Micron Technology partnered with Intel back in 2015 to develop 3D XPoint, a new type of memory that has the storage capability of NAND flash but speed almost equal to DRAM. However, the two companies parted ways in 2018 before either of them could bring a product to market. They had completed the first generation, agreed to work on the second generation together, and decided to part after that and do their own thing for the third generation.
Intel released its product under the Optane brand name. Now Micron is hitting the market with its own product under the QuantX brand. At its Insight 2019 show in San Francisco, Micron unveiled the X100, a new solid-state drive the company claims is the fastest in the world.