Chrome has a very parasitic relationship with it's host OS's. Stopped using it when it halved the amount of hours a brand new MacBook lasted on a battery. My apologies for the webdevs that have to maintain Safari compatibility for me but the difference is just too big to ignore.

While it probably still loses to Safari in a Mac battery benchmark overall, Chrome is much better today in this regard than it was a few years ago - the gap isn't what it once was.