We evaluate what you require in a graphics card. On the one hand, XFX's GeForce 6800 Ultra 512MB makes a compelling case as a cheap, relatively-speaking, workstation-class card, capable of running exotic displays. On the other though, and this affects the majority of potential buyers who tend to be gamers, you'd be better off opting for a single GeForce 7800 GTX or a couple of GeForce 6800 GTs in SLI formation. £470, then, will be either a snip or prohibitively expensive, depending upon your intended need.