Comment by kypro
The graphics bump you'd see from next gen systems prior 2010 was massive. So big in fact that it would unlock new genres of games which weren't previously possible.
ps1 > ps2 was pretty huge too because I'd argue the ps2 marked the first generation of consoles where games could move away from pixelated cartoony characters and into photo-realistic graphics and just about pull it off.
Today you get better lighting and shadows, or slightly higher FPS which is nice, but it doesn't really change the types of games you can make in the way the ps2 did.