Sapphire Radeon Vapor-X HD 7970 GHZ OC 6GB DDR5 DL-DVI-I / SL-DVI-D / HDMI / Dual Mini DP PCI-Express Graphics 11197-05-40G 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