i currently am cooling a gtx 590 classy hydro copper and an i7 2600k @ 4.5 Ghz. my case is CM Haf-X. the order in wich its cooled is rad/ res combo to GPU then CPU then rad back to res/pump. I am using an XSPC 360 mm rad on top with 3 120's pushing and 2 200's pulling. my GPU highest temps under full load is 47C and cpu highest under prime 95 58C. i dont know the size of rad i can fit in the front and i could fit single 140 in the back. could there be any significant difference in temp ie above a 5C difference.