Best processor for rendering, simulation and modelling in Solidworks?

Hello,

I'm building a CAD workstation to work primarily with Solidworks. I would be doing mostly a little bit of everything: Modelling, Simulation and Rendering.

I've been reading about it and it seems that clockspeed and cores are the main variables here but in the Intel processors that I have seen so far it is mostly about limits: You have either 8 cores but 3.2GHz (i7 6900K) but on others is 4 cores and 4GHz (i7-7700K).

So mainly my question is: this is relevant at all? The differences on performance of one or another are going to be noticeable? Is there middle ground?

SolidworksGeneral