I agree with everything you’ve said.
People are getting excited without knowing what price will have to be paid for the privilege of owning an ARM based Mac Pro.
AMD construct their whole product stack from EPYCs down to the cheapest Ryzen with chiplets which means there’s virtually zero waste in silicon. AMD sells millions upon millions of these chiplets in their product stack so they have massive efficiencies of scale. Same with GPUs, nVidia and AMD sell GPUs in the millions.
How does Apple compete on those terms with their monolithic CPUs and their own discrete GPUs (discrete GPU does not also imply upgradeable GPUs) which they’ll make in far less quantity than either AMD or nVidia. With such small quantities how will Apple offer 8, 16, 24, 32 core options? Maybe they’ll use multiple SOCs? Whatever they do the Mac market is still well under 10% of the enormous PC market which Intel, AMD and nVidia are shipping millions of units into. So how does Apple compete on price?
Apple’s Afterburner Card, a simple FPGA board for ProRes decompression is priced at $2000. How much will discrete GPUs cost if that’s a benchmark for Apple custom silicon?
By the time Pro level ARM based Macs ship AMD and nVidia will be on 5nm too, we could see a 24 core Ryzen for $800 and PCIe 5 GPUs for $1000 msrp and 64 core Threadrippers for $2.5k and a new 96 or 128 core high end version. I don’t think Apple will have any sort of advantage when you factor in Price/performance.
There is one huge advantage to buying a PC that is knowing that you’re not lining the pockets of the particularly oleaginous Tim
Cook.

