> updating the firmware didn't fix the issue that my 980 Pro NVMes (all 4 of them) only have a write speed of ...
In order to see spec sheet read/write speeds you can/should bypass the filesystem and the buffer cache. On Linux you can write directly to the device node (make sure to enable O_DIRECT and make your write sizes big enough).
In order to see spec sheet read/write speeds you can/should bypass the filesystem and the buffer cache. On Linux you can write directly to the device node (make sure to enable O_DIRECT and make your write sizes big enough).
EDIT: added a quote to clarify context