Sony Vaio VGN-NS21M/P, VAIO. Processor clock speed: 2.16 GHz, Processor family: Intel Core 2 Duo, Processor model: T3400. Internal memory: 3 GB, Internal memory type: DDR2-SDRAM, Memory clock speed: 667 MHz. Total storage capacity: 250 GB, Hard drive interface: Serial ATA, Hard drive rotational speed: 5400 RPM. Display diagonal: 391.2 mm (15.4 "), Display resolution: 1280 x 800 pixels, Aspect ratio: 16:10. Discrete graphics adapter model: Intel GMA 4500M, Maximum graphics adapter memory: 1320 MB