HP ProDesk 490G2 MT (J4B05EA) Intel Core i7-4790 Intel HD Graphics 4600 (3.6 GHz, 8 MB cache, 4 cores) 8GB 1600 MHz DDR3 SDRAM (1 x 8 GB) 1TB 7200 RPM SATA-3.0 G b/s 2GB Dedicated Graphics (NVIDIA GeForce GT 630) DVDRW, Lightscribe, Media Card Reader HP USB Value Keyboard Windows 8.1 Professional 64 downgrade to Windows 7 Professional 64 2 Years Warranty.