Lenovo W520, ThinkPad. Processor clock speed: 2.3 GHz, Processor family: Intel Core i7, Processor model: i7-2820QM. Internal memory: 4 GB, Memory clock speed: 1333 MHz, Memory slots: 4x SO-DIMM. Total storage capacity: 500 GB, Hard drive capacity: 500 GB, Hard drive interface: Serial ATA. Display diagonal: 396.2 mm (15.6 "), Display resolution: 1920 x 1080 pixels, Aspect ratio: 16:9. Discrete graphics adapter model: NVIDIA Quadro 2000M, Maximum graphics adapter memory: 2000 MB, Maximum resolution: 1920 x 1080 pixels