To be perfectly clear: the 1000x claim isn't about throughput, but latency. The graph in the article makes this clear: spinning drives have latencies on the order of 10ms, NAND flash about 10us, and DRAM about 1ns. The claim is that Optane will achieve latencies on the order of 10ns, or 1000x better than NAND.
The on-stage benchmark shows a write throughput of about 2GB/s, which is a much more modest improvement over the 500MB/s of a modern consumer SSD (and perfectly within reason for a PCI x2 interface).
The on-stage benchmark shows a write throughput of about 2GB/s, which is a much more modest improvement over the 500MB/s of a modern consumer SSD (and perfectly within reason for a PCI x2 interface).