Test Results
Below the graph of the temperatures with standard cooler at default and ambient temperature of 29° Celsius.
As can be seen from the graph we were able, without overvolt, to reach 900 MHz with only the Furmark test but not with Unigine Sanctuary, so we stopped at 800 MHz because of the temperatures reached. Raising the speed of the fan to 100% we have seen that the temperature drops by 10° C, but the noise becomes unbearable, so it is not feasible for a continuous game session. By measuring the overall noise from the fan of our VGA and the 3 Nanoxia fan of the radiator, we found about 70 decibels against a total of approximately 60 decibels of the fan of our VGA with a rotation speed of about 70%.
Given these results, we show now the gain in terms of temperature differences, dramatically lower in our VGA cooled by the Alphacool NexXxos NVXP GTX580/70 water block.
As you can see we have reached even with Unigine Sanctuary a stable 950 MHz frequency, of course with a slight overvolt. The temperatures speak for themselves and the comments are given in the next section.