Sony VGN-NS11Z/S, VAIO. Processor frequency: 2 GHz, Processor family: Intel Core 2 Duo, Processor model: T5800. Internal memory: 4 GB, Internal memory type: DDR2-SDRAM, Memory clock speed: 800 MHz. Total storage capacity: 320 GB, Hard drive interface: Serial ATA, Hard drive speed: 5400 RPM. Display diagonal: 39.12 cm (15.4"), Display resolution: 1280 x 800 pixels. Discrete graphics adapter model: AMD Mobility Radeon HD 3430, Maximum graphics adapter memory: 1510 MB