[SOLVED] Does GPU undervolting decrease performance

Nate825

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Jun 15, 2020
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I was getting high temps around 75-80c with my RTX 2080 Super Fe. This is after using afterburner to set an aggressive fan curve. On stock settings it would hit about 1950mhz right when I start the game up and slowly drop down to settle at 1890mhz in pretty much every game I have played. I used afterburner to undervolt and I am now getting temps that I like between 65-68c. It hits max 1920mhz right when I start a game but still settles at 1890mhz even after hours of playing has been stable in all games and in some games even settles at 1905mhz. I have not seen a decrease in FPS (I play at 100fps) My question is am I losing performance whether graphically or anywhere else?
 
Solution
frequency = performance. If you're hitting the same GPU frequency, you're getting the same performance.

There's different ways of undervolting:
  • auto undervolting - you're essentially telling the GPU to run at a lower voltage, but nothing else. It checks that voltage against its stock frequency/voltage curve and runs at the requisite frequency. GPU Boost on Nvidia cards may end up overriding this as they boost past their "stock" frequency almost always.
  • manual undervolting - (Ctrl + F in afterburner) - you're modifying the frequency/voltage curve to apply a lower voltage to a given frequency. In doing this, the GPU is producing less power/heat at a given frequency which allows it to run cooler/quieter or boost to a higher...
frequency = performance. If you're hitting the same GPU frequency, you're getting the same performance.

There's different ways of undervolting:
  • auto undervolting - you're essentially telling the GPU to run at a lower voltage, but nothing else. It checks that voltage against its stock frequency/voltage curve and runs at the requisite frequency. GPU Boost on Nvidia cards may end up overriding this as they boost past their "stock" frequency almost always.
  • manual undervolting - (Ctrl + F in afterburner) - you're modifying the frequency/voltage curve to apply a lower voltage to a given frequency. In doing this, the GPU is producing less power/heat at a given frequency which allows it to run cooler/quieter or boost to a higher frequency whilst staying under the power/voltage cap. This is the correct/effective way to achieve the desired results of what most people define as "undervolting"
 
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Solution

Nate825

Prominent
Jun 15, 2020
8
1
515
frequency = performance. If you're hitting the same GPU frequency, you're getting the same performance.

There's different ways of undervolting:
  • auto undervolting - you're essentially telling the GPU to run at a lower voltage, but nothing else. It checks that voltage against its stock frequency/voltage curve and runs at the requisite frequency. GPU Boost on Nvidia cards may end up overriding this as they boost past their "stock" frequency almost always.
  • manual undervolting - (Ctrl + F in afterburner) - you're modifying the frequency/voltage curve to apply a lower voltage to a given frequency. In doing this, the GPU is producing less power/heat at a given frequency which allows it to run cooler/quieter or boost to a higher frequency whilst staying under the power/voltage cap. This is the correct/effective way to achieve the desired results of what most people define as "undervolting"
frequency = performance. If you're hitting the same GPU frequency, you're getting the same performance.

There's different ways of undervolting:
  • auto undervolting - you're essentially telling the GPU to run at a lower voltage, but nothing else. It checks that voltage against its stock frequency/voltage curve and runs at the requisite frequency. GPU Boost on Nvidia cards may end up overriding this as they boost past their "stock" frequency almost always.
  • manual undervolting - (Ctrl + F in afterburner) - you're modifying the frequency/voltage curve to apply a lower voltage to a given frequency. In doing this, the GPU is producing less power/heat at a given frequency which allows it to run cooler/quieter or boost to a higher frequency whilst staying under the power/voltage cap. This is the correct/effective way to achieve the desired results of what most people define as "undervolting"
Thank you. I used the manual method in afterburner. I figured I wasn't losing any performance since the result ended in the same frequency once it got to temp but I am new to computer building/gaming so I wasn't sure if was missing something. Thank you again.