Overclocking

Before finishing up my testing I did want to see just how well the PowerColor PCS+ R9 380 would overclock as well. To do this I broke down the overclocking into three sections, the GPU clock, Memory clock, and then both together. This way I could get my peak overclocks on each and then see if the card could handle them together. Overclocking the GPU clocks went identical with the MSI 380, on both cards I saw 1130MHz. But when it came to memory overclocking I tried to cut out a few of my earlier overclocks knowing how the other 380 performed but I was surprised to run into a wall when testing above 6700MHz. Normally when overclocking memory I will see some artifacts when I push it past its limit or worse case a drive crash. This time around though the PowerColor would actually turn off the PC completely, no artifacts, no drive crash, no bluescreen even. I would be especially careful overclocking the PCS+ R9 380 on the memory side because of this. Not having memory overclocks isn’t really much of a loss anyhow, almost all of the improvements come from a good GPU clock speed bump.

So with my two overclocks I did try to run them together but I had a driver crash. Given the issues with the memory before I went ahead and bumped that down a notch and did the same for the GPU clock. Once I did that I was able to benchmark the card successfully. In the end the MSI overclocked better and saw a slightly higher FPS result as well. The PowerColor overclocked well on the GPU side but there is clearly issues with pushing the memory. 

GPU Clock Speed Overclocking
GPU Clock Speed Pass/Fail FPS Result Notes
970MHz Pass 52.22 Stock Clock
1050MHz Pass 55.61  
1100MHz Pass 57.88  
1150MHz Fail N/A Driver Crash
1130MHz Pass 59.24  
1140MHz Fail N/A Driver Crash
Memory Clock Offset Overclocking
Memory Clock Speed Pass/Fail FPS Result Notes
5500MHz Pass 52.22 Stock Clock
6500MHz Pass 52.53  
6700MHz Pass 52.62  
6900MHz Fail N/A PC Hard Crashed
6800MHz Fail N/A PC Hard Crashed
GPU and Memory Overclocks Together
GPU Clock Speed Memory Clock Speed FPS Result Notes
1130MHz 6700MHz N/A Driver Crash
1120MHz 6600MHz 59.10  

 

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garfi3ld's Avatar
garfi3ld replied the topic: #36760 29 Jun 2015 23:06
Today I take a look at the 4GB R9 380 from PowerColor, check it out!

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