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by rsynnott
4278 days ago
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> No it wasn't. A57 wasn't actually done when Apple outed Cyclone. Apple clearly ran with early aspects of A57 (your disingenuous misreading about ARMv8 being ignored) In April 2013, ARM announced that the first production A57 chip had been fabbed and tested at an unspecified prior date: http://www.arm.com/about/newsroom/arm-and-cadence-partner-to... > At exactly the same timeframe, nvidia, Qualcomm, and others had as many details of A57 and ARMv8, and none of them ran with it. Google is showing me lots of documents published by ARM on ARMv8 from 2011. By Oct. 2012, Samsung had licensed the A53 and A57 core designs: http://www.techhive.com/article/2013298/arm-introduces-64bit... . They didn't have 'many details'; they had the design itself. > Apple clearly ran with early aspects of A57 Which ones? I mean, Cyclone was wider than A9, but that's hardly a shock. My impression is that A57 isn't, in any case, really suitable for phones except in a BIG.little configuration. |
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http://mobilesemi.blogspot.ca/2014/09/apples-64-bit-processo...
By Oct. 2012, Samsung had licensed the A53 and A57 core designs: http://www.techhive.com/article/2013298/arm-introduces-64bit.... . They didn't have 'many details'; they had the design itself.
ARM designs are like a GIT repository, and the AXX continued having revisions and changes through 2013. Running with it early and you are bound to either go on a detour or end up with a noncompetitive variant.