Gigabyte R9 280X GDDR5-3GB DVI-I/HDMI/2xMini DP OC Graphics Card (GV-R928XOC-3GD REV2) Gigabyte Ultra Durable VGA Components - 2 oz Copper PCB - Japanese Solid Capacitor - Tier 1 Samsung/Hynix Memory - Ferrite Core / Metal Chokes - Ultra Cooling Low RDS(on) MOSFET Design WINDFORCE 3X 2 Slot 450W Fan Sink With Triangle Cool Technology Core Clock: 1000 MHz (Base) 1100 MHz (Boost) - Memory Clock: 6000 MHz Features DVI-I / HDMI / 2 mini DisplayPort Recommended Minimum System PSU 600W Supports AMD Crossfire / HD3D / Eyefinity / Catalyst / GCN Architechture