Gigabyte ATI Radeon HD5850 OC 1 GB DDR5 2DVI/HDMI/DisplayPort PCI-Express Video Card GV-585OC-1GD Ultra Durable VGA (UDV) - Gigabyte's UDV board employs high quality components including 2 oz Copper PCB, 1st tier memory, Japanese solid capacitors, ferrite core chokes and lower RDS (on) MOSFET, resulting in 5% - 10% lower GPU temperature, 10%~30% better overclocking capability and 10%~30% less power switching loss. ATI Eyefinity Technology - ATI Eyefinity advanced multiple-display technology launches a new era of panoramic computing, helping to boost productivity and multitasking with innovative graphics display capabilities supporting massive desktop workspaces, creating ultra-immersive computing environments with super-high resolution gaming and entertainment, and enabling easy configuration and supporting up to three independent display outputs simultaneously. ATI Stream Technology - ATI Stream technology is a set of advanced hardware and software technologies that enable AMD graphics processors (GPU), working in concert with the system's central processor (CPU), to accelerate many applications beyond just graphics. This enables better balanced platforms capable of running demanding computing tasks faster than ever. ATI CrossFireX - ATI CrossFireX is the ultimate multi-GPU performance gaming platform, enabling two or more discrete graphics processors to work together for boosted system performance and a breakthrough gaming experience. Specifications Interface - PCI Express 2.1 x16