Yeah, it always disappoints me that emulation developers have a pos invidia card in their workstation. For record and only for the record.... ever since about the radeon 7500/8000 the ati cards have been much more efficient (not faster, don't misunderstand me) about hardware assisted rendering than the geforce cards. The problem is it is literally a different animal coding for ati cards. So if the developer doesn't code speficially for it, the end result is MUCH slower than it should be.
If developers were to put an equal amount of time coding for ati as they do for invidia the ati cards would do as well or better than their invidia counter parts, regardless of the fact that ati cards (except fot the 9600, 9700 and 9800) are cheaper and slower. It's similar to the way an athlon can out perform the newest intel chipset, regardless of the fact that it's 200 bucks cheaper and a lower clock speed.
Ok I'm done ranting.... long story short... support ati.... even if it's a lame pos computer for your grandma, but an ati card in it over a generic invidia. The more we support the cards, the better support they will get in the gaming industry.