Diamond 4890PE51G ATI Radeon HD 4890 GDDR5 1024MB PCIE Video Card Unified Video Decoder 2 (UVD) for Blu-ray and HD DVD Optimized for Windows Vista with comprehensive DirectX 10.1, 10.0 and DirectX 9 support Up to 24x Custom Filter Anti-Aliasing Two Dual Link DVI with full resolution HDCP support 256-bit GDDR5 memory interface