In depth comparison and review of Lenovo ThinkPad X1 Extreme Gen 3 (20TK) and Lenovo ThinkPad X1 Carbon Gen 10 (21CB). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
Advantages and disadvantages of Lenovo ThinkPad X1 Extreme Gen 3 (20TK) based on its technical characteristics, features, user experience, expert reviews and price level.
powerful i7 processor
high-resolution display
robust build quality
ample connectivity options
good thermal management
heavy chassis
expensive price point
average battery life
noisy under load
Advantages and disadvantages of Lenovo ThinkPad X1 Carbon Gen 10 (21CB) based on its technical characteristics, features, user experience, expert reviews and price level.
ultra-lightweight design
impressive battery life
robust security features
high-resolution display
powerful processor performance
higher price point
limited port variety
no dedicated GPU
average speaker quality
| DESIGN AND DIMENSIONS | Lenovo ThinkPad X1 Extreme Gen 3 (20TK) | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) |
|---|
| Product Type | Notebook | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 36.18 cm x 24.57 cm x 1.84 cm | 31.56 cm x 22.25 cm x 1.536 cm |
| Weight | 1.7 kg | 1.12 kg |
| Case Material | Glass-fibre reinforced plastic, carbon fibre reinforced plastic, aluminium alloy | Aluminium (bottom), carbon fibre (top) |
| Colour | Black weave | Deep black weave |
| DISPLAY | Lenovo ThinkPad X1 Extreme Gen 3 (20TK) | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) |
|---|
| Screen Size (Type) | 15.6" | 14" OLED |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 3840 x 2160 (Ultra HD 4K) | 2880 x 1800 (2.8K) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 600 cd/m² | 400 cd/m² |
| Colour Gamut | 100% Adobe RGB | 100% DCI-P3 |
| Features | Anti-glare, Wide Viewing Angle, HDR (high dynamic range), 178° viewing angle, Dolby Vision | Anti-glare, anti-reflective, anti-smudge, 170° viewing angle, Eyesafe technology, HDR 500 True Black |
| PROCESSOR | Lenovo ThinkPad X1 Extreme Gen 3 (20TK) | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) |
|---|
| CPU | Intel Core i7 (10th Gen) 10750H / 2.6 GHz | Intel Core i5 (12th Gen) 1235U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | 5 GHz | 4.4 GHz |
| Number of Cores | 6-core | 10-core |
| Cache | 12 MB | 12 MB |
| 64-bit Computing | Yes | - |
| Chipset | Mobile Intel WM490 | - |
| Platform Technology | - | Intel Evo |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo ThinkPad X1 Extreme Gen 3 (20TK) | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) |
|---|
| RAM | 16 GB (1 x 16 GB) | 16 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 64 GB | - |
| RAM Type | DDR4 SDRAM | LPDDR5 SDRAM |
| Speed | 2933 MHz | 5200 MHz |
| Rated Speed | 3200 MHz | 5200 MHz |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 2 | - |
| Empty Slots | 1 | - |
| STORAGE | Lenovo ThinkPad X1 Extreme Gen 3 (20TK) | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2280 PCIe - TCG Opal Encryption 2, NVM Express (NVMe) | 512 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe), Performance |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad X1 Extreme Gen 3 (20TK) | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) |
|---|
| Multi-GPU Configuration | 1 single GPU card / integrated GPU | - |
|---|---|---|
| Graphics Processor (GPU) | NVIDIA GeForce GTX 1650 Ti / Intel UHD Graphics | Intel Iris Xe Graphics |
| Max Monitors Supported | - | 3 external monitor(s) |
| Video Memory | 4 GB GDDR6 SDRAM | - |
| Video System Features | Max-Q design | - |
| Camera | Yes - 720p | Yes - 1080p |
| Camera Features | IR camera, ThinkShutter camera privacy | Privacy shutter, IR camera, fixed focus, MIPI, Computer Vision |
| Sound | Stereo speakers, dual array microphone | Two tweeters, two woofers, quad array microphone |
| Codec | Realtek ALC3286 | Realtek ALC3306 |
| Compliant Standards | High Definition Audio, Dolby Atmos | High Definition Audio, Dolby Atmos, Dolby Voice |
| Audio Features | 3-magnet speakers | - |
| COMMUNICATIONS | Lenovo ThinkPad X1 Extreme Gen 3 (20TK) | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.1 | NFC, Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6 AX 201 | Intel Wi-Fi 6E AX 211 |
| Network Interface | Gigabit Ethernet | - |
| Features | Dual stream (2x2) | Dual stream (2x2) |
| WWAN |
|---|
| Generation | - | 4G upgradable |
|---|
| BATTERY | Lenovo ThinkPad X1 Extreme Gen 3 (20TK) | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) |
|---|
| Technology | Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 80 Wh | 57 Wh |
| Battery Life | Up to 15.6 hours | Up to 24.9 hours |
| AC ADAPTER | Lenovo ThinkPad X1 Extreme Gen 3 (20TK) | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 135 Watt | 65 Watt |
| INPUT | Lenovo ThinkPad X1 Extreme Gen 3 (20TK) | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Spill-resistant, multi-touch touchpad, buttonless touchpad, Fn keys with Unified Communications controls | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls, glass touchpad, air intake key design |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Extreme Gen 3 (20TK) | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) |
|---|
| Slots | - | 1 x Nano-SIM card (1 free) |
|---|---|---|
| Interfaces | USB 3.2 Gen 1 (Always On) USB 3.2 Gen 1 2 x USB-C 3.2 Gen 2 (supports Thunderbolt 3, DisplayPort 1.4 Alt Mode) (Power Delivery) HDMI Headphone/microphone combo jack LAN (on supplied adapter) |
USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) HDMI Headphone/microphone combo jack |
| Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card) | - |
| SOFTWARE | Lenovo ThinkPad X1 Extreme Gen 3 (20TK) | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition - English | Windows 11 Pro - English |
|---|---|---|
| Software Included | - | Glance by Mirametrix, Intel Connectivity Performance Suite |
| MISCELLANEOUS | Lenovo ThinkPad X1 Extreme Gen 3 (20TK) | Lenovo ThinkPad X1 Carbon Gen 10 (21CB) |
|---|
| Included Accessories | Power adapter, Lenovo USB-C to Ethernet Adapter | USB-C slim power adapter |
|---|---|---|
| Security | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | Kensington security slot | Kensington nano security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested | Administrator password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, USB FIDO (Fast Identity Online) device integration, Firmware Resiliency 3.0 |
| Compliant Standards | RoHS | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified |
| SAR Value | 2.512 W/kg (body), 0.967 W/kg (limb) | - |
| ENERGY STAR Certified | Yes | Yes |
| EPEAT Compliant | EPEAT Gold | EPEAT Gold |
| TCO Certified | TCO Certified Notebooks 8 | - |
| Max Operating Temperature | - | 35 °C |
| Min Operating Temperature | - | 5 °C |
| Humidity Range Operating | - | 8 - 95% |
| Manufacturer Warranty | Limited warranty - 3 years - pick-up and return Limited warranty - battery - 1 year |
Base warranty - 3 years - pick-up and return Limited warranty - battery - 1 year Extended warranty - 3 years - on-site |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
