Hi i have a i5 4670k overclocked to 4.3Ghz with a voltage of 1.25V and the maximum temps has been 76C under full load (Aida64). my cooler is the cooler master 212 evo and i cant push the Cpu to 4.4Hgz or higher without going over 1.3V and im wondering will there be much difference in performance if i stay on 4.3Ghz or if i pushed it to 4.5ghz?