If you look at two examples, they may have the same "architecture", but on one, more of the architectural blocks are on-chip, and on the other, less. I don't th

If you look at two examples, they may have the same "architecture", but on one, more of the architectural blocks are on-chip, and on the other, less. I don't think what is on or off the chip really changes the architecture, though it would probably change the performance, and the pin boundaries do drive other system considerations. But otherwise, the architecture is the architecture, or am I looking at it wrong?