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Diamond Radeon HD 5450 Graphics Card - This silent HD video card from Diamond features an aluminum heatsink and no fan, perfect for home theater systems. The HDMI output connects to your display to bring you HD media streaming, and 1GB of DDR3 video memory lets you handle heavy graphics loads with aplomb. Radeon HD5450 PCIe 1GB DDR3. ATI AMD RADEON HD 5450 PCI EXPRESS GDDR3 1GB VIDEO GRAPHICS CARD. 292 million 40nm transistors. TeraScale 2 Unified Processing Architecture. 8 Texture Units. 16 Z/Stencil ROP Units. 4 Color ROP Units. GDDR3 memory interface. PCI Express 2.1 x16 bus interface. DirectX 11 support. Shader Model 5.0. DirectCompute 11. Programmable hardware tessellation unit. Accelerated multithreading. HDR texture compression. Orderindependent transparency. OpenGL 3.2 support. Image quality enhancement technology. Up to 12x multisample and supersample antialiasing modes. Adaptive antialiasing. 16x angle independent anisotropic texture filtering. 128bit floating point HDR rendering. ATI Stream acceleration Technology. OpenCL 1.0 compliant. DirectCompute 11. Accelerated video encoding, transcoding, and up scaling.