Sapphire Radeon RX 570 Nitro+ 4GB review

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Overclocking The Graphics Card

Overclocking The Graphics Card

Traditional overclocking - As most of you know, with most video cards you can apply a simple series of tricks to boost the overall performance a little. Typically you can tweak on core clock frequencies and voltages. By increasing the frequency of the videocard's memory and GPU, we can make the videocard increase its calculation clock cycles per second.
 

  
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Original This sample Overclocked 
Boost Clock: 1340 MHz Boost Clock: 1340 MHz Max Boost Clock: 1425MHz
Memory Clock: 7000 MHz Memory Clock: 7000MHz Memory Clock: 8400 MHz

You can use any tweaking utility of your preference of course. We use AfterBurner based on personal preference, all other brands like ASUS, Gigabyte and thus EVGA all have nice tweaking software available as well, it's just that advanced overlay and tweak functionality that AB offers that has my personal preference. Our applied tweak:

  • Core: 1425 MHz
  • Mem: 8400 MHz
  • Power +50%
  • Voltage +96
  • Fan default %
Basically you'll gain another notch out of the graphics processor. The memory is limited at at 2150 x 4 = 8.6 Gbps but ours would not reach that number. The GPU will max out roughly at 1425 MHz, this was stable bit I would recommend dropping down 25 MHz for long term stability. We kept the fan at defaults which is sufficient with a normal to silent noise level. 
 

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In the above chart you can see relative performance difference in between a reference RX 470 card, the the AIB RX 570 card and then added the applied tweak and this our overclocked results plotted in percentage. The reference card is 100%. To the far right where you can see Aver Difference %, this is the result of the four games tested and averaged out.

So Radeon RX 570 card runs give or take 5% faster compared to RX 470. And once we teak it manually it is roughly 11% faster compared to the reference RX 480 card and thus 6% faster compared to the default clocks. This was with the TDP Power limiter tweak maxed out. Below all overclock results, measured at WQHD. 

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