LAST EDITED ON Sep-23-15 AT 08:59AM (MST)[p]There are accepted standards for rating bow speeds.
AMO, Archery Manufacturing Organization, measures the speed at 60lb. pull, 540 grain arrow and 30 inch draw length.
IBO, International Bowhunters Association, measures the speed at 70lb. pull, 350 grain arrow and 30 inch draw length.
Archery manufacturers should be using one of these standards to rate the speed of their bows.
I don't know which one is the fastest but if you do a little research on the major manufacturers you could probably get an idea. Just understand that you may be comparing AMO speeds with IBO speeds which aren't measured the same.