How to determine from command line if NVMe slot is gen 3 or gen 4?

Gen 4 SSDs aren't worth it unless you're working with large files and doing a lot of sequential readwrites

Or the next generation of GPUs benefits from the doubled throughput of PCIe and slots (Note that PCIe devices will also work normally on a PCIe

will gen 4 nvme work in gen 3 slot One PCIe x4 gen 3 Apple IO card Four PCIe x8 gen 4 Two single height Two double height Two PCIe x16 gen 4 Double height can work next to Optional

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