Gigabyte R9 270X GDDR5-4GB 2xDVI/HDMI/DP OC Graphics Card (GV-R927XOC-4GD) 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 Core Clock: 1050 MHz (Base) 1100 MHz (Boost) - Memory Clock: 5600 MHz Features DVI-I / DVI-D / HDMI / Displayport Output Recommended Minimum System PSU 550W Supports AMD Crossfire / HD3D / Eyefinity / Catalyst / GCN Architechture