Overclocking iPhone 5

Discussion in 'iPhone' started by steiney, Oct 24, 2012.

  1. steiney macrumors 6502

    Nov 6, 2009
    Hello All!

    I have the iPhone 5.

    I was reading on the iPhone wikipedia page the other day and saw that all but the current CPU have been underclocked. At first I wondered if it would be possible to change the clock rate (correct term?) to the normal rate, but then I started to wonder if I could overclock my iPhone 5 to run faster than normal. I have AppleCare+, so if it burns out the CPU early, I can just swap it out at the Apple Store.

    FYI to any responding, I know what under/overclocking is, but have no idea how to go about actually changing the clock rate of a CPU.

    To summarize: Is it possible to overclock an iPhone 5?

    If anyone has any ideas, etc. I would be glad to hear them.

    Thanks in advance,

  2. Applejuiced macrumors Westmere


    Apr 16, 2008
    At the iPhone hacks section.
    No, currently it cannot be done and I doubt it will be an option in the future even with a JB.
  3. tymaster50 macrumors 68030


    Oct 3, 2012
    New Jersey
    you can't and you probably never will be able to. Plus I heard it's really bad for your phone
  4. steiney thread starter macrumors 6502

    Nov 6, 2009
    Thanks Applejuiced. Any idea why it's not possible with a jailbroken iPhone? Just because no one has written an app to facilitate it or because it would be damaging to the CPU?
  5. Adutrumque macrumors 65816


    Mar 8, 2012
    If it hasn't been done on the previous phones I bet it will never happen (read) in the near future.

    However , it's generally never a good idea if you compare overclocking a laptop to a tower pcs performance. The cooling system on the laptops can most likely never handle it.

    Now look at the iPhones size and scrap your idea.

    Food for thought.
  6. cookiesnfooty macrumors 6502


    Jul 1, 2009
    There is the fact that there is absolutely no need to, nothing on the Iphone 5 right now struggles or at least not to my knowledge. :confused:
  7. Rocko1 macrumors 68020


    Nov 3, 2011
    The fastest phone available does not need to be overclocked.
  8. Applejuiced macrumors Westmere


    Apr 16, 2008
    At the iPhone hacks section.
    For all these years with JB iphones noone tried to go as far as adjusting CPU clock speeds and probably for very good reasons.
    You shouldnt mess with things like that, its not a gaming rig with coolers and such.
    Its a phone, I wouldnt risk trying to fry it. The i5 is plenty fast. I can see trying on older and slower iphones but there's only so much you can do with old and outdated hardware. Pushing them to their max is not a good idea IMO.

    Very well said.
  9. steiney thread starter macrumors 6502

    Nov 6, 2009
    Thanks guys. Yeah, I agree it doesn't need to be overclocked, but it would be nice to have a good speed boost and make everything more snappy. I guess the phone is designed to dissapate only a certain amount of heat, and overclocking it would push the heat levels too high.
  10. bwhli macrumors 6502a


    Jan 9, 2012
    Boston, MA
    Nope, not possible. Also, I don't know why you would want to introduce more heat in your phone. It's already pretty packed inside.
  11. BFizzzle macrumors 68020


    May 31, 2010
    Austin TX
    butttt from my curiosity, i wonder if it will be more plausible for the ip5 to be over clocked (obviously when its jailbroken)

    i know its impossible on the past devices since its CPU speeds are stored on NVRAM when the ipsw is installed.. but since the new one is dynamic on the cpu clock.. maybe there is something outside of the NVRAM that controls it.. whether it be something simple as a plist..or something in the kernel etc. idk. just curious now.

  12. Applejuiced macrumors Westmere


    Apr 16, 2008
    At the iPhone hacks section.
    I'll let you try it first:)
  13. cynics macrumors G4

    Jan 8, 2012
    Overclocking mobile devices can be tricky due to heat concerns. With iOS's ecosystem there really isn't a reason, games for older devices have watered down graphics by default.

    On Android you get a choice a lot of the time. High, medium, and low graphics. On a older device high might be choppy as the frame rate drops. Overclocking then helps some. The same applies to emulators for more modern consoles like playstation. On my Xoom (tegra 2) certain Nintendo 64 games had low frame rate at times. Overclocking definitely helped.

    I think a lot of people just do it to do it. Setting the highest benchmark is a game all in itself.
  14. BFizzzle macrumors 68020


    May 31, 2010
    Austin TX
    haha hold on im working on a public jailbreak first jk
  15. Skika macrumors 68030

    Mar 11, 2009
    Why would you even do that? Sounds like a really bad idea.
  16. iceterminal macrumors 68000


    May 25, 2008
    Dallas Tx.
    I merely wish people would stop thinking of a smart phone as if its a desktop PC.
    They hear CPU, memory, etc. and they automatically think its acceptable to compare it to a full computer.

    Think this way:
    I want to over clock my telephone. Sounds dumb doesn't it? lol
  17. Jessica Lares macrumors G3

    Jessica Lares

    Oct 31, 2009
    Near Dallas, Texas, USA
    I think Apple will do it themselves in future updates. It's there for future proof, so something like iOS 8 will run smoothly, and people won't be jumping back to iOS 7 because of their devices getting much slower.

    Don't abuse your AppleCare, honestly, that's wrong.
  18. qckslvrsiete macrumors regular

    Jun 22, 2010
    I ran a fake overclock tweak on my JB'd iP4 a few years back. It didn't actually overclock the phone, but it let you set the speed of the animations so that the phone seemed like it was more snappy (e.g. click a folder and it flashes up immediately, launch an app and *boom* it was open). The difference was literally fractions of seconds, but the effect was noticeable enough to make the phone *seem* faster.
  19. Applejuiced macrumors Westmere


    Apr 16, 2008
    At the iPhone hacks section.
    One of my favorite cydia tweaks:D
    It just speeds up the animations but after a while it makes up the whole thing seems faster and going on stock speed feels slow:D
  20. Drizzle127 macrumors newbie

    May 8, 2013
    You can overclock any iPhone up to the iPhone 5 by changing some variables in the
    Looking for

    You can tweak some variable to change the frequency the processor is set to..

    Not recommended for the casual user but it is possible, I've thought about it on the 5, just have to search through a few more packages to find what I'm looking for
  21. Intell macrumors P6


    Jan 24, 2010
    This has long been disproven to overclock an iOS device. All that does is force the CPU to not be able to sleep or clock itself down to save battery life when the screen is off. There are no positive gains from doing that. Only a faster draining battery.
  22. itjw macrumors 65816

    Dec 20, 2011
    You agree there is no need... then go on to say it'd be nice to be "more snappy".


    Just another example of someone who would trade it all for a little more. And would commit fraud (intentional damage is NOT covered by AC+, even if someone could "get away" with the fraud) to replace it after they broke it.

    Go buy an Android if all you want are specs. The iPhone has always been about simply working, and never about being king of the spec. mountain (even though it happens from time to time anyway). It's why Apple doesn't bother posting the speed in the first place.

    Even if there WAS a reason to do it you'd be stupid to. It WILL shorten the life of the proc. (even if used in moderation), but based on your desire to do it just to do it, I'd bet money you'd push it beyond the limits within minutes anyway. Then you'd be back here asking for help when it breaks/melts.

    See all the trouble I saved you?

    You're welcome

  23. cynics macrumors G4

    Jan 8, 2012
    I agree. Just get an Android phone if you want that level of customization. There isn't a real need to overclock/undervolt in iOS. Even when the device gets older and apps are too graphically intense for it you'd still need to defeat the App Store and the app programming to run on the device. So not only is everything fighting you to be possible everything is fighting you to be useful.

    The only differences I've noticed when overclocking in Android is playstation emulators run smoother with higher FPS. Also noticed better battery life when overclocking AND undervolting. So in iOS its kind of pointless.
  24. Defender2010 macrumors 68030


    Jun 6, 2010
    That would be the 5S...
  25. ValerieDurden macrumors 6502a

    Feb 3, 2010
    Philadelphia, PA, USA
    The iPhone 5 is already blazing fast...

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