Sapphire HD 7870 Flex GHz Edition 2 GB

Sapphire HD 7870 Flex GHz Edition 2 GB

Temperatures, Clock Profiles & Boost »

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.



Maximum stable clocks of our card are 1215 MHz core (22% overclock) and 1365 MHz Memory (14% overclock).

GPU overclocking is decent, but a little bit lower than other HD 7870 cards we tested before. Memory overclocks not so much, because Sapphire chose to use Elpida memory instead of Hynix which overclock much better.

Maximum Overclock Comparison
Max. GPU ClockMax. Memory Clock
Sapphire HD 7870 Flex1215 MHz1365 MHz
MSI HD 7870 HAWK1260 MHz1600 MHz
ASUS HD 7870 DC II1260 MHz1620 MHz
AMD HD 78701205 MHz1520 MHz

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,
reached 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 14.8%.
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