ThinkPads

ThinkPad X1 Extreme Gen 4

2021. X1 Series. No longer sold by Lenovo. Previous: X1 Extreme Gen 3. Next: X1 Extreme Gen 5.

Compare it with every X1 Extreme generation or every ThinkPad.

RAM
64 GB, 2× SODIMM
SSD
2× M.2 2280, PCIe 3.0 / 4.0
Screen
16" 2560×1600, 3840×2400
Ports
2× TB4, 2× USB-A
Battery
90 Wh
Weight
from 1.81 kg

Display

16", 16:10

ResolutionPanelNitsHzTouchGamutSurface
2560×1600 WQXGAIPS400––100% sRGBAnti-glare
3840×2400 WQUXGAIPS600––100% Adobe RGBAnti-glare
3840×2400 WQUXGAIPS600–yes100% Adobe RGBAnti-reflection, anti-smudge

Processor

Family
11th Generation Intel Core i7 / i9 Processor
Options
Core i7-11800H, Core i7-11850H, Core i9-11950H
Integrated graphics
Intel UHD Graphics
Discrete graphics
NVIDIA GeForce RTX 3050 Ti, NVIDIA GeForce RTX 3060, NVIDIA GeForce RTX 3070, NVIDIA GeForce RTX 3080

Memory

Maximum
  • Up to 64GB DDR4-3200
Slots
Two DDR4 SO-DIMM slots, dual-channel capable
Type
DDR4-3200

Storage

Slots
  • Models with Intel UHD Graphics or RTX 3050 Ti Graphics: two M.2 slots • One M.2 2280 PCIe 3.0 x4 slot • One M.2 2280 PCIe 4.0 x4 slot
  • Models with RTX 3060/3070/3080 Graphics: one M.2 slot • One M.2 2280 PCIe 4.0 x4 slot
Maximum
  • Models with RTX 3060/3070/3080 graphics: one drive, up to 2TB M.2 2280 SSD
  • Models with Intel UHD Graphics or RTX 3050 Ti graphics: up to two drives, 2x M.2 SSD • M.2 2280 SSD up to 2TB • RAID 0/1 support

Ports

Standard
  • 1x USB 3.2 Gen 1
  • 1x USB 3.2 Gen 1 (Always On)
  • 2x Thunderbolt 4 / USB4 40Gbps (support data transfer, Power Delivery 3.0 and DisplayPort 1.4)
  • 1x SD card reader
  • 1x Headphone / microphone combo jack (3.5mm)
  • 1x Power connector
Optional
  • 1x Nano-SIM card slot (WWAN support models)
  • 1x HDMI 2.0 (models with integrated graphics)
  • 1x HDMI 2.1 (models with discrete graphics)
Card reader
SD, supports UHS-II SD card
Smart card
no

Wireless

Wi-Fi
  • Intel Wi-Fi 6E AX210, 802.11ax 2x2 Wi-Fi + Bluetooth 5.1
WWAN
  • Qualcomm Snapdragon X55 5G Modem-RF System, Sub-6 GHz, M.2 card, with embedded eSIM functionality
  • No support

Body

Dimensions
359.5 x 253.8 x 17.7 mm
Weight
from 1.81 kg
Battery
90 Wh
Materials
Carbon fiber hybrid (top), aluminium alloy (bottom)
Colours
Black, paint, Black, weave

Input

Keyboard
6-row, spill-resistant, multimedia Fn keys with Unified Communications controls
Backlight
yes
TrackPoint and pad
TrackPoint pointing device and glass surface multi-touch touchpad

Camera and security

Camera
1080p, 1080p + IR
Fingerprint
yes
TPM
Discrete TPM 2.0, TCG certified

Operating system

Preloads
  • Linux
  • Ubuntu Linux
  • Windows 10 Home 64
  • Windows 10 Home 64 Single Language
  • Windows 10 Pro 64
  • Windows 11 DG Windows 10 Pro 64
  • Windows 11 Home
  • Windows 11 Home Single Language
  • Windows 11 Pro
  • No operating system

Source: Lenovo PSREF, product page and PDF. PSREF last changed this spec on 2023-08-18. Pulled 2026-09-20. Raw JSON for every model: /thinkpads.json.