Acer Extensa E470, 2.93 GHz, Intel® Core™2 Duo, 4 GB, 320 GB, DVD-RW, Windows 7 Professional Acer Extensa E470. Processor frequency: 2.93 GHz, Processor family: Intel® Core™2 Duo, Processor model: E7500. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM. Total storage capacity: 320 GB, Optical drive type: DVD-RW. Discrete graphics card model: Intel® GMA X4500. Operating system installed: Windows 7 Professional. Product type: PC. Weight: 24.3 lbs (11 kg). Product color: Black