Gigabyte Gaming Graphics Card GV-R938XG1 GAMING-4GD Powered by AMD Radeon R9 380X GPU Integrated with industry's best 4GB GDDR5 memory 256-bit memory interface OC Edition - Core Clock: 980MHz (Standard: 970MHz) Features Dual-link DVI-I / Dual-link DVI-D / HDMI / DisplayPort System power supply requirement: 500W (with one 8-pin external power connector) G1 Gaming WINDFORCE 2X Cooling system with Triangle Cool technology Ultra Durable VGA Series