And what about Ryzen Threadripper in a crunching farm?

The 32-core/64-thread Threadripper 2990WX is -for me- the only variant that has a good tdp/thread RATIO, due to the much higher tdp of this line of CPUs (180 watt for the eight-core Threadripper 1900X is a bit steep).
If you do have the money for it: Go! More PCIe lanes, room for 128 GB quad-channel RAM, etc.