iPhone's RAM

Jan 10, 2007
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#1
Does anyone know how much RAM the iPhone has? eg. 512MB, 1GB?

maybe you can't have multiple applications open at once because there is only a bit of RAM.
 

ColsTiger

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Mar 8, 2007
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#2
From what I've read it has 128MB of RAM of which 11MB is for integrated graphics.
 

acosmichippo

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Sep 10, 2007
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#3
i thought there wasn't a consensus on this topic yet... in any case, it's not readily provided by Apple for whatever reason.
 

Lincoln

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Aug 11, 2007
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#5
Does anyone know how much RAM the iPhone has? eg. 512MB, 1GB?

maybe you can't have multiple applications open at once because there is only a bit of RAM.
What? I have several apps running together all the time.

- John
 

kdarling

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Jun 20, 2007
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#6
maybe you can't have multiple applications open at once because there is only a bit of RAM.
It's one of the reasons.

By keeping the number of loaded and running apps to a minimum, Apple is hoping to avoid getting into a tight memory situation.

It's an easy solution for the OS writers. Not so much for developers, who might need to handle saving their state and reloading it the next time you click their icon and the app is reloaded into RAM from flash.

Not the best for battery life either, since extra cycles are used for saving, then reloading / restoring data.

All that said, 128MB is a fair amount. Most handhelds, with only 64MB, do run into tight memory. Those with 128MB are much better off.
 

drumthrasher109

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Jan 9, 2009
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#7
How much RAM does the iPhone 3G have? I noticed that right when I get on to my iPhone after I restart it, there's 25MB available (according to SBsettings).
 

patrickj

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Sep 2, 2007
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#10
True - 256 would be sweet. This is pretty much how nearly all smartphones are - OS and system processes chew up a lot of memory right from the off ...