On top of EVGA’s support and dedication to putting out unique card designs they are also known for a small piece of software they produce called Precision. Even if you don’t own an EVGA card but have an Nvidia card from another manufacture there is a good chance that you have put it to use as well. The latest variation precision X is specifically designed for Kepler based GPU’s. When getting ready to test out the GTX 660Ti’s overclocking I loaded both precision X and EVGA’s OC scanner. Between the two you can overclock and test your overclocks. While we were at it I went ahead and loaded up the GTX 660Ti theme, I was impressed right away with the theme simply because it includes orange.
After getting reacquainted with the software, I jumped right in and turned up our power target as far as I could go and started to bump up the GPU Clock offset. Remember GPU Boost is a little tricky with overclocking; you have to actually put the card under load to see where you end up. I used the second benchmark in 3dmark 11 under extreme settings as I have found this benchmark to push the card as high as possible. Our stock boost was capped at 1059MHz; I jumped right away up to 1230 without any issues at all. When I tried to get 1300, I killed the Nvidia driver and 3DMark. After getting everything opened back up I started pumping more voltage into the GTX 660Ti to see what I could push it to. Oddly enough, even with voltage I wasn’t able to get past 1350 and be able to pass all of my tests. I was however able to push the card up to 1475 for very short periods before the card would pull back or crash. I get the feeling that there is a lot of power left for those who are willing to tweak and play with it. Of course my dreams of having it running at 1400+ for anything more than a short period of time were busted. Memory Clock testing was around the same, I was only able to get a small boost and even less when I attempted to run our CPU overclock at the same time.