In our throughput test, the read performance curve is pretty erratic while the write performance drops quite considerably from 500MB/s at the 2MB block size to 387MB/s at 4MB and 383MB/s at the 8MB block size before recovering to finish the test run at 503MB/s. Peak reads come at the 1MB block at 497MB/s.
Be sure to check out our sponsors store EKWB here