EVGA 01G-P3-1180-AR GeForce GTX285 1024 MB DDR3 PCI-Express 2.0 Graphics Card GeForce GTX 285 with 648 MHz clock PCI Express 2.0 1024 MB 512-bit .7ns DDR3 memory 2484 MHz memory clock and 1476 MHz shader clock Open GL 3.0, Windows XP and Windows Vista support