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A Close Look At Apple's A4 Chip

PabloSandoval48 writes "Apple's A4 processor is heavily influenced by Apple's long-established relationship with Samsung and represents an evolution rather than a revolution in circuit design. A team of experts takes a look at the evidence on A4 in an attempt to determine its origins and the influence of recent Apple acquisitions in the area of chip design."

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  1. Not interesting. It's a consumer-grade processor. by Anonymous Coward · · Score: 4, Insightful

    I don't see what's so interesting here. It's a standard, general-purpose, consumer-grade embedded processor. There are billions of these around in all sorts of devices.

    Is this one of those things that people get excited about just because it's from Apple, but is otherwise totally unremarkable?

  2. Re:Not interesting. It's a consumer-grade processo by Anonymous Coward · · Score: 5, Insightful

    I don't see what's so interesting here. It's a standard, general-purpose, consumer-grade embedded processor. There are billions of these around in all sorts of devices.

    Is this one of those things that people get excited about just because it's from Apple, but is otherwise totally unremarkable?

    I think it is just because it is Apple. For some reason, the thought of Apple being involved in processor design makes these people jizz in their pants.

  3. Re:Short version for the non-experts among us by marcansoft · · Score: 4, Insightful

    In other words, it's just another Samsung processor like the ones in previous iPhones, which were already Apple-custom anyway. A4 is just marketing. Apple has been using more and more custom application processors for a while now; they've just decided to flip the PR switch and use it as an advertised feature.

  4. Born of desperation by wandazulu · · Score: 4, Insightful

    Say what you will about the position Apple is currently in, but they have been screwed over many times by other companies (Microsoft with Office, Adobe with Premiere, IBM with PowerPC @ 3ghz), and they figured that it was critical to their success that they take control of their own destiny.

    What they've done is made a streamlined version of an ARM processor that is useful for their current needs; they do not need to "keep up" with anyone in that they get their processor to do what they want it to do for this particular need. If anything, by not having to cater to anyone but themselves, they have the ability to have custom hardware, but still based on the widely-used ARM architecture, so they don't have to completely re-tool when they come up with an A5 or A6 or whatever. Jobs himself said that they are not in the business of licensing their technology. You won't see an A4 being offered in lots of 100 to anyone for other purposes, it's a chip for Apple and their products only.

    I was wondering too about the wisdom of this move, but it shows that they are not going to hitch their wagon to anyone's horse but their own, and that they have the ability to modify the horse to pull whatever load is necessary at that moment, a new iPad, new iPhone, AppleTV, whatever.

    1. Re:Born of desperation by BlueStraggler · · Score: 3, Insightful

      IBM's Power line of processors isn't the quite same as the PowerPC line. You can't really squeeze a 6 GHz mainframe core into an iBook.

  5. Re:Total Vertical Integration - Scary by Lunix+Nutcase · · Score: 4, Insightful

    What boggles the mind is why can't they pay a few more bucks to the people working in Foxconn(who are jumping off buildings) who actually make these iDevices?

    Because Apple isn't responsible for the salaries of Foxconn employees? And why do you single out Apple in contrast to the dozens of other huge companies that contract with Foxconn like Microsoft, Logitech, Intel, Cisco, Dell, Nokia, HP, or Sony?

  6. Re:Hubris. by Lunix+Nutcase · · Score: 3, Insightful

    They're going to have to spend money keeping the A4 competitive with other ARM SoC offerings from companies who make them for a living.

    Why? It's not as if they are marketing the A4 to other companies in competition to those other chips. The A4 is being built for themselves only so it only has to be enough to fit their needs.

  7. Re:Not interesting. It's a consumer-grade processo by Cochonou · · Score: 3, Insightful

    Well, if it's off-the-shelf, where can I procure it ?
    This SoC is no more off-the-shelf that any ASIC, even if built from already-designed IP blocks.

  8. Re:Hubris. by droopycom · · Score: 3, Insightful

    But they are not going to have to spend time and money trying to design a chip that will be able to be used in 10 different products.

    See, from my own experience, SoC companies pack more features in their SoC so that they can fit in several products or markets. Apple will only worries about their own devices.

    In short, Qualcomm is trying to please 5 or 6 different handsets manufacturers with their snapdragon, each with their own ideas and requests, and they will have to make compromise, while Apple can just focus on getting the exact chip they want for their products.

  9. You're spreading something for sure by SuperKendall · · Score: 4, Insightful

    If Apple is so innocent, why do you even have to mention the names of the other companies???

    If Apple is so guilty, then why NOT mention those other companies?

    You have to answer that first before you are allowed any more paranoid rants. You are trying to defect all ills of the world to fall upon Apple's shoulders. Has any other company but Apple in fact even offered a bonus to workers who work on the products the companies are having produced there?

    Even if all of them are evil, Apple is less so if only because of that one aspect. Yet, you single Apple out - so obviously you have some other motive in mind rather than Foxconn worker well being. It's pretty sick to take advantage of Chinese suicides to further your own holy crusade against Apple (and Apple only).

    --
    "There is more worth loving than we have strength to love." - Brian Jay Stanley
  10. Re:Not interesting. It's a consumer-grade processo by Darinbob · · Score: 4, Insightful

    Plenty of companies do this. They do it sometimes without being experts in processor design, by having others help them customize off the shelf processors. They're just taking an ARM core, and then adding stuff on the periphery. They're not changing the core itself; not optimizing the pipelines, not adding instructions, etc. It's not even to the level of re-design.

    Processors chips are basically at the stage now where you can customize them. This is analogous to me going to a store and building my own PC from off-the-shelf boards and parts; or maybe going to a web site and choosing which components I want in my PC.

    This article is of interest in terms of the detective work and reverse engineering though. But it seems uninteresting in terms of it being about Apple.

  11. It's all marketing by wiredlogic · · Score: 3, Insightful

    Look at all the hype the shiny "A4" name has garnered them despite it being essentially made with commonplace cores that are already widely used. The switch to Intel took away the special "uniqueness" factor that Macs had on 68k and PPC. This is just a marketing ploy to convince the fanboys that these new platforms have something extra special that you can't get with any old beigebox phone.

    --
    I am becoming gerund, destroyer of verbs.
  12. Re:Total Vertical Integration - Scary by joh · · Score: 4, Insightful

    Because Apple isn't responsible for the salaries of Foxconn employees?

    Apple IS responsible, because they know the workers' conditions, and still accept to make business with their direct employers. Those workers work FOR Apple, it doesn't matter how long the control chain between Apple and them is.

    Interestingly, among all the companies using that factory (Dell, HP, Nokia, ...) Apple is the only one that has insisted in reviews and reports about the conditions even before this suicide row.

    And please don't stop there. 99% of the other chinese crap (not limited to electronics) you buy has been manufactured under conditions that are probably much, much worse than those at Foxconn.

    Apple has become a scapegoat of certain people and I totally hate that. Not because I love Apple so much, but because it lets others get away who are often much worse.

  13. Re:Total Vertical Integration - Scary by mgblst · · Score: 4, Insightful

    I hope you have never shopped at a BP petrol station, since then YOU are responsible for the oil spill, it doesn't matter how long the control chain between BP and you is.