HIS ATI Radeon HD4650 512 MB DDR2 VGA/DVI/HDMI PCI-Express Video Card H465FS512H CHIPSET FEATURES 320 stream processing units, 128-bit memory interface, 24x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering, PCI Express 2.0 support. Redefine HD Gaming The ATI Radeon HD 4600 Series graphics cards boast up to 3 times the performance of the previous generation1 of GPUs and deliver a cinematic gaming experience. Go Beyond HD Video Accelerate your PC with the ATI RadeonTM HD 4650 GPU and get the dedicated graphics memory you need to handle graphics-intensive activities like watching HD movies or editing videos . Microsoft DirectX 10.1 support ATI RadeonTM HD 4600 series GPUs offer full support for the new DirectX 10 and DirectX 10.1 API ATI CrossFireXTM Technology - "Take gaming to a new level with plug-n-play ease"