Graphics Engine ATI Radeon HD 7770 Interface PCI Express x16 3.0 Memory Type GDDR5 Memory Size(MB) 1024 Memory Interface 128 bits Core Clock Speed(MHz) 1020 Memory Clock Speed(MHz) 4500 Memory Bandwidth(GB/sec) N/A Texture Fill Rate(billion/sec) N/A DVI Output 1 D-SUB Output N/A HDMI-Output 1 Mini HDMI-Output N/A DisplayPort N/A Mini DisplayPort 2 TV-Output N/A VIVO(Video-in/out) N/A HDTV Support N/A HDCP Support Y HDMI Support Y Dual-link DVI Y Display Output (Max Resolution) 2560x1600 RAMDACs 400 DirectX Version Support 11 OpenGL Version Support 4.2 CrossFire Support Y SLI Support N/A 3-way SLI N/A HyperMemory Tech. N/A TurboCache tech. N/A Card Dimension(mm) 235 x 111 x 38mm