Since the various turbo technologies are becoming more and more advanced, sufficient cooling to keep clock speeds at a high level is becoming more relevant for the actual performance of the cards during gaming sessions. If a card were to start thermal throttling after a couple of minutes, the performance would naturally decrease as well. For this reason we're now also performing a throttling test, that will determine whether the performance of a card stays consistent, even after a long period of gaming.
The throttling test consists of our F1 2015 benchmark, looped seventeen times, which takes about 30 minutes. In the meantime we monitor the clock speeds and temperatures by writing them off to a log file each second. Afterwards we analyze the data, to make the graph below.
We can luckily say that all custom models perform much better than the Founders Edition, in the throttling test at least. The Inno3D has the highest clock speed on average, however ASUS and MSI also score well. The eventual clock speed of the Gigabyte and EVGA models is on the lower side.
In the table below you can compare the clock speeds of the various models in the throttling tests:
|Average||Founders Edition||ASUS Strix||EVGA iCX SC2||MSI Gaming X||Gigabyte Aorus Xtreme||Inno3D iChill X3 Ultra|
|0-2 min||1777 MHz||1928 MHz||1854 MHz||1938 MHz||1907 MHz||1956 MHz|
|2-5 min||1741 MHz||1924 MHz||1848 MHz||1911 MHz||1862 MHz||1943 MHz|
|5-10 min||1732 MHz||1924 MHz||1844 MHz||1910 MHz||1853 MHz||1938 MHz|
|10-20 min||1733 MHz||1924 MHz||1845 MHz||1911 MHz||1853 MHz||1938 MHz|
|20-28 min||1733 MHz||1924 MHz||1845 MHz||1911 MHz||1855 MHz||1939 MHz|