AMD's 3rd Gen, 64-core Threadripper, also known as the Threadripper 3990X, is coming next year.
The monster desktop processor will offer 64-cores and 128 threads. It will also have 288MB cache - essentially double what the Threadripper 3970X has, along with the Zen 3 architecture and 7nm manufacturing process.
The chip's 280W TDP helps explain why AMD moved forward to the new sTRX4 socket, as the massive new processor will need a beefier power delivery subsystem.
The new Threadripper 3990X won't be backward compatible with existing X399 motherboards.
AMD already owns the high-end desktop market with its 3rd Generation Threadripper CPUs comfortably seeing off Intel's new Core i9-10980XE in most tests.
There's no word on pricing yet and availability is mentioned as being 2020.