I have noticed that the Quadrant scores are not really that good of an indication of the phones actual performance.
If you put your OS on your SD card, you will get AMAZING Quadrant scores, but your phone will be laggy as hell.
Other then the normal score with the better responsiveness.
I am currently running CM6.1.1-alpha8.2 with the patches for video and 3D
Before the patches I used to have a score of around 700 with an ok responsiveness from the system.
After i applied the patches, the interface became WAY more responsive, and the entire spica experience became way smoother and faster.
This cant be seen in the quadrant scores, because now its giving me around 500-600.
Summary: Quadrant scores.. meh, it a nice indication, nothing more.