Gigabyte HD7790 GDDR5-1GB 2xDVI/HDMI/DP OC Graphics Cards GV-R779OC-1GD Gigabyte Ultra Durable 2 Components - Ultra Cooling Low RDS(on) MOSFET Design - Low Power Loss Ferrite Core Chokes - Longer Life All-Solid Capacitor Design Gigabyte Custom-Designed 100mm Fansink for maximum cooling efficiency and whisper silent operation. Core Clock: 1075MHz - Memory Clock: 6000MHz Features DVI-I / DVI-D / HDMI / Displayport outputs with HDCP protection Minimum Recommended System power supply 450W