Quote Originally Posted by 'mikekim',index.php?page=Thread&postID=157721#post 157721
processor wise, go with the Q6600 2.4 G0, as you can overclock it to over 3Ghz on standard cooling..
This.

you will notice a difference of a few hundred MHz when multiboxing, running 5 instances of wow will tax pretty much every part of your system. My fps improved by 15+ after overclocking my Q9550 from 2.83 GHz stock to 3.4 GHz