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ASUS Chromebook Plus CX34 (CX3402) vs Lenovo IdeaPad Slim 3x (15", Gen 10) 15Q8X10

A

Product A: ASUS

Chromebook Plus CX34 (CX3402)

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B

Product B: Lenovo

IdeaPad Slim 3x (15", Gen 10) 15Q8X10

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Only differences

AASUS Chromebook Plus CX34 (CX3402)

BLenovo IdeaPad Slim 3x (15", Gen 10) 15Q8X10

General

4 of 9 differ

Series

Chromebook Plus3Maker product pageasus.com/us/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402Read 16 October 2026ASUS names the family ASUS Chromebook Plus CX34. Chromebook Plus is Google's ChromeOS device tier.

IdeaPad Slim 3x1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

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

CX3402CVA-I5128, CX3402CVA-I5128GR6Reviewpcworld.com/article/2642467/asus-chromebook-plus-cx34-review-3.htmlRead 16 October 2026Review spec list: Model number CX3402CVA-I5128, Core i5-1335U, 8GB RAM, 128GB universal flash storage.

15Q8X10, 83N30000US1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact current Lenovo PSREF US 83N30000US opened in Chrome. Retained 16 GB/256 GB/15.3-inch WUXGA IPS touch/Luna Grey, Wi-Fi 7, 720p webcam and round-tip adapter. Non-touch, OLED, 8 GB and 512 GB configurations are excluded.9Retailer pagebestbuy.com/product/lenovo-ideapad-slim-3x-copilot-pc-15-3-2k-touchscreen-laptop-snapdragon-x-2025-16gb-memory-256gb-ssd-luna-grey/JJGSH82JL5Read 8 October 2026Exact Best Buy original US listing explicitly identifies 83N30000US with 16 GB/256 GB/15.3-inch WUXGA touch and Luna Grey, bridging retail identifier to the matching review hardware. Later 512 GB sibling offers are not substituted.

GTIN / EAN

Not available

1981566883471Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

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

Not available

7 April 20251Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact selected SKU PSREF date 7 April 2025, not the chip launch or actual first retail sale.

Status

Available7Spec databasestarryhope.com/chromebooks/models/asus-chromebook-plus-cx34-cx3402cvaRead 16 October 2026Page published 2026-10-11 lists the I5128GR as sold at Best Buy.

Available9Retailer pagebestbuy.com/product/lenovo-ideapad-slim-3x-copilot-pc-15-3-2k-touchscreen-laptop-snapdragon-x-2025-16gb-memory-256gb-ssd-luna-grey/JJGSH82JL5Read 8 October 2026The marketed model was actually released and reviewed, and this exact original listing remains identifiable. Stock can change. No discontinued-production claim is inferred from a temporary listing status.

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.

$4996Reviewpcworld.com/article/2642467/asus-chromebook-plus-cx34-review-3.htmlRead 16 October 2026Spec list price $499 at review time (April 2025). US price. US prices carry no sales tax.8Press articlehelentech.jp/news-43946Read 16 October 2026Best Buy price is $499 at the listing.9Reviewandroidpolice.com/asus-chromebook-plus-cx34-reviewRead 16 October 2026Lists $499 at Best Buy next to the review.10Press articlechromeunboxed.com/the-new-improved-asus-cx34-chromebook-plus-returns-to-349Read 16 October 2026The new model with the 13th-gen Core i5 and touch is a $499 device, usually $499 before discounts.

$7495Reviewpcworld.com/article/2830609/lenovo-ideapad-slim-3x-review.htmlRead 8 October 2026June 30, 2025 US review explicitly lists MSRP $749 as tested, in whole dollars. Reported hardware matches retained original US 83N30000US. Tax treatment is not stated. Current discounted prices and later 512 GB listings are excluded.

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.

US6Reviewpcworld.com/article/2642467/asus-chromebook-plus-cx34-review-3.htmlRead 16 October 2026US review of the Best Buy model.

US1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

ColoursiThe maker's own colour names

Pearl White, Rocky Grey1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026Rocky Grey and Pearl White. The ASUS color rows for CX3402CVA read White and Rocky Grey.7Spec databasestarryhope.com/chromebooks/models/asus-chromebook-plus-cx34-cx3402cvaRead 16 October 2026Rock Grey and Pearl White per Starry Hope. ASUS writes Rocky Grey.

Luna Grey1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

Segment

Mainstream3Maker product pageasus.com/us/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402Read 16 October 2026Mainstream. ASUS sells it as a productivity laptop for individuals and professionals and for students. Classified by this positioning.

Mainstream5Reviewpcworld.com/article/2830609/lenovo-ideapad-slim-3x-review.htmlRead 8 October 2026Matching review describes the budget Snapdragon Windows laptop. No measurements from non-touch/OLED/512 GB configurations are transferred.

Form factor

Clamshell3Maker product pageasus.com/us/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402Read 16 October 2026Clamshell with a 180-degree lay-flat hinge. It does not fold into a tablet.

Clamshell3Owner's manualdocuments.cdn.ifixit.com/UHULoGcjn5wTELMK.pdfRead 8 October 2026

Chassis

4 of 6 differ

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

Width326.4Depth214.3Thickness (min)18.7Thickness (max)18.7mm(12.9 × 8.4 × 0.7 in)1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 202632.64 x 21.43 x 1.87 ~ 1.87 cm. One published thickness, stored as min and max.

Width343.4Depth241.5Thickness (min)16.9Thickness (max)17.9mm(13.5 × 9.5 × 0.7 in)1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact metric body 343.4 x 239.5 x 16.9-17.9 mm. Family PSREF footnote explicitly gives 241.5 mm depth including the camera bump, used for complete closed-body extent. No body millimetres are inferred from rounded inches.

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

1.44kg(3.2 lb)1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026Start from 1.44 kg (3.17 lbs). PCWorld lists 3.17 lbs.6Reviewpcworld.com/article/2642467/asus-chromebook-plus-cx34-review-3.htmlRead 16 October 20263.17 lbs and 0.74 by 12.9 by 8.4 inches, matching the ASUS tab.

1.55kg(3.4 lb)1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Maker starting IPS model mass 1.55 kg, not measured sample mass or charger-inclusive weight.

Lid material

Plastic6Reviewpcworld.com/article/2642467/asus-chromebook-plus-cx34-review-3.htmlRead 16 October 2026Plastic exterior with a sheen. The reviewer notes lid flex.

Aluminium1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

Bottom material

Plastic6Reviewpcworld.com/article/2642467/asus-chromebook-plus-cx34-review-3.htmlRead 16 October 2026The review calls the exterior plastic. The bottom panel is not described separately.

Plastic1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

Max hinge angle

180°3Maker product pageasus.com/us/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402Read 16 October 2026Durable hinges that allow a complete 180-degree flat position.

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.

Yes1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026US MIL-STD 810H military-grade standard. Test list is on the ASUS product page: high and low temperature, freeze/thaw, thermal shock, humidity, altitude, sand and dust, vibration, shock, shipboard vibration and explosive atmosphere. ASUS says testing is conducted on selected products only.

Yes1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Maker claims MIL-STD-810H passed, 21 test items. Not a claim of every possible standard procedure.

Display

6 of 25 differ

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

14in(35.6 cm)1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 202614.0-inch, same on every display line.

15.3in(38.9 cm)1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

Native resolution

1920 × 1080px1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026FHD (1920 x 1080) 16:9, same on every display line.

1920 × 1200px1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

Pixel density

157.4ppi=CalculatedFrom Screen size and Native resolution

148ppi=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.

IPS7Spec databasestarryhope.com/chromebooks/models/asus-chromebook-plus-cx34-cx3402cvaRead 16 October 2026Screen type IPS. HelenTech's report of the Best Buy sheet also says IPS.8Press articlehelentech.jp/news-43946Read 16 October 2026Reports the Best Buy sheet: 14-inch IPS, 1920x1080, 250 nits, anti-glare, touch.

IPS1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact maker IPS wording. PSREF qualifies that IPS-family suppliers can include PLS, ADS, AHVA or AAS. No panel part number inferred.

Backlight

Not available

Not available

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 pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026Anti-glare display. PCWorld calls the finish matte.

Matte1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

Touchscreen

Yes3Maker product pageasus.com/us/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402Read 16 October 2026ASUS says touchscreen is an optional feature of the family. PCWorld confirms touch on CX3402CVA-I5128.6Reviewpcworld.com/article/2642467/asus-chromebook-plus-cx34-review-3.htmlRead 16 October 20267Spec databasestarryhope.com/chromebooks/models/asus-chromebook-plus-cx34-cx3402cvaRead 16 October 2026Core i5-1335U model is touch.

Yes1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

Stylus

None7Spec databasestarryhope.com/chromebooks/models/asus-chromebook-plus-cx34-cx3402cvaRead 16 October 2026No stylus support.

None1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact selected table explicitly Pen Not Supported. Ordinary capacitive touch input does not establish active pen support.

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.

AASUS Chromebook Plus CX34 (CX3402)

Width (px)	Height (px)	Maximum operating refresh (Hz)
1920	1080	60

Source6Reviewpcworld.com/article/2642467/asus-chromebook-plus-cx34-review-3.htmlRead 16 October 2026Display listed as 14-inch 1920x1080, touch enabled, 60Hz, 16:9.

BLenovo IdeaPad Slim 3x (15", Gen 10) 15Q8X10

Not available

Max refresh rate

60Hz=CalculatedFrom Refresh rate modes

Not available

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

Not available

Not available

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.

250nits1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026250nits on every display line, with no HDR or peak qualifier. NTSC 45% is also listed and is not stored.

300nits1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact 300 nits ordinary IPS specification. OLED sibling peak/typical brightness is excluded. Maker 45% NTSC is not converted to another color space.

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.

Not available

Not available

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

Not available

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

Not available

Not available

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

Not available

Not available

Second display

Not available

Not available

Processor

11 of 14 differ

Processor

Intel Core i5-1335U1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026The ASUS global spec tab lists Intel Core i5-1335U 1.3 GHz, 12MB cache, up to 4.6 GHz, 10 cores, 12 threads, among seven processor options for the CX3402CVA and CX3402CBA columns. It does not map options to SKUs. The PCWorld review ties the i5-1335U to CX3402CVA-I5128.6Reviewpcworld.com/article/2642467/asus-chromebook-plus-cx34-review-3.htmlRead 16 October 2026

Qualcomm Snapdragon X X1-26-1001Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

Processor brand

Intel1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026

Qualcomm1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 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.

AASUS Chromebook Plus CX34 (CX3402)

Core type	Count	Base clock (GHz)	Max clock (GHz)
Performance	2	1.3	4.6
Efficiency	8	Not available	3.4

Source5Maker product pageintel.com/content/www/us/en/products/sku/232153/intel-core-i51335u-processor-12m-cache-up-to-4-60-ghz/specifications.htmlRead 16 October 20262 Performance-cores up to 4.6 GHz and 8 Efficient-cores up to 3.4 GHz. P-core base clock 1.3 GHz is the processor base clock on the ASUS spec tab. E-core base clock is not stored. Generic chip power limits are not the laptop setting.

BLenovo IdeaPad Slim 3x (15", Gen 10) 15Q8X10

Count	Core	Max clock (GHz)
8	Qualcomm Oryon	3

Source4Maker spec sheet (PDF)qualcomm.com/content/dam/qcomm-martech/dm-assets/images/company/news-media/media-center/press-kits/ces-2025/documents/ProductBriefSnapdragonX.pdfRead 8 October 2026Maker rendered specification table says eight Oryon cores, up to 3.0 GHz (2.976). Stored 3 GHz retains the exact laptop maker advertised up-to value, with the component document more precise 2.976 figure noted. No base clock or P/E role is inferred. Total Cache 30 MB is not classified as L3, so cpu_cache_l3_mb remains unavailable.

CPU cores

10=CalculatedFrom Core configuration

8=CalculatedFrom Core configuration

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

2=CalculatedFrom Core configuration

Not available

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

8=CalculatedFrom Core configuration

Not available

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

125Maker product pageintel.com/content/www/us/en/products/sku/232153/intel-core-i51335u-processor-12m-cache-up-to-4-60-ghz/specifications.htmlRead 16 October 202612 threads.

810Spec databasenotebookcheck.net/Qualcomm-Snapdragon-X1P-26-100-Processor-Benchmarks-and-Specs.942259.0.htmlRead 8 October 2026Exact component table says 8 cores / 8 threads. Legacy URL/title uses X1P, but the current body and actual processor identity explicitly identify Snapdragon X X1-26-100, matching the maker laptop reference. Generic power expectations, other laptop benchmarks and unbridged cache-layer quantities are not transferred.

Max boost clock

4.6GHz=CalculatedFrom Core configuration

3GHz=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.

12MB5Maker product pageintel.com/content/www/us/en/products/sku/232153/intel-core-i51335u-processor-12m-cache-up-to-4-60-ghz/specifications.htmlRead 16 October 202612 MB Intel Smart Cache.

Not available

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.

10nm5Maker product pageintel.com/content/www/us/en/products/sku/232153/intel-core-i51335u-processor-12m-cache-up-to-4-60-ghz/specifications.htmlRead 16 October 2026Lithography Intel 7, which is a 10 nm class process.

4nm4Maker spec sheet (PDF)qualcomm.com/content/dam/qcomm-martech/dm-assets/images/company/news-media/media-center/press-kits/ces-2025/documents/ProductBriefSnapdragonX.pdfRead 8 October 2026Rendered maker process row explicitly states 4 nm. No chip process or generic CPU TDP is converted into configured laptop power.

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.

Not available

45TOPS1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Dedicated Qualcomm Hexagon NPU up to 45 TOPS. Precision not published in this laptop table. SoC/reference-design benchmark scores are not device measurements.

Graphics

1 of 9 differ

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

No5Maker product pageintel.com/content/www/us/en/products/sku/232153/intel-core-i51335u-processor-12m-cache-up-to-4-60-ghz/specifications.htmlRead 16 October 2026The ASUS tab lists only Intel graphics. No separate graphics chip is listed.

No1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact table explicitly Integrated Qualcomm Adreno GPU. Shared RAM is not dedicated graphics memory.

GPU

Not available

Not available

GPU brand

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

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

Not available

Not available

Integrated GPU

Intel Iris Xe Graphics5Maker product pageintel.com/content/www/us/en/products/sku/232153/intel-core-i51335u-processor-12m-cache-up-to-4-60-ghz/specifications.htmlRead 16 October 2026Processor graphics are Intel Iris Xe Graphics (80 execution units). PCWorld lists Intel Iris Xe for the review unit. The ASUS tab names it only as Intel Graphics.

Qualcomm Adreno X1-451Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 20265Reviewpcworld.com/article/2830609/lenovo-ideapad-slim-3x-review.htmlRead 8 October 2026Exact matching reviewed hardware specification explicitly identifies Qualcomm Adreno X1-45, refining the maker generic Integrated Qualcomm Adreno wording. No GPU clock, power or dedicated VRAM is inferred.

Memory

5 of 9 differ

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

8GB6Reviewpcworld.com/article/2642467/asus-chromebook-plus-cx34-review-3.htmlRead 16 October 20268GB RAM for CX3402CVA-I5128.

16GB1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

RAM type

LPDDR51Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 20268GB LPDDR5 on board on the 8 GB lines. Soldered memory.

LPDDR5X1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

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

Not available

8,448MT/s1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Configured LPDDR5X-8448. Family PSREF explicitly notes installed chips are rated 8533 but operate at 8448 due to the platform limit. The higher chip rating is not substituted.

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.

Not available

21Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact selected Memory Slots row explicitly dual-channel for the 16 GB and 24 GB configurations. This retains the laptop maker logical dual-channel classification. Chip-maker count of eight 16-bit subchannels is a different counting convention and is not copied here.

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

Soldered1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026LPDDR5 on board, so it is soldered.

Soldered1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

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

Not available

Not available

RAM slots

Not available

Not available

Free RAM slots

Not available

Not available

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

Not available

16GB1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact fixed-SKU Max Memory explicitly states 16 GB soldered, not upgradable. Global factory 24 GB and 8 GB sibling SKUs are not upgrades to this board.

Storage

7 of 7 differ

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

128GB1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026128G UFS is one of the storage lines. PCWorld and Starry Hope tie 128 GB to CX3402CVA-I5128.6Reviewpcworld.com/article/2642467/asus-chromebook-plus-cx34-review-3.htmlRead 16 October 2026128GB (universal flash storage).

256GB1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

Storage type

UFS1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026UFS storage line.6Reviewpcworld.com/article/2642467/asus-chromebook-plus-cx34-review-3.htmlRead 16 October 2026

NVMe SSD1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

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

Not available

41Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

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

AASUS Chromebook Plus CX34 (CX3402)

Not available

BLenovo IdeaPad Slim 3x (15", Gen 10) 15Q8X10

Form factor	Interface	PCIe generation	PCIe lanes	Count	Occupied
M.2 2242	PCIe NVMe	4	4	1	Yes
M.2 2242	PCIe NVMe	4	4	1	No

Source1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Complete exact table specifies two M.2 2242 PCIe 4.0 x4 sockets. One 256 GB SSD is installed and one storage socket free. Wireless module socket is excluded. Not M.2 2280.

M.2 slots

Not available

2=CalculatedFrom Storage slots

Free storage slots

Not available

1=CalculatedFrom Storage slots

Maximum slot PCIe generation

Not available

4=CalculatedFrom Storage slots

Ports

4 of 7 differ

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

AASUS Chromebook Plus CX34 (CX3402)

Type	Version	Count	Maximum data rate (Gbps)	DP Alt Mode
USB-C	USB 3.2 Gen 1	2	5	Yes
USB-A	USB 3.2 Gen 1	2	5	Not available
HDMI	HDMI 1.4	1	Not available	Not available
3.5 mm audio	Not available	1	Not available	Not available

Source1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 20262x USB 3.2 Gen 1 Type-C support display / power delivery, 2x USB 3.2 Gen 1 Type-A, 1x 3.5mm combo audio jack, 1x HDMI 1.4. 5 Gbps is the USB 3.2 Gen 1 rate. Sides are not stated. Best Buy sheet reported by HelenTech says Thunderbolt 4 for the USB-C ports. The maker says USB 3.2 Gen 1, so the maker value is used.

BLenovo IdeaPad Slim 3x (15", Gen 10) 15Q8X10

Type	Version	Count	Side	Maximum data rate (Gbps)	DP Alt Mode	Maximum charging input (W)
DC in	Not available	1	Left	Not available	Not available	Not available
USB-A	3.2 Gen 1	1	Left	5	Not available	Not available
USB-A	3.2 Gen 1	1	Right	5	Not available	Not available
USB-C	3.2 Gen 1 / DisplayPort 1.2	1	Left	5	Yes	65
HDMI	HDMI 1.4	1	Left	Not available	Not available	Not available
3.5 mm audio	Not available	1	Left	Not available	Not available	Not available
SD card	Not available	1	Right	Not available	Not available	Not available

Source3Owner's manualdocuments.cdn.ifixit.com/UHULoGcjn5wTELMK.pdfRead 8 October 2026Original complete left/right diagrams confirm physical placement and one full-size SD reader. Protocol table supports USB 5 Gbps and DP 1.2. Exact current PSREF explicitly states accepted USB PD 45-65 W input, independently of the main round-tip adapter. Peripheral 5 V/3 A is not converted to an unclaimed watt scalar. SoC USB4 and newer HDMI support are not inherited into this laptop implementation.

USB-C ports

2=CalculatedFrom Ports

1=CalculatedFrom Ports

Thunderbolt

Not available

Not available

Highest HDMI version

HDMI 1.4=CalculatedFrom Ports

HDMI 1.4=CalculatedFrom Ports

Card reader

No=CalculatedFrom Ports

Yes=CalculatedFrom Ports

Ethernet speed

Not available

Not available

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

65W=CalculatedFrom Ports

Wireless

3 of 5 differ

Wi-Fi

Wi-Fi 6E1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026The second network line, for CX3402CVA, reads Wi-Fi 6E (802.11ax) (Triple band) 2*2 + Bluetooth 5.4. PCWorld also lists Wi-Fi 6E.6Reviewpcworld.com/article/2642467/asus-chromebook-plus-cx34-review-3.htmlRead 16 October 2026Networking: Bluetooth 5.3, Wi-Fi 6E. The Bluetooth version conflicts with the ASUS tab (5.4), so it is not stored.

Wi-Fi 71Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

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

2.4 GHz, 5 GHz, 6 GHz1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026Triple band for the Wi-Fi 6E line is 2.4, 5 and 6 GHz.

Not available

Wi-Fi module

Not available

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.

Not available

5.41Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact maker advertised 5.4. PSREF notes actual operation may use a lower version depending on OS, drivers and other factors.

Cellular

No7Spec databasestarryhope.com/chromebooks/models/asus-chromebook-plus-cx34-cx3402cvaRead 16 October 2026Cellular modem: No.

No1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact WWAN Not Supported statement. Generic Snapdragon modem capability is not installed cellular service.

Keyboard and touchpad

6 of 8 differ

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

Not available

English1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact selected Backlit, English row. More specific US/ANSI localization not inferred from country.

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.

None6Reviewpcworld.com/article/2642467/asus-chromebook-plus-cx34-review-3.htmlRead 16 October 2026The reviewer says the keyboard has no backlight and that the 2023 model had one. Starry Hope and a Slickdeals listing agree. A Best Buy sheet reported by HelenTech lists a backlit keyboard, so sources conflict. The reviewer's own unit is used.7Spec databasestarryhope.com/chromebooks/models/asus-chromebook-plus-cx34-cx3402cvaRead 16 October 2026Core i5-1335U model has no keyboard backlight.

Backlit, type not stated1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Maker confirms backlit but does not state a color or RGB topology. Photo key legends do not prove white backlight.

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

Not available

Yes2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/IdeaPad/IdeaPad_Slim_3_15Q8X10/IdeaPad_Slim_3_15Q8X10_Spec.pdfRead 8 October 2026Exact platform explicitly includes a numeric keypad, corroborated by full selected maker photograph and matching review.

Key traveliPhysical key travel distance, not actuation distance.

1.4mm1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 20261.4mm Key-travel.

1.3mm2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/IdeaPad/IdeaPad_Slim_3_15Q8X10/IdeaPad_Slim_3_15Q8X10_Spec.pdfRead 8 October 2026Physical key travel 1.3 mm in exact platform keyboard specification.

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

Not available

No3Owner's manualdocuments.cdn.ifixit.com/UHULoGcjn5wTELMK.pdfRead 8 October 2026Complete matching base-view keyboard diagram and genuine selected maker photo show a touchpad and no dedicated pointing stick.

Touchpad size

Not available

Width120Height75mm(4.7 × 3 in)1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 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.

Not available

Not available

Camera and audio

6 of 7 differ

Webcam

1080p1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 20261080p FHD camera.

720p HD1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

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

Not available

No5Reviewpcworld.com/article/2830609/lenovo-ideapad-slim-3x-review.htmlRead 8 October 2026Matching X1-26-100/16 GB/256 GB/15.3-inch WUXGA IPS touch/720p/Luna Gray/Wi-Fi 7 unit review explicitly says no IR camera for facial recognition. Its separate palm-rest fingerprint sensor remains available.

Webcam privacy

Physical shutter1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026With privacy shutter.

Physical shutter1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

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.

Not available

21Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

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

Not available

4W1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact selected SKU PSREF explicitly publishes stereo speakers, 2 W x2. Combined published driver rating is 4 W under the field contract. RMS versus peak basis is not stated. This is not measured sound pressure or adapter consumption.

Audio features

Not available

Dolby Audio, Qualcomm WCD9385 codec1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact stereo pair 2 W x 2, optimized with Dolby Audio, and Qualcomm WCD9385 codec. Power basis is not classified as RMS or peak. No measured loudness is inferred.

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

Not available

21Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

Battery and power

4 of 5 differ

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

50Wh1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 202650WHrs, 3S1P, 3-cell Li-ion, on both columns.

60Wh1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 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.

AASUS Chromebook Plus CX34 (CX3402)

Not available

BLenovo IdeaPad Slim 3x (15", Gen 10) 15Q8X10

Use case	Hours (h)
Video playback	22.5

Source2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/IdeaPad/IdeaPad_Slim_3_15Q8X10/IdeaPad_Slim_3_15Q8X10_Spec.pdfRead 8 October 2026Manufacturer approximate maximum for 60 Wh models, local 1080p video playback at 150 nits and default volume: 22.5 hours. Test CPU/RAM/storage/display, firmware, wireless state and operating preset are not published. Retained as advertised model/battery-class maximum, not exact reviewed runtime. 50 Wh 18.5-hour claim excluded.

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.

45W1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026TYPE-C, 45W AC Adapter, Output: 15V DC, 3A, 45W.

65W1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact 65 W Round Tip 3-pin adapter. This differs from alternative USB-C adapter offerings and does not establish peripheral output power.

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.

USB-C1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026Type-C adapter output, so the laptop end is USB-C.

Barrel1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 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

1 of 4 differ

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

Not available

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.

AASUS Chromebook Plus CX34 (CX3402)

Not available

BLenovo IdeaPad Slim 3x (15", Gen 10) 15Q8X10

Name
Best Performance
Best Power Efficiency

Source3Owner's manualdocuments.cdn.ifixit.com/UHULoGcjn5wTELMK.pdfRead 8 October 2026Original guide explicitly names Windows Best Performance and Best Power Efficiency, with Fn+Q switching active power mode. These are Windows power modes, not invented OEM fan presets. Unnamed third Windows mode and numerical configured power limits remain unavailable.

Security

2 of 4 differ

Fingerprint

Not available

Separate1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact table Touch Style, on Palm Rest. Matching PCWorld review locates separate sensor below the number-pad Enter key, not within the power button, keyboard key or touchpad.

TPM

Not available

2.01Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 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.

Not available

Not available

Software

3 of 3 differ

Operating system

ChromeOS1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026ChromeOS.

Windows 11 Home (on ARM)1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact English Windows 11 Home on ARM reference. PSREF End of Support 2031-03-28 is not a guaranteed OS/security-update endpoint and is not stored as security_updates_until.

OS family

ChromeOS1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026ChromeOS.

Windows1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 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.

June 20324Maker product pagesupport.google.com/chrome/a/answer/6220366Read 16 October 2026Google Auto Update policy lists Chromebook Plus CX34 (CX3402CVA) with Auto Update Expiration Jun 2032.

Not available

Measured display

1 of 12 differ

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

296.2nits6Measurementtomsguide.com/computing/laptops/lenovo-ideapad-slim-3x-reviewRead 8 October 2026Published average brightness 296.2 nits for X1-26-100/16 GB/256 GB/15.3-inch WUXGA IPS touch. Current standard lab method uses five-point mean with Klein K10-A and ChromaSurf. This is not the table 310-nit peak or a center-point value. The separately stated 48.4% DCI-P3 result is gamut volume per method and is not stored as coverage.7Measurementtomsguide.com/computing/how-we-test-laptops-tablets-pcsRead 8 October 2026Standard display method explicitly Klein K10-A/ChromaSurf and a five-point average. Default retail manufacturer display settings. Color gamut is explicitly volume, so no volume result is imported into a coverage field.

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

3 of 10 differ

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

AASUS Chromebook Plus CX34 (CX3402)

Not available

BLenovo IdeaPad Slim 3x (15", Gen 10) 15Q8X10

Test	Brightness (nits)	Hours (h)
Video playback	250	16.37
Wi-Fi browsing	150	16.48

Source5Reviewpcworld.com/article/2830609/lenovo-ideapad-slim-3x-review.htmlRead 8 October 2026First row only is this review: average 982 minutes, converted to 16.37 h, Windows 11 local 4K Tears of Steel loop at 250 nits, airplane mode enabled, until system suspends. Test power mode, firmware and playback software not named. Matching CPU, RAM, SSD capacity and IPS touch display. The second row is separately sourced Tom's Guide Wi-Fi test, not another PCWorld result. Cinebench R24, Time Spy overall and Night Raid scores lack required minor-version/profile proof and are excluded.6Measurementtomsguide.com/computing/laptops/lenovo-ideapad-slim-3x-reviewRead 8 October 2026Second table row only: exact review reports 16 hours 29 minutes, converted to 16.48 h. Current published Tom's Guide standard laptop battery method is Edge page cycling on closed Wi-Fi at 150 nits with background applications, keyboard lighting, Bluetooth and location services disabled, and a custom battery test plan whose name is not stated. Review does not disclose firmware or a named device preset. Linked shopping offers now have 512 GB, but original tested specification table explicitly retains 256 GB, which is the selected record.7Measurementtomsguide.com/computing/how-we-test-laptops-tablets-pcsRead 8 October 2026Standard laptop battery procedure, closed Wi-Fi Edge page cycle at 150 nits and a custom power plan. Used only to document the Tom's Guide row. PCWorld local video row has its own separately published conditions.

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

Not available

16.48h=CalculatedFrom Battery runtime per test

Video runtimeiMeasured by a reviewer, not claimed by the maker

Not available

16.37h=CalculatedFrom Battery runtime per test

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Certifications

3 of 6 differ

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

Not available

Not available

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

Not available

Yes1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact selected AI PC Category Copilot+ PC, not a claim based on a Copilot keyboard key.

Colour certifications

Not available

Not available

ENERGY STAR

Yes1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026Ecolabels line: Energy star 8.0 on both columns. EPEAT Gold appears on one column only and is not stored.

Yes1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact maker ENERGY STAR 9.0 claim, not independently checked against a registry.

EPEAT

Not available

Gold1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact selected EPEAT 1.0 Gold Registered maker claim. Other-region tiers and independent registry verification are not asserted.

Other certifications

FSC Mix1Maker product pageasus.com/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026FSC Mix, listed under Ecolabels & Compliances.

TÜV Rheinland Low Blue Light (Software Solution), ErP Lot 6/26, RoHS compliant1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

In the box

1 of 2 differ

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

Not available

65 W round-tip power adapter1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact selected supplied round-tip adapter only. Bundled Accessories None excludes optional mouse, sleeve or backpack.

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

Yes2Maker product pageasus.com/us/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026The ASUS USA Power Supply row lists the 45W Type-C wall-mount adapter and no adapter-free option. The global tab also lists adapter-free options for other regions.

Yes1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact selected adapter row identifies the supplied 65 W round-tip adapter. Matching original guide and reviewed unit independently show the included round-tip supply. Regional no-adapter offerings are excluded.

Warranty

2 of 2 differ

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.

Not available

1year1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

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

Not available

Collect and return, Carry-in1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact US one-year Courier or Carry-in manufacturer warranty. No included upgrade. Courier maps to collect-and-return rather than onsite.

Links

Not compared

Product page

www.asus.com/us/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx34023Maker product pageasus.com/us/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402Read 16 October 2026

psref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X101Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026Exact current manufacturer configuration-reference page for 83N30000US. Original maker storefront offers can change to larger-storage SKUs, so this stable maker identity reference is retained.

Spec sheet

www.asus.com/us/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspec2Maker product pageasus.com/us/laptops/for-home/chromebook/asus-chromebook-plus-cx34-cx3402/techspecRead 16 October 2026ASUS USA tech spec tab for the CX3402 family.

psref.lenovo.com/syspool/Sys/PDF/IdeaPad/IdeaPad_Slim_3_15Q8X10/IdeaPad_Slim_3_15Q8X10_Spec.pdf1Maker product pagepsref.lenovo.com/Detail/IdeaPad_Slim_3_15Q8X10Read 8 October 2026

Manual

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documents.cdn.ifixit.com/UHULoGcjn5wTELMK.pdf3Owner's manualdocuments.cdn.ifixit.com/UHULoGcjn5wTELMK.pdfRead 8 October 2026Unmodified original Lenovo Second Edition April 2025 user guide from public iFixit document mirror. About this guide explicitly includes IdeaPad Slim 3 15Q8X10 and machine type 83N3. Current official support HTML was opened but its PDF control did not yield a file after bounded attempts, so the readable original mirror was used.

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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Both are also in the API. Back to all laptops.