To overclock both cards we used MSI's Afterburner software, which is based on RivaTuner. It is one of the more reliable and consistent ways of analysing potential overclocking capabilities.
The MSI R9 Gaming could be pushed to 1,151 mhz, translating to a 18.4% core clock increase. The PNY GTX760 XLR8 hit 1,116mhz, translating to a 13.9% core clock increase.
Even with the maximum overclock possible, the PNY GTX760 XLR8 couldn't catch the MSI R9 Gaming at ‘out of the box' clock speeds. This goes to show that even the fastest GTX760 solutions on the market will struggle to compete. We can say that even the fastest GTX760's such as the 1,110mhz KFA2 GTX760 HOF, priced at £215.99 would be slower than the R9 280 Gaming.
We reanalysed several games such as Watchdogs and Tomb Raider, and the frame rates on the PNY GTX760 XLR8 would only increase by 2-4 at 1600p – still falling short of the MSI R9 280 Gaming at the ‘out of the box' speeds.