Higher Hz screen causing GPU temp increase?

[Zeebedy]

Hey guys,

Just finished setting up a new smaller monitor as I was having an issue with my widescreen, so went for a 27" 1440p 300Hz monitor.

My GPU usage while doing the basic stuff, is a few degrees higher (nothing major) than the 144Hz widescreen I had previously, can the jump up in monitor Hz cause the GPU to work a little harder or is it placebo for me?

 

[Zeebedy]

Higher resolution and or refresh rates can result in the GPU staying at a higher power state yes - 300Hz probably means it can't enter the lowest power state and still drive the monitor.

Thanks mate! It’s sitting around 35-37c doing the basics, so, not too bad!

 

[Zeebedy]

Just to let you guys know,

My main is 300hz and my second monitor is running at 100hz.

 

[Zeebedy]

Not too sure, it’s only running a degree or two higher so not something I’m majorly concerned about if it is because the two monitors at different resolutions and Hz.

 

[Zeebedy]

There isnt really any mystery here.

Higher refresh rate
Higher resolution
2 or more monitors
Higher bitrate
HDR
Etc....

All increase the amount of pixels being pushed and in turn increase demand on thr GPU. This has been the case since forever. The same behaviour has occurred on all my cards in multi monitor configurations for the last 20 years.

If your card is getting stuck at max clocks then that's a seperate issue/bug.

no no. its clocking down fine..

Just to elaborate on this for completeness. There's broadly 2 types of behaviour.

1) Frame limited - This can be caused by an app having vsync on or a max fps set in games. This limit will change upwards with a faster refresh monitor typically. Windows tends to keep everything vsynced. Higher refresh means higher target FPS so more GPU load and higher temps (very slight)

2) Frame unlimited - The GPU always runs as fast as it can to generate new frames, it will run as fast as it can in both instances. You wont see temp differences.

GPU cooling is designed to handle the card at 100% load, so don't worry about it and enjoy your new monitor

thank you, so far the monitor looks really good, only played BF6 yet, but looks gorgeous.

 

[Zeebedy]

Higher refresh rates absolutely increase power draw.

You can test this yourself. Run a game uncapped, check the power draw, and then cap it to 60fps.

For me running a game at 116fps (120hz tv with reflex enabled) vs 60fps can save as much as 100w at times.

Using dlss, fsr, framegen etc also reduce power consumption.

Yeah, I run BF6 with DLSS on quality mode, at 1440p high settings and get around 180-200 fps while with my GPU undervolt peak around 61c and a power draw of around 200W. That’s on a 5070ti, love this card!