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.
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.