• Part Number AXR9 290 4GBD5-TDHE/OC• Graphics Engine RADEON R9 290• Video Memory 4GB GDDR5• Engine Clock 975MHz• Memory Clock 1250MHz x 4 (5.0 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 Support• OpenGL Support• CrossFireX™ Technology Support• ATI Stream Technology Support• ATI Eyefinity Technology Support • Display Support• VGA Output • DVI Output DL DVI-D/DL DVI-D• DisplayPort On Board• HDMI On Board• HDCP Support Support• Maximum Resolution• DVI 2560x1600• DisplayPort 4096x2160• HDMI 4096x2160• Power Specs + Board Dimensions• Board Dimensions 266.65mmx111.2mmx38mm• Minimum System Power requirement (W) 750W• Extention Power Connector One 6-Pin and One 8-Pin PCI Express Power connectors