Lenovo ThinkPad X1 Carbon Gen 9 20XW004NUS vs ThinkPad X1 Carbon Gen 12 21KC005SIX Laptop Comparison

Lenovo ThinkPad X1 Carbon Gen 9 20XW004NUS and Lenovo ThinkPad X1 Carbon Gen 12 21KC005SIX are both laptops with the same CPU Turbo Clock Rate (4800 MHz), Screen Size (14") and Panel Type (IPS). The main differences are in better single-core performance (+20%), better multithreading performance (+62%), CPU and CPU Cores.

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Lenovo ThinkPad X1 Carbon Gen 9 20XW004NUS	Lenovo ThinkPad X1 Carbon Gen 12 21KC005SIX
Prices (Change region) In Stock Free shipping $1,999.99	Prices (Change region) There are no offers available in your selected region. Other merchants are available in another region. Out of Stock + €26.49 Shipping €2,587.56 Out of Stock Free shipping €2,700.96 Out of Stock + €24.20 Shipping €2,866.99 Out of Stock + €6.90 Shipping €2,937.65 Out of Stock Free shipping €3,001.99 Out of Stock + €4.90 Shipping €3,292.00 Out of Stock €3,399.01 Show 4 more offers
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Brand Lenovo	Brand Lenovo
Model 20XW004NUS	Model 21KC005SIX
Release Date 📅 June 2021	Release Date -
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews Add a product review
Single-Core Performance (Charts) (-20%)	Single-Core Performance (Charts) (0%)
Workstation Performance (Charts) (-62%)	Workstation Performance (Charts) (0%)
Gaming Performance (Charts) * Performance may vary depending on the OEM's TGP configuration	Gaming Performance (Charts) n/a
Price history View Details ►	Price history View Details ►
CPU Intel i7-1185G7	CPU Intel Core Ultra 7 155U
CPU Cores 4	CPU Cores 12
CPU Clock Rate 3000 MHz	CPU Clock Rate 1700 MHz
CPU Turbo Clock Rate 4800 MHz	CPU Turbo Clock Rate 4800 MHz
RAM Size 16 GB	RAM Size 32 GB
Memory Type LPDDR4x	Memory Type LPDDR5x
GPU Intel Iris Xe Graphics	GPU Intel Graphics
SSD Capacity 512 GB	SSD Capacity 2000 GB
SSD Type NVMe,PCI Express	SSD Type PCI Express 4.0
Screen Size 14"	Screen Size 14"
Resolution 3840 x 2400	Resolution 1920 x 1200
Panel Type IPS	Panel Type IPS
Refresh Rate 60 Hz	Refresh Rate 60 Hz
Front Camera Yes	Front Camera Yes
Front Camera Resolution HD	Front Camera Resolution -
Dimensions 315 mm x 221.6 mm x 14.9 mm	Dimensions 312.8 mm x 214.8 mm x 15 mm
Operating System Windows 10 Pro	Operating System Windows 11 Pro
Weight 1.13 Kg	Weight 1.09 Kg
Battery Capacity 57 Wh	Battery Capacity 57 Wh
USB 3.2 Gen 1 Type A Ports 2	USB 3.2 Gen 1 Type A Ports 2
USB 4 Gen 3x2 Ports 2	USB 4 Gen 3x2 Ports -
Thunderbolt 4 Ports -	Thunderbolt 4 Ports 2
HDMI Ports 1	HDMI Ports 1
HDMI Version 2.0	HDMI Version 2.1
Fingerprint Reader Yes	Fingerprint Reader Yes
Wi-Fi Generation 6	Wi-Fi Generation 6E
Keyboard Backlit Yes	Keyboard Backlit Yes

Comparison and key differences summary

Reasons to buy the Lenovo ThinkPad X1 Carbon Gen 9 20XW004NUS:

Higher Screen Resolution (3840 x 2400 pixel)
+2 Ports USB 4 Gen 3x2

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Reasons to buy the Lenovo ThinkPad X1 Carbon Gen 12 21KC005SIX:

Moderately better single-core performance, around +20% (Intel Core Ultra 7 155U)
Hugely better multithreading performance, around +62% (Intel Core Ultra 7 155U)
8 more cores (Intel Core Ultra 7 155U)
16 GB more RAM
More Capacity (SSD +1488 GB available)
Lighter weight (-0.04 Kg)
Newer Wi-Fi protocol
+2 Ports Thunderbolt 4