A8 processor: What’s to come
With the latest generation of mobile processors now on show at MWC, my expectations of what’s to come from apple’s mobile devices this year have been muddled.
The A7, like the A6 before it, saw a 2x increase in job frequency.
But now, looking at what has come out of WMC, the rate of increase in their performance, processing speed and power efficiency hasn’t leapt anywhere near like it has in the past few years. Where there once was 100% (2x) "improvement", there’s now 20%. The "plateauing" of benchmarks this year is completely unexpected.
(don’t quote me on figures)
With the A8, i’ve heard expectations of a significant downscaling of the 28nm architecture to 20nm and extended redesign of the register positioning . What kind of performance improvements can these changes create?
Also, with apple continuing to employ more programmers, experienced with assembly, they are without a doubt looking to move more processes to lower levels (even hardware) in order to boost efficiency. To what extent could this be viable due to its proprietary nature?
I’m also wondering how far they could boost the range of functional clock speeds to provide the ultra low-power sleep mode.
Is there a plateauing effect coming to the development of ARM architecture?
What do you expect to see from the A8 generation?