I ran armbian-config's benchmark on my Odroid HC2 with Armbian and OMV5. I had applied the Optimized Board Configuration with armbian-config for the HC1/HC2. For those curious with the same or similar hardware, this may be useful as a reference point.
It is interesting to note that the passively cooled CPU seems to throttle to 1600-1700 MHz, while it is nominally 2000 MHz. I am also using the optional plastic case.