Well I don't know too much about it yet, but it's going to depend more on your computer than anything else, I think. Vista is an even bigger resource hog than XP, so if you are trying to upgrade your old machine to Vista...games will probably play worse because Vista is going to be taking up more of the resources that were allocated to games when you had XP on your computer. If you buy a new machine that has better specs that comes with Vista pre-installed, you might get the same performance, or even better if they've made improvements. But no matter what any articles say, we probably really won't know until some of us get Vista and try it.....and trust me, that won't be me anytime soon!!