If you look at the revised chart, the story is basically that response times keep getting quicker among flagship devices... but only from Apple, Samsung, LG, and Sony.
Oh my God. I don't feel a difference between iPhone 5 and Nexus 7. I should get my fingers checked.
Fixed.The Note3 is the fastest with TouchWiz gimmicks disabled, followed by MS surface pro, and iPhone 5S.
However, everytime people bring up GPU, I call BS. Windows Phones were responsive and fluid with 1ghz cores and Adreno 205 GPUs. You do not need some state of the art GPU to make the UI smooth. Hell the iPhone 4 and its weakass GPU achieved 60 fps smoothness long time ago. It's only recent OSes that have become more bloated show the age of that phone.