DX11 Pegs out GPU Stats in Task Manager. DX12 looks normal

Development Rendering
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1

Hi all…

UE 5.1
All default render settings (started from a empty template).
This is on a nVidia RTX A4500

I have a question around DX11 vs DX12. I needed to change my project settings to use DX11 vs. DX12. However, I noticed that when I did, the OS was reporting that the GPU was now at 99% Utilization.

I made no changes at all to the UE game/app… Only change was project settings, changing from one DX version to another.

Does this indicate that I also need to change other settings with the app so that DX11 performs better?

When I run the app, the app itself does not seem to perform any better or worse when changing between the two DX version.

Any help will be greatly appreciated.

DX12
DX12803×287 18.6 KB

DX11
DX11806×289 21.5 KB

2

your gpu might be going into power saving mode. you can disable it in the Nvida Control Panel

3

Can it do that if I am active on the computer? You know, poking around UE, etc…

4

im not sure but you said the app performs the same, so my first thought was power saving mode