I mean higher numbers!
Everyone knows the higher the number the more good at stuff it is.
the first number is for the series, so in this thread he is discussing a card in the 600 series and one in the 500 series. the 580 is like the eighth? card in the 500 series, while the 660 is only the sixth? card in its. so the 580 could be better, depending on idk what
but it isn't in chronological order