ATI FirePro V7900 2GB DDR5 4x DisplayPort PCI-Express Video Card GPU: ATI FirePro V7900 Memory: 2GB DDR5 Memory Interface: 256-bit Bus: PCI-Express 2.1 x 16 Brandwidth: 160.0 GB/s Stream Processors: 1280 Support Microsoft Windows XP/Vista/7/Linux (32-bit or 64-bit)