OK, so I first I decided get the 3570k for $170 at Microcenter but then I saw a 3770k for $230, which is way a better price than the original i5 3570k, is it worth $60 extra to get a 3770k over the 3570k or should I spend that $60 on something else? I mainly use this rig for gaming and some video rendering, and which one use more power?