfaceiSurface of the stored display configuration. Anti-reflective coatings do not by themselves make a glossy display matte. A matte finish of the chassis is not the screen surface.

Matte1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 20262Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026The original table explicitly selects Anti-glare in its Anti-glare versus glossy row, matching current selected maker Anti-Glare OLED. This is not an inference from an anti-reflective coating alone.

Glossy1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Touchscreen

No1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Current exact selected display is non-touch, corroborated by the matching OLED option in the updated manual.2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026

No1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Stylus

Not available

None1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Refresh rate modesiHighest confirmed operating refresh rate of the built-in display at each resolution. Add a second row only for a documented dual-mode panel, not an ordinary supported timing.

AAlienware 16X Aurora AC16251 Core Ultra 9 290HX Plus

Width (px)	Height (px)	Maximum operating refresh (Hz)	VRR
2560	1600	240	Yes

Source2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Matching native OLED option explicitly 240 Hz and Adaptive Sync/NVIDIA G-SYNC. No lower-resolution timings or old LCD operating modes are added.

BLenovo Legion Pro 5i (16", Gen 10) 16IAX10

Width (px)	Height (px)	Maximum operating refresh (Hz)
2560	1600	165

Source1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Max refresh rate

240Hz=CalculatedFrom Refresh rate modes

165Hz=CalculatedFrom Refresh rate modes

Adaptive synciNamed variable refresh technologies for the built-in display. Manual switching between 60Hz and 120Hz is not VRR.

G-SYNC2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Original built-in OLED display table explicitly NVIDIA G-SYNC. Generic Adaptive Sync wording is not interpreted as VESA certification. Current product-page cable note refers separately to an external monitor.

G-SYNC1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Gray-to-gray response time (claimed)iManufacturer claim for a gray-to-gray pixel transition. Do not use generic response times, black-to-white values, or motion-picture response times.

Not available

Not available

Native panel colour depthiPhysical panel colour depth per channel. Do not infer native bit depth or FRC from the number of supported colours.

Not available

Not available

Brightness (SDR, claimed)iManufacturer typical SDR luminance. Outdoor maxima and an unspecified peak are not typical SDR brightness.

400nits2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Matching OLED luminance cell explicitly 400 typical nits at SDR.

500nits1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026500 nits typical for exact 165 Hz OLED. Family table explicitly identifies SDR typical.

Peak brightness (SDR outdoors, claimed)iManufacturer maximum SDR luminance explicitly claimed for outdoor use. Ambient light, automatic brightness and other stated conditions belong in the source note. Not typical SDR or HDR brightness.

Not available

Not available

Sustained brightness (HDR, claimed)iManufacturer explicitly sustained HDR luminance. Screen area, duration, temperature and other stated conditions belong in the source note. Not a brief peak or SDR luminance.

Not available

Not available

Peak brightness (HDR, claimed)iManufacturer peak luminance explicitly measured or claimed in HDR. Window size and duration belong in the source note.

620nits2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Matching OLED cell explicitly 620 typical nits HDR peak luminance, separately from 400 typical SDR. Manufacturer peak claim, not a reviewer measurement. Window size and duration are not specified.

1,100nits2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/Legion/Legion_Pro_5_16IAX10/Legion_Pro_5_16IAX10_Spec.pdfRead 5 October 2026Pages 4-5 exact 165 Hz OLED row: 1100 nits HDR peak and 500 nits SDR typical. Window size and duration unstated.

sRGB coverage (claimed)iManufacturer stated sRGB gamut percentage. The source note identifies coverage, volume, or an unspecified maker gamut claim.

Not available

Not available

DCI-P3 coverage (claimed)iManufacturer stated DCI-P3 gamut percentage. The source note identifies coverage, volume, or an unspecified maker gamut claim.

Not available

100%1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Display row specifies 100% DCI-P3. The maker does not state a measurement method.

Adobe RGB coverage (claimed)iManufacturer stated Adobe RGB gamut percentage. The source note identifies coverage, volume, or an unspecified maker gamut claim.

Not available

Not available

HDR certification

DisplayHDR True Black 5002Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Matching original OLED table explicitly VESA DisplayHDR True Black 500. Original table also lists VESA ClearMR 9000, now stored separately in other_certifications. Generic 0.2 ms response time is not identified as gray-to-gray and is omitted.

DisplayHDR True Black 10001Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Factory calibratediThe maker explicitly states factory colour calibration. Certification alone does not establish calibration.

Not available

Yes1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Exact Color Calibration row: Factory Color Calibration.

Second display

Not available

Not available

Processor

8 of 14 differ

Processor

Intel Core Ultra 9 290HX Plus1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 20263Maker product pageintel.com/content/www/us/en/products/sku/245960/intel-core-ultra-9-processor-290hx-plus-36m-cache-up-to-5-50-ghz/specifications.htmlRead 5 October 2026Exact processor launched Q1 2026, demonstrating that the current reference is a later configuration of the already marketed AC16251.

Intel Core Ultra 7 255HX1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Processor brand

Intel1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 20263Maker product pageintel.com/content/www/us/en/products/sku/245960/intel-core-ultra-9-processor-290hx-plus-36m-cache-up-to-5-50-ghz/specifications.htmlRead 5 October 2026

Intel1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Core configurationiProcessor core groups using the chip maker's names. MediaTek Big, Apple Super and AMD Zen architecture labels remain distinct from Intel P and E labels.

AAlienware 16X Aurora AC16251 Core Ultra 9 290HX Plus

Core type	Count	Base clock (GHz)	Max clock (GHz)
Performance	8	2.7	5.5
Efficiency	16	1.8	4.7

Source3Maker product pageintel.com/content/www/us/en/products/sku/245960/intel-core-ultra-9-processor-290hx-plus-36m-cache-up-to-5-50-ghz/specifications.htmlRead 5 October 2026Exact 290HX Plus: eight performance cores 2.7 GHz base/5.5 GHz maximum, sixteen efficiency cores 1.8 GHz base/4.7 GHz maximum. Fixed processor specifications, not configured laptop power limits.

BLenovo Legion Pro 5i (16", Gen 10) 16IAX10

Core type	Count	Base clock (GHz)	Max clock (GHz)
Performance	8	2.4	5.2
Efficiency	12	1.8	4.5

Source2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/Legion/Legion_Pro_5_16IAX10/Legion_Pro_5_16IAX10_Spec.pdfRead 5 October 2026Page 2 exact Core Ultra 7 255HX row: eight P cores and twelve E cores with separate base and maximum frequencies.

CPU cores

24=CalculatedFrom Core configuration

20=CalculatedFrom Core configuration

Cores labelled performanceiCounts only rows classified as performance. Other labels, including Big, Super and AMD Zen architecture rows, are not included.

8=CalculatedFrom Core configuration

8=CalculatedFrom Core configuration

Cores labelled efficiencyiCounts only efficiency and low-power-efficiency rows. AMD Zen 5c and Apple super cores are not included.

16=CalculatedFrom Core configuration

12=CalculatedFrom Core configuration

ThreadsiMaximum hardware threads of the processor, including simultaneous multithreading where supported.

243Maker product pageintel.com/content/www/us/en/products/sku/245960/intel-core-ultra-9-processor-290hx-plus-36m-cache-up-to-5-50-ghz/specifications.htmlRead 5 October 2026Exact Intel processor explicitly 24 threads and no Hyper-Threading. Generic manual performance-core Hyper-Threading prose is not applied to this processor.

201Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Max boost clock

5.5GHz=CalculatedFrom Core configuration

5.2GHz=CalculatedFrom Core configuration

L3 cacheiL3 cache only. Do not copy a combined L2 plus L3 cache total. Qualcomm's total cache, such as 30 MB on Snapdragon X, is not L3, even when a laptop maker labels it L3.

36MB3Maker product pageintel.com/content/www/us/en/products/sku/245960/intel-core-ultra-9-processor-290hx-plus-36m-cache-up-to-5-50-ghz/specifications.htmlRead 5 October 2026Exact Intel 36 MB Smart Cache quantity. Matching original HP fixed-processor row explicitly identifies the same 290HX Plus cache as 36 MB L3.4Maker spec sheet (PDF)h20195.www2.hp.com/v2/GetPDF.aspx/c09129341Read 5 October 2026Original HP manufacturer data sheet explicitly lists the exact Intel Core Ultra 9 290HX PLUS fixed component with 36 MB L3 cache, 24 cores/24 threads and Intel Graphics. Used only to identify the level of the same processor cache corroborated by Intel. No HP laptop configuration, memory, power or chassis value is transferred.

30MB1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 202630 MB Intel Smart Cache in exact processor row, not a combined L2 and L3 total.

ProcessiProcess size class of the processor compute die in nm, as on CPUs: TSMC N3B is 3, Intel 7 is 10, Intel 4 is 7 and Intel 18A is 1.8. Marketing process names and other chiplet processes belong in the source note.

3nm3Maker product pageintel.com/content/www/us/en/products/sku/245960/intel-core-ultra-9-processor-290hx-plus-36m-cache-up-to-5-50-ghz/specifications.htmlRead 5 October 2026Lithography row says TSMC N3B, stored as 3 nm like the other Arrow Lake products.

Not available

Sustained CPU power (configured)iThis laptop's sustained configured CPU power limit, such as PL1. A chip manufacturer's generic base power is not the laptop setting.

Not available

Not available

Peak CPU power (configured)iThis laptop's configured short-duration CPU limit, such as PL2. Do not substitute generic processor maximum turbo power.

Not available

Not available

Combined CPU and GPU poweriMaker stated simultaneous CPU plus discrete-GPU budget for the exact configuration and power mode.

Not available

Not available

NPU performanceiNPU-only claimed operations per second. Excludes combined CPU, GPU and platform AI throughput. Precision belongs in the source note.

13TOPS3Maker product pageintel.com/content/www/us/en/products/sku/245960/intel-core-ultra-9-processor-290hx-plus-36m-cache-up-to-5-50-ghz/specifications.htmlRead 5 October 2026Exact Intel NPU-only peak 13 TOPS at INT8. Combined platform 36 TOPS is excluded.

13TOPS1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Integrated Intel AI Boost, up to 13 TOPS. NPU-only, distinct from total platform AI throughput.

Graphics

4 of 9 differ

Discrete GPUiA separate dedicated graphics processor is installed. Integrated or unified-memory graphics do not qualify.

Yes1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026

Yes1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

GPU

NVIDIA GeForce RTX 5060 Laptop GPU1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026

NVIDIA GeForce RTX 5070 Laptop GPU1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

GPU brand

NVIDIA1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026

NVIDIA1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

VRAMiDedicated video memory of the installed discrete GPU. Shared system memory is excluded.

8GB1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026

8GB1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Max GPU power (TGP)iMaximum configured discrete-GPU power including Dynamic Boost. Mode and any maker qualification belong in the source note.

Not available

115W1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Graphics row specifies 115 W TGP for the installed RTX 5070 8 GB. Unspecified Dynamic Boost allocation is omitted.

Dynamic BoostiMaximum additional GPU power shifted from the CPU through NVIDIA Dynamic Boost. This is part of maximum TGP, not extra to it. A figure written as "up to 115W Dynamic Boost" is the total, so it goes in gpu_tgp_max_w.

Not available

Not available

GPU boost clockiHighest maker configured GPU boost clock, including factory overclock where explicitly stated. Mode belongs in the source note.

Not available

2,347MHz1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

GPU switchingiExplicit GPU display-routing or power-sharing features. Advanced Optimus includes hardware display multiplexing.

Not available

Advanced Optimus2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/Legion/Legion_Pro_5_16IAX10/Legion_Pro_5_16IAX10_Spec.pdfRead 5 October 2026Pages 4-5 exact 2560 x 1600 165 Hz OLED row lists Advanced Optimus. The 240 Hz IPS and OLED options are excluded.

Integrated GPU

Intel Graphics3Maker product pageintel.com/content/www/us/en/products/sku/245960/intel-core-ultra-9-processor-290hx-plus-36m-cache-up-to-5-50-ghz/specifications.htmlRead 5 October 2026Exact Intel 290HX Plus explicitly Intel Graphics, four Xe cores. Generic Dell manual Intel Arc label is not substituted for exact processor identity.

Intel Graphics2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/Legion/Legion_Pro_5_16IAX10/Legion_Pro_5_16IAX10_Spec.pdfRead 5 October 2026Page 2 Core Ultra 7 255HX processor graphics: Intel Graphics.

Memory

5 of 9 differ

Installed RAMiTotal installed RAM in this product configuration, not the maximum purchase option.

32GB1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026

16GB1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

RAM type

DDR51Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 20262Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026

DDR51Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

RAM speediConfigured memory data rate in transfers per second. Do not treat the DRAM clock in MHz as the data rate.

5,600MT/s1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Current reference is published up to 5600 MT/s. Updated manual identifies 5600 as factory-installed and 6400 only as customer self-upgrade. The 6400 option is excluded.2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 20265600 MT/s factory-installed. 6400 MT/s applies only to customer self-upgrade, not this reference configuration.

5,600MT/s1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Memory channelsiActive memory channels of the installed configuration, not the number of RAM modules or slots. One installed module is one channel. This holds for DDR5 too, whose two 32-bit subchannels on one module do not count as two channels. Soldered LPDDR memory counts in 64-bit units, so a 128-bit bus is 2 channels, even when a maker calls it quad-channel.

22Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Supported matching 32 GB configuration explicitly 2 x 16 GB, dual-channel, non-ECC and non-XMP.

Not available

RAM upgradeiWhether the installed RAM is soldered, socketed in slots, or a mixture. Purchase-time configurations are not upgrades.

Slots2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Original English A07 memory table explicitly two SO-DIMM sockets with replaceable modules.

Slots1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Memory slotsiPhysical replaceable RAM module sockets grouped by type and occupancy. Clocked SO-DIMM uses CSODIMM. Soldered memory is excluded.

AAlienware 16X Aurora AC16251 Core Ultra 9 290HX Plus

Slot	Count	Occupied	Module size (GB)
SO-DIMM	2	Yes	16

Source1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Exact selected 32 GB is explicitly 2 x 16 GB, occupying both documented SO-DIMM sockets.2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026

BLenovo Legion Pro 5i (16", Gen 10) 16IAX10

Slot	Count	Occupied	Module size (GB)
SO-DIMM	1	Yes	16
SO-DIMM	1	No	Not available

Source1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026One installed 16 GB SODIMM and two physical SODIMM slots. The second slot is empty. Dual-channel capable does not establish active channels for this single-module configuration.

RAM slots

2=CalculatedFrom Memory slots

2=CalculatedFrom Memory slots

Free RAM slots

0=CalculatedFrom Memory slots

1=CalculatedFrom Memory slots

Maximum supported RAMiManufacturer supported maximum RAM, including purchase-time soldered options. Does not imply post-purchase upgradeability.

64GB2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Updated original table explicitly maximum 64 GB. It is not inferred by doubling a generic processor memory limit.

32GB1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Exact SKU Max Memory: up to 32 GB DDR5-5600 offering, based on Lenovo tested offerings.

Storage

2 of 7 differ

Installed storageiTotal advertised installed storage in decimal GB. Convert 1TB to 1000GB, without changing an explicitly published 512GB value.

1TB1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026

1TB1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Installed 1 TB SSD converted to decimal 1000 GB.

Storage type

NVMe SSD2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Internal SSD interfaces explicitly PCIe NVMe. Wireless M.2 connector is excluded from storage sockets.

NVMe SSD1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Installed drive PCIe generationiPCIe generation of the installed drive. This may be lower than the slot capability.

41Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Current installed 1 TB M.2 2230 Gen4x4 drive. This is the installed drive interface, not proof of maximum connector generation.

41Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Storage slotsiPhysical storage connectors grouped by capability and occupancy. A slot accepting several drive lengths is one slot, not one per length.

AAlienware 16X Aurora AC16251 Core Ultra 9 290HX Plus

Form factor	Interface	Count	Occupied
M.2 2280	PCIe NVMe	1	Yes
M.2 2280	PCIe NVMe	1	No

Source2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Original English A07 internal-slots table explicitly two SSD sockets each supporting M.2 2230/2280, corroborated by separate 2280 replacement procedures. Longest supported length 2280 is stored for each physical socket. Exact selected single 2230 drive occupies one and leaves one free. Older storage prose listing only two 2230 drives is superseded by the updated table and procedures. Gen5 SSD1 support is qualified only for RTX 5070 Ti and is not applied to this RTX 5060. No maximum slot PCIe generation is inferred.

BLenovo Legion Pro 5i (16", Gen 10) 16IAX10

Form factor	Interface	PCIe generation	PCIe lanes	Count	Occupied
M.2 2280	PCIe NVMe	4	4	1	Yes
M.2 2280	PCIe NVMe	4	4	1	No

Source1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Two physical M.2 2280 PCIe 4.0 x4 slots, with one installed M.2 2242 drive. Supported connector size is distinct from the installed drive length.

M.2 slots

2=CalculatedFrom Storage slots

2=CalculatedFrom Storage slots

Free storage slots

1=CalculatedFrom Storage slots

1=CalculatedFrom Storage slots

Maximum slot PCIe generation

Not available

4=CalculatedFrom Storage slots

Ports

2 of 7 differ

PortsiPhysical laptop connectors grouped by type, protocol capability and side. One connector with several protocols is counted once.

AAlienware 16X Aurora AC16251 Core Ultra 9 290HX Plus

Type	Version	Count	Side	Maximum data rate (Gbps)	Thunderbolt or USB4	DP Alt Mode
Ethernet (RJ45)	Not available	1	Left	1	Not available	Not available
USB-A	USB 3.2 Gen 1	1	Left	5	Not available	Not available
3.5 mm audio	Not available	1	Left	Not available	Not available	Not available
USB-A	USB 3.2 Gen 1	1	Rear	5	Not available	Not available
USB-C	USB 3.2 Gen 2 / DisplayPort 2.1	1	Rear	10	Not available	Yes
USB-C	Thunderbolt 4 / USB4 / DisplayPort 2.1	1	Rear	40	Thunderbolt 4	Yes
HDMI	HDMI 2.1	1	Rear	Not available	Not available	Not available
DC in	Not available	1	Rear	Not available	Not available	Not available

Source2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Complete original left/right/back views and external-port table: left RJ45 1 Gbps, USB-A 5 Gbps and 3.5 mm headset. Right has only vents. Rear USB-A 5 Gbps, USB-C Gen2 10 Gbps with DisplayPort 2.1, separate Thunderbolt 4/USB4 40 Gbps with DisplayPort 2.1, HDMI 2.1 and barrel DC-in. Current maker PD wording does not establish accepted charging maxima. No HDMI bandwidth is inferred. The 3.5 mm headset is not interpreted as an RCA connector from the maker parenthetical typo.

BLenovo Legion Pro 5i (16", Gen 10) 16IAX10

Type	Version	Count	Side	Maximum data rate (Gbps)	Thunderbolt or USB4	DP Alt Mode	Maximum charging input (W)	Maximum peripheral power (W)
USB-C	USB 3.2 Gen 2	1	Left	10	Not available	Yes	140	15
USB-C	Thunderbolt 4 / USB4	1	Left	40	Thunderbolt 4	Yes	Not available	15
USB-A	USB 3.2 Gen 2	1	Left	10	Not available	Not available	Not available	10
USB-A	USB 3.2 Gen 1	2	Right	5	Not available	Not available	Not available	4.5
3.5 mm audio	Not available	1	Right	Not available	Not available	Not available	Not available	Not available
Ethernet (RJ45)	Not available	1	Right	1	Not available	Not available	Not available	Not available
HDMI	HDMI 2.1	1	Left	Not available	Not available	Not available	Not available	Not available
DC in	Not available	1	Left	Not available	Not available	Not available	Not available	Not available

Source2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/Legion/Legion_Pro_5_16IAX10/Legion_Pro_5_16IAX10_Spec.pdfRead 5 October 2026Page 6 USB-C 10 Gbps charging footnote: standard USB PD 65-100 W, with 140 W accepted using Lenovo proprietary protocol and its unique compatible adapter. The supplied 245 W adapter connects through Slim Tip. Thunderbolt port has no documented charging input.3Owner's manualimg.enaa.com/oddelki/racunalnistvo/assets/product_images/datoteke/lenovo_legion_pro_5_prenosnik_intel_core_ultra_9_275hx_16_palcni_wqxga_oled_32_gb_ram_1_tb_rtx_5070_ti_windows_11_home_eclipse_bla_2348178923_3.pdfRead 5 October 2026Pages 5-7 exact 16IAX10 views establish left/right locations. Page 12 gives USB-A 5 V x 0.9 A output, Always On 5 V x 2 A and both USB-C 5 V x 3 A output. Exact PSREF confirms USB-C standard PD 65-100 W input, with manufacturer platform footnote proving 140 W proprietary Lenovo input and TB4/USB4 40 Gbps. Manual 41.25 Gbps Thunderbolt signalling is not used as symmetric USB data rate.

USB-C ports

2=CalculatedFrom Ports

2=CalculatedFrom Ports

Thunderbolt

Yes=CalculatedFrom Ports

Yes=CalculatedFrom Ports

Highest HDMI version

HDMI 2.1=CalculatedFrom Ports

HDMI 2.1=CalculatedFrom Ports

Card reader

No=CalculatedFrom Ports

No=CalculatedFrom Ports

Ethernet speed

1Gbps=CalculatedFrom Ports

1Gbps=CalculatedFrom Ports

Maximum USB-C charging inputiHighest confirmed charging power accepted by a USB-C port. This is separate from adapter rating and power delivered to peripherals.

Not available

140W=CalculatedFrom Ports

Wireless

3 of 5 differ

Wi-Fi

Wi-Fi 71Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026

Wi-Fi 71Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Wi-Fi bandsiSupported radio frequency bands. Availability may be restricted by country or regulatory configuration.

2.4 GHz, 5 GHz, 6 GHz2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Table 9 MediaTek MT7925B22M explicitly 2.4, 5 and 6 GHz. Regional, driver and operating-system availability apply.

Not available

Wi-Fi module

MediaTek Wi-Fi 7 MT79251Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Current selected maker literal MediaTek Wi-Fi 7 MT7925. The manual adds the module suffix B22M, which is not needed for the retained maker identity.

Not available

BluetoothiThe version as a number with one decimal, such as 5.4 or 6.0. A qualifier such as or above goes in the source note.

5.42Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Table 9 explicitly Bluetooth 5.4 with operating-system functionality caveat.

5.41Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Hardware design Bluetooth 5.4. Actual operation can depend on operating system and driver.

Cellular

Not available

No1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Keyboard and touchpad

4 of 8 differ

Keyboard layoutsiDocumented layouts of the retained regional SKUs. Do not infer a layout solely from the sales country.

English US1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026

English1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Key switches

Not available

Not available

Keyboard backlightiA maker-confirmed backlight with no published type uses backlit_unspecified. Do not infer white lighting, a single colour or RGB from backlit alone. A single-zone RGB backlight is RGB zones.

RGB zones1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Exact selected keyboard explicitly 1-Zone AlienFX RGB Keyboard, English US.

RGB zones1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

NumpadiDedicated physical numeric keypad. A virtual touchpad number pad is not counted.

Yes2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Original keyboard table and current exact maker front photo show a dedicated physical numeric keypad.

Yes2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/Legion/Legion_Pro_5_16IAX10/Legion_Pro_5_16IAX10_Spec.pdfRead 5 October 2026Page 5 Input Device explicitly lists numeric keypad.

Key traveliPhysical key travel distance, not actuation distance.

1.4mm6Maker spec sheet (PDF)oktabit.gr/media/products/pdf/244-94-DENSRAL16CX2/244-94-DENSRAL16CX2.pdfRead 7 October 2026Original one-page Alienware technical sheet, Keyboard Options: 1.4 mm key travel. This shared one-zone AlienFX keyboard is corroborated for the 2026 OLED family by contemporary Notebookcheck news and BGR review. No old LCD, processor or configured power facts are transferred.7Press articlenotebookcheck.net/Alienware-s-new-Aurora-16X-targets-portable-gaming-with-OLED-display-and-RTX-50-series-GPUs.1195060.0.htmlRead 7 October 20262026 OLED announcement explicitly lists the one-zone RGB keyboard with 1.4 mm travel.10Reviewbgr.com/2239500/alienware-16x-aurora-reviewRead 7 October 2026Current OLED review explicitly describes the common one-zone keyboard as 1.4 mm travel. Its configuration section identifies 290HX Plus and 5070 Ti, and the physical keyboard is shared across the stated current configuration options. Only keyboard travel transfers, not performance, thermals, ports or power.

1.6mm2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/Legion/Legion_Pro_5_16IAX10/Legion_Pro_5_16IAX10_Spec.pdfRead 5 October 2026Page 5 Input Device: key travel 1.6 mm.

Pointing stickiDedicated stick pointing device such as TrackPoint. A touchpad does not qualify.

Not available

Not available

Touchpad size

Width115Height70mm(4.5 × 2.8 in)2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Table 17 p. 22 explicitly physical 115 mm width and 70 mm height. Click mechanism is not inferred. Keyboard pitch 18.70 x 18.05 mm is not key travel.

Width120Height75mm(4.7 × 3 in)1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Touchpad mechanismiA clickpad or glass touchpad that clicks when pressed down is mechanical. Haptic needs a source that says haptic or force feedback.

Mechanical8Reviewtomshardware.com/laptops/gaming-laptops/alienware-16x-aurora-reviewRead 7 October 20262026 OLED 270HX Plus / RTX 5060 review explicitly describes top-hinged mechanical clicks. Shared touchpad only, supported by matching current manual dimensions and replacement assembly. No measurements from this CPU configuration are transferred.

Not available

Camera and audio

4 of 7 differ

Webcam

1920 x 1080 at 30 fps2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Table 16 p. 21 explicitly FHD RGB 1920 x 1080 at 30 fps. Separate IR camera 640 x 360 at 15 fps is not substituted for the RGB resolution. Older Aurora 16 HD-camera values are excluded.

5.0MP1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

IR face loginiAn infrared camera suitable for Windows Hello face authentication. An ordinary webcam or fingerprint sensor does not qualify.

Yes2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Front view figure 3 p. 8 explicitly identifies infrared camera and its pairing with Windows Hello Face Authentication. No mechanical shutter is proved.

Not available

Webcam privacy

Not available

Electronic kill switch3Owner's manualimg.enaa.com/oddelki/racunalnistvo/assets/product_images/datoteke/lenovo_legion_pro_5_prenosnik_intel_core_ultra_9_275hx_16_palcni_wqxga_oled_32_gb_ram_1_tb_rtx_5070_ti_windows_11_home_eclipse_bla_2348178923_3.pdfRead 5 October 2026Page 7 camera switch disables/enables the built-in camera. It is an electronic kill switch, not a lens-cover shutter.

Built-in speaker driversiIndividual built-in acoustic drivers, including separate tweeters and woofers. Do not count audio channels or infer driver count from speaker assemblies.

22Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Table 10 p. 18 explicitly two speakers.

21Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Total speaker poweriCombined published power of the built-in speaker drivers. RMS or peak classification belongs in the source note.

4W2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Table 10 explicitly average 2 W + 2 W = 4 W. Separate peak 5 W is not substituted.

4W1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Audio features

Dolby Audio1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Current embedded audio paragraph explicitly names Dolby Audio.

Audio by HARMAN, Nahimic Audio1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

MicrophonesiPhysical built-in microphones, not beamforming channels or microphone modes.

22Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Front view figure 3 p. 8 explicitly Microphones (2).

21Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Battery and power

3 of 5 differ

Battery energyiPublished nominal energy capacity of the installed internal battery in watt-hours. Separate from measured runtime and charger output.

96Wh1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 20262Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Original battery table documents six-cell 96 Wh, matching current exact selected offer. No runtime for a different CPU/LCD reference is copied.

80Wh1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Claimed battery lifeiManufacturer maximum runtime for each explicitly named test. Display brightness, configuration and other conditions belong in the source note. Wireless streaming preserves an unnamed content type and does not imply video or audio. Video conferencing requires an explicit calling test, with application and participant setup in the source note. MobileMark versions use different workloads, so compare only rows of the same version.

Not available

Not available

Adapter rated outputiNominal rated output of the documented supplied or recommended adapter. A temporary dynamic maximum belongs in the source note. Not the laptop charging-input limit.

180W2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Tables 18/19 pp. 22 onward explicitly 180 W E4 adapter required for optimal RTX 5060 performance. Separate 280 W E5 applies to RTX 5070/5070 Ti. This is recommended adapter output, not proof of box inclusion or maximum charging input.

245W1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Laptop charging connectoriConnector at the laptop end of the documented main charging cable, not the wall plug or adapter-end connector. HP's AC smart pin is a round DC plug, so it is barrel.

Barrel2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Original adapter table explicitly barrel connector 7.4 mm external and 5.1 mm internal diameter. USB-C power delivery is separate from the documented main adapter.

Proprietary1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Charge 0 to 50 % (claimed)iManufacturer time to charge an empty battery to 50%. Adapter and powered-off conditions belong in the source note.

Not available

Not available

Cooling

2 of 4 differ

FansiPhysical cooling fans inside the laptop. Excludes fans in external coolers and the power adapter.

22Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026A07 fan assembly procedures identify left FAN2 and right FAN1 in both supported thermal assemblies. Exactly two physical fans.7Press articlenotebookcheck.net/Alienware-s-new-Aurora-16X-targets-portable-gaming-with-OLED-display-and-RTX-50-series-GPUs.1195060.0.htmlRead 7 October 20262026 OLED family explicitly uses dual fans. Current original manual establishes the physical count.

Not available

Vapor chamberiA vapor-chamber heat spreader is installed. Ordinary heatpipes alone do not qualify.

Not available

Not available

Liquid metaliComponents where the maker confirms liquid-metal thermal material. Ordinary thermal paste is excluded.

Not available

Not available

Power modesiPublished laptop operating modes and configured power limits. Do not place observed runtime power measurements in this table.

AAlienware 16X Aurora AC16251 Core Ultra 9 290HX Plus

Name
Quiet

Source1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Current embedded Stealth Mode paragraph explicitly selects Quiet Mode. Only its name is stored. No unproved configured wattage is added.

BLenovo Legion Pro 5i (16", Gen 10) 16IAX10

Not available

Security

3 of 4 differ

Fingerprint

Not available

None1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

TPM

Not available

2.01Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Remote management

Not available

Not available

Security lock slotiA dedicated built-in physical security-cable slot. Security locks that occupy a USB-C port do not qualify.

No2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Original external-port table explicitly states Security-cable slot Not supported. The complete media-card-reader absence is separately reflected by ports. New fan count is established by the actual left/right fan assembly procedures. No uncertain material, TPM version, configured power limit or runtime is inferred.

Not available

Software

0 of 3 differ

Operating system

Windows 11 Home1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026

Windows 11 Home1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

OS family

Windows1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026

Windows1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

Security updates untiliPublished end date of OS/security updates promised for the exact device model. Preserve the source precision. Do not calculate it from years or substitute a generic OS-version lifecycle. Unknown when no device-specific promise is published.

Not available

Not available

Measured display

None of 12 known

Brightness (measured, centre)iReviewer center-point SDR luminance for the matching display configuration. Do not substitute a review average or unspecified measurement.

Not available

Not available

Brightness (measured, average)iReviewer mean luminance across a documented display grid, normally nine points.

Not available

Not available

Contrast ratio (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

HDR peak brightness (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

sRGB coverage (measured)iReviewer measured sRGB coverage, not gamut volume. Instrument and method belong in the source note.

Not available

Not available

DCI-P3 coverage (measured)iReviewer measured DCI-P3 coverage, not gamut volume. Display P3 measurements are identified in the source note.

Not available

Not available

Colour accuracy (measured Delta E)iReviewer colour error before calibration. Delta-E formula, colour space and picture mode belong in the source note.

Not available

Not available

PWM flicker foundiWhether a reviewer detected pulse-width-modulation flicker under the documented test conditions. False does not prove all frequency ranges were tested.

Not available

Not available

PWM frequency (measured)iDetected PWM frequency at the brightness setting stated by the reviewer.

Not available

Not available

PWM at or below brightnessiHighest display brightness setting at or below which the documented PWM is detected.

Not available

Not available

Response black to white (measured)iReviewer combined rise and fall response for black-to-white-to-black, with test conditions in the source note.

Not available

Not available

Response grey to grey (measured)iReviewer combined rise and fall response between specified grey levels. State the levels in the source note.

Not available

Not available

Measured performance

None of 8 known

Cinebench 2024 single-coreiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Cinebench 2024 multi-coreiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Geekbench 6 single-coreiMeasured by a reviewer, not claimed by the maker. Geekbench 6 only. Geekbench 5 and 7 use other scales, so their scores are not stored.

Not available

Not available

Geekbench 6 multi-coreiMeasured by a reviewer, not claimed by the maker. Geekbench 6 only. Geekbench 5 and 7 use other scales, so their scores are not stored.

Not available

Not available

3DMark Time Spy graphicsiMeasured by a reviewer, not claimed by the maker. Graphics score, not the overall score. A score the review does not label as graphics is left out.

Not available

Not available

3DMark Steel NomadiMeasured by a reviewer, not claimed by the maker

Not available

Not available

SSD sequential read (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Game frame ratesiMatching review-unit game results. Resolution, preset, upscaling, frame generation and ray tracing are stated only when documented.

Not available

Not available

Measured noise and temperature

None of 9 known

Fan noise per modeiReviewer sound-pressure readings for the matching configuration and mode. Measurement distance and workload belong in the source note.

Not available

Not available

Max fan noiseiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Fan noise while gamingiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Top surface under loadiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Bottom surface under loadiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Palm rest under loadiMeasured by a reviewer, not claimed by the maker

Not available

Not available

CPU temperature in stress testiMeasured by a reviewer, not claimed by the maker

Not available

Not available

CPU clock in stress testiMeasured by a reviewer, not claimed by the maker

Not available

Not available

GPU temperature while gamingiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Measured battery and power

None of 10 known

Battery runtime per testiReviewer runtime for the exact test and configuration. Mixed browsing, video and graphics workloads are classified as mixed use.

Not available

Not available

Wi-Fi browsing runtimeiMeasured by a reviewer, not claimed by the maker

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Video runtimeiMeasured by a reviewer, not claimed by the maker

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Full charge time (measured)iMeasured by a reviewer, not claimed by the maker

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Power draw idleiHighest reviewer idle AC power reading for the matching configuration and test conditions.

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Power draw gamingiReviewer AC power draw during the named game and settings. Not GPU-only power.

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Power draw maxiMaximum reviewer AC input power during the documented load or stress test. Not the adapter rating.

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Sustained CPU power (measured)iObserved sustained CPU package power during the documented test. Not the configured PL1 limit.

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GPU power while gaming (measured)iObserved GPU-only power while running the documented game and settings.

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Weight (measured)iReviewer measured laptop mass without its power adapter unless the source note explicitly states otherwise.

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Certifications

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Intel EvoiManufacturer certification of the exact configuration as Intel Evo. Processor support alone does not establish certification.

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Copilot+ PCiManufacturer identifies the configuration as Copilot+ PC. A Copilot keyboard key alone is insufficient.

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Colour certifications

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Pantone Validated, Pantone SkinTone Validated1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

ENERGY STAR

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EPEAT

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Other certifications

VESA ClearMR 90002Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026A07 Table 21 explicitly names VESA ClearMR9000 certified for OLED Option 2. No calibration or native panel depth is inferred.7Press articlenotebookcheck.net/Alienware-s-new-Aurora-16X-targets-portable-gaming-with-OLED-display-and-RTX-50-series-GPUs.1195060.0.htmlRead 7 October 20262026 OLED announcement independently names ClearMR 9000.

ErP Lot 6/26, RoHS compliant, TÜV Rheinland Flicker Free, TÜV Rheinland High Gaming Performance, TÜV Rheinland Low Blue Light (Hardware Solution)1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026

In the box

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In the boxiAccessories confirmed for this exact SKU. Do not combine mutually exclusive regional bundles into one box.

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245 W Slim Tip power adapter1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Exact Power Adapter row confirms 245 W Slim Tip (3-pin). Bundled Accessories row says None, so no sleeve, mouse or other optional accessory is included.

Power adapter includediWhether a power adapter is included with this exact regional SKU. A supported or recommended adapter does not prove inclusion.

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Yes3Owner's manualimg.enaa.com/oddelki/racunalnistvo/assets/product_images/datoteke/lenovo_legion_pro_5_prenosnik_intel_core_ultra_9_275hx_16_palcni_wqxga_oled_32_gb_ram_1_tb_rtx_5070_ti_windows_11_home_eclipse_bla_2348178923_3.pdfRead 5 October 2026Page 5 power connector instructions explicitly refer to the included AC adapter. Exact SKU Power Adapter row confirms 245 W Slim Tip.

Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

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1year1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Hong Kong exact SKU Base Warranty: one year courier or carry-in. Included 3Y Legion Ultimate Support is identified separately and is not added to the base term.

Warranty serviceiDocumented manufacturer warranty service for the named market. Included paid service upgrades belong in the source note.

Mail-in1Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026Included US Base Warranty explicitly Basic Hardware Service with Mail-In. Optional onsite service upgrade is excluded. Unstated duration is omitted.

Collect and return, Carry-in1Maker product pagepsref.lenovo.com/Detail/Legion_Pro_5_16IAX10Read 5 October 2026Exact SKU Base Warranty: courier or carry-in. Included upgrade is 3Y Legion Ultimate Support -IPMAIN (ESS).

Links

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Product page

www.dell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac162511Maker product pagedell.com/en-us/shop/dell-laptops/spd/alienware16xauroraac16251Read 7 October 2026

www.lenovo.com/hk/en/p/laptops/legion-laptops/legion-pro-series/legion-pro-5i-gen-10-16-inch-intel/83f3002vhh4Maker product pagelenovo.com/hk/en/p/laptops/legion-laptops/legion-pro-series/legion-pro-5i-gen-10-16-inch-intel/83f3002vhhRead 5 October 2026Exact SKU producer product page. The marketing name is Legion Pro 5i Gen 10, distinct from 16IAX10H RTX 5070 Ti hardware.

Spec sheet

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psref.lenovo.com/syspool/Sys/PDF/Legion/Legion_Pro_5_16IAX10/Legion_Pro_5_16IAX10_Spec.pdf2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/Legion/Legion_Pro_5_16IAX10/Legion_Pro_5_16IAX10_Spec.pdfRead 5 October 2026

Manual

manualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manual2Owner's manualmanualzz.com/doc/90076382/dell-16x-aurora-ac16251-owner-s-manualRead 7 October 2026Original Dell April 2026 A07 owner manual, 160 pages, P139F002/P139F003, was independently read through the public document reader. Its revision history updates OLED, memory, storage and ports in March/April 2026. Only actual document text is used, not the mirror AI summary. Direct HTTP returned a security check and was not bypassed. A complete later OLED reference sheet was not found. The earlier manufacturer brochure is used only for keyboard travel, independently corroborated on the current OLED family.

support.lenovo.com/us/en/documentation/SG102453Owner's manualimg.enaa.com/oddelki/racunalnistvo/assets/product_images/datoteke/lenovo_legion_pro_5_prenosnik_intel_core_ultra_9_275hx_16_palcni_wqxga_oled_32_gb_ram_1_tb_rtx_5070_ti_windows_11_home_eclipse_bla_2348178923_3.pdfRead 5 October 2026Original Lenovo May 2025 User Guide read at a retailer mirror. Page iii names Legion Pro 5 16IAX10, machine type 83F3. Official linked SG10245 page returned HTTP 403 in the browser.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

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