Never can have enough 'tools', however ... In FireFox 3.05 and Mozilla 1.7.13:
crappy interface - does not list chipset, mobo or ram on the 'mouse-over' - can only do 2 CPUs at a time, or, when when you post by benchie for all CPUs bars are not color coded - only one of 31 'comparisons' worked correctly for me in head-to-head (cinebenchr10-multi) - bars were 'overlayed' or stacked on top of one another
In IE:
only one of 31 'comparisons' worked correctly for me in head-to-head (cinebenchr10-multi) - bars were 'overlayed' (better than Firefox-were not on top of one another) - listed chipset, mobo, ram, etc on the 'mouse-over' but it was funky (had to give it 2 or 3 mouseovers) - had to 'launch' 7 activeX controls (not sure how many were associated with the chart)