XFX HD5750 XXX & eVGA GTS450 & Powercolor HD5750 LP Review

The tests were performed in a controlled air conditioned room with temperatures maintained at a constant 24c – a comfortable environment for the majority of people reading this. These results are taken with the system built inside the Bitfenix Colossus .

Idle temperatures were measured after sitting at the desktop for 30 minutes. Load measurements were acquired by playing Crysis Warhead for 30 minutes and measuring the peak temperature. We also have included Furmark results, recording maximum temperatures throughout a 30 minute stress test.

The reference cooler on the GTS450 is actually the best performer on test today with temperatures never exceeding 60c when gaming. The Powercolor HD5750 Low Profile card delivers a good result with temperatures in the mid 60s when playing Crysis. The single slot XFX cooler maintains a higher ambient temperature but under load manages to keep the card running at the same temperatures as the lower clocked Powercolor solution.

Return to ambient is a feature we have recently added to our reviews … we measure the time it takes for a solution to return to idle temperatures, immediately after full load. The faster the time, the better the cooler – for example a Noctua NH D14 cooler will return an Intel processor to idle temperatures much faster than a reference cooler. This is a good indication of how quickly a heatsink can dissipate heat.

We can see that a single slot cooler isn't without limitations as the XFX card takes 7 seconds longer than the Powercolor solution to return temperatures to the idle state. The eVGA solution is the quickest, scoring around 9 seconds under our stressed conditions.

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