Mennyi 2013-ban 31%?

Andrew Cunningham remek összefoglalója az Ars Technicán arról, hogy a mobil processzorok hova fejlődnek, mit tudnak és mit jelent valójában ma 31% teljesítmény növelés (ez a szám csak azért van idetéve, mert megjelent az Appleblogon, hogy ennyivel lesz gyorsabb az új iPhone):

It doesn’t sound like a big generational jump given the 100 percent leaps between the A4 and A5 and the A5 and A6. Assuming these numbers are correct, it’s a safe bet that Apple will be continuing to use a dual-core CPU configuration in the A7 rather than moving to a quad-core configuration. (…)

It’s larger than the performance jump that Intel delivered between Sandy Bridge and Ivy Bridge or between Ivy Bridge and Haswell—the days when CPU performance could double in a single year have long been over for desktop and laptop CPUs. (…)

[I]t’s simply not possible to continue with the kind of performance increases we’ve seen since the iPhone launched in 2007 without running up against power, thermal, and space constraints. (…)

Apple’s tight integration between hardware and software can help mask its generally lower CPU performance relative to competing Android handsets. If a particular thing runs poorly on an A4 or an A5, Apple can easily implement a fix that smooths things out for that particular device. This is what keeps devices like the iPad mini feeling responsive despite using an SoC that’s two-and-a-half years old—such is the benefit of supporting a limited pool of hardware.