In fairness I just like to fiddle with stuff, this msi board is a dream for overclocking and I've not had to alter any voltages even to achieve 4.5! I've even had my 1333 ram overclocked to 1886 stable
In truth though I can't really say that I've seen a performance increase with all this fiddling but maybe that's because my 760 is the bottleneck.
I plan to buy a gigabyte gtx 970 itx card in the near future.