What kind of performance boost can you expect from moving from Intel Core i9 to AMD RYZEN 3990X?

Question

Distributed Computing

The situation is this. In my main job, I do complex mathematical calculations on my working machine.
With them, all CPU cores are loaded at 100%.
Now I have an Intel Core i9-10850K @ 3.60GHz
10 cores 20 threads on my machine. The average time of one computing session is 3 minutes.
You have to do 50-100 sessions per day. Which results in a decent waiting time.
The math is simple - the more cores and threads, the faster the session will go.
I look aside or AMD RYZEN THREADRIPPER 3970X 32 cores 64 threads or AMD RYZEN THREADRIPPER 3990X 64 cores 128 threads.
In iron, I am an amateur. A dispute flared up in the team - will the transition to 3970X give three 2-3-fold increase in performance? and 10 card gain when moving to 3990X`th
Mathematics is all integer. It breaks well into streams. Actively works with RAM but in small volumes. The allocated memory is less than 1 megabyte per thread. Shared memory and/or locs are not used

by the PS to rewrite software for distribution over a local network is longer and more expensive than upgrading a machine.
Going to the cloud to rent capacity is also not an option - there is also a lot to rewrite.
Everything must be done locally. So just a CPU upgrade.

PPS software is licked as optimally as possible and there is nothing to speed up there. switching to GPU is also long and expensive