For one, OMI is just like PCIe full-duplex; second, OMI-with-DDR4-3200 is substantially lacking in throughput vs. e.g. GDDR6 that was shown in the early Power10

For one, OMI is just like PCIe full-duplex; second, OMI-with-DDR4-3200 is substantially lacking in throughput vs. e.g. GDDR6 that was shown in the early Power10/OMI slides. Also there's to note the substantial overprovisioning of the lanes to handle lane-localized transmission issues without degrading observed performance.