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.
The maximum stable clocks of our card are 1265 MHz core (7% overclock) and 1735 MHz memory (16% overclock).
GPU overclocking is really nice, better than on most other HD 7970s. Memory overclocking works alright as well, but other cards reached higher levels.
Maximum Overclock Comparison |
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| Max. GPU Clock | Max. Memory Clock |
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HIS HD 7970 X Turbo | 1265 MHz | 1735 MHz |
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ASUS HD 7970 Matrix | 1230 MHz | 1790 MHz |
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Sapphire HD 7970 Toxic | 1275 MHz | 1885 MHz |
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Gigabyte HD 7970 SOC | 1155 MHz | 1905 MHz |
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MSI HD 7970 Lightning | 1210 MHz | 1850 MHz |
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AMD HD 7970 GHz | 1185 MHz | 1635 MHz |
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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.
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 14.6%.