TechPowerUp reported the results of their experiments with the voltage of Fiji GPU .
They explained that the development of software for Radeon R9 Fury X voltages control is a nontrivial task. In any case, support from AMD in this area should not wait. In addition, the graphics card Radeon R9 Fury X implements advanced defense mechanisms, which is why after a certain excess above the default voltage sharply reduced frequency of the GPU or standard cooling system fan starts spinning at maximum speed.
In fact, all obtained in the course of the experiment news can be divided into good and bad. The former, of course, is the existence of possibility to increase the core voltage Fiji using specialized tools . In addition, the increase in voltage and power consumption of the GPU does not make factory system cooling Radeon R9 Fury X surrender: it continues courageously to keep the temperature of the GPU within reasonable limits.
By the bad news is not the most convincing performance scalability curve: voltage increase to 1.35 caused productivity gains in a specific test (Battlefield 3 resolution 4K) by only 3%. GPU frequency was possible to raise only up to 1120 MHz, if we consider the operation under load. This power elements warmed up to 95 degrees Celsius, and power consumption has increased by 27% (150 W). Increasing the voltage by 144 mV has improved the graphics processor overclocking potential by only 5%. Manage overclocked memory can only increase its frequency rather than voltage. In this case, the memory overclocking limit the increase in frequency from 500 to 560 MHz.
The next experiment will be with a soldering iron and liquid nitrogen. Related Products :
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