The same guy who called the chips in the recent two MacBook Pro models made a prediction for the Mac Pro at the same time.

>Gurman claims that Apple has developed two SoCs for the new Mac Pro, codenamed 'Jade 2C-Die' and 'Jade 4C-Die'. These SoCs would have 20 or 40 CPUs cores, which would be significantly more than anything Apple has planned for its MacBook range. Both have performance and power-saving clusters though, split 16/4 and 32/6. Gurman also expects 'Jade 2C-Die' and 'Jade 4C-Die' to feature 64 or 128 GPU cores, a huge uplift on the GPUs found in the current Mac Pro.

https://www.notebookcheck.net/Apple-is-reputedly-developing-...

Absolutely. Rumors that have been correct so far (and correctly predicted the M1 Pro and M1 Max 16 and 32 GPU core configurations) say that Apple is planning a 2 and 4 M1 Max multi-die design in the future. The M1 Max already has a die-to-die interconnect bus that is unused. Also, according to reverse engineer Hector Martin, the interrupt controller on the M1 Max theoretically allows for up to 8 M1 Max dies (though whether Apple is planning such an insane layout is unknown and unlikely.)

If the (very likely) 2-die version is released, that'll be 64 Apple GPU cores. If the (likely) 4-die version is released, that'll be 128 Apple GPU cores. Coupled alongside that would be up to 32 Performance cores and 8 efficiency cores. That should be good competition for anything NVIDIA and Intel Xeon.

No, that’s why I said that I hope … :)