Using a Kepler core at its heart, the GTX 650Ti Boost edition overclocks much like any of the enthusiast cards such as the GTX 680 and GTX Titan. For this exercise I will be using EVGA Precision to overclock the GTX 650Ti Boost. Knowing where these cores normally start to show signs of instability, I moved the sliders up to a point where I was running a core boost clock of almost 1200MHz as my starting point. The maximum fan speed I could set was 74%, yet this kept the core at a modest 56 °C under load. A higher fan speed may have dropped the load temperatures but most certainly increased the noise signature from the card. The voltage used in Precision was set to 1150mv after failing to complete the stability testing phase of the overclock testing. Final settings were 1215MHz under boost on the core with a 1603MHz clock on the GDDR5 memory.”



Link: OCC