https://videocardz.com/76872/hwbot-adds-amd-ryzen-threadripper-2990x-2970x-and-2950x
HWBOT adds AMD Ryzen Threadripper 2990X, 2970X and 2950X
It is interesting that the 2950x has a 125w TDP and a lower clock then the 1950x (with the TDP it makes sense) and only the 2990x will have the 250w TDP rating.
I think AMD mentioned in a interview that a 16c or less configs would be 2 dies vs 4 dies. (active)