At the moment, of r5770 hawk announcement MSI company promised an improvement in the overclocking potential to 20% in comparison with standard version radeon HD 5770, but the first overclock attempts could raise the core frequency to 24%, after overcoming the 1 GHz barrier.
The powerful power system is not satisfied with the use of air cooling. As soon as MSI r5770 hawk fell in the hands of one enthusiast , it underwent hardware modification, which allow to raise the voltage on the core to 1.75 v.
Under liquid nitrogen this video card could overclock from 875/4800 MHz to 1350/5600 MHz. Stability with this core frequency remained in the test 3DMark vantage. The memory overclock was not a priority in this experiment.
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