We overclocked the GPU and memory of our ASUS Radeon R9 290 DirectCU II by 110 and 600 MHz, respectively, without adjusting its voltage or fan speed.
The resulting clock rates are 1110/5640 MHz, which is good for the GPU but mediocre in terms of memory clock rate. Well, we couldn’t really expect much from Elpida chips.
The overclocked card had a 4°C higher GPU temperature while its fans accelerated from 1780 to 1900 RPM in the automatic regulation mode.
There was no frequency throttling with the overclocked card and we didn’t even have to manually increase the cooler’s fan speed.