Taken from Videocardz …
AMD Ryzen Threadripper 3990X is Confirmed. This story is based on highly confidential documents we obtained from our source at AMD. We cannot guarantee that the dates presented here are still valid, but we can confirm that they were just a few weeks ago.
Threadripper 3960X & 3970X
AMD is planning three Threadripper 3000 SKUs: 3960X, 3970X and 3990X. The first two will be unveiled on November 5th, but the embargo on sales and reviews will be lifted on November 19th.
Threadripper 3990X
On November 5th AMD will also announce Ryzen Threadripper 3990X processor. This model is currently planned for January 2020. In November AMD will only reveal the core count and the name of the CPU itself (it is clearly written in the document, in fact, it mentions “a teaser”). It is very likely that on November 5th the clock speeds will not be revealed.
TRX40 Chipset
On November 5th AMD will also unveil TRX40 chipset and motherboard makers will have a green light to showcase their TRX40 motherboards. However, they will also not be available for sale until November 19th.
Threadripper 3980X and TRX80 Chipset
The documents we have currently do not list 3980X SKU and there is no mention of TRX80 motherboards. We are also not discussing core counts and clock speeds in this post, as this information is not available in the documents that we have as well.
Source: Videocardz