Well the biggest brute that I have right now is Rise of Flight. On my E8400 it maxes out the CPU at 100% all the time, and from what I hear it takes up 75% of a quad core CPU, and I guess it was actually written to take advantadge of quad core CPUs. Aside from that this X-FI extreme gamer I got was one of the first releases, and it did not deliver as well as claimed at all. Alot of people and reviews boasted an additional 15 fps in games which I never saw, the drivers were buggy right out of the box, and when I went to Vista and Win7 it didn't play nice either. So I guess considering the driver support, the limited 60 or 90 day warranty that it came with (oh sure you could get more for an additional fee), and the technical greif that it gave me when upgrading my OS, I would be happy with something less as long as it sounded good, gave me less hassle, and had good support.