Could be the A-series finally starting to run up against Moore's Law. They spent years catching up to Intel and here we are. This especially makes sense given the larger jump in GPU performance, which typically seems to outperform CPU gains in recent years. Alternatively Apple could be focusing more on battery life improvements since we are moving to a smaller 7nm process.
Either way I hope this means 6-8GB of RAM in the new iPad Pro.
All you ARM-based Mac fans better remember this when you criticize Intel for its (lack of) speed gains; although the 8th Gen CPUs are seeing significant performance gains. Apple will face the same hurdles as Intel as CPU frequency increases. There is no panacea.
4GB of RAM is the most interesting take and will be the most beneficial. Improved processors by 10%? Meh, I don’t get excited about that anymore. There’s barely any difference between a 6S and an 8 in terms of speed. The RAM though makes the real difference, can never have enough of that. The more of it the better!
I couldn't agree more.
Alright, let's commence Stage 2: Put the A12 in the MacBook non-Pro!
Before you get too ecstatic, read
this article..... In short, ARM and RISC -based CPUs are optimized for different workloads and while some tests demonstrate the ability of ARM to match or slightly surpass RISC/Intel CPUs, when Intel CPUs outperform ARM, it is always by a wide margin.
There are at least three possible outcomes in the CPU race:
1. physics and process limitations will mean that Apple's ARM-based CPUs will catch up to Intel, but encounter the same challenges and limitations. (My position)
2. Apple will surpass Intel's CPU development at least in part due to lower cost of production (big assumption)
3. software will delimit the platforms more than hardware, segmenting into Android, Windows, and iOS/ARM-based Macs (also my position).
My concern with the last option is the significant drop in QC/QA in Apple's recent software--both iOS 11 and macOS 10.13.
A mobile CPU can only get so fast while size, heat, and battery life must be taken into consideration. The fact that the A12 outperforms the Core i7 CPU in my 2012 15" Retina MacBook Pro while using a fraction of the power is very impressive.
Links?
Reality check: We really don't know how an ARM-based Mac will perform, so the positions which I listed above are really the assumptions (me included) under which we all work.