@scumble:
The graphical performance of the chipset is ofcourse the same. Though keep in mind that when using something that requires some cpu performance such as the Workbench or a flight-simulator it is not the performance of the chipset that is holding it back and making it feel slow, it is the performance of the cpu. As I said earlier, it literaly flies when using an accelerator, especially when using the Workbench - take my word for it. If you yet havent tried out an accelerated Amiga, it is something you need to write down on your "todo-list" :=).
/Patrik