Theoretically (other than the possible differences in the OS revisions) it should be similar.
The memory isn't really going to make the phone faster unless for some reason you managed to get the 256mb on the 8530 to a really low level and didn't on the Bold.
It's heaver due to heavier parts (the curve is all plastic and very light) larger screen ,larger battery, flash, etc etc...
06-23-10 01:56 PM