THG pits WinXP against Vista in a bevy of tests, including everything from games to office apps to rendering. Vista takes an absolute beating in the SpecviewPerf benchies, so if you're doing 3D work, stick with WinXP for the time being...

"We already know that Windows Vista offers tremendous improvements in usability, but isn't that good a choice for gaming - at least not yet. How is its application performance compared to Windows XP?"