As someone who has both the Note 8, and a 7+ with iOS 11, my Note 8 is pretty dang smooth whereas my 7+ stutters with so many simple app animations.
But hey, if you want to run geekbench all day, feel free.
The worst part is that people confuse what the CPU actually is used for. The iPhone is more than twice as fast at rendering 4k video. That is a combination of GPU strength and more importantly the sheer terrible that is OpenGL in comparison to Metal these days.
CPU factors in, sure, but not as much as people seem to believe.