I have several nvidia cards (one is also 3080) and several cpus and I have exact same behavior as you. DX11 Suffocates CPU single thread on NPC heavy areas like waukeens rest.
Vulkan is spikes occasionally like DX11, but generally CPU single thread usage is so so much lower.
Only explanation I have come up is the NPC activity like walking around the screen. On those occasion my 5950x ryzen runs out of ST power on single threads can spike even to 100% with DX11 causing issues.
So I play with Vulkan. That is not problem free either. I have to restart game after 1-3 hours. I notice it from the fact that camera panning becomes jumpy. I attribute this behavior to saving (and reloading) and some kind of memory leak.
Last edited by Cirrus550; 25/08/23 06:51 AM.
