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A comment on The Intel Optane SSD DC P4800X (375GB) Review: Testing 3D XPoint Performance. Parent comment

Re:The Intel Optane SSD DC P4800X (375GB) Review: Testing 3D... by Crespyl on Thursday April 20, 2017 @05:09PM (#14160941)
The reason you would use this over RAM is persistence, it doesn't need to stay powered to keep the data.

If all you need is a massive amount of temporary storage for some algorithm, you'll still need RAM, but if you want a stupidly fast backing store for a huge amount of source and then output data, this is pretty incredible.

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Re:The Intel Optane SSD DC P4800X (375GB) Review: Testing 3D... by Dylan16807 on Thursday April 20, 2017 @05:35PM (#14161151)
When your computation fits in RAM, what's the point of a lower latency backing store that does fewer gbps per dollar?
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Re:The Intel Optane SSD DC P4800X (375GB) Review: Testing 3D... by frozenport on Friday April 21, 2017 @04:45PM (#14169303)
Many of these systems have write caching enabled, which means that on critical power failure, some data will be corrupted. And often such system have back up supplies.

Let's be clear here. The real reason people used this stuff was that it was 3x/4x cheaper than RAM.

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