Incorrect real speed of SSD is shown about crystaldiskmark HOT 1 OPEN

I concur with ukushu. I have also learned the hard way that the data sheet SSD speed and the "measured" values of industry standard benchmark tools are showing wrong numbers if sustained write rate of SSDs are important. These values are much much lower than the advertised values are can easily be a factor 10 off.
I have created my one benchmark tool (FileStress) which is a command line utility which can fill up your SSD or write as long as you want to new files. This also takes into account OS File System issues which can e.g. hit you when you store many files in a single directory which is also something to be aware of.
When I find time I will upload it to GitHub

from crystaldiskmark.