well i havent had this setup long but the difference is massive, this set up is so quiet and the cpu temps before on Scythe Infinity heatsink @ 1.5 were very high around 44c idle and 75+ on load using tat @3400mhz. now i have the voltage at 1.58 (real) temps are 35c-38c ldle 53-56 full load @3600mhz (need a lot of volt for this chip).
over all very happy with the results, im just hopeing the ek block does not restrict water flow to much or knock my cpu temps up.