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If you are building a PC, you probably have already picked your motherboard, CPU and RAM. But what about the NVMe SSDs? These are storage devices that use flash memory to store data. NVMe stands for Nonvolatile Memory Express, and SSD stands for Solid State Drive. NVMe SSDs are faster, quieter, more reliable, and more energy efficient than other storage options. However, picking the right NVMe SSDs for your PC can be tricky because you need to consider myriad factors. You might also get confused by their technical terms or even by marketing labels like creator or gaming. This guide will explain the basics of NVMe SSD and what a new buyer should look out for.
How do SSDs work?
To comprehend the magic behind NVMe SSDs, let's zoom in on their internal structure. NVMe SSDs are a type of storage device that consists of three types of chips: NAND flash, Cache and DRAM memory, and a controller. NAND flash is the main storage area, with cells that can hold one or more bits. Cache memory is a temporary buffer that speeds up data transfer. The controller manages data flow and wear levelling of the cells. Each chip has a…
NVMe (non-volatile memory express) is a transfer protocol created to accelerate the transfer speed of data in solid-state storage devices. NVMe is used in both enterprise and client systems.
As solid-state technology became a preferred medium in the storage market, it quickly became clear that existing interfaces and protocols -- such as Serial ATA (SATA) and Serial-Attached SCSI (SAS) -- were no longer suitable in data center environments. In early 2011, the initial NVMe spec was released, with nearly 100 technology companies involved in its development.
NVMe is commonly used for solid-state storage, main memory, cache memory or backup memory. NVMe works by communicating between a storage interface and a system central processing unit (CPU) through a high-speed Peripheral Component Interconnect Express (PCIe) bus. The NVMe protocol was designed for use with fast media. The main advantages of NVMe-based PCIe solid-state drives (SSDs) over other storage types are reduced latency and high input/output operations per second (IOPS).
NVMe has also been a key enabler of evolving technologies and applications such as the internet of things, artificial intelligence and machine learning, which can all…