{
  "slug": "3d-xpoint",
  "term": "3D XPoint",
  "aliases": [
    "3D XPoint memory"
  ],
  "definition": "A cross-point non-volatile memory technology announced by Intel and Micron, distinct from NAND flash in cell physics.",
  "note": "3D XPoint is the underlying non-volatile memory technology announced jointly by Intel and Micron in 2015: a transistor-less cross-point array of selectors and memory cells addressable at bit granularity, positioned between DRAM latency and NAND economics. Intel productized it as Optane; Micron briefly used the QuantX name before exiting. Volume manufacturing ended after Micron’s 2021 exit from the technology and Intel’s 2022 Optane wind-down. Cards and modules that remain in the field are end-of-life media—useful historically and for understanding storage-class memory attempts, not as a current industry roadmap. Do not equate 3D XPoint with NAND cell types (SLC–QLC).",
  "status": "cancelled",
  "advantages": [],
  "limitations": [],
  "related": [
    "optane",
    "nand-flash"
  ],
  "supersedes": [],
  "supersededBy": [],
  "firstSeen": {
    "date": "2015",
    "citationIds": [
      "c1"
    ]
  },
  "lastSeen": {
    "date": "2022",
    "citationIds": [
      "c2"
    ]
  },
  "citations": [
    {
      "id": "c1",
      "title": "Intel and Micron produce breakthrough memory technology",
      "url": "https://www.intel.com/content/www/us/en/newsroom/news/intel-micron-produce-breakthrough-memory-technology.html",
      "accessed": "2026-03-26"
    },
    {
      "id": "c2",
      "title": "Intel winding down Optane memory business",
      "url": "https://www.intel.com/content/www/us/en/newsroom/news/intel-winding-down-optane-memory-business.html",
      "accessed": "2026-03-26"
    },
    {
      "id": "n3",
      "title": "Intel — Intel and Micron produce breakthrough memory technology (3D XPoint) press release",
      "url": "https://www.intc.com/news-events/press-releases/detail/324/intel-and-micron-produce-breakthrough-memory-technology",
      "accessed": "2026-10-07"
    },
    {
      "id": "n4",
      "title": "Intel — Optane business update (wind-down)",
      "url": "https://www.intel.com/content/www/us/en/support/articles/000091826/memory-and-storage.html",
      "accessed": "2026-10-07"
    }
  ]
}