Murder it at what? Games? No
Agreed. Haswell-E doesn't clock as well as Skylake, uses more power, and is based off an older microarchitecture with less IPC. Lets not forget, memory clocking on Haswell-E is a fickle thing and you rarely can get 3600MHz or anything like that. On Z170 its often as easy as setting XMP to enabled and being done with it.