Every single benchmark has a unique operating system that does best. Overall, the two most solid performers are Server 2008 32 and Vista 32. Both of these are at the top for the 3D benchmarks, and fare okay in the 2D benchmarks as well. Deserving of flak in every day usage or not, in benchmarks, Vista 32 performs very well. Contrary to popular belief, XP and 7’s supposed “lightness” does not really translate in benchmarks. In fact, the more CPU-centric a benchmark is, the worse 7 tends to do. The only thing XP remains good for are 2D benchmarks, falling far behind the pack in all things 3D. Once again, this article only sets out to show which the fastest operating systems are by the numbers. The fastest choice might not necessarily be the best one for you.
surely this has much more to do with available drivers for those OSs rather than the OSs themselves?
i would imagine a driver on XP and a driver on W7 to have alot of differences that would effect performance much more than simply what the OS is doing?
I guess thats irrelevent as far as synthetics go, but its still the background processes and other OS bloat that would make the difference in real world tasks?