high quality for filmmaker color davinci resolve

For great quality, you'll need CPU encoding (e.g., x265), not GPU. If you want speed but are content with okay/decent quality, you would use GPU (e.g., NVENC).

That said, there are quite a few threads on this site related to settings for getting the most out of your CPU/GPU encoding. I suggest you take a look through them.

Zitat von donclips

Rendering is very slow when I render with PROCESSOR

Yes. So if you value speed over top quality, you can use your GPU.

BTW, both CPU and GPU are processors. That's what the 'P' stands for.

Lower the CRF value? 17 should be quite good. Personally I use x264 for final renders and while not fast I have a modern CPU and it works well enough for when quality is the main goal.