Cpu/gpu for working in ue4

Hi i would like to know are cpus like fx 6300, athlon x4 860k (basically a10 7850k without igpu) and fx 83xx good enough to work in ue4.
Also is there a way i can make use of all 6/8 cores fx cpu provide, and can i actually optimize engine to use lets say 1 core to handle game physic, 1 core to handle rendering… and game to actually work that way in both inside game engine and game alike.

Also do i depend more on gpu or cpu in ue4?
/example will i benefit more from i5 4690k + r9 380 or fx 8320e and r9 390?

I have the A10-7850K and UE4 runs absolutely fine, but I’m not sure about those other CPUs. There isn’t really any easy way for you to dedicate specific cores to certain parts of the engine. In UE4 you depend more on the CPU, as the GPU is mainly just used to render the scene.

hm a10 you have sould be around 10% better at single core performance than fx 63xx/fx 83xx but fx have more cores. If it can be made to use fx cpu full potential then fx sould be better than a10 if not then a10 is better.