AMD stated that we'll never see 48 cores model. And 64 model will come with big delay as said above.

@IshikawaRyan

https://www.onlinetrade.ru/catalogue/protsessory-c342/amd/protsessor_amd_ryzen_threadripper_3970x_trx4_box_100_100000011wof-1972699.html

I see it in some shops, do not know how fast you'll get it

The Threadripper 3990X has 288MB of cache and features a base speed of 2.9 GHz with support for boost speeds up to 4.3 GHz.

It’s a 280 watt processor with support DDR4-3200 RAM and 64 lanes of PCIe.

ASUS Water Cooler prototype (420mm, but thin radiator)

In only 2-3 years pair of 420mm radiators will become standard for top end consumer systems. And in next years it will be more.

All in one system is not best choice, much better idea is to just use components with better fans and better radiator. Plus both pump and CPU block will be always better compared to all in ones.

Rumors spread about TRX80 and 3990X added limits

Original AMD idea had been to have 8 channel memory as Epyc (as essentially Threadripper is Epyc). So, big and hot GF chip part already had 8 channel memory interface in it, but it was not routed to the socket (SP3 socked used for all Threadrippers is made for Epyc and can support up to 128 PCIE channels and 8 memory channels).

But after consultation with investors (who also own Intel) it was decided to do multiple things:

• Cut compatibility with x399 by rerouting socket signals and routing existing 4 PCIe lines as addition to chipset (due to Taiwan companies requests). Original plan was to have 100% compatibility (Taiwanese companies asked to artificially limit memory performance at 3000-3200Mhz max, but this plan was abandoned).
• Cut 8 channel memory chipset this year - TRX80. Prototype 8 channel boards working with 3rd gen Threadripper existed and are known for industry insiders (but due NDA they are keep silent).
• Cut of 48 core variant to have upgrade path for 32 core owners for next gen model.
• Increase of 64 core price by $1000 from originally planned (note that it should be 8 channel memory also!).
• AMD and MB manufacturers had been very worried that 8 channel 32, 48 and 64 core models can literally block upgrades.
• AMD can't do 128 core chips with reasonable TDP and will be stuck with 7nm+ and later 5nm process.
• AMD is also won't be able to increase performance per clock a lot. For next 3 generations it is expected to have real life performance increase at around 3-5% per generation, same as during Intel stuck period.
• If AMD sold 32 and 64 core models for the price equal to cost to produce (including design cost), without selecting absolute best chiplets for TDP, almost everyone could afford them as 64 core will be below $400.

AMD is a bad guy now, expect more bad surprises this summer and fall. AMD also will introduce new special rules dealing with press, where any leak or open discussion of AMD action will have bad consequence instantly.

3990X compared to dual Xeon's system

IO Chiplet - same as in Epyc but laser specially disables half of it (4 of 8 memory channels and half of PCIe lines).

Yes, say thanks to AMD friends, technically it has NO reason at all (except slightly more profits for MB vendors).