DESC: GIGABYTE Ultra Durable VGA Series 1. Powered by AMD Radeon HD 6770 GPU2. Integrated with the first 1GB GDDR5 memory and 128-bit memory interface3. Features Dual-link DVI-I / HDMI / Displayport4. GIGABYTE 100mm Fansink5. Support AMD Eyefinity and CrossFireX and AvivoHD6. System power supply requirement: 450W (one 75W 6-pin PCI Express connector recommended) Ultra Durable VGA Features and Benefits GPU Temperature 5%~10% down: Ultra Durable VGA board provides dramatic cooling effect on lowering both GPU and memory temperature by doubling the copper inner layer of PCB. GIGABYTE Ultra Durable VGA can lower GPU temperature by 5% to 10%. Overclocking Capability 10%~30% Up:Ultra Durable VGA board reduces voltage ripples in normal and transient state; thus effectively lowers noises and ensures higher overclocking capability. GIGABYTE Ultra Durable VGA graphic accelerators improve overclocking capability by 10% to 30%.