iFixit confirms iPhone 4S has 512MB of RAM

Siri, do you might if we do a teardown?

iFixit's teardown of the iPhone 4S uncovers some interesting facts about Apple's iPhone 4S.

First thing we discover - as rumored, the iPhone 4S has 512MB of RAM. This has been confirmed by markings on the A5 processor:

The markings to look for are the E4E4, which means that the CPU is a two 2 Gb LPDDR2 die, and 4Gb translates into 512 MB.

Chipworks has a photo of the A5 processor die:

Other highlights from the teardown:

  • The battery has an extra 0.05WHrs compared to the iPhone 4!
  • Battery connectors are different, so it's unlikely that an iPhone 4 battery would fit in the 4S.
  • The 4S features the vibrator motor from the Verizon iPhone 4, a linear oscillating vibrator:

Note that the iFixit teardown is ongoing at the time of writing, so I'll update this post with any new information as it comes in.


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