While the different turbo technologies keep getting more advanced, the actual performance during gaming depends a lot on whether or not the cooling is adequate enough to keep the clockspeed at a high level. After all, if the card lowers the clock frequency after a few minutes of gaming, the performance will suffer from this. That is why we run the throttling test. It will show if the advertised performance will be achievable after a longer period of gaming.
The throttling test consists of running our F1 2015 benchmark seventeen times, taking about half an hour. Meanwhile we keep an eye on the clock speeds and temperatures by writing them to a log file every second. Afterwards we analyze this data, with the charts below as the end result.
After a few minutes the PNY reaches a stable temperature of about 77 degrees. The clockspeed boosts to about 1911 MHz, but stabilizes about 100 MHz lower.
In comparison with the Founders Edition the PNY XLR8 performs better, but the variation in boost frequency turns out to be about as big for both cards.
While the Founders Edition ends up at an average of 1733 MHz, the PNY ends up about 90 MHz higher.
|Average||Founders Edition||PNY XLR8 Gaming OC|
|0-2 min||1777 MHz||1856 MHz|
|2-5 min||1741 MHz||1823 MHz|
|5-10 min||1732 MHz||1818 MHz|
|10-20 min||1733 MHz||1818 MHz|