The new wave of memory-based storage blows away the older generations.

NVMe is no longer a nice-to-have storage technology. If you’re shopping for a new PC, it’s a feature you should actively seek out. Moreover, if your PC is of fairly recent vintage, you should upgrade to NVMe. Here’s why.

What it is

NVMe is a communications standard developed specially for SSDs by a consortium of vendors including Intel, Samsung, Sandisk, Dell, and Seagate. It operates across the PCIe bus (hence the ‘Express’ in the name), which allows the drives to act more like the fast memory that they are, rather than the hard disks they imitate.
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https://www.pcworld.com/article/2899351/everything-you-need-to-know-about-nvme.html