At some point in the last month or 3, I thought I read something about how there are situations where the 3950X (maybe 3900X) has some serious performance problems if Windows assigns an application multiple cores that aren't in the same 'node', and if a core is attempting to access cache that is associated with the other node--not sure if node is quite the right terminology. The 3700X doesn't have this problem because all its cores are in the same node, and it went on to say that the Zen 3 architecture wouldn't have this limitation.
Is there any truth to this?