Re: So many storage questions
"The PowerMac (LOL) has PCIe 4, and you, son, overlooked that."
I don't think it does (in spite of what the ElReg article says). I believe it has:
Three full-length PCI Express gen 3 slots onboard:
- One x16 slot; two x8 slots
- 75W auxiliary power available
Plus the MPX options.
AFAIK, Intel does not currently have a PCIe 4.x capable CPU/PCH available - it was expected in 2019 but they were expected to be 10nm parts. It is unclear whether Intel can easily (i.e. is it worth the effort given the potential delay to the products or do you wait until the 10nm/7nm parts get to market) retrofit PCIe 4 to 14nm CPU's and a new 14nm PCH.