What cpu? The 1070 can likely achieve those framerates but only if the cpu is powerful enough to keep up with it.
I have a 4790k and plan to oc it since i also got a h100
Oh yeah you are good. Here are benchmarks of gta v and witcher 3 maxed with a email@example.com, the 4790k should perfom similarly or possibly better with higher clock speeds. Also these are the launch drivers for the 1070, the current drivers may allow the 1070 to perfom better than what is shown in these benchmarks.