Hi, well I'm new to the world of Macs and am on my way to getting a 15" PowerBook. I've used PC's all my life and was just wondering the reason why games run that much slower on Macs than on PC's. I mean even with games like Quake 3 using comparable graphics cards, benchmarks prove that it is slower on Macs. Why? The few reasons I could think of is: 1. Games are more optimized for the Intel architecture vs. G4/G5 2. It is an inherent "feature" of Mac OS X. I heard that in terms of single application use XP is "snappier"/more responsive then OS X because of the fundamental way in which they handle resources. I think that XP gives priority to the window in focus thats why its multitasking capabilities is lacking whereas OSX gives equal priority to every application thus multitasking is excellent. But games are predominantly single application so maybe thats why its not so fast on Macs. 3. Direct X vs. Open GL. Could it be that of all the things MS came up with, this could actually be a good thing? Well, these are the only few reasons I could think of. Maybe some of you more experienced Mac users could shed some light on why this is so. Now, please I don't want a XP vs. OSX debate because I already know the benefits of Mac OSX but I just want to know why.