Radeon 4870 Pcie 1GB MSI Radeon HD 4870 1 GB GDDR5 PCI Express Video Card General Features: ATI Radeon HD 4870 graphics processing unit (GPU) / 800 stream processing units / 750 MHz core clock 1 GB GDDR5 memory / 256-bit memory interface / 3600 MHz memory speed PCI Express 2.0 support / Microsoft DirectX 10.1 support w/Shader Model 4.1 / OpenGL 2.1 optimization and support Connectors: One (1) DVI-I / One (1) VGA / One (1) HDMI