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Compare Lenovo ThinkPad T420s vs. Lenovo ThinkPad X1 Carbon (7th Generation)

This is a side-by-side comparison of the specs of the ThinkPad T420s vs. the ThinkPad X1 Carbon (7th Generation). Differences are highlighted in yellow.
Item ThinkPad T420s ThinkPad X1 Carbon (7th Generation)
Item image Item image
Screen size 14" [x] 14" [x]
Maximum RAM 16GB [x] 16GB [x]
CPU i7-2620M [x] / i5-2450M [x] / i5-2410M [x] / i3-2310M [x] / i7-2640M [x] / i5-2540M [x] / i5-2520M [x] i5-8265U [x] / i5-8365U [x] / i7-8565U [x] / i7-8665U [x] / i5-10210U [x] / i7-10510U [x] / i7-10710U [x]
Release year 2011 [x] 2019 [x]
Screen brightness 250nt [x] (HD+ option) / 200nt [x] (HD option) 400nt [x] (FHD Privacy Guard option) / 300nt [x] (WQHD IPS option) / 500nt [x] (4K IPS option) / 400nt [x] (FHD Low Power option) / 300nt [x] (FHD IPS touch option)
Battery capacity 43.2Wh [x] 51Wh [x]
Weight 1.67kg [x] 1.09kg [x]
Power interface Coax barrel [x] USB-C [x]
Graphics Intel HD Graphics 3000 [x] Intel UHD Graphics 620 [x]
Resolution width 1366px [x] (HD option) / 1600px [x] (HD+ option) 2560px [x] (WQHD IPS option) / 3840px [x] (4K IPS option) / 1920px [x] (FHD Privacy Guard option) / 1080px [x] (FHD Low Power option) / 1920px [x] (FHD IPS touch option)
Resolution height 768px [x] (HD option) / 900px [x] (HD+ option) 1440px [x] (WQHD IPS option) / 2160px [x] (4K IPS option) / 1080px [x] (FHD Privacy Guard option) / 1920px [x] (FHD Low Power option) / 1080px [x] (FHD IPS touch option)
RAM interface Dual SODIMM slot [x] Soldered [x]
Screen type TN [x] IPS [x]
Colour Black [x] Black [x]
Storage format 2.5" 7mm SATA [x] M.2 [x]
Key travel 2.5mm [x]
PWM detected? Unknown [x] No [x]
Screen finish Matte [x] Matte [x] (FHD IPS touch option) / Matte [x] (FHD Low Power option) / Matte [x] (FHD Privacy Guard option) / Matte [x] (WQHD IPS option) / Glossy [x] (4K IPS option)
Width 34.3cm [x] 32.3cm [x]
Depth 23cm [x] 21.7cm [x]
RAM 16GB [x] / 8GB [x]
Height 2.6cm [x] 1.49cm [x]
Aspect ratio 16:9 [x]
Removable battery? Yes [x] No [x]
ThinkLight? Yes [x]
Fingerprint reader? Optional [x] Yes [x]
Trackpoint buttons Yes [x] Yes [x]
Supports Coreboot? Yes [x] No [x]
Backlit? No [x] Yes [x]
Card reader? SD [x] No [x]
CPU architecture Sandy Bridge [x] Cannon Lake [x]
Function row style Physical keys [x] Physical keys [x]
NFC? No [x] Optional [x]
Keyboard style 7 row [x] Chiclet (Island keys) [x]
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