2 ms·

(ST-) MRAM sounds much beter than 3D Xpoint to a layman like me (speed and endurance like DRAM, so better than Xpoint), and seems to ship already from a small c

• cestith 9y ago
  The guy is leaving Intel, which was working on Xpoint during his employment there. Regardless of the relative merits, he likely had far more exposure as a file systems guy at Intel to storage technology being developed and sold by Intel.
• PeCaN 9y ago
  Because 2MB of MRAM for $43¹ is not exactly game-changing.² 3D-XPoint is more like a much faster SSD than real NVRAM. Everspin and other true NVRAM companies are trying very hard and making huge strides, but scaling density up to expected multi-gigabyte sizes is really hard. 3D-XPoint could be seen as a sort of stopgap for a few years or decades while NVRAM matures. That said, I think one of the NVRAMs—MRAM looks the most promising—will get there eventually, and it will change everything. I'm tinkering on a hobby OS to take advantage of single-level storage and cache-coherent interconnects like CCIX and GenZ. --- 1. https://www.digikey.com/products/en/integrated-circuits-ics/memory/774?k=&pkeyword=&pv142=1501&FV=fffc0333&mnonly=0&newproducts=0&ColumnSort=0&page=1&chp=0&quantity=0&ptm=0&fid=0&pageSize=25 https://www.digikey.com/products/en/integrated-circuits-ics/... 2. They announced 64MB modules a few months ago, but AFAICT those are yet to hit the market.