Undervolting the RX 5700 XT graphics card
we will undervolt RX 5700 XT, RX 5700 in AMD's proprietary Adrenalin 2020 utility. If you own an RX 5700 XT or RX 5700, you probably know that the temperatures of this card reach 100 degrees in the GPU Hotspot. At the same time, the chip itself can operate at a temperature of 75 degrees.
You can perfectly understand the desire of the owners of the RX 5700 XT to undervolt the video card, reduce the voltage on the card, reduce the fan speed and temperature.
Also, this manual is 100% applicable to the RX 5700, RX 5600 XT and RX 5500 XT video cards. Those. all cards of the RX 5000 series on the NAVI chip.
For a detailed theory on what Undervolting is, see the RX 580 undervolting video.
What is undervolting?
In a nutshell, undervolting, undervolting or downvolting, is a decrease in the voltage supplied to the chip, which is deliberately overestimated from the factory, for the stable operation of all chips in the series. But the chips are different, and some can easily run at much lower voltages. That will reduce the noise level, the supplied voltage and temperature.
Our task is to find the minimum voltage for your particular instance at which the RX5700XT chip will work stably.
Undervolting RX 5700 XT step by step
Let's get down to undervolting the RX 5700 XT.
Step 1. Launch Adrenalin 2020 and enter the “Settings” section
Launch Adrenalin 2020 and go to the “Performance” tab, “Settings” subsection.
When you first enter the settings section, Adrenalin 2020 will give you a warning window (End User License Agreement (EULA)), which you need to accept, stating that you take full responsibility.
Switch settings from automatic to manual.
Turn on “Advanced Control” and see 3 frequency modes in megahertz.
We also set the voltage manually and see for each frequency its own voltage scale in millivolts.
Step 2. How to select voltage when undervolting RX5700XT?
We begin to reduce the voltages by 50 millivolts in the most recent scale with the maximum frequency, and run the FurMark test for 2-3 minutes after each voltage change.
When you get to a critically low voltage, you will have artifacts or the FurMark test will freeze, from that moment you increase the voltage by 10 millivolts and run the test again.
And so on 10 millivolts until FurMark works stably.
For medium frequency, do not touch the voltage yet, then lower it by 50-100 millivolts. For RX 5700 XT, unlike RX 580, undervolting RX580 read on the site, which had 8 frequency modes available, the average mode will not allow you to reduce the voltage more than possible, depending on how much you managed to reduce the voltage at maximum frequency .
I also limited the card's power consumption to 18% after frequency and voltage stabilization. At a limit of 20%, the FurMark test hung.
At a frequency of 2100Mhz - 1035 Millivolts
At a frequency of 1450Mhz - 784 Millivolts
At a frequency of 800Mhz - 750 Millivolts
On the screen you can see my Undervolt RX 5700 XT performance in the FurMark test. For clarity of results, I deduced the indicators of the GPU-Z program.
Pay attention to the fields:
GPU Clock
memory clock
GPU temperature
GPU Temperature (Hot Spot)
Memory Temperature
GPU Load
GPU Chip Power Draw
GPU Voltage
Watch carefully and monitor the temperatures.
Step 3. Testing the result of undervolting in FurMark and games
After stable work in FurMark for 2-3 minutes, we launch the game at ultra settings and test it in the game at ultra settings, if the game does not freeze and various artifacts do not appear, then you have found the minimum stable operating voltage and downvolted the rx 5700 XT.
I tested in the Red Dead Redemption 2 benchmark on ultra settings.
As you can see, we managed to reduce the voltage on the card by about 0.150 hundredths of a volt or by 15%, which is very clearly seen in freeze frames, as well as by turning the cooler by 300 rpm or 20%.
The temperature of the card remained approximately the same, but HotSpot was reduced by 5 degrees according to the FurMark test.
This is a good result for the Undervolt RX5700XT.
So your card will be quieter, cooler and live longer.
All the best and happy undervolting of the RX 5700 XT.