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macrumors 6502a
Original poster
Jul 25, 2014
so if we look at the speaker chamber (or whatever it's called), if apple fill that with battery, the sound quality would be at least on par with air2/mini4, but a huge gain of battery capacity.
and actually 10-hour battery is pretty enough for most use cases, so apple could use those extra battery capacity to power an extra (or two?) cores in A9X, thus maybe 1.5x or even 2x of current A9X performance.

maybe apple is saving this for later, pro2?

Atomic Walrus

macrumors 6502a
Sep 24, 2012

Device is thermally constrained. Multicore score < 2x single core indicates throttling. Could be artificial TDP, but I doubt it. This is why the 3rd core of A8X was cut for A9X; Adding cores won't make much, if any difference in this situation.


macrumors 6502
Oct 23, 2015
It is interesting...where Samsung have gone more and more towards "many" cores with the latest phones using the Exynos Octacore CPUs (4 cores of the CPU at 2.1GHz), and Apple seemingly moving backwards with dual cores.

I haven't played with an Exynos, but I do recall on my quad core Snapdragon on the Note 4, that if I ran a benchmark over and would get slower and slower and slower radically due to heat throttling. Whereas on the iPhone 6S Plus (A9) it seems to hold steady. So it can give a sustained and consistent performance compared to some of the higher core CPUs out there
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macrumors 65816
Oct 26, 2004
Batteries are heavy, obviously weight was the limiting factor.
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