For overclocking our NVIDIA cards we will be using EVGA's Precision too (ver 4.0) as this gives us all of the options we require.



Above is a screenshot of GPU-Z showing the reference speeds and reference boost clocks. As you can see, the card comes with a healthy factory overclock with the core running at 1137MHz resulting in a boost speed of 1189MHz. Strangely, GIGABYTE opted not to give the memory any overclock which we found odd given that we know the memory can run much faster than reference speeds.



Above is a screenshot of the actual overclock we achieved via Precision. With both power and temperature target sliders maxxed we hit a wall at around +76MHz on the core so we reduced this by 5MHz to ensure rock solid stability. It would bench at around the +100MHz point but sadly this overclock was far from stable. Still, breaking the 1.3GHz speed was very satisfying indeed.

As expected the memory overclocked freely and allowed a mammoth 400MHz boost.



After settling on our stable clockspeed which was verified by multiple runs of Unigine Heaven and 3DMark along with various gaming sessions we benchmarked the overclock again and compared it to stock results with Unigine Heaven 4.0 to evaluate the benefits of overclocking the GPU.