[vardump]

Depends on how memory intensive workload you have. AFAIK, Epyc supports 8 memory channels, while Threadripper supports only 4. So TR has effectively only 50% memory bandwidth available.

[erkken]

It's not memory intensive at all - just CPU bound

[justinclift]

Does the application and/or data set fit comfortably in the cache of one of the processors, but not the other?

(I haven't checked if they've different cache sizes ;>)