tensor cores are needed for Deep Learning, so that Google is able to analyze the content of your photos right on the device besides making fake backgrounds or image editing. Otherwise zero need for Tensor cores. As the new phones come with it, i was thinking if possible to disable it. Probably this would mean some hardware close language tweak. Anyways after my last battery test i am totally fine with the 7 pro as is now, 20 hours battery with telegram and signal without google framework - of course.