Allow me to quote the most geeky of geeky website, Anandtech:
NVIDIA has the advantage on the highest end single card product, but we don't see this as a boon for anyone but people running 30" displays at this point. There really is just no reason to drop the cash on a GTX 295 unless you're looking at 2560x1600 gaming. For smaller displays, cheaper parts will work great. [...]
AMD's top of the line card is slightly cheaper than the GTX 295 and still outperforms it in some cases. Currently the Radeon HD 4870 X2 is a $450 card while the GeForce GTX 295 is a $500 part.
Look at the performance charts (and note that most of the tests are at the insane resolution of 2560x1600) before you plonk down $500 or so for a single component.
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