CPU choise for Rendering and Animation

Hello everyone, I am new to this chapter, cause I am software developer and have no idea of 3d stuff, soon I would to do some render and animation videos.
I would like to hear the opinions of people, who are engaged in rendering or animation. How powerful a processor and videocard is needed?
Largely I decide to buy NVidia 2080Ti 11Gb RAM and for begin 64Gb DDR4 RAM
But whats about CPU??
Should it be LGA2066 i9 10900X with 10 cores or more or it is enought to have LGA1151v2 i9 9900K and 8 cores?
With best wishes
V. S.