CPU and GPU is built within the same chip, crafted with same process (14nm or 16nm), by the same manufacturer, so WHAT makes the difference? WHY the power usage of GPU is almost identical but CPU is not?
And for god's sake you too should read another test at
https://forums.macrumors.com/threads/iphone-6s-tsmc-samsung-case-study.1927888/. Same
Geekbench test, different settings (leave screen and LTE/BT on), and the battery life is
almost identical.
Geekbench, screen off, LTE/BT off, Samsung version draws 28% more power comparing to TSMC.
Geekbench, screen
on, LTE/BT
on, Samsung version draws
the same amount of power as TSMC.
I can't explain this phoneme but apparently something in '
normal' Geekbench test (that is, turn off screen and networking) triggered a special ultra-power-drain operation mode on Sammy's A9.
I'd recklessly forecast that you'll
NOT experience 28% of battery difference if you don't turn down screen brightness and turn on airplane mode at the same time, while doing CPU intensive tasks.