• Part Number AXR9 290X 4GBD5-PPDHE• Graphics Engine RADEON R9 290X• Video Memory 4GB GDDR5• Engine Clock 1050MHz• Memory Clock 1350MHz x4 (5.4 Gbps)• Memory Interface 512bit• DirectX® Support 11.2• Bus Standard PCIE 3.0• Standard Display Connecors DL DVI-D/DL DVI-D/HDMI/DP• Feature SupportOpenGL SupportCrossFireX™ Technology SupportATI Stream Technology SupportATI Eyefinity Technology Support• Display SupportDVI Output DL DVI-D/DL DVI-DDisplayPort On BoardHDMI On BoardHDCP Support Support• Maximum ResolutionDVI 2560x1600DisplayPort 4096x2160HDMI 4096x2160• Power Specs + Board DimensionsBoard Dimensions 266.65mmx111.2mmx38mmMinimum System Power requirement (W) 750WExtention Power Connector One 6-Pin and One 8-Pin PCI Express Power connectors