Loaded with the latest features, the ATI Radeon¿HD 4600 Series graphics cards deliver a level of gaming performance previously only found in high-end graphics cards. Redefine the way you play HD games and enjoy unprecedented levels of graphics realism powered by 320 stream processing units, up to 1GB of memory and support for Microsoft DirectX®10.1 games. Upgrade your graphics card and watch Blu-ray movies and play HD content with incredible visual fidelity1or take your experience to another level with new multimedia capabilities. Do it all with break-through energy efficiency that doesn¿t compromise performance.