Sapphire Radeon Toxic HD 7970 6GB DDR5 DL-DVI-I/SL-DVI-D/HDMI/Dual Mini DP PCI-Express Graphics Card 11197-04-40G 1050/1100(Boost) MHz Core Clock 6000 MHz Effective Memory Clock 1 x Dual-Link DVI 1 x Single-Link DVI-D 1 x HDMI 2 x Mini-DisplayPort DisplayPort 1.2