ZOTAC GeForce GT 640 2 GB Review 28

ZOTAC GeForce GT 640 2 GB Review

Temperatures & Clock Profiles »

Overclocking

The overclocks 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, that's why our results here can only serve as a guideline for what you can expect from your card.


GPU overclock isn't displayed properly due to GPU-Z bug

Maximum stable clocks of our card are 1102 MHz core (22% overclock) and 1111 MHz Memory (25% overclock).

Pretty good overclocking potential, but for a card in this performance range this will have very little effect, especially since the card is probably held back by its slow memory.

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 24.8%.
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