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Compare Lenovo ThinkPad T490 vs. Lenovo ThinkPad X1 Carbon (6th Generation)

This is a side-by-side comparison of the specs of the ThinkPad T490 vs. the ThinkPad X1 Carbon (6th Generation). Differences are highlighted in yellow.
Item ThinkPad T490 ThinkPad X1 Carbon (6th Generation)
Item image Item image
Screen size 14" [x] 14" [x]
Maximum RAM 48GB [x] 16GB [x]
CPU i5-8265U [x] / i7-8565U [x] / i7-8665U [x] / i5-10210U [x] / i7-10510U [x] / i7-10710U [x] i5-7300U [x] / i5-8250U [x] / i5-8350U [x] / i7-8550U [x] / i7-8650U [x]
Release year 2019 [x] 2018 [x]
Screen brightness 500nt [x] (WQHD IPS HDR option) / 220nt [x] (HD option) / 250nt [x] (FHD IPS option) / 300nt [x] (FHD IPS touch option) / 400nt [x] (FHD Low Power option) / 400nt [x] (FHD Privacy Guard option) 300nt [x] (300 nit matte option) / 500nt [x] (500 nit glossy option) / 300nt [x] (FHD IPS option)
Battery capacity 50Wh [x] 57Wh [x]
Weight 1.58kg [x] from 1.13kg [x]
Power interface USB-C [x] USB-C [x]
Graphics Intel HD Graphics 620 [x] / NVIDIA GeForce MX250 [x] Intel UHD Graphics 620 [x] / Intel HD Graphics 620 [x]
Resolution width 2560px [x] (WQHD IPS HDR option) / 1920px [x] (FHD IPS touch option) / 1920px [x] (FHD IPS option) / 1366px [x] (HD option) / 1920px [x] (FHD Low Power option) / 1920px [x] (FHD Privacy Guard option) 2560px [x] (300 nit matte option) / 2560px [x] (500 nit glossy option) / 1920px [x] (FHD IPS option)
Resolution height 1440px [x] (WQHD IPS HDR option) / 768px [x] (HD option) / 1080px [x] (FHD Low Power option) / 1080px [x] (FHD Privacy Guard option) / 1080px [x] (FHD IPS touch 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 Single SODIMM slot [x] Soldered [x]
Screen type IPS [x] (WQHD IPS HDR option) / IPS [x] (FHD IPS option) / TN [x] (HD option) / IPS [x] (FHD IPS touch option) / IPS [x] (FHD Low Power option) / IPS [x] (FHD Privacy Guard 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 M.2 [x] M.2 [x]
Key travel 1.7mm [x] 1.8mm [x]
PWM detected? Yes [x] (FHD IPS option) / No [x] (WQHD IPS HDR option) No [x]
Screen finish Matte [x] (HD option) / Matte [x] (FHD Privacy Guard option) / Matte [x] (FHD IPS option) / Matte [x] (FHD IPS touch option) / Glossy [x] (WQHD IPS HDR option) / Matte [x] (FHD Low Power option) Matte [x] (300 nit matte option) / Glossy [x] (500 nit glossy option) / Matte [x] (FHD IPS option)
PWM frequency 2451Hz [x] (FHD IPS option)
Contrast ratio 1000:1 [x] (FHD Privacy Guard option) / 400:1 [x] (HD option)
Width 32.9cm [x] 32.35cm [x]
Depth 22.7cm [x] 21.71cm [x]
RAM 8GB [x] / 16GB [x]
Height 1.79cm [x] 1.59cm [x]
Fingerprint reader? Optional [x] Yes [x]
Multitouch screen? Yes [x] (FHD IPS touch option) Optional [x] (FHD IPS option)
Backlit? Yes [x] Yes [x]
Trackpoint buttons Yes [x] Yes [x]
CPU architecture Whiskey Lake [x] Kaby Lake R [x]
Function row style Physical keys [x] Physical keys [x]
NFC? Optional [x] Optional [x]
ThinkLight? No [x] No [x]
Removable battery? No [x] No [x]
Supports Coreboot? No [x] No [x]
Card reader? MicroSD [x] MicroSD [x]
Keyboard style Chiclet (Island keys) [x] Chiclet (Island keys) [x]
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