Based on the R480 core, the X850 series have similar features to its X800 predecessors. It uses a more refined manufacturing process but what matters is that for the X850 series, ATI's partners are finally able to produce the cards in sufficient quantities. The major manufacturers are coming out with their retail versions of the different members of the X850 series which consists of the RADEON X850 PRO, RADEON X850 XT and the RADEON X850 XT Platinum Edition..



Link: Hardwarezone