Gigabyte GT 740 GDDR5-1GB 2 x DVI/D-SUB/HDMI OC Graphics Cards GV-N740D5OC-1GI Gigabyte Custom-Designed 100mm Fan sink for maximum cooling efficiency and whisper silent operation Core Clock: 1071MHz/Memory Clock: 5000MHz Features 2xDVI-D/D-SUB/HDMI with HDCP protection Minimum Recommended System power supply 350W, 6-pin power connector required