Overclocking Results
The Lightning is supposed to excel in overclocking and through the use of MSI’s Afterburner software along the preloaded secondary custom BIOS, we were able to achieve some good results. Unfortunately, while these clocks are high for a reference HD 7970, we were hoping for a bit more considering this card’s pedigree. It could be that putting the Lightning under LN2 or some other exotic cooling method would have allowed for even higher clock speeds but we weren’t able to test that.
Also note that we go to the points below by upping the voltage to 1250mV while running the fans at their default setting.
Core Clock: 1215MHz
Memory Clock: 6144MHz
Overclocking Results
The Lightning is supposed to excel in overclocking and through the use of MSI’s Afterburner software along the preloaded secondary custom BIOS, we were able to achieve some good results. Unfortunately, while these clocks are high for a reference HD 7970, we were hoping for a bit more considering this card’s pedigree. It could be that putting the Lightning under LN2 or some other exotic cooling method would have allowed for even higher clock speeds but we weren’t able to test that.
Also note that we go to the points below by upping the voltage to 1250mV while running the fans at their default setting.
Core Clock: 1215MHz
Memory Clock: 6144MHz


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