NVMe NAND consumer desktop:
1 PCIe v4 lane == 2.0 GiB/s max (all drives) 1 cheap consumer M.2 drive ~= 1.3 GiB/s max thermal/cache limits ~= 0.5 MiB/s (sustained load) best case ~= 1.3 GiB/s worst case ~= 0.5 MiB/s SATA NAND enterprise server: 8 PCIe v3 lanes == 8.0 GiB/s max (all drives) 4 enterprise SSDs ~= 700MiB/s max (each drive) cache limits ~= 50 MiB/s min (each drive) best case ~= 2.8 GiB/s worst cas e ~= 50 MiB/s