Lol, I run an old Prescott P4 [3.2GHz] and 2008 is a hell of a lot faster than Vista with EVERYTHING! I also find that games are just as compatible as Vista. My older favorites such as Age of Wonders Shadow Magic, GTA2 [with the DMUSIC.DLL fix] and my current favorite game – SPORE – work 100% for me. They are all faster than the evaluation copy of Vista SP1 I have/had!
This site/forum rocks.