HP TouchSmart 520-1170a Desktop PC. Processor clock speed: 2800 MHz, Processor model: Intel Core i7-2600S, L2 cache: 8 MB. Memory layout: (2 x 4 GB), Memory slots: 2x SO-DIMM. Compatible memory cards: 6-in-1 memory card reader. Discrete graphics adapter model: AMD Radeon HD 6550A (2 GB dedicated). Audio system: Stereo Sound