On Sat, Aug 06, 2016 at 04:25:13PM +0100, Luke Kenneth Casson Leighton wrote: > did i hear right that there's also a core design difference between > the A7 and the A53 which results in a performance/watt loss of around > 15%? so you're actually *worse off* going to 64-bit at the moment, if > power (battery life) really matters. i think it was on anandtech or > something.
Well the 64 bit equivalant of the A7 would be the A35. The A53 is higher level, more like an A9 I would think while the A57 is A15 type of performance level and A72 probably maps to about A17, or maybe even better. Certainly in terms of MIPS/MHz, the A53 is between the A8 and A9, while the A57 is A15/A17 level, and the A72 is quite a bit faster than the rest. Apparently there is an A73 coming that adds another 30% performance over the A72. The A35 is supposed to be 6 to 40% better performance than the A7 at the same power. -- Len Sorensen