Hi, Basically MyDigitalSSD BPX 120GB = 98USD Corsair Force MP500 120Gb = 108USD In both cases its full price including shipping, taxes and all that Corsair Force MP500 Series M.2 MLC SSD 120GB (256MB DDR3 Cache, says TomsHardware) MyDigitalSSD BPX M.2 NVMe MLC SSD 120GB (128Mb DDR3 Cache, Says Tomshardware) My main issue is that NO ONE, not a single web site benches anything less than 240, most do 240 or 500gb. I can find peoples benchmark results but not proper comparison, looks like Corsair is faster. P.S. If you want NVMe for cheap, Intel 600p 256GB is less than 100USD for people outside EU on Amazon UK, no taxes and shipping for such small item is low, . Also Amazon UK has sale if you fill 30GBP giftcard you get 5GBP extra. Intel 600p 128Gb is almost twice cheaper but its as slow as SATA, but has maybe better reads.
600p is only good if you need to use an M.2 PCIe interface, in case you dont have spare SATA ports. it's rarely faster than SATA. Ich you want performance, go with a NAND manufacturer's model. Like WD/SanDisk, Intel, Toshiba, Crucial/Micron, Samsung or SK Hynix.
Eventually I ordered Corsair Force MP500 120Gb for OS only drive to replace my 850EVO 256Gb The 600p is dirt cheap, its still faster than SATA6 SSDs and good as Games SSD for example.