HP Compaq Elite 8200 SFF Desktop Quad Core i5-2400 3.10 GHz 4 GB DDR3 RAM 250 GB HD DVD-RW Windows 10 Professional 64-Bit Intel Core i5-2400 3.10 GHz quad-core processor 6 MB Intel Smart Cache, 3.4 GHz Max Turbo Frequency Integrated Intel HD Graphics 2000 DDR3 RAM Microsoft Windows 10 Professional 64-Bit