Powercolor HD 7990 Devil 13 6 GB Review 141

Powercolor HD 7990 Devil 13 6 GB Review

Temperatures & Clock Profiles »

Overclocking

The overclocking results listed in this section were achieved with the default fan and voltage settings as defined in the VGA BIOS. Please note that every single sample overclocks differently which is why our results here can only serve as a guideline for what you can expect from your card.



Overclocking with the normal 925 MHz BIOS did not work. The second GPU was stuck at 925 MHz all the time, even with ULPS disabled. Switching to the 1000 MHz turbo BIOS fixed that, and all our OC results are with that BIOS.

The maximum stable clocks of our card are 1085 MHz core (9% overclock) and 1740 MHz memory (27% overclock).

Its Overclocking potential is quite nice, but wouldn't be possible if we hadn't fixed its too low cooler-mounting pressure.

Maximum Overclock Comparison
Max. GPU ClockMax. Memory ClockMax. OC Perf.
PowerColor HD 7990 Devil 131085 MHz1740 MHz147.1 FPS
GTX 6901090 MHz1805 MHz149.2 FPS
HD 79701075 MHz1715 MHz
HD 7970 GHz1185 MHz1635 MHz78.0 FPS
Important: Each GPU (including each GPU of the same make and model) will
overclock slightly differently based on random production variances. This table
just serves to provide a list of typical overclocks for similar cards, determined
during TPU review.


Overclocked Performance

Using these clock frequencies, we ran a quick test of Battlefield 3 to evaluate the gains from overclocking.


Actual 3D performance gained from overclocking is 16.7%.
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Dec 27th, 2024 20:35 EST change timezone

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