M.2 NVMe vs SATA vs USB SSD Benchmarks
Test PC: Alienware Alpha R2 : Intel i7 7600T, 16GB DDR4, Win10
Stock internal M.2 NVMe 250GB SSD:
Sandisk 480GB SATA3 SSD Plus installed internally:
Kingston 120GB SSD NOW 300 V installed in a ORICO 2139U3 USB 3.0 Transparent 2.5″ SATA SSD HDD Hard Drive Enclosure Case:
And finally a Sandisk Nano USB3.0 64GB stick: