In the packaged game medium graphics settings and 2K resolution on a 4K monitor I get around %50 - %60 GPU usage which roams around 110-130 FPS. When I change the scalability settings to Epic and set the resolution back to 4K, the GPU percentage is back to 98-99. And I get around 80 FPS. Using UE 5.1. No V-Sync. No frame rate cap. In my other games, I get much %99 GPU usage at lower resolutions, so it must be project specific. How can I make it so the GPU usage is back to %99 on medium/low scalability settings and low resolution with a higher frame rate?
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Try looking for bottlenecks via the “stat unit” console command. Is your project set to use DirextX12 by default? Are your GPU drivers updated to the latest versions? Also, ensure that “Power Management Mode” in NVidia Control Panel is set to “Maximum Performance”.
Here I’m attaching a screenshot from Stat Unit at PIE. When I don’t hit Play, the GPU is %99. When I hit Play, the GPU percentage drops a lot.
The project is set to use DX12 by default.
The GPU drivers are up to date.
I have set the Power Management Mode to Max Perf, but it didn’t change the strange behavior.
For anyone landing here in 2023 (almost 2024) i’ve found the problem (at least for me): I had two Content Browser windows open in my second monitor, and apparently leaving them open removes focus from Unreal’s primary window and thus caps the framerate to reduce gpu and cpu usage while it’s in background and “not in use”, which is not the case…
Solution is to close the undocked Content Browser windows or disable the background resource saving feature.
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