Stuffing more chips onto game cartridges was a thing that happened with the SNES quite a bit, but really only happened with Virtua Racing on the Genesis/Mega Drive. If you look at early titles for a particular platform vs the later ones, the later ones almost always look/perform better because the developers learned how to milk more resources out of the platform. An example from the Playstation 1 era is Naughty Dog Studios, as seen here in this old HN thread: https://news.ycombinator.com/item?id=9737156