Even if you just look at the progression in the OP (disregarding the initial reveal), and even just looking at these gifs (which of course masks any possible IQ differences), I still think there's a rather obvious downgrade going on from the first set to the final set. One example are clothes and hair, particularly of standard NPCs the player passes by. Another is significant LOD pop-in.
Obviously the difference isn't even remotely as huge in most situations as it is in that famous "car vault" comparison.
Obviously the difference isn't even remotely as huge in most situations as it is in that famous "car vault" comparison.