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Apple made a big deal about the iPad's A4 running at 1GHz, but they've never said how fast the iPhone 4's processor is. In the teardown, iFixit mentions that the iPhone 4 uses an A4 but never gives a clock speed. Has anyone been able to find out how fast it actually is?

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3 Answers

up vote 5 down vote accepted

According to MacRumors and some German source the iPhone 4 is somewhat slower than the iPad, but still significantly faster than the iPhone 3GS. I guess that its A4 CPU is clocked at about 750 - 850 MHz.

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+1. Also, it actually has more RAM than the iPad too. (512 vs 256) –  jmlumpkin Nov 15 '10 at 13:10
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The iPhone 4 is based on the same processor that is seen in the iPad and has a clock speed of 1Ghz.

The iPhone 4 also has 512mb of RAM which is double that of the 3GS and although never officially announced also double that of the iPad.

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its the same processor, but its not clocked at 1GHz like the iPad. –  jmlumpkin Nov 15 '10 at 13:10
    
-1. It's clearly not 1 GHz (see the benchmarks). Apple has a tradition of underclocking the iPhone's CPU since the very first generation. –  MrMage Nov 15 '10 at 19:32
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Though it's not confirmed, most sources claim that the A4 in the iPhone 4 is the same processor that runs the iPad, clocking in at 1ghz as you suggested.

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