Unless you are taking about the 1080ti version then yes. Only a few fps. Most benchmarks shows a 10-15fps difference between both cards and the improvement is something like 20-30% more with 1080.
For 1080p gaming. It's blah. The 1080 really shines in 1080p with high herts like 144 or 4k etc... that is the weakness of the 1070 basically.