Sapphire Radeon R9 280X 3 GB GDDR5 DL-DVI-I/SL-DVI-D/HDMI/Dual Mini DP Tri-X OC Version PCI-Express Graphics Card 11221-22-20G Chipset: AMD Radeon R9 280X Engine Clock: 1020 MHz Video Memory: 3GB GDDR5 Stream Processors: 2048 Max. Resolution: 4096 x 2160, Support 5x Display Monitors 1 x Single-Link DVI-D 1 x Dual-Link DVI-I 2 x Mini-Display Port 1 x HDMI (with 3D)