Item | ThinkPad X1 Carbon (3rd Generation) | ThinkPad X1 Carbon (4th Generation) | |
---|---|---|---|
Screen size | 14" [x] | 14" [x] | |
Maximum RAM | 16GB [x] | 16GB [x] | |
CPU | i5-5200M [x] / i5-5300M [x] / i7-5500U [x] / i7-5600U [x] | i7-6500U [x] / i5-6300U [x] / i5-6200U [x] / i7-6600U [x] | |
Release year | 2015 [x] | 2016 [x] | |
Screen brightness | 270nt [x] (WQHD IPS touch option) / 300nt [x] (WQHD IPS option) / 300nt [x] (FHD IPS option) | 300nt [x] (WQHD IPS option) / 300nt [x] (FHD IPS option) | |
Battery capacity | 50Wh [x] | 52Wh [x] | |
Weight | 1.39kg [x] | 1.17kg [x] | |
Power interface | Slim-tip (square plug) [x] | Slim-tip (square plug) [x] | |
Graphics | Intel HD Graphics 5500 [x] | Intel HD Graphics 520 [x] | |
Resolution width | 2560px [x] (WQHD IPS touch option) / 2560px [x] (WQHD IPS option) / 1920px [x] (FHD IPS option) | 2560px [x] (WQHD IPS option) / 1920px [x] (FHD IPS option) | |
Resolution height | 1440px [x] (WQHD IPS touch option) / 1440px [x] (WQHD IPS option) / 1080px [x] (FHD IPS option) | 1440px [x] (WQHD IPS option) / 1080px [x] (FHD IPS option) | |
RAM interface | Soldered [x] | Soldered [x] | |
Screen type | IPS [x] (FHD IPS option) / IPS [x] (WQHD IPS touch option) | IPS [x] (FHD IPS option) | |
Colour | Black [x] | Black [x] | |
Storage format | M.2 [x] | M.2 [x] | |
PWM detected? | Yes [x] (WQHD IPS option) | ||
Screen finish | Matte [x] (WQHD IPS option) / Matte [x] (FHD IPS option) | Matte [x] (FHD IPS option) / Matte [x] (WQHD IPS option) | |
Width | 33.1cm [x] | 33.3cm [x] | |
Height | 1.77cm [x] | 22.9cm [x] | |
Depth | 22.6cm [x] | 1.65cm [x] | |
RAM | 4GB [x] / 8GB [x] / 16GB [x] | 4GB [x] / 8GB [x] / 16GB [x] | |
Backlit? | Yes [x] | Yes [x] | |
Fingerprint reader? | Yes [x] | Yes [x] | |
Multitouch screen? | Yes [x] (WQHD IPS touch option) | No [x] | |
Trackpoint buttons | Yes [x] | Yes [x] | |
CPU architecture | Broadwell [x] | Skylake [x] | |
Function row style | Physical keys [x] | Physical keys [x] | |
Supports Coreboot? | No [x] | No [x] | |
Removable battery? | No [x] | No [x] | |
Card reader? | No [x] | MicroSD [x] | |
NFC? | No [x] | No [x] | |
Keyboard style | Chiclet (Island keys) [x] | Chiclet (Island keys) [x] | |
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