for what its worth i have an AMD Phenom x4 but its 3.4 g speed and so far no problems i have 8 gb of RAM and a Creative Soundblaster ZS Audigy 2
i'm running a uphoria umc204hd interface for recording and monitoring using asio but mix on the Soundblaster with WAS drivers.
so far my system seems to handle most things but does occasionallly crash when i'm loading vsts using jbridge in the mixer