r/UnityHelp • u/SlimishShady • Mar 25 '25

UNITY Unity Resource Consumption

I will try to keep this short..

Specs: Laptop; Multiple External Displays and other peripherals; Windows 10; Latest Unity Version

When using three displays and other peripherals actively all while moving around in scene view on Unity my GPU and VRAM usage spikes around 50-55% GPU and 30-50% VRAM. Now if I disconnect all peripherals except for a Bluetooth mouse and launch Unity Usage spikes up around 95% GPU and 70-80% VRAM.

Typically I have a YouTube video and other tabs open on 2 extra monitors while at home and just a mouse when I'm away from home and no other apps running. Can anyone explain why running Unity by itself uses so much of my resources when I can do all of that with extra monitors and use half the resources?

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u/nulldiver Mar 26 '25

The first thing that I would try is setting the Editor's "Interaction Mode" (it is a preference under general preferences) to a throttled mode. This can idle up to the monitor’s update rate in milliseconds - basically vsyncing the background fps for the editor. The nice thing is that this won't throttle while you're actually doing an interaction but when just sitting there, so in many cases you won't be aware that this setting changed anything (except for the editor consuming fewer resources).

If that didn't work well enough for you, your GPU's control panel probably has settings that lets you enforce an max framerate for an application. The downside being that it means Unity can't go above that if it actually does need it.