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 1110 MHz core (12% overclock) and 1730 MHz memory (15% overclock).

We see a high relative overclock with Zotac's GTX 660, since the card only comes with a meager 13 MHz overlock out of the box. Compared to other cards tested today, the ZOTAC card does end up a bit lower in maximum overclocking.

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 9.9%.