Maya is actually the better multithreaded application than Max :- ) It has fully rewritten core and perfectly DirectX scaling viewport working with real-time shaders.
Right now Intel has a bunch of processors across two chipsets that are both semi high-core ( 8/8 and 8/16 c/t ) and high frequency, but at obscene costs.
Threadripper is not that inferior in single-threaded, being 10-15perc. slower in actual production is meaningless for most part.
Second gen Threadripper overclock very well under regular cooling, good luck doing that with any Intel, but first gen Threadrippers are on crazy discount.
I've seen Threadripper 1920X for 400 bucks brand new from e-shops, and 300 second-hand ( but still brand new often). And yup, it has superior upgrade path.
750 is good enough for highest threadripper and 1080ti even.
The moment you open Maya, Photoshop, bunch of images, Chrome and watch Netflix at same time, all of which I would say is regular workload, say goodbye to your meaningless high-clocking six-core Intel.
