Planet Half-Life checks out the difference in performance of Half Life 2 and Counter Strike: Source in Windows XP and Windows Vista. Here's a snip:
So you're getting ready to build or buy a new PC, or maybe you're just considering upgrading your rig, but for the first time in 5 years you've had a new question to ask yourself, "Should I upgrade my Windows OS?" The only way to really answer this question is to ask yourself, what do you do on your PC? The answer to this question can make or break the Windows Vista deal. However today we're going to look at one specific area of what I'm sure everyone in this article does, how well does Windows Vista handle Half-Life 2, or more specifically the Source Engine..