5 ms·
Because they have moved past the easy parts of optimization. Apple's optimizations still have thermal throttling issues (sustained use of an A11 will not beat a
by zitterbewegung 9y ago
Because they have moved past the easy parts of optimization. Apple's optimizations still have thermal throttling issues (sustained use of an A11 will not beat an Intel chip due to better cooling and IPC).
Compared to other ARM licencees they do beat the pants off of. This is probably why Apple put in a T1 chip and a touch bar in the Macbook Pro and the T2 chip (dedicated power module) in the iMac Pro. They are prototyping the individual pieces with Intel as the main processor so that they can attempt to swap the chip in 2020.
EDIT: nitpick on t1 and t2 chips.
- madeofpalk 9y agoFWIW, the TouchBar MacBook Pros have the T1, and the iMac has the next generation T2 chip.
- zitterbewegung 9y agoThank you for correcting me :)
- madeofpalk 9y ago:)
- endorphone 9y agosustained use of an A11 will not beat an Intel chip due to better cooling and IPC In an iPad profile sure the heat dissipation is very limited. With even a basic passive heat sink (not just a spreader, but actual fins for surface area), much less active cooling like most laptop and desktops use, and the heat profile dramatically changes. This change was inevitable -- recent A## chips have been just astonishing for passively cooled chips. The state of the art in binary translation, and the support for cross compiling across architectures, makes this a very doable transition.