AMD A8 X4 6600K Processor (Quad Core, 4M Cache, 4.2 G Hz) MS Windows ® 8.1 or Windows ® 7 HP MSI A78M-E35 FM2+ Mainboard AMD RADEON HD 8570D GPU 8GB DDR3 1600 M Hz Memory 1TB SATA III 7200rpm HDD 24x DVD Writer (read/write CD & DVD) Stylish Micro-ATX Case