• Part Number AX7770 1GBD5-HE• Graphics Engine RADEON HD7770• Video Memory 1GB GDDR5• Engine Clock 1000MHz• Memory Clock 1125MHz x 4 (4.5 Gbps)• Memory Interface 128bit• DirectX® Support 11.1• Bus Standard PCIE 3.0• Standard Display Connecors DL-DVI-D/HDMI/VGA• Feature SupportOpenGL SupportCrossFireX™ Technology SupportATI Stream Technology Support• Display SupportVGA Output On BoardDVI Output Dual Link DVI-D x1HDMI On BoardHDCP Support Support• Maximum ResolutionVGA 2048x1536DVI 2560x1600HDMI 4096x2160• Power Specs + Board DimensionsBoard Dimensions 170mmX111.2mm x38mmMinimum System Power requirement (W) 450WExtention Power Connector One 6-Pin PCI Express Power connector