Which generation was a bigger leap in visuals 5th to 6th or 6th to 7th?

[VGKing]

SqueakySamurai said:

Hopefully these pictures will put the jumps into better perspective.

I tried to pick the best-looking FPS of each gen, I may have missed some games.

That BF3 pic is definitely from the PC version. I doubt they released any PS3 or 360 images.