I think my bigger question is a MacPro how? It's obvious you could have a "Mega" or "Extreme" chip with more cores, more GPU cores, etc.. whether that's M2-class or M3-class, etc.

The question on my mind is that Pro workstations usually allow expansion and huge amounts of memory and storage. I know people who would pay for 512GB, etc.

So far, the M-series has required purchasing integrated memory up-front (i.e., little expansion) and relatively limited amounts of memory and storage. (128GB RAM, 8TB SSD in the Studio).

That's my question.. how do they offer 512GB or 1TB memory? Do they have some sort of tiered system with 128GB on-board and expansion slots and PCI?