harcosparky
macrumors 68020
As far as I know there has never been any difference between the midrange MacBook and the BlackBook except color and a larger hard drive. Maybe you were comparing yours to the low-end MacBook when you bought it.
I do believe when first introduced there was a difference in CPU/HDD/RAM between the mid macbook and the black one.
How could you check that out?
Once you go black... you never go back.