I recently bought a sapphire hd 7770 ghz edition(non oc) and i cant get much overclocks out of it. All review sites are able to get better clocks from hd 7770, i even increased the voltages using gpu tweek as it was the only software that let me, still i am unable to get stable clocks which are significantly higher or more than 50 mhz.
Is this a prob with my card and should i get it replaced, or is it something else. Please help quick as its been only 3 days since purchase and i can hopefully easily get it replaced. Or is there something wrong with the way i am overclocking.