292 million transistors on 40nm fabrication process TeraScale 2 Unified Processing Architecture 160 Stream Processing Units 8 Texture Units 16 Z/Stencil ROP Units 4 Color ROP Units PCI Express 2.1 x16 bus interface 64-bit DDR3 Microsoft DirectX 11 support Shader Model 5.0 DirectCompute 11 Programmable hardware tessellation unit Accelerated multi-threading HDR texture compression Order-independent transparency OpenGL 4.1 support1 model : PowerColor ATI HD6450 tag : Video - Graphic Cards