You must distinguish what variety of M.2 you refer to. Most, though not all, modern mainboards support both SATA M.2 SSDs and NVMe (PCI Express link) M.2 SSDs. There is no change in performance ...

Below, we’ll go over what NVMe, SATA, and M.2 mean in SSDs, how they compare to each other, and which one you should pick to ...

As this easily overcomes the limiting factor of SATA in terms of transfer speed, M.2 has quickly become established for internal SSDs — for example in particularly flat notebooks (ultrabooks).

M.2 NVMe 1TB vs ssd sata 3 1TB vs hdd 1TB - Game Loading Times Ad - 0:00 Games : Horizon Forbidden West - 0:06 Starfield - ...

since many of the best M.2 SSDs aren't that much faster than the best SSDs using a standard SATA III interface, but there are definitely some high performance storage devices to be had for those ...

The M.2 (pronounced m dot two) form factor, introduced in 2012, was designed to replace the mSATA interface, a version of the SATA interface for solid state drives (SSDs) in mobile devices.