Yeah my memory is a little fuzzy lol. I had remembered the number structure differently in that the middle number 8X8 was for the generation, but was the last one. So generations were 805, 806, 807 and 808 etc.
What I meant to say was, excluding audyssey, the 808 was better on the bench. For some reason I seem to remember that after the 805(which I recall was a beast) the 8xx series Onkyos started going downhill in bench tests despite their ratings. No matter now I guess, mine’s long gone. Served me well.