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That's not single module bandwidth. https://www.tomshardware.com/reviews/intel-cascade-lake-xeon-optane,6061-3.html Image 27 of 36 256B Read: 8.3GB/s 256B Write: 3.0GB/s At 15W that drops to 8GB/s and 2.3GB/s

PCIe 4.0 merely enables the sequential throughput to be reached, but the surprise should be 2nd Gen Optane. The 1st Gen drive only gets 2.5GB/s read, 2GB/s writes. This drive more than triples it while lowering the small file latency from 10us to 6us. The P4800X's issue was that the sequential...