Lenovo ThinkPad X1 Carbon 3rd Generation: Intel Core i5-5200U processor, 14" Full HD Screen, 4GB RAM, 128GB SSD, Windows 7 Pro 64-bit preinstalled (though Windows 8 Pro Downgrade Rights) 5th Generation Intel Core i5-5200U processor (2.2 GHz base, 2.7 GHz Max Turbo, 3MB Cache) 14 inch, 1920x1080 FHD resolution non-touch screen. 300 nits, 400:1 contrast ratio 128GB SSD, 4GB RAM, Wifi, Bluetooth, 720p HD Webcam with gesture input Intel HD 5500 graphics in processor, 8-cell 50Whr battery Windows 7 Pro 64-bit preinstalled through Windows 8.1 Pro Downgrade Rights