As a non-volatile memory, 3DXPoint has a number of features that distinguish it from other currently available
RAM and
NVRAM. Although the first generations of 3D XPoint were not especially large or fast, as of 2019 3D XPoint is used to create some of the fastest
SSDs available, with small-write
latency (the hardest type of task for most SSDs, sometimes described as "worst case" or "murderously" hard
[6]) being an order of magnitude faster than any preceding enterprise SSD. As the memory is inherently fast, and byte-addressable, techniques such as
read-modify-write and
cachingused to enhance traditional SSDs are not needed to obtain high performance. In addition, chipsets such as
Cascade Lake are designed with inbuilt support for 3D XPoint,
that allow it to be used as a caching or acceleration disk, and it is also fast enough to be used as non-voltatile RAM (NVRAM) in a DIMMpackage.