All very impressive, but here's my question: what are they going to do about graphics cards? Will they find a way to connect existing graphics cards to their CPU? Will they make their own ARM-based graphics cards? Will AMD or Nvidia?
Nvidia? Ha, never in a million years. Support for one of the recent Radeons was recently added to macOS, so it's a possibility. No reason the M1 can't do PCIe, as far as I know the only thing keeping eGPUs from working on the M1 right now is software support. It could also be that the driver was added because of the extensibility of the Pro, though. My expectation is that they'll keep the GPU on the same level, which…
Still I can’t see Apple only developing one integrated GPU per year unless they somehow figure out how to magically make them somewhat approach Nvidia and AMDs modern chips. What would the ARM Mac Pro use?
It seems that Apple has put in a lot of development resources into getting Octane (and maybe Redshift and other GPU accelerated 3D renderers) to support Metal (to the point where it sounds like there may have been Apple Metal engineers basically working at Otoy to help develop Octane for Metal) and I can’t just imagine that happening just to support the the Apple Silicon GPUs. I wouldn’t be surprised if we see eGPU support announced for ARM Macs at WWDC (and maybe even the iPad Pros that support Thunderbolt. Yeah the idea of plugging your iPad into an eGPU enclosure is funny, but if it’s not to hard to implement, why not?)