Sony VAIO VGN-Z41MD/B, VAIO. Processor clock speed: 2.53 GHz, Processor family: Intel Core 2 Duo, Processor model: P8700. 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 rotational speed: 5400 RPM. Display diagonal: 332.7 mm (13.1 "), Display resolution: 1366 x 768 pixels, Aspect ratio: 16:9. Discrete graphics adapter model: NVIDIA GeForce 9300M GS, Discrete graphics adapter memory: 128 MB, Maximum graphics adapter memory: 1370 MB