The video and table below clearly demonstrate that PCIe NVMe connected SSD’s run much faster than do conventional SATA connected SSDs or SATA spinning disks.
This benchmarking was completed using a Dell Latitude 5490 laptop with Novabench free benchmarking tool. For comparison, we also included some benchmarks we completed last year on a nicely configured Dell Optiplex 5050 and a Dell Latitude 5480 (the 5490’s predecessor).
We explain that although the 5490 has a 2242 M.2 slot like the 5480, it is a PCIe slot and not a SATA slot (like the 5480). This means you can install an M.2 SSD into that slot but unlike the 5480, the 5490 can not use that as a Caching SSD.