Interesting how you did the comparison.
RD600 - Slack timings, high FSB
975 - Tight timings low FSB
965 - Tight timings high FSB
The reason 965 can keep up is because of the increased FSB/timing ratio vs the 975 and the 975 wins out in 01 because of timings.. (obviously 01 is way more hardware dependant). Better timings = better 01 score any day. Ask hipro ;) . Not to mention the 4MHz increase in cpu speed.
Anyways, thanks for sharing :) . I think RD600 will be my conroe board.