Biggest leap forward from a system to its successor

[Mar1217]

Imma gonna cheat because it's in the same generation as the N64 and it's only a 32-bit machine but the leap going from the PS1 to the GameCube is of a magnitude on a whole other scale.

Just look at the incredible shift from the original Resident Evil game from the original to the remake it had. The display in differences is still jaw dropping honestly.