maxsteele

Nulltime
But why?

Heat and power consumption.

Subnautica: Below Zero runs 143 fps at 1440p with this card, and with the default power curve, I get temps with air-cooling at 75-76 C . With this undervolt profile, I still get 143 fps at 1440p, and my temp is 65-67 C.

Less power used = less heat generated, but I don't take a performance hit.

rjohnson11
If you have a good enough PC case there should more than sufficient air circulation. So, in my opinion undervolting and/or underclocking would not be necessary. 

Ziakel
 Just curious what's everyone undervolting their card to. 
Mine(stock bios) is sitting .850mv boosting to 1900mhz with temps around 70c. Peak power from afterburner is 327w(idk if that's accurate). 
This setting beats my out of the box Port Royal score while using less power. 
 
If you guys have better settings, please share them. I'd love to get more performance for less wattage
 

KingEngineRevUp
1V @ 2040 MHz

• Timespy:  
• Port Royal:  

 
Timespy Comparisons:

• Comparison between +195/+1250 with case open, it's a 3% difference  
• Comparison between my stable +165/+1250 with case closed it's a 1% difference  

So I'm going to stress test it more and see how it goes and probably keep it at 1V. It's a middle ground between lowering power but also getting near my max performance. 

• It's still +10 over my highest OC on my EVGA FTW3 3080 with XOC BIOs.  
• It is +12-14% over my daily driver EVGA FTW3 3080 with XOC BIOs  

 

rjohnson11
If you have a good enough PC case there should more than sufficient air circulation. So, in my opinion undervolting and/or underclocking would not be necessary. 

 
But I have to ask myself, is it worth drawing in 75W=100W more for 3% performance? 
 
That is 28% more power and heat for 3% performance? That's the dilemma. 

DiegoFloresEVGA

KingEngineRevUp
1V @ 2040 MHz

• Timespy:  
• Port Royal:  

 
Timespy Comparisons:

• Comparison between +195/+1250 with case open, it's a 3% difference  
• Comparison between my stable +165/+1250 with case closed it's a 1% difference  

So I'm going to stress test it more and see how it goes and probably keep it at 1V. It's a middle ground between lowering power but also getting near my max performance. 

• It's still +10 over my highest OC on my EVGA FTW3 3080 with XOC BIOs.  
• It is +12-14% over my daily driver EVGA FTW3 3080 with XOC BIOs  

 

rjohnson11
If you have a good enough PC case there should more than sufficient air circulation. So, in my opinion undervolting and/or underclocking would not be necessary. 

 
But I have to ask myself, is it worth drawing in 75W=100W more for 3% performance? 
 
That is 28% more power and heat for 3% performance? That's the dilemma. 

at 1v @2040MHz what were your temps like? at the 1905 mhz @ .875 volt config i lost around 8-10 c and it seems stable to me. ty

charlesborner

KingEngineRevUp
 
But I have to ask myself, is it worth drawing in 75W=100W more for 3% performance? 
 
That is 28% more power and heat for 3% performance? That's the dilemma. 

 
Do you really find yourself missing that extra 3% in everyday?

Or just during benchmarking?

If you only miss it while benchmarking, I'd say no, it isn't worth it.

KingEngineRevUp
1V @ 2040 MHz

• Timespy:  
• Port Royal:  

 
Timespy Comparisons:

• Comparison between +195/+1250 with case open, it's a 3% difference  
• Comparison between my stable +165/+1250 with case closed it's a 1% difference  

So I'm going to stress test it more and see how it goes and probably keep it at 1V. It's a middle ground between lowering power but also getting near my max performance. 

• It's still +10 over my highest OC on my EVGA FTW3 3080 with XOC BIOs.  
• It is +12-14% over my daily driver EVGA FTW3 3080 with XOC BIOs  

 

KingEngineRevUp

DiegoFloresEVGA

KingEngineRevUp
1V @ 2040 MHz

• Timespy:  
• Port Royal:  

 
Timespy Comparisons:

• Comparison between +195/+1250 with case open, it's a 3% difference  
• Comparison between my stable +165/+1250 with case closed it's a 1% difference  

So I'm going to stress test it more and see how it goes and probably keep it at 1V. It's a middle ground between lowering power but also getting near my max performance. 

• It's still +10 over my highest OC on my EVGA FTW3 3080 with XOC BIOs.  
• It is +12-14% over my daily driver EVGA FTW3 3080 with XOC BIOs  

 

 Would it be pointless to switch my gpu from normal to oc and undervolt?
 

It is pointless. The switch just changes the can profile. You can set your own custom fan profile. 

demon09

braz989
I am new to all of this and have the 3080ti ftw3, I followed you guys and changed it to .875v at 1905mhz.  Do I need to do anything with the memory clock or leave it?
 
Thanks!
 
Edit: WOW look at my signature, that is how long it has been since I posted lol!

you can probably do +1000 memory +-. I find the sweet spot for most of these 30 series card right around 1v you can go lower if you like but can varry based on power limits and cooling of the card . No one can really say what clock at what voltage will be good for you so make sure you test it

demon09

braz989

demon09

braz989
I am new to all of this and have the 3080ti ftw3, I followed you guys and changed it to .875v at 1905mhz.  Do I need to do anything with the memory clock or leave it?

Thanks!

Edit: WOW look at my signature, that is how long it has been since I posted lol!

you can probably do +1000 memory +-. I find the sweet spot for most of these 30 series card right around 1v you can go lower if you like but can varry based on power limits and cooling of the card . No one can really say what clock at what voltage will be good for you so make sure you test it

So I am essentially overlocking AND undervolting at the same time? I thought you would leave everything where it is and undervolt.  Or am I wrong?

yep pretty much your just overclocking at a lower voltage. Depending on power limits and temps sometimes you can get close to even a normal overclock. Example my 3070ti ftw at stock will do 2115mhz with no undervolt but because it will power throttle at stock voltage it won't hold that clock under heavy gaming load that my undervolt at .993v 2085 mhz ends up so close and with less power. But if your more temp limited or power limited on a given card sometimes there is benifit in going even lower

demon09

braz989

demon09

braz989

demon09

braz989
I am new to all of this and have the 3080ti ftw3, I followed you guys and changed it to .875v at 1905mhz.  Do I need to do anything with the memory clock or leave it?

Thanks!

Edit: WOW look at my signature, that is how long it has been since I posted lol!

you can probably do +1000 memory +-. I find the sweet spot for most of these 30 series card right around 1v you can go lower if you like but can varry based on power limits and cooling of the card . No one can really say what clock at what voltage will be good for you so make sure you test it

So I am essentially overlocking AND undervolting at the same time? I thought you would leave everything where it is and undervolt.  Or am I wrong?

yep pretty much your just overclocking at a lower voltage. Depending on power limits and temps sometimes you can get close to even a normal overclock. Example my 3070ti ftw at stock will do 2115mhz with no undervolt but because it will power throttle at stock voltage it won't hold that clock under heavy gaming load that my undervolt at .993v 2085 mhz ends up so close and with less power. But if your more temp limited or power limited on a given card sometimes there is benifit in going even lower

Thank you for explaining.  Do you normally run both precision and msi afterburner together?  I have an aggressive fan setting on precision that I want to keep but I also want the undervolt from msi.  
 
Here is a screenshot of my settings: https://imgur.com/X2W9ALY

precision also has a voltage curve tab. Ideally I'd pick one or the other so they don't conflict, but you can probably run both and just set after burner to apply its oc at boot but not run at boot by clicking the top right corner little windows icon.

demon09

braz989

demon09

braz989

demon09

braz989
I am new to all of this and have the 3080ti ftw3, I followed you guys and changed it to .875v at 1905mhz.  Do I need to do anything with the memory clock or leave it?

Thanks!

Edit: WOW look at my signature, that is how long it has been since I posted lol!

you can probably do +1000 memory +-. I find the sweet spot for most of these 30 series card right around 1v you can go lower if you like but can varry based on power limits and cooling of the card . No one can really say what clock at what voltage will be good for you so make sure you test it

So I am essentially overlocking AND undervolting at the same time? I thought you would leave everything where it is and undervolt.  Or am I wrong?

yep pretty much your just overclocking at a lower voltage. Depending on power limits and temps sometimes you can get close to even a normal overclock. Example my 3070ti ftw at stock will do 2115mhz with no undervolt but because it will power throttle at stock voltage it won't hold that clock under heavy gaming load that my undervolt at .993v 2085 mhz ends up so close and with less power. But if your more temp limited or power limited on a given card sometimes there is benifit in going even lower

Thank you for explaining.  Do you normally run both precision and msi afterburner together?  I have an aggressive fan setting on precision that I want to keep but I also want the undervolt from msi.  
 
Here is a screenshot of my settings: 

precision also has a voltage curve tab. Ideally I'd pick one or the other so they don't conflict, but you can probably run both and just set after burner to apply its oc at boot but not run at boot by clicking the top right corner little windows icon.