HP Pavilion A4310F Desktop PC (Black) (Discontinued by Manufacturer) AMD Athlon II X2 250u Dual-Core Processor (3.0 GHz, 2MB L2 Cache, 4000 MHz System Bus) 4GB PC3-10600 DDR3 SDRAM memory (2x2048 for ultimate performance) 640GB Serial ATA hard drive, SuperMulti DVD Burner with LightScribe Technology Genuine Windows 7 Home Premium 64-bit NVIDIA GeForce 6150 SE Graphics with 256MB integrated shared graphics memory. Up to 1919MB Total Available Graphics Memory as allocated by Windows 7