Overclocking the Red Devil RX Vega 56

We didn’t spend a lot of time overclocking the Red Devil RX Vega 56.  There are three BIOSes on the card and we picked the performance BIOS which had the highest fan rpm and loudest noise for our benchmarking.  The standard BIOS is significantly quieter, and the performance BIOS is only about 1-2% performance lower than with the Boost BIOS.  The silent BIOS is very quiet and it further drops performance by as much as 1-2%.

First we ran Heaven 4.0 at our regular benching settings with the Power and Temperature limits set to their maximum.  We see 1558 MHz average core clock.

Here is the screenshot of the results of looping Heaven 4.0 continuously but with the HBM2 overclocked from 800 MHz to 920 MHz at the edge of instability.

Strangely, WattMan shows that the overclock has been applied, but the performance increase is rather small.So now we try a 5% core overclock in addition to our now 115 MHz offset to the memory.  Again we see a small performance increase.  And this result with Heaven 4.0 was our largest performance increase which lead us to wonder if the overclocks are being applied properly by WattMan. 

Since our preliminary overclocking results did not produce the usual higher performance increases as with other Vega cards, we did not attempt to undervolt the core to attempt to raise the memory overclock higher as we did with our reference Vega 56.  We are going to save further Red Devil RX Vega 56 overclocking for a future overclocking showdown with the GTX 1070 Ti.

Let’s head to the performance charts to see how the PowerColor RX Vega 56 compares with the RX Vega 64 Liquid Cooled edition and with the GTX 1070 Ti Founders Edition.


  1. We just got pricing from PowerColor for the Red Devil RX Vega 56 and 64 and I will update the article within the hour

    – 64: $699

    – 56: $599

    • So 200$ over MSRP… and yet those AIB coolers are trash compared Raijintek Morpheus II or AC Acceelero III/IV. Advanced Mining/Milking Devices it is.

      • You think Red Devil coolers are trash?

        I’ve had an RX 470 twin fan Red Devil and an RX 480 triple fan Red Devil and I thought they were excellent coolers second only to Sapphires. With both Powercolor & Sapphire being AMD only partners they tend to do the best AMD coolers.

  2. Well to bad… if gamer could pick one up for $430 It has merit.

    We need to consider GloFo/AMD is probably really juggling 14nm production/wafers to keep Ryzen/TR in the market, even just now slowing off fulfilling Vega to Apple while now seeing finally the ramp-up in the AIB Vega cards. And all they can produce look to go to miner’s as they are the one’s that would pay this price. While Polaris chip even though they could sell plenty it’s constrained because AMD/RTG isn’t near the level of 2014-2015 Tahiti/Hawaii volumes that they got from TSCM. That was a problem putting all your production in GloFo, just when the CPU demand would go through the roof. To bad they didn’t keep at least Polaris at TSCM we might see less of the inventory problems.

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