Interesting GPU/CPU Usage

[Icebear]

Originally Posted by 335th_GRAthos

You also need to look at the utilisation of the VRAM. The moment your VRAM is full, the GPU will start swapping in order to accomodate for the new graphics. This is when your GPU utilisation goes down (and your fps too) because the bottleneck becomes bringing the data in for the GPU to process them.

I noticed that too. The VRAM gets fully stretched within seconds after entering the scene. As far as I understood the VRAM cache gets cleared automatically to ensure that there is always enough free VRAM to run the application and to avoid that kind of bottleneck. IMO this does not work correctly as the VRAM is always around 100% workload.