MSI Radeon HD 7970 Lightning 3 GB Review 51

MSI Radeon HD 7970 Lightning 3 GB Review

Temperatures & Clock Profiles »


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 1210 MHz core (13% overclock) and 1850 MHz Memory (32% overclock).

MSI HD 7970 Lightning delivers some pretty amazing additional overclocking, beyond the already overclocked stock frequencies. When compared to other HD 7900 Series cards, the overclock is much higher.

The same applies to memory overclocking, 1850 MHz is simply outstanding.

Maximum Overclock Comparison
Max. GPU ClockMax. Memory Clock
MSI HD 7970 Lightning1210 MHz1850 MHz
AMD HD 79701075 MHz1715 MHz
AMD HD 79501085 MHz1785 MHz
MSI HD 7950 TwinFrozr III1020 MHz1650 MHz
GeForce GTX 6801147 MHz1833 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 Call of Duty 4 to evaluate the gains from overclocking.

Actual 3D performance gained from overclocking is 15.7%.
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