Gigabyte R9 290X GDDR5-4GB 2xDVI/HDMI/DP OC Graphics Card GV-R929XOC-4GD WINDFORCE 3X 2 slot 450W cooling system Smart fan control that can be switched between silent and performance modes Core Clock: 1040 MHz - Memory Clock: 5000 MHz Recommended Minimum System PSU 600W Supports AMD Crossfire / HD3D / Eyefinity / Catalyst / GCN Architecture Features DVI-D2 / HDMI / Display Port