AMD Radeon RX 5700 and 5700 XT review

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Overclocking RX 5700 XT

Overclocking RX 5700 XT

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 the core clock frequencies and voltages. By increasing the frequency of the video card's memory and GPU, we can make the video card increase its calculation clock cycles per second. It sounds hard, but it can really be done in less than a few minutes. I always tend to recommend to novice users and beginners, to not increase the frequency any higher than 5% on the core and memory clock. Example: If your card runs at 1500 MHz (which is pretty common these days) then I suggest that you don't increase the frequency any higher than 25 to 50 MHz.

More advanced users push the frequency often way higher. Usually, when your 3D graphics start to show artifacts such as white dots ("snow"), you should back down 25 MHz and leave it at that. Usually, when you are overclocking too hard, it'll start to show artifacts, empty polygons or it will even freeze. Carefully find that limit and then back down at least 25 MHz from the moment you notice an artifact. Look carefully and observe well. I really wouldn't know why you need to overclock today's tested card anyway, but we'll still show it. All in all... you always overclock at your own risk!
 

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Reference  This sample Overclocked 
Boost Clock: 1905MHz Boost Clock: 1905 MHz Boost Clock: ~2075 MHz
Memory Clock: 14000 MHz Memory Clock: 14000 MHz Memory Clock: 15200 MHz

It seems each AMD launch we have issues with tweaking. This round we bump into memory limiters and a Wattman issue that limits tweaking results. So we passed on overclocking any deeper. We don't like Wattman software either, it's over-engineered up-to a point where it's just not user-friendly or fun to work with anymore. Once we get Afterburner up-to-snuff and AMD fixes their bugs, we'll revisit overclocking but even then we doubt it'll be worthwhile to accomplish tweak.

In the end we added voltage through wattman, and tweaked with Afterburner with rather mixed results.

To be continued ...


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