alt Hacker News> Optane memory
Which “Optane memory”? The NVMe product always worked on non-Intel. The NVDIMM products that I played with only ever worked on a very small set of rather specialized Intel platforms. I bet AMD could have supported them about as easily as Intel, and Intel barely ever managed to support them.
The consumer "Optane memory" products were a combination of NVMe and Intel's proprietary caching software, the latter of which was locked to Intel's platforms. They also did two generations of hybrid Optane+QLC drives that only worked on certain Intel platforms, because they ran a PCIe x2+x2 pair of links over a slot normally used for a single X2 or x4 link.
Yes, the pure-Optane consumer "Optane memory" products were at a hardware level just small, fast NVMe drives that could be use anywhere, but they were never marketed that way.