Out of curiosity, I installed Quadrant Standard benchmark and ran it. Result is 961 - 961 whats, you may ask? I haven't a clue. But according to the app, the Nexus one scores lots more running 2.2+ whatever that may be. Overclocked perhaps?
Anyhoo... the result for the SGS is slightly higher than the vanilla version so I'm guessing the Froyo ROMzilla I'm using is a little more optimised in some way.
Anybody else benchmarked their modded SGS?