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Lenovo ThinkPad X1 Carbon Gen 12 21KC008PVN vs Lenovo ThinkPad X1 Carbon Gen 14 Aura Edition

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ThinkPad X1 Carbon Gen 12 21KC008PVN

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Product B: Lenovo

ThinkPad X1 Carbon Gen 14 Aura Edition

92 of 179 known

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Every value links to where we found it.

Only differences

ALenovo ThinkPad X1 Carbon Gen 12 21KC008PVN

BLenovo ThinkPad X1 Carbon Gen 14 Aura Edition

General

2 of 9 differ

Series

ThinkPad X1 Carbon1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026ThinkPad X1 Carbon.

ThinkPad X1 Carbon1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

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

21KC008PVN1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026PSREF model 21KC008PVN, machine type 21KC. Region ASEAN, country Vietnam.

21V70021UK1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Live exact configuration re-opened on October 8. Core Ultra 7 355, 32 GB LPDDR5x-7467, 512 GB PCIe 5.0 NVMe, WUXGA IPS touch and UK keyboard confirmed. SKU Announce Date March 24 is not substituted for the first family announcement.

GTIN / EAN

1975306250081Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026EAN / UPC / JAN field of the PSREF model table.

01992753759411Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

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

Not available

Not available

Status

Not available

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

Lenovo ThinkPad X1 Carbon Gen 13 Aura Edition 21NS0014US10Reviewnotebookcheck.net/Now-available-to-order-in-many-countries-Panther-Lake-powered-Lenovo-ThinkPad-X1-Carbon-Gen-14-releases.1245998.0.htmlRead 23 October 2026Notebookcheck calls the X1 Carbon Gen 13 the older model and the predecessor of the new X1 Carbon Gen 14.

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.

Lenovo ThinkPad X1 Carbon Gen 13 Aura Edition 21NS0014US5Reviewnotebookcheck.net/Lenovo-ThinkPad-X1-Carbon-Gen-13-Aura-Edition-laptop-review-The-X1-Carbon-is-finally-back.924998.0.htmlRead 23 October 2026Notebookcheck calls the Gen 13 Aura Edition the new version of last year's X1 Carbon Gen 12 and refers to the Gen 12 as its predecessor.6Reviewultrabookreview.com/72439-lenovo-thinkpad-x1carbon-reviewRead 23 October 2026Ultrabookreview says the X1 Carbon Gen 13 uses the Gen 12 chassis and calls the Gen 12 the previous X1 Carbon.

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.

VN1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026PSREF lists this exact model for Vietnam.

GB1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

ColoursiThe maker's own colour names

Black, Paint1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026PSREF Case Color: Black, Paint.

Black1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Segment

Business1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026ThinkPad X1 is Lenovo's business line.

Business4Retailer pagelaptopsdirect.co.uk/lenovo-thinkpad-x1-carbon-intel-core-ultra-7-355-32gb-ram-512gb-ssd-14-inch-21v70021uk/version.aspRead 5 October 2026Exact 21V70021UK Windows 11 Pro ThinkPad business listing and current sold configuration. Adapter facts use maker configuration table.

Form factor

Clamshell1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026Hinged clamshell chassis.

Clamshell3Owner's manualgzhls.at/blob/ldb/4/4/5/9/3087287825c05aab2db52a39928b8a6219c0.pdfRead 5 October 2026Pages 1-5 show a hinged clamshell notebook, distinct from ThinkPad X1 2-in-1 Gen 11.

Chassis

2 of 6 differ

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

Width312.8Depth214.75Thickness (max)14.96mm(12.3 × 8.5 × 0.6 in)1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026312.80 x 214.75 x 14.96 mm. May vary by configuration.

Not available

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

1.09kg(2.4 lb)1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026Published as starting at 1.09 kg for models with the haptic touchpad. Varies by configuration.

0.998kg(2.2 lb)1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Exact SKU starting weight 0.998 kg. This is approximate laboratory weight for Haptic Touchpad models, not a weighed retail unit.

Lid material

Carbon fibre1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 20262Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_12/ThinkPad_X1_Carbon_Gen_12_Spec.pdfRead 10 October 2026Case material: carbon fiber (top), aluminium (bottom).

Carbon fibre1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Exact Case Material row: Carbon Fiber top, Aluminium bottom. OLED models use a different bottom material and are excluded.

Bottom material

Aluminium1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 20262Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_12/ThinkPad_X1_Carbon_Gen_12_Spec.pdfRead 10 October 2026Case material: carbon fiber (top), aluminium (bottom).

Aluminium1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 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.

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 20262Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_12/ThinkPad_X1_Carbon_Gen_12_Spec.pdfRead 10 October 2026MIL-STD-810H military test passed. Test list not published.

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Exact Certifications row claims MIL-STD-810H test passed. No blanket claim that every standard procedure was passed.

Display

13 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 pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

14in(35.6 cm)1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Native resolution

2880 × 1800px1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

1920 × 1200px1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Pixel density

242.6ppi=CalculatedFrom Screen size and Native resolution

161.7ppi=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 pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

IPS1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Backlight

None (self-emissive)1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

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.

Samsung ATNA40YK20-04Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Spec table: Samsung ATNA40YK20-0, OLED, 2880 x 1800.

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.

Not available

Matte1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Touchscreen

No1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Stylus

None1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

None1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 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.

ALenovo ThinkPad X1 Carbon Gen 12 21KC008PVN

Width (px)	Height (px)	Maximum operating refresh (Hz)	VRR
2880	1800	120	No

Source1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026120 Hz OLED. The review found no adaptive sync or Windows VRR support, and the panel ships set to 60 Hz.

BLenovo ThinkPad X1 Carbon Gen 14 Aura Edition

Width (px)	Height (px)	Maximum operating refresh (Hz)
1920	1200	60

Source1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Max refresh rate

120Hz=CalculatedFrom Refresh rate modes

60Hz=CalculatedFrom Refresh rate modes

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.

400nits1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026400 nits.

500nits1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Live exact Model 21V70021UK Display row: 14-inch WUXGA IPS, 500 nits, anti-glare, 100% sRGB, 60 Hz, Low Power, Touch. Not the optional 2.8K OLED panel. No HDR brightness inferred.

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

100%1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Exact Display row: 100% sRGB. Measurement method unstated.

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

100%1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026PSREF lists 100% DCI-P3.

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

DisplayHDR True Black 5001Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026DisplayHDR True Black 500, Dolby Vision.

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

12 of 14 differ

Processor

Intel Core Ultra 7 155H1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026Intel Core Ultra 7 155H, 16 cores (6P + 8E + 2LPE), 22 threads, max turbo up to 4.8 GHz, 24 MB Intel Smart Cache.

Intel Core Ultra 7 3551Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Processor brand

Intel1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Intel1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 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.

ALenovo ThinkPad X1 Carbon Gen 12 21KC008PVN

Core type	Count	Core	Base clock (GHz)	Max clock (GHz)
Performance	6	Redwood Cove	1.4	4.8
Efficiency	8	Crestmont	0.9	3.8
Low-power efficiency	2	Crestmont	0.7	2.5

Source2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_12/ThinkPad_X1_Carbon_Gen_12_Spec.pdfRead 10 October 2026Core Ultra 7 155H row: P-core 1.4 GHz base and 4.8 GHz max, E-core 900 MHz and 3.8 GHz, LP E-core 700 MHz and 2.5 GHz. Core names come from the Notebookcheck review.4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Spec table: Redwood Cove P-cores, Crestmont E-cores and Crestmont low-power E-cores.

BLenovo ThinkPad X1 Carbon Gen 14 Aura Edition

Core type	Count	Base clock (GHz)	Max clock (GHz)
Performance	4	2.3	4.7
Low-power efficiency	4	1.7	3.5

Source2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_14_Aura_Edition/ThinkPad_X1_Carbon_Gen_14_Aura_Edition_Spec.pdfRead 5 October 2026Page 2 Core Ultra 7 355 row: four P cores and four LP E cores, with separate base and maximum frequencies.

CPU cores

16=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.

6=CalculatedFrom Core configuration

4=CalculatedFrom Core configuration

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

10=CalculatedFrom Core configuration

4=CalculatedFrom Core configuration

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

221Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

81Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Max boost clock

4.8GHz=CalculatedFrom Core configuration

4.7GHz=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.

24MB1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026PSREF names 24 MB Intel Smart Cache, which is the shared L3.

12MB1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

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.

Not available

1.8nm8Maker product pageintel.com/content/www/us/en/products/sku/245722/intel-core-ultra-7-processor-355-12m-cache-up-to-4-70-ghz/specifications.htmlRead 8 October 2026Exact installed Core Ultra 7 355 CPU Lithography Intel 18A. Nominal process-class numeric value is separately supported by Intel written testimony. Generic chip power and maximum RAM are not laptop configured values.9Maker spec sheet (PDF)d1dth6e84htgma.cloudfront.net/HHRG_119_IF_17_Wstate_Grebe_J_20260415_77d1a28e09.pdfRead 8 October 2026Intel written testimony, printed page 2, explicitly calls Intel 18A advanced 1.8 nanometer-class technology. Numeric value names the nominal process class, not transistor gate dimensions. Exact Core Ultra 7 355 page identifies this CPU process, distinct from Intel 3 GPU tile.

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.

25W4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Spec table: 25 W PL1 sustained. Reported for the review unit.

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.

56W4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Spec table: 56 W PL2 short burst. Reported for the review unit.

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.

11TOPS1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026Integrated Intel AI Boost, up to 11 TOPS.

49TOPS1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Up to 49 TOPS, NPU only. Precision and sustained performance unstated.

Graphics

1 of 9 differ

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

No1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

No1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

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 Arc Graphics1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026Integrated Intel Arc Graphics.

Intel Graphics1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Memory

3 of 9 differ

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

32GB1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 202632 GB soldered LPDDR5X-6400.

32GB1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

RAM type

LPDDR5X1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

LPDDR5X1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

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

6,400MT/s1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026Runs at LPDDR5X-6400. PSREF notes the installed memory is rated LPDDR5X-7500 but runs at 6400 due to a platform limit.

7,467MT/s1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 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.

Not available

21Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Memory Slots row explicitly states soldered memory, no slots, dual-channel.

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

Soldered1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Soldered1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 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.

64GB2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_12/ThinkPad_X1_Carbon_Gen_12_Spec.pdfRead 10 October 2026Max Memory lists 16, 32 and 64 GB soldered options, not upgradable. The maximum is a purchase-time option. The stored model has 32 GB.

32GB1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Exact SKU Max Memory: 32 GB soldered, not upgradable. Family 64 GB offerings use other processor configurations.

Storage

4 of 7 differ

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

1TB1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 20261 TB. Decimal capacity, 1 TB = 1000 GB.

512GB1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Storage type

NVMe SSD1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

NVMe SSD1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

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

41Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

51Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Exact installed Storage row says PCIe 5.0 x4 Performance NVMe Opal 2.0. This differs from PCIe 4.0 installed drives in other SKUs.

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

ALenovo ThinkPad X1 Carbon Gen 12 21KC008PVN

Form factor	Interface	PCIe generation	PCIe lanes	Count	Occupied
M.2 2280	PCIe NVMe	4	4	1	Yes

Source1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026One M.2 2280 PCIe 4.0 x4 slot. The 1 TB drive occupies it.

BLenovo ThinkPad X1 Carbon Gen 14 Aura Edition

Form factor	Interface	PCIe generation	PCIe lanes	Count	Occupied
M.2 2280	PCIe NVMe	5	4	1	Yes

Source1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026One M.2 2280 PCIe 5.0 x4 slot, occupied by the documented single SSD. User Guide page 7 supports single-sided replacement drives only.

M.2 slots

1=CalculatedFrom Storage slots

1=CalculatedFrom Storage slots

Free storage slots

0=CalculatedFrom Storage slots

0=CalculatedFrom Storage slots

Maximum slot PCIe generation

4=CalculatedFrom Storage slots

5=CalculatedFrom Storage slots

Ports

3 of 7 differ

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

ALenovo ThinkPad X1 Carbon Gen 12 21KC008PVN

Type	Version	Count	Side	Maximum data rate (Gbps)	Thunderbolt or USB4	DP Alt Mode
USB-C	Thunderbolt 4 / USB4 40Gbps	2	Left	40	Thunderbolt 4	Yes
USB-A	USB 5Gbps / USB 3.2 Gen 1 (Always On)	1	Left	5	Not available	Not available
USB-A	USB 5Gbps / USB 3.2 Gen 1	1	Right	5	Not available	Not available
HDMI	HDMI 2.1	1	Right	Not available	Not available	Not available
3.5 mm audio	Not available	1	Right	Not available	Not available	Not available

Source1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026Standard ports: 1x USB-A (USB 5Gbps, Always On), 1x USB-A (USB 5Gbps), 2x USB-C (Thunderbolt 4 / USB4 40Gbps) with USB PD 3.0 and DisplayPort 2.1, 1x HDMI 2.1 up to 4K/60Hz, 1x 3.5 mm combo jack. Connector sides come from the Notebookcheck review.4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Left: USB-A, 2x USB-C Thunderbolt 4, Nano-SIM slot on WWAN models. Right: power button, 3.5 mm audio, USB-A, HDMI 2.1, Kensington lock slot.

BLenovo ThinkPad X1 Carbon Gen 14 Aura Edition

Type	Version	Count	Side	Maximum data rate (Gbps)	Thunderbolt or USB4	DP Alt Mode	Maximum charging input (W)
USB-C	Thunderbolt 4 / USB4 / DisplayPort 2.1	1	Right	40	Thunderbolt 4	Yes	65
USB-C	Thunderbolt 4 / USB4 / DisplayPort 2.1	2	Left	40	Thunderbolt 4	Yes	65
USB-A	USB 5Gbps	1	Right	5	Not available	Not available	Not available
HDMI	HDMI 2.1	1	Left	Not available	Not available	Not available	Not available
3.5 mm audio	Not available	1	Left	Not available	Not available	Not available	Not available
Other	Nano-SIM card slot	1	Right	Not available	Not available	Not available	Not available

Source1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Exact SKU configured Nano-SIM card slot is retained. WWAN row says upgradable to 4G or 5G, not an installed cellular modem. Cellular boolean is omitted.3Owner's manualgzhls.at/blob/ldb/4/4/5/9/3087287825c05aab2db52a39928b8a6219c0.pdfRead 5 October 2026Page 4 unlabelled side elevations establish port groups, corroborated by explicit physical-side review text: right one TB4, one USB-A, Nano-SIM and security slot. Left HDMI, two TB4 and audio. Page 5 lists TB4 40 Gbps. Exact PSREF provides each TB4 accepted USB PD 15-65 W. Generic peripheral-output claims are not treated as maximum output.6Reviewtomshardware.com/laptops/lenovo-thinkpad-x1-carbon-gen-14-aura-edition-reviewRead 5 October 2026Explicit port-location prose: HDMI 2.1, two TB4 and headphone jack on left, one TB4 and USB-A on right. Used only for chassis port locations, corroborating maker diagram. Performance and display measurements of another configuration are excluded.

USB-C ports

2=CalculatedFrom Ports

3=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

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

4 of 5 differ

Wi-Fi

Wi-Fi 6E1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Wi-Fi 71Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

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

2.4 GHz, 5 GHz, 6 GHz4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Intel AX211 spec line: Wi-Fi 6E with the 6 GHz band, plus Wi-Fi 4, 5 and 6 on 2.4 and 5 GHz.

2.4 GHz, 5 GHz, 6 GHz7Maker spec sheet (PDF)cdrdv2-public.intel.com/867862/Intel-wifi-adapter-information-guide-BE211.pdfRead 8 October 2026Exact PSREF identifies installed Intel Wi-Fi 7 BE211. Intel adapter guide Specifications and regulatory antenna tables explicitly cover 2.4, 5 and 6 GHz bands for BE211. Hardware band support, subject to regional channels and compatible AP. No Bluetooth 6.0 upgrade inferred from chip capability.

Wi-Fi module

Intel Wi-Fi 6E AX2111Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Intel Wi-Fi 7 BE2111Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

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.

5.31Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

5.41Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Current exact SKU WLAN row says Bluetooth 5.4. Platform describes Bluetooth 6.0 hardware ready, not confirmed active Bluetooth 6.0.

Cellular

No1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026PSREF: WWAN Not Supported for this model.

Not available

Keyboard and touchpad

2 of 8 differ

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

English1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026PSREF: Backlit, English.

English (UK)1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 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.

Backlit, type not stated1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026PSREF lists Backlit. The type and colour are not stated.

Backlit, type not stated1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Live exact model Keyboard row explicitly Backlit, English (UK). Colour and lighting type not specified, so backlit_unspecified is used.

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

Not available

Not available

Key traveliPhysical key travel distance, not actuation distance.

1.5mm2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_12/ThinkPad_X1_Carbon_Gen_12_Spec.pdfRead 10 October 2026Key travel 1.5 mm, 1.35 mm on the Fn row and the G, H and B keys.

1.5mm2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_14_Aura_Edition/ThinkPad_X1_Carbon_Gen_14_Aura_Edition_Spec.pdfRead 5 October 2026Page 6 Keyboard: 1.5 mm normal keys, 1.35 mm Fn row and G/H/B. The stored normal-key figure is not uniform across all keys.

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

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Yes2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_14_Aura_Edition/ThinkPad_X1_Carbon_Gen_14_Aura_Edition_Spec.pdfRead 5 October 2026Page 6 both UltraNav options explicitly include TrackPoint pointing device.

Touchpad size

Width120Height70.5mm(4.7 × 2.8 in)2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_12/ThinkPad_X1_Carbon_Gen_12_Spec.pdfRead 10 October 2026Haptic Touchpad 70.5 x 120 mm. The 3-button trackpad option is 56.2 x 120 mm.

Width130Height80mm(5.1 × 3.1 in)2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_14_Aura_Edition/ThinkPad_X1_Carbon_Gen_14_Aura_Edition_Spec.pdfRead 5 October 2026Page 6 exact Haptic Touchpad option: 80 x 130 mm. Physical width 130 mm, depth 80 mm. Mechanical 80 x 120 mm Trackpad excluded.

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

Haptic1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026PSREF: Haptic Touchpad for this model.

Haptic1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Exact Touchpad row: Haptic Touchpad. Ordinary Trackpad configurations are excluded.

Camera and audio

1 of 7 differ

Webcam

FHD 1080p1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026FHD 1080p + IR discrete with privacy shutter.

5.0MP1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

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

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Webcam privacy

Physical shutter1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Physical shutter3Owner's manualgzhls.at/blob/ldb/4/4/5/9/3087287825c05aab2db52a39928b8a6219c0.pdfRead 5 October 2026Page 1: slide webcam privacy shutter to cover camera lens. This is a physical cover, separate from camera-disable software.

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.

21Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

21Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

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

4W1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026Stereo speakers, 2 W x 2.

4W1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Audio features

Dolby Atmos1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Dolby Atmos1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

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

21Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 20262x array microphones.

21Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Battery and power

2 of 5 differ

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

57Wh1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 202657 Wh.

58Wh1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 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.

ALenovo ThinkPad X1 Carbon Gen 12 21KC008PVN

Use case	Hours (h)
MobileMark 25	11.6
Video playback	15.9
Idle	15.5

Source2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_12/ThinkPad_X1_Carbon_Gen_12_Spec.pdfRead 10 October 2026Alternate configuration 3 in the spec sheet: 2.8K OLED non-touch, Core Ultra 7 155H, 16 GB LPDDR5X, 57 Wh, best power efficiency mode. MobileMark 25 up to 11.6 h at 250 nits. Local video playback up to 15.9 h at 150 nits. JEITA 3.0 idle up to 15.5 h at 200 nits. The stored model has 32 GB RAM, not the tested 16 GB. Claims, not measurements.

BLenovo ThinkPad X1 Carbon Gen 14 Aura Edition

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.

65W1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 202665W USB-C Slim (3-pin) adapter.

65W1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 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.

USB-C1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026Charges over USB-C.

USB-C1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 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.

24Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Cooling uses two 30 mm fans and one heatpipe.

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.

Not available

Not available

Security

1 of 4 differ

Fingerprint

Keyboard key1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Power button1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

TPM

2.01Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026Discrete TPM 2.0.

2.01Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 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.

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Software

0 of 3 differ

Operating system

Windows 11 Pro1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026Windows 11 Pro, English.

Windows 11 Pro1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

OS family

Windows1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Windows1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 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.

Not available

Not available

Measured display

9 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.

417nits4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Review unit: Core Ultra 7 155H, 32 GB LPDDR5X-6400, Kioxia XG8 1 TB, 2.8K OLED non-touch, Samsung ATNA40YK20-0, same hardware as this SKU. The unit had a trackpad with TrackPoint buttons while this SKU has a haptic touchpad. Centre brightness 417 cd/m2, X-Rite i1Pro 2.

Not available

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

417.4nits4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Average of the brightness grid, 417.4 cd/m2.

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.

100%4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Argyll 3D, sRGB 100%. Display P3 99.7% is a different target and is not stored.

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.

1.264Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Calman ColorChecker dE 2000 mean 1.26 before calibration, 0.68 after.

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.

Yes4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026PWM flicker found.

Not available

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

240Hz4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Constant 240.3 Hz.

Not available

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

100%4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026The review measured the same 240 Hz from 0 to 100 percent brightness, so flicker is present at every setting.

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.

0.76ms4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Black to white 0.76 ms (rise 0.41, fall 0.35).

Not available

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

0.91ms4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 202650% grey to 80% grey 0.91 ms (rise 0.54, fall 0.37).

Not available

Measured performance

6 of 8 differ

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

698points4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Cinebench 2024 CPU multi core, 698 points. Windows power mode set to Best performance before the benchmarks.

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.

2,420points4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Geekbench 6.7 single-core, Windows Best performance mode.

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.

12,171points4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Geekbench 6.7 multi-core, Windows Best performance mode.

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.

3,001points4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 20263DMark Time Spy graphics score 3001 at 2560 x 1440, Windows Best performance mode.

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

6,593MB/s4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026CrystalDiskMark 5/6 sequential read Q32T1, 6593 MB/s. Kioxia XG8 KXG8AZNV1T02.

Not available

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

ALenovo ThinkPad X1 Carbon Gen 12 21KC008PVN

Game	Width (px)	Height (px)	Preset	Upscaling	Average FPS
Baldur's Gate 3	1920	1080	Ultra	Not available	24.4
The Witcher 3	1920	1080	Ultra (HBAO+)	Not available	25.5
Far Cry 5	1920	1080	Ultra	Not available	36
Cyberpunk 2077	1920	1080	High	Off	22.5

Source4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 20261920 x 1080 average fps at the preset named by the review. Cyberpunk 2077 with FSR off. Windows Best performance mode.

BLenovo ThinkPad X1 Carbon Gen 14 Aura Edition

Not available

Measured noise and temperature

6 of 9 differ

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

ALenovo ThinkPad X1 Carbon Gen 12 21KC008PVN

Power mode	Load	Noise (dB(A))
Windows Best performance	Idle	24
Windows Best performance	Medium load	31.5
Windows Best performance	Gaming	37.8
Windows Best performance	Max load	37.8

Source4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Measured at 15 cm with an Earthworks M23R and Arta. Ambient 23.8 dB(A). Idle 24 dB(A), 3DMark 06 load average 31.5 dB(A), maximum 37.8 dB(A) in Witcher 3 and other demanding tasks. Windows Best performance mode.

BLenovo ThinkPad X1 Carbon Gen 14 Aura Edition

Not available

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

37.8dB(A)=CalculatedFrom Fan noise per mode

Not available

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

37.8dB(A)=CalculatedFrom Fan noise per mode

Not available

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

44.2°C4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Hottest point on the top after the Prime95 and FurMark stress test, room 20 C.

Not available

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

41.2°C4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Hottest point on the bottom after the stress test, room 20 C.

Not available

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

25.6°C4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Palm rest and touchpad area under the stress test, 25.6 C.

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

6 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.

ALenovo ThinkPad X1 Carbon Gen 12 21KC008PVN

Test	Power mode	Hours (h)
Idle	Not stated	17.82
Wi-Fi browsing	Not available	7.77
Max load	Not available	1.17

Source4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Idle with minimum brightness and no Wi-Fi 17 h 49 min. Wi-Fi web browsing 7 h 46 min. Full-brightness load 1 h 10 min. The review does not state the power mode or the Wi-Fi test brightness.

BLenovo ThinkPad X1 Carbon Gen 14 Aura Edition

Not available

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

7.77h=CalculatedFrom Battery runtime per test

Not available

Video runtimeiMeasured by a reviewer, not claimed by the maker

Not available

Not available

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

120min4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026The review states a full charge takes about two hours with the 65 W USB-C adapter. Approximate.

Not available

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

16W4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Highest idle reading 16 W, at maximum display brightness. Idle minimum 3.9 W, average 5.8 W.

Not available

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

50.4W4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Witcher 3 ultra, 1080p, average 50.4 W.

Not available

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

67.4W4Measurementnotebookcheck.com/Lenovo-ThinkPad-X1-Carbon-G12-Laptop-Test-Erstes-grosses-Update-in-drei-Jahren.807241.0.htmlRead 10 October 2026Load maximum 67.4 W in the stress test, with the 65 W adapter.

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

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

Not available

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Certifications

2 of 6 differ

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

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

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

Not available

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Colour certifications

Not available

Not available

ENERGY STAR

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

EPEAT

Gold1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Gold1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Other certifications

Eyesafe Certified 2.0, TCO Certified, generation 10, ErP Lot 6/26, RoHS compliant1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026Green certifications and other certifications lists. EPEAT Gold is registered where applicable.

ErP Lot 6/26, RoHS compliant, TCO Certified generation 10, Eyesafe Certified 2.0, SGS High Performance AI PC Certification 2.01Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 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.

65W USB-C Slim (3-pin) AC adapter1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026Power adapter from the PSREF Power Adapter row. Bundled accessories: none.

65 W USB-C Slim GaN power adapter (3-pin)1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Only exact configured main adapter is retained. Bundled Accessories row says None. No optional Ethernet dongle, WWAN modem or SIM inferred.

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

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

Yes1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Exact configured SKU Power Adapter row selects 65 W USB-C Slim GaN (3-pin), distinct from family No power adapter option. This is the documented main adapter for this SKU.4Retailer pagelaptopsdirect.co.uk/lenovo-thinkpad-x1-carbon-intel-core-ultra-7-355-32gb-ram-512gb-ssd-14-inch-21v70021uk/version.aspRead 5 October 2026Exact 21V70021UK specifications table: Charger Included has explicit check icon. AC adapter power is 65 W. Maker configured SKU row supplies exact Slim GaN 3-pin description.

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.

1year1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026PSREF Base Warranty: 1-year courier or carry-in. PSREF also lists an included 3Y Premier Support upgrade for this model, which is not stored.

3years1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Exact UK SKU base warranty: three years courier or carry-in, with one-year battery. Included 3Y Premier Support WHB upgrade is not added to make six years. Retailer one-year warranty conflicts with the maker exact three-year base term. Maker configuration takes precedence.

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

Carry-in, Collect and return1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026Base warranty is courier or carry-in. The included 3Y Premier Support upgrade is not stored.

Collect and return, Carry-in1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026Base warranty service. Included Premier Support upgrade is named separately, without guessing its coverage from the WHB code.

Links

Not compared

Product page

psref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_121Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_12Read 10 October 2026

psref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_Edition1Maker product pagepsref.lenovo.com/Detail/ThinkPad_X1_Carbon_Gen_14_Aura_EditionRead 8 October 2026

Spec sheet

psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_12/ThinkPad_X1_Carbon_Gen_12_Spec.pdf2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_12/ThinkPad_X1_Carbon_Gen_12_Spec.pdfRead 10 October 2026

psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_14_Aura_Edition/ThinkPad_X1_Carbon_Gen_14_Aura_Edition_Spec.pdf2Maker spec sheet (PDF)psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_X1_Carbon_Gen_14_Aura_Edition/ThinkPad_X1_Carbon_Gen_14_Aura_Edition_Spec.pdfRead 5 October 2026Current September 21, 2026 producer platform PDF read in full. Touch SKU dimensions conflict with touch-family dimensions, so all body dimensions are omitted. Family battery tests name other CPU/RAM configurations and are omitted.

Manual

download.lenovo.com/pccbbs/mobiles_pdf/x1_carbon_gen12_ug_en.pdf3Owner's manualdownload.lenovo.com/pccbbs/mobiles_pdf/x1_carbon_gen12_ug_en.pdfRead 10 October 2026User Guide, first edition December 2023.

support.lenovo.com/us/en/documentation/SG107413Owner's manualgzhls.at/blob/ldb/4/4/5/9/3087287825c05aab2db52a39928b8a6219c0.pdfRead 5 October 2026Complete original Lenovo March 2026 Windows User Guide read at independent document mirror. Printed page 45 confirms ThinkPad X1 Carbon Gen 14, machine types 21V7 and 21V8. Official support page returned only site shell in text access.

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.

Not available

Not available

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