Gen 5 pcie is ~4GB/s per lane, AMD Genoa chips have 128 such lanes. That means on the order of 500GB/s aggregate throughput, which is comparable to the aggregat

Gen 5 pcie is ~4GB/s per lane, AMD Genoa chips have 128 such lanes. That means on the order of 500GB/s aggregate throughput, which is comparable to the aggregate theoretical throughput of the 12 channel DDR5 RAM of the Genoa CPUs. In other words, with enough data interleaving between enough NVME SSDs, you should have SSD throughput of the same order of magnitude as the system RAM. The weights are static, so it’s just reads.