Overclocking on AMD used to be fairly straight forward but with the new powertune features it can throttle you pretty quick if temps get out of line and that’s what many users were upset about with the original reference 290X and this is what I feel MSI is here to fix is by providing a cooler that can keep the chip cool will offer better clock capabilities and reduced throttling.
The MSI Radeon R9-390 Gaming 8G starts life with a 1040MHz core clock and 1500 Memory which is 6000MHz effective memory clock.
As you can see the GPU moved up to 1165MHz and unfortunately voltage or any amount of tweaking could not get it farther without losing stability even just entering a benchmark, but being that I had issues with this BETA driver initially I could write that off as being an early driver and future could show much better results.
Memory could not push too far moving from 1500 (6000) to 1650 (6600) MHz which is nothing to scoff at but once again this could be the BETA drivers or even more so this could be the high memory density combines with the mem controller simply hitting its limit.
To measure the temperature of the video card, we used MSI Afterburner and ran Heaven Benchmark in a loop to find the Load temperatures for the video cards. The highest temperature was recorded. After looping for 10 minutes, Heaven was turned off and we let the computer sit at the desktop for another 10 minutes before we measured the idle temperatures.
|GPU Temperatures||Temperature (Idle/Load)|
|Nvidia GTX 690||32C/81C|
|Nvidia GTX TITAN||31C/67C|
|Nvidia GTX 780||30C/65C|
|Nvidia GTX 770||34C/79C|
|Nvidia GTX 760||31C/67C|
|MSI R9-290X Gaming||38C/78C|
|MSI R9-390 Gaming 8G||36C/72C|
The GPU while being a hot one is not really so bad as the MSI cooler does some serious work taming the best and keeping it at a stable and even comfortable 72C under full loading for a long burn in session.