Sapphire Radeon VAPOR-X R9 290 4GB GDDR5 DUAL DVI-D/HDMI/DP TRI-X OC Version PCI-Express Graphics Card 11227-04-40G Output:2 x Dual-Link DVI-D, 1 x Display Port 1.2, 1 x HDMI (with 3D) GPU: 1030 Mhz Core Clock, 28 nm Chip,2560 x Stream Processors Video Memory: 4096 MB Size, 512-bit GDDR5, 5600 MHz Effective