[Symmetry]

Back when Intel first announced their crosspoint memory they predicted that it would have a much longer operational life than traditional SSDs. Now that they've finally managed to create a working product with it they're only saying that it has a lifetime a few times longer than SLC NAND.

Since write endurance is spread over the whole SSD you can easily get a cache four as big as the Optane equivalent for I presume the same amount of money and end up with the same endurance, higher throughput, slightly more latency, and a much higher cache hit rate.

[ericd]

That's actually great, because most drives these days are the much lower endurance MLC, rather than SLC. So we get much higher density AND higher endurance, for less money (assuming SLC is still pricey, I haven't looked recently).