HP Compaq Elite 8300 All-in-One PC (ENERGY STAR). Processor family: Intel, Processor model: Intel Core i3-3225 with Intel HD Graphics 4000 (3.30 GHz, 3 MB cache, 2 cores), Motherboard chipset: Intel Q77 Express. Maximum internal memory: 16 GB, Memory slots: 2x SO-DIMM, Memory clock speed: 1600 MHz. Discrete graphics adapter model: Integrated Intel HD Graphics. Optical drive type: Slim Tray-load SuperMulti DVD writer. Operating system provided: Windows 7 Professional 64