Product Detail AMD Athlon II 630 Quad-Core Processor (2.8 GHz, 2 MB L2 Cache, 4000 System Bus) 6GB PC3-10600 DDR3 SDRAM memory (3x2048MB) (expandable to 16GB) 1 Terabyte (TB) Serial ATA hard drive, SuperMulti DVD Burner with LightScribe Technology Genuine Windows 7 Home Premium 64-bit NVIDIA GeForce 9100 Graphics with 256MB graphics memory. Up to 2943MB Total Available Graphics Memory as allocated by Windows 7 . The "HP Pavilion P6310F Desktop PC Black" is best product for you. We recommended HP Pavilion P6310F Desktop PC Black