Dude ARM's right outside the front door. My iPad2 can do pretty much 95% of what everyone uses a computer for, web, email, youtube, hd video, games. It generates zero heat, its never warm, it never warms up, it requires zero cooling. If you want to encode video, or whatever that is going to take more power, throw a couple more chips in there
Because obviously all the problems with parallele execution go away magically because the chips are ARM based right ?
ARM isn't even near the door sorry. If all you do is web/e-mail, I got news for you, Intel is also in that market with their Atom line-up, and so is AMD with their APU line-up.
Then there's that whole pesky issue of applications being compiled and written to x86_64 and x86 and not ARM, that's a major stumbling block right there...
Apple owns the rights to both the ARM RISC and PPC RISC through their aquistion of PA Semiconductor,
PA Semiconductor is a processor design firm that is fabless. They owned no IP over ARM or PowerPC, which are still owned by their respective companies. I think Apple, a co-founder of ARM, sold their shares long ago.
You don't quite seem to grasp what exactly ARM is.
they no longer need to pay IBM or Intel or AMD any licensing since they can make/design there own chips
Apple does not pay Intel for a x86 license. I don't know what you think they license from AMD and IBM. Are you confused ?
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PPC smoked x86 so bad you must have never tried PPC chips before. The G4 was as fast as most Pentium 4
Sorry, I don't drink the Apple kool-aid. The PPC chips were always pretty much on par with their Pentium counterparts, Altivec having a great rival in MMX, then SSE instruction sets. It had a slight edge for a while there in floating point performance, which ended when Intel switched their consumer line-up from the P5 architecture (Pentiums) to the P6 architecture previously used in workstation grade CPUs (the Pentium Pros) with the Pentium II.
Mind you, the G3, G4 and G5 chips were not bad at all, they just weren't "smoking" the x86 chips at all. That was pure FUD on the part of Apple, because, well, they were using the PPC chips and needed to convince buyers there was a reason to sacrifice the commodity of x86.
As Intel released the Pentium IIIs and the Pentium IVs, the Centrino mobile platform, they pretty much killed the PPC architecture, which is what led Apple to make the switch as IBM/Moto couldn't deliver anymore.