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Compare Lenovo ThinkPad T450s vs. Lenovo ThinkPad X1 Carbon (6th Generation)

This is a side-by-side comparison of the specs of the ThinkPad T450s vs. the ThinkPad X1 Carbon (6th Generation). Differences are highlighted in yellow.
Item ThinkPad T450s ThinkPad X1 Carbon (6th Generation)
Item image Item image
Screen size 14" [x] 14" [x]
Maximum RAM 12GB [x] 16GB [x]
CPU i7-5600U [x] / i5-5300U [x] / i5-5200U [x] i5-7300U [x] / i5-8250U [x] / i5-8350U [x] / i7-8550U [x] / i7-8650U [x]
Release year 2015 [x] 2018 [x]
Screen brightness 250nt [x] (HD+ 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 23Wh [x] / 72Wh [x] / 48Wh [x] 57Wh [x]
Weight 1.48kg [x] from 1.13kg [x]
Power interface Slim-tip (square plug) [x] USB-C [x]
Graphics NVIDIA GeForce 940M [x] / Intel HD Graphics 4400 [x] / Intel HD Graphics 5500 [x] Intel UHD Graphics 620 [x] / Intel HD Graphics 620 [x]
Resolution width 1600px [x] (HD+ 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 1080px [x] (FHD IPS option) / 900px [x] (HD+ option) 1440px [x] (500 nit glossy option) / 1440px [x] (300 nit matte option) / 1080px [x] (FHD IPS option)
RAM interface Single SODIMM slot [x] Soldered [x]
Screen type IPS [x] (FHD IPS option) / TN [x] (HD+ option) IPS [x] (FHD IPS option) / IPS [x] (500 nit glossy option) / IPS [x] (300 nit matte option)
Colour Black [x] Black [x] / Silver [x]
Storage format 2.5" 7mm SATA [x] / M.2 [x] M.2 [x]
Key travel 1.8mm [x]
PWM detected? No [x] (FHD IPS option) / Unknown [x] (HD+ option) No [x]
Screen finish Matte [x] Matte [x] (300 nit matte option) / Glossy [x] (500 nit glossy option) / Matte [x] (FHD IPS option)
Width 33.1cm [x] 32.35cm [x]
Depth 22.6cm [x] 21.71cm [x]
RAM 8GB [x] / 16GB [x]
Height 2.06cm [x] 1.59cm [x]
Trackpoint buttons Yes [x] Yes [x]
Backlit? Yes [x] Yes [x]
Fingerprint reader? Optional [x] Yes [x]
Removable battery? Yes [x] No [x]
Card reader? SD [x] MicroSD [x]
Function row style Physical keys [x] Physical keys [x]
Multitouch screen? Optional [x] Optional [x] (FHD IPS option)
NFC? No [x] Optional [x]
Supports Coreboot? No [x] No [x]
ThinkLight? No [x] No [x]
CPU architecture Broadwell [x] Kaby Lake R [x]
Keyboard style Chiclet (Island keys) [x] Chiclet (Island keys) [x]
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