Can over clocking a gpu lower temperatures.

[Stormyskyes]

Say if I have a gtx 1080 that has a base clock of around 1600 mhz and I oc it to 1800 mhz 

and in a game with uncapped frame rates I get around 90fps but I always cap it to prevent screen tearing and the gpu runs around 83c.

with that extra 200mhz and the capped fps would the temperatures lower?

 

(Note the gpu always maxes at 83c if I cap it or not without the boost.)

[Crunchy Dragon]

No. Overclocking only increases temperatures.

[mr cheese]

You're thinking underclocking

 

You can undervolt the GPU to get (theoretically) lower temps in exchange for lower performance. If you want lower temps, I recommend watercooling

[SolarNova]

I see where your coming from.

 

Asuming u can OC without increasing voltage, im afraid at the FPS ur talking, no amount of OCing is going to reduce the total load the GPU will be under, to reach 90FPS, enough to lower the voltage step it runs on to achieve that. Thus it wont lower temperature.

 

What you can do however is undervolt the card at the same clocks, to lower temperature. YMMV

[Stormyskyes]

oddly enough due to the way the fans are set up on the card im getting a slight decrease on temperature when the frames are capped. Down to 78 from 83. Any explanation?

[Jurrunio]

If you can somehow overclock and undervolt at the same time, then it is possible to lower temps. Still, this power reduction is entirely caused by undervolting and only because its effect outweighs that of overclocking.

[Jurrunio]

Just now, Stormyskyes said:

oddly enough due to the way the fans are set up on the card im getting a slight decrease on temperature when the frames are capped. Down to 78 from 83. Any explanation?

Because frame rate cap reduces GPU usage. If you underclock the card and remove that boost, temps should go even lower.

[Stormyskyes]

Just now, Jurrunio said:

Because frame rate cap reduces GPU usage. If you underclock the card and remove that boost, temps should go even lower.

It also seems that the fans on the card are pushed harder when you over volt it though. Its reporting 40% faster fans than before.

[Jurrunio]

2 minutes ago, Stormyskyes said:

It also seems that the fans on the card are pushed harder when you over volt it though. Its reporting 40% faster fans than before.

overvolting increases heat output (rather significantly in fact), of course the fans have to work harder.

 

Over = hotter

Under = colder