I am using Unreal engine 4.25 for a cinematic showreel. Not in a plan to compile for a game. Basically I will be only rendering what is shown on the viewport.
So for viewport display, UE uses GPU or CPU?
I mostly use high poly content from quixel and my own creations. Then cinema quality trees(high poly)from speedtree.
Presently I have 2080ti, i9 9900k, 128gb mem and several TB HDD.
your 2080ti will have limited video memory
if you’re not planning to optimize anything, you should probably look into getting an RTX quadro with more vram