I only get 2644 in CM7 in quadrand free and advanced quadrants editions.
But I only got 1600 in Infuse v2 Gingerbread and in stock Gingerbread I get 1100, Stock Froyo I got 900.
Perhaps all of these things are only good for a reference point
To be fair, this is using a 1600mhz overclock kernel. Stock at 1200 on cm7 is around 2600+ or so.