NAND as an SSD
Thanks to the availability of large capacity memories for reasonable prices, NAND flash is used in solid state drives (SSDs) within many computing platforms, such as laptop and desktop PCs, and mass storage devices such as RAID drives as an alternative to hard disk drives (HDDs).
Flash memory has no moving parts, so is more durable than an HDD. It also consumes less power and generates less heat.
Flash can also be accessed more quickly, as reflected in a drive’s I/O per second (IOPS) figure. HDD performance is typically a few 100 IOPS. Flash access is in the tens of thousands of IOPS.
Here’s an overview of SSD versus HDD.
Above, a comparison of solid state and hard disk technologies. SSD is best for storing data that is accessed frequently, such as the operating system and applications of PC or laptop, for example. HDDs are most frequently used as long-term mass storage devices.
Note, SSDs will either use NAND or NOR flash – and if you’d like to learn about the differences, please refer to our What is NAND flash memory? guide.
SSDs have a very similar (and often identical) format to their hard-disk counterparts. Typical interface options are SATA III, PCIe, M2 and NVMe.