Sapphire Radeon HD 6790 1 GB DDR5 DL-DVI-I/SL-DVI-D/HDMI/DP PCI-Express Graphics Card 100316L PCI-Express 2.0 x16 bus interface 256-bit DDR5 memory interface Microsoft DirectX 11 Support Microsoft Windows 7 Support ATI Eyefinity Technology PCI-Express 2.0 x16 bus interface 256-bit DDR5 memory interface Microsoft DirectX 11 Support Microsoft Windows 7 Support ATI Eyefinity Technology AMD HD3D Technology AMD Advanced Parallel Processing Technology 3rd Generation TeraScale Engine