How to Undervolt the 5070 Ti with MSI Afterburner

This guide explains how to undervolt the RTX 5000 series, specifically the 5070 Ti, using MSI Afterburner. It covers selecting voltage and frequency, editing the curve, testing, and saving your undervolt settings.

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Why undervolt?

Undervolting a GPU helps to maintain the same performance while reducing power consumption and lowering temperatures. In some cases, it can even improve performance if the GPU is power or thermally limited at stock settings.

The 5070 Ti can gain up to 10%+ more performance while consuming the same power. My undervolt for the 5070 Ti improves performance by approximately 4% while using 50-70 fewer watts. I'll also explain how to adjust settings for higher performance while maintaining stock power consumption.

Recommended MSI Afterburner interface

For ease of use, I recommend using the same MSI Afterburner skin featured in this guide:

• Click Settings (bottom right).

• Select User Interface.

• Under User Interface Skinning Properties, choose Default MSI Afterburner v3 Skin - Big Edition.

• Click Apply, then OK.

I have always preferred this skin because it is very simple and clean, but feel free to switch to the one you like the most after setting the undervolt, or if you are already an experienced user.

GPU default settings

The following picture shows the GPU settings at default.

You should see the Power Limit at 100, Core and Memory Clock at +0, and Fan Speed to Auto.

• Press CTRL+F to open the Voltage/Frequency Curve Editor. The default curve will appear.

This is the default curve on my Asus Prime RTX 5070 Ti OC. Please note that this article is not sponsored by any brand, I was lucky and bought my card at MSRP. Do not overpay graphic cards!

Your exact curve and values may vary, but the undervolting process remains the same.

How to Undervolt with MSI Afterburner

To prevent instability while editing the curve, first increase the Core Clock in the main interface.

For the 5070 Ti (but the same goes for the RTX 5000 series in general) I suggest a value between +400 to +500MHz. Unless you are really unlucky, almost any card can hold +400, and some can reach even +550 and more.

I did several tests on mine because I tried to find the best compromise between performance increase and wattage usage, and ended using +450MHz.

• Click on +0 in Core Clock (MHz), write +450, and press Enter.

Go back to the Curve Editor, and you will notice that it has changed. The old stock curve is marked in light green, while the new one is slightly above.

Choose voltage and frequency

You must decide your undervolt settings: the max voltage and frequency that your GPU should be allowed to use while gaming and executing tasks.

I recommend starting with a safe range of 900 to 950mV. If you want to save as many watts as possible, consider testing also the 850 to 875mV range, while the 950 to 1000mV range is needed to achieve bigger overclocks in the 3000-3300MHz range.

After testing for a while, for my 5070Ti I decided to use 935mV at 2955MHz. This gives me more performance than stock while using 50-70 fewer watts depending on the game and the benchmark. I call it a win!

Edit the voltage/frequency curve

• 1. Left Click on the curve point corresponding to 935mV.

• 2. Hold Shift and Left-Click to select all the area beyond it.

• 3. Press Shift + Enter twice to align all voltage points so they wont go past 2955MHz.

• 4. Don’t close the Curve Editor, go back to the main interface, and click Apply.

• 5. Check out the Curve Editor again, if the curve after 935mV is flat you are done, otherwise repeat again the steps explained in points 2, 3, and 4.

In the main interface of MSI Afterburner, the Core Clock value changed to Curve.

Please Note

The GPU should not exceed the selected voltage, but frequency might fluctuate slightly (20-40MHz).

Your actual voltage may also vary slightly. For example, when I tested at 925 it ended using 920, at 950 it used 955, while the current 935 curve uses 930mV. Overall, my card stays at 930mV with 2932 to 2945MHz depending on the game and benchmark.

Increase the memory clock

You can further increase performance by overclocking the Memory Clock. This doesn’t affect the undervolt, but requires additional testing.

The 5070 Ti can easily use a memory overclock of +1000 to +3000, but currently MSI Afterburner limits it to +2000. If you would like to use a value above +2000, there is an unlocked version available online, or you can just wait for an official update.

I tested 1000, 1500, 2000, and noticed that the jump to 1500 brings the most performance, so I am using this value. Perhaps 3000 can give better results, but I didn’t try it.

• Click on +0 in Memory Clock (MHz), write +1500, and press Enter.

• Click Apply to save the changes.

Note that modern cards like the 5070 Ti have error-detection mechanisms: if the Memory Clock is too high, the GPU won’t necessarily crash but you may experience performance loss due to error correction. Always test FPS before and after overclocking.

Related article: PSU Tier List updated to 2025

Save your undervolt

• Click the lock icon at the bottom left of the main interface to unlock the profiles.

• Ensure that Apply overclocking at system startup is enabled.

• Click Save and select a profile.

• Click again on the lock icon to lock the profiles.

Finally, make sure that MSI Afterburner is set to start with Windows, so the undervolt will apply automatically at startup, and you won’t have to adjust the settings manually every time.

• On the main interface, click Settings, select the General tab, go under General properties, and check Start with Windows. 

• Click Apply and then OK to close the window.

Test your undervolt stability

In order to test the stability of your system, I recommend using a mix of benchmarks and games.

Recommended benchmark: 3DMark Demo is available on Steam, and you can test using both Time Spy and Steel Nomad for free. The latter in particular is quite demanding, and will be enough to understand if your undervolt is somewhat stable, but it doesn’t use RTX.

Games: If your undervolt seems stable, I recommend testing it also in the games you tend to play daily, and in Cyberpunk 2077, Alan Wake 2, and/or other heavy RTX-enabled games.

If your undervolt isn’t stable, you can either reduce the MHz by 25-30 at a time, increase the voltage by 25mV, or both.

With the method explained in this guide is honestly very simple to find a working value as you can just go back to the start, increase the Core Clock by a lower value, and create a new curve again. If 450MHz isn’t stable, try with 400, 350, etc.

This is all. The actual results will depend on your cards and the values you selected.

Summary of my undervolt results

• Power Consumption:

  • 250W in 3DMark Steel Nomad. (300W at default)

  • 170-200W in most games.

  • 220W+ in heavy games.

• Performance: about +4% improvement.

• Fan speed: GPU fans used to reach 50% usage most of the time, while now they usually stay at 33%, and go higher only in heavy games.

• Temperature: the temperatures were already great, in the 60-65°C range, and now the GPU tends to stay more time at 60, and sometimes even below in light games.