To stress the graphics card while monitoring each GPU's core temperature and system power consumption, Unigine Heaven was run at 1280 x 1024. The EVGA GeForce GTX 550 Ti had an average core temperature of 68°C and a peak of 71°C, which was much higher than the similarly-performing Radeon HD 6770 where its temperature was just 44°C with a peak of 47°C. The 68°C average temperature on the EVGA graphics card was also much higher than the GeForce GTX 460 at 46°C. The EVGA GeForce GTX 550 Ti had the highest operating temperature of all the graphics cards benchmarked.
When running Unigine Heaven, the GeForce GTX 550 Ti had an average power consumption of 196 Watts with a peak of 211 Watts, which was much higher than the AMD Radeon HD 6770 graphics card at 155 Watts and a 172 Watt peak. The GeForce GTX 460 was also consuming only 191 Watts with 203 Watts at its peak while outperforming the GeForce GTX 550 Ti in Unigine. The least power hungry GPU was, of course, the GeForce GT 520 where the overall power consumption was just 112 Watts.