Originally Posted by Uziel
I am sorry then. Since you also seem to be vague, can you perhaps share the information specific to your personal experience?
I've tested it on a Raedon 9500, Nvidia 6800 , and an Nvidia FX5200. (2GB of ram, 3.4Ghz processor, clean install each time..Vista Ultimate)
All systems had similar performance drops and based on the information from Nvidia, I am inclined to believe what I've experienced and what I've read coming from the horse's mouth versus a very vague statement in the order of "But it works on mine!"
I simply wanted the thread starter to be aware that if he has an Nvidia card (which according to market data, 66% of computer users do!), then there is a good chance that he could experience performance loss.
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Not all of those cards are supported by Vista. The minimum supported cards are R300 or NV40 series adapters. That means that NV30 FX card isn't supported by Microsoft or by Nvidia for Vista use. Yes, you can plug it in, and Vista will show a picture, which is something it will do for many adapters that aren't technically "supported". But you'll never get anything more than the Vista in-box video driver, and that's where your performance will suffer.
Edit: Let me put it more into context. Of course you're going to see poor performance when you're listing basically the most bottom-of-the-barrel cards here. You're going to see poor performance when using the minimum spec of anything.
I used to work in the WHQL section at MS, and I can tell you that Moogle is absolutely right. You need to do the research, find out if your hardware is supported. You absolutely can see worse performance in Vista than in XP under certain hardware restrictions. The OS is written differently than XP, give it time; it'll catch up, especially with newer hardware.