PowerColor AMD Radeon HD 7950 3GB GDDR5 BOOST STATE DVI/HDMI/2Mini DisplayPort PCI-Express Video Card AX7950 3GBD5-2DHV4 Chipset: AMD Radeon HD 7950 Engine Clock: 850 MHz Video Memory: 3GB GDDR5 Bus: PCI-Express 3.0 x16 Connectors: DV-I, HDMI, 2x Mini DisplayPort Supports: Microsoft Windows 7/ Vista/ XP, AMD Technology, HDCP-High-bandwidth Digital Content Protection, Microsoft DirectX 11.1, Shader Model 5.0