• Part Number AXR9 280X 3GBD5-DHE• Graphics Engine RADEON R9 280X• Video Memory 3GB GDDR5• Engine Clock 850MHz (up to 1000MHz with boost)• Memory Clock 1500MHz x4 (6.0 Gbps)• Memory Interface 384bit• DirectX® Support 11.2• Bus Standard PCIE 3.0• Standard Display Connecors DL-DVI-I/SL-DVI-D/HDMI/Display Port• Feature SupportOpenGL SupportCrossFireX™ Technology SupportATI Stream Technology SupportATI Eyefinity Technology Support• Display SupportVGA Output Yes, By DVI to VGA converterDVI Output DL-DVI-I/ SL-DVI-DDisplayPort On BoardHDMI On BoardHDCP Support Support• Maximum ResolutionVGA 2048x1536DVI 2560x1600DisplayPort 4096x2160HDMI 4096x2160• Power Specs + Board DimensionsBoard Dimensions 265mmx111.2mmx38mmMinimum System Power requirement (W) 500WExtention Power Connector One 6-Pin and One 8-Pin PCI Express Power connectors