4K raytracing in 2020.1 beta editor - Which CPU: Intel i7 10700k or Ryzen 9 3900x (or other)?

Hi!

Our studio is building a solution that needs decent frame rates (at least 25fps... yes, we make films) while using raytracing in 4K game mode in editor. We are using 2020.1 beta, since it can use raytracing with skinned meshes as well.

We could build the project, and then run it, and I presume that would give us better frame rates, but for convenience running in editor would be super.

We are now investing in hardware, and we would love to find out which CPU would be best for this use case. So far the main contenders are:
Intel i7 10700K
AMD Ryzen 9 3900x
(other?)

The foundational question really is: single core vs multi.core... which is best here? intel or AMD?

Our GPU will be the RTX 2080 Ti.

Any thoughts?

Any help would be much appreciated.

Cheers!