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Nvidia 3080FE undervolting - what settings are working for you?

Spudgun

Spudgun

Spudgun

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Joined
18 Oct 2002
Posts
1,654
Good evening all,

This thread isn't to discuss undervolting, but is intended to be a note of the settings that are working for various users as this might help others who venture in to this area.

Please refrain from offering opinions on the pros/cons of undervolting or even a discussion as to how to do it as there are plenty of other threads for that already.

Please just stick to adding a note on what settings you have decided to settle on and are working for you. Of course, we are all aware of issues around the silicon lottery and there will be differences in individual cards, but the material that you all share should provide the 'ballpark' for all those that choose to follow into the world of undervolting.

I'm really, really new to this, but my first attempt is 1875mhz at 875mv - I'm hoping to be able to get some more time over the Christmas period to tinker with this further, but I'd be very interested to hear what has been working for other people.
 
I run mine at 0.8v/1800mhz, really cool and quiet. I have another profile with 0.925v/2000mhz but the 5% framerate boost is not worth the extra power/heat, I only use it if I'm struggling to hit acceptable framerates.

When I first bought the GPU I had it at 0.85v/1900mhz for a while but found it to be unstable in RTX games only (everything else was rock solid) - CP2077 and Metro Exodus EE would crash after 2-3 hours so its worth stress testing with RT games.
 
I've set mine at 781/1770, boosts to 1785 and its handled everything I've thrown at it yet.

Big however, though, I'm yet to try anything heavily ray traced, which I suspect might mean having to have more mv and another profile for it.

Will be reinstalling CyberJunk 2020 to see how it handles it.
 
I run mine at .9 at 1950. I can run mine at .887 at 1920 and things like quake rtx ran fine for hours on the air cooler.

However, since I've watercooled I've added another step on volts and a couple on the clock. I get an extra step as I don't hit the 60c threshold and cause a nother drop anymore.

Tbh I've not pushed it any further, but I suspect I could go further.
 
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Actually, just remembered, I had a good hour on Control, maxed out with full RT and DLSS, with the undervolt and no issues.

Does that count as a heavy RT test?
 
Kelt said:
Actually, just remembered, I had a good hour on Control, maxed out with full RT and DLSS, with the undervolt and no issues.

Does that count as a heavy RT test?
Click to expand...
Its heavy with RT. But as I understand it, quake rtx is the most stressful...as it is fully path traced.

My testing suggested the same. Vram and GPU temps rocket with that game.
 
lnoton said:
Its heavy with RT. But as I understand it, quake rtx is the most stressful...as it is fully path traced.

My testing suggested the same. Vram and GPU temps rocket with that game.
Click to expand...

Ah, just loaded up CP2077, thought it was going well, got ten minutes into it fully maxed out and then it locked up.

Yeh, looks like I'll need a few more Mv for this.
 
.887mV @ 1920MHz.

All depends how much power draw you actually want to drop from the card though. Some people want it stable at the typical clocks it would sit in left to its own devices with a slight drop in power consumption. Some people want a significant power drop, and are willing to drop the clock speed to get it.
 
Settled on 800/1785 for the moment. Boosts to 1815 and has passed a two hour CP2077 test on full psycho (lol) settings.

Good balance between power and noise for me.

Got to say, with RT, CP2077 does look amazing.
 
Holst1981 said:
What program are you using to set this?

Sorry for the noob question but I've been on AMD until recently.
Click to expand...

I think some people will be using MSI Afterburner. Although might be some others that I'm not aware of.

I might take a look at this for mine at some point too.
 
This is what I use on my 3080FE, 1935 @ 0.925

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Kelt said:
Interesting, you don't allow your card to zero its fans?

I like mine to zero at idle, less wear and tear!
Click to expand...

There was a point that you couldn't set a custom fan profile on this card in afterburner and still have it drop to zero. I assume this has changed now but I haven't looked at it in months.

It's quiet and fan wear is not something I've ever run into or worry about.
 
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