Item | ThinkPad T490 | ThinkPad X1 Carbon (6th Generation) | |
---|---|---|---|
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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