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Compare Lenovo ThinkPad X1 Carbon (4th Generation) vs. Lenovo ThinkPad X1 Carbon (6th Generation)

This is a side-by-side comparison of the specs of the ThinkPad X1 Carbon (4th Generation) vs. the ThinkPad X1 Carbon (6th Generation). Differences are highlighted in yellow.
Item ThinkPad X1 Carbon (4th Generation) ThinkPad X1 Carbon (6th Generation)
Item image Item image
Screen size 14" [x] 14" [x]
Maximum RAM 16GB [x] 16GB [x]
CPU i7-6500U [x] / i5-6300U [x] / i5-6200U [x] / i7-6600U [x] i5-7300U [x] / i5-8250U [x] / i5-8350U [x] / i7-8550U [x] / i7-8650U [x]
Release year 2016 [x] 2018 [x]
Screen brightness 300nt [x] (WQHD IPS option) / 300nt [x] (FHD IPS option) 300nt [x] (300 nit matte option) / 500nt [x] (500 nit glossy option) / 300nt [x] (FHD IPS option)
Battery capacity 52Wh [x] 57Wh [x]
Weight 1.17kg [x] from 1.13kg [x]
Power interface Slim-tip (square plug) [x] USB-C [x]
Graphics Intel HD Graphics 520 [x] Intel UHD Graphics 620 [x] / Intel HD Graphics 620 [x]
Resolution width 2560px [x] (WQHD IPS option) / 1920px [x] (FHD IPS option) 2560px [x] (300 nit matte option) / 2560px [x] (500 nit glossy option) / 1920px [x] (FHD IPS option)
Resolution height 1440px [x] (WQHD IPS option) / 1080px [x] (FHD IPS option) 1440px [x] (500 nit glossy option) / 1440px [x] (300 nit matte option) / 1080px [x] (FHD IPS option)
RAM interface Soldered [x] Soldered [x]
Colour Black [x] Black [x] / Silver [x]
Screen type IPS [x] (FHD IPS option) IPS [x] (FHD IPS option) / IPS [x] (500 nit glossy option) / IPS [x] (300 nit matte option)
Storage format M.2 [x] M.2 [x]
Key travel 1.8mm [x]
PWM detected? Yes [x] (WQHD IPS option) No [x]
Screen finish Matte [x] (FHD IPS option) / Matte [x] (WQHD IPS option) Matte [x] (300 nit matte option) / Glossy [x] (500 nit glossy option) / Matte [x] (FHD IPS option)
Width 33.3cm [x] 32.35cm [x]
Height 22.9cm [x] 1.59cm [x]
Depth 1.65cm [x] 21.71cm [x]
RAM 4GB [x] / 8GB [x] / 16GB [x] 8GB [x] / 16GB [x]
Backlit? Yes [x] Yes [x]
Fingerprint reader? Yes [x] Yes [x]
Trackpoint buttons Yes [x] Yes [x]
CPU architecture Skylake [x] Kaby Lake R [x]
Function row style Physical keys [x] Physical keys [x]
Multitouch screen? No [x] Optional [x] (FHD IPS option)
NFC? No [x] Optional [x]
ThinkLight? No [x]
Supports Coreboot? No [x] No [x]
Removable battery? No [x] No [x]
Card reader? MicroSD [x] MicroSD [x]
Keyboard style Chiclet (Island keys) [x] Chiclet (Island keys) [x]
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