Sony VGN-Z31WN/B, VAIO. Processor frequency: 2.66 GHz, Processor family: Intel Core 2 Duo, Processor model: P9600. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM, Memory clock speed: 1066 MHz. Total storage capacity: 320 GB, Hard drive interface: Serial ATA, Hard drive speed: 5400 RPM. Display diagonal: 33.27 cm (13.1"), Display resolution: 1600 x 900 pixels, Display surface: Matt. Discrete graphics adapter model: NVIDIA GeForce 9300M GS, Discrete graphics adapter memory: 256 MB, Maximum graphics adapter memory: 1500 MB