How to select CPU when you buy a server?

[H4Y-Tim]

How to select CPU when you buy a server with256G RAM for ? If it's for hypervisor, which is the best?
AMD EPYC 7443P 24cores
AMD EPYC 7532 32 cores
Quad E5-4650v2 40 cores
AMD EYPC 9654 96cores

[Steven00719]

check their features according to uyour need