All of us are familiar with HDD’s or hard disk drives. In fact, when we started our business in 2002, our servers were HDD based and rather slow. We then moved into SSD’s which are much faster than traditional hard drives.
We have now progressed to NVMe (Non-Volatile Memory Host Express) drives and they are a big deal in computer storage right now, and for good reason. Not only does an NVMe solid-state drive (SSD) leave most older SSDs in the dust, it’s also blazing fast compared to standard 3.5 and 2.5 inch drives.
SSD is the broad category of data storage medium that uses integrated circuits and flash memory to store data. NVMe, on the other hand, is the logical interface specification that is used to access a computer’s non-volatile storage media at high speeds. NVMe is primarily seen on PCIe-based SSD’s that are built in the M.2 size.
There is a huge difference in terms of raw performance when comparing a standard SSD with SATA protocol and an SSD that uses NVMe. Modern SATA SSDs can reach a maximum possible data transfer speed of up to 550MBps.
NVMe based M.2 SSDs, however, can go far faster. Different generations of drives, typically twinned with a generation of PCIExpress, have differing speeds, with the latest PCIE 4 drives reaching up to 7,300MBps in sustained read and 5,200MBps in sustained write.
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