Gigabyte R9 380 G1 GAMING 4GB GDDR5 Dual-Link DVI-I DVI-D HDMI Display Port PCI-E Graphics Card GV-R938G1 GAMING-4GD Main Features Super overclocking up to 990 M Hz by GPU Gauntlet sorting technology WINDFORCE 2X cooling system & Fan Stop mode with Intuitive Fan Indicators Stylish Metal Back-Plate for better cooling & PCB reinforcement 6-Phase GPU power design (reference: 5) Ultra Durable graphics card components Chipset Radeon R9 380 Core Clock 990 MHz (standard: 970 MHz) Process Technology 28 nm Memory Clock 5700 MHz Memory Size 4GB Memory Bus 256-bit Memory Type GDDR5 Card Bus PCI-E 3.0 Direct X 12 Open GL 4.4 PCB Form ATX Digital max resolution 4096 X 2160 Analog max resolution 2048 x 1536 Multi-view 4 I/O Dual-link DVI-I*1/DVI-D*1/HDMI*1/ Display Port*1 Card size H=42 mm, L=234 mm, W=129 mm Power requirement 500W (with one 8-pin external power connector) GPU Gauntlet Sorting With GPU Gauntlet Sorting, the Gigabyte SOC graphics card guarantees the higher overclocking capability in terms of excellent power switching WINDFORCE 2X --- Dual 90mm Unique blade fan design The air flow is split through the triangle design at the fan edge, & is guided smoothly through the fan by the special 3D stripe curve design, effectively enhancing the air flow by 23% over traditional fans, whilst reducing air turbulence. WINDFORCE 2X --- Direct Heat Pipe Touch Three 6mm pure cooper heat pipes contact GPU directly by DHT (Direct Heat Pipe Touch) technology