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iFixit confirms iPhone 4S has 512MB of RAM

By | October 13, 2011, 10:00am PDT

Summary: 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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Topics

Apple iPhone, Apple iPhone 4S, RAM, iFixit, Memory, Smart Phones, Semiconductors, Hardware, Components, Consumer Electronics, Personal Technology, Adrian Kingsley-Hughes

Adrian Kingsley-Hughes is an internationally published technology author who has devoted over a decade to helping users get the most from technology.

Disclosure

Adrian Kingsley-Hughes

All opinions expressed on Hardware 2.0 are those of Adrian Kingsley-Hughes. Every effort is made to ensure that the information posted is accurate. If you have any comments, queries or corrections, please contact Adrian via the email link here. Any possible conflicts of interest will be posted below. [Updated: February 23, 2010] - Adrian Kingsley-Hughes has no business relationships, affiliations, investments, or other actual/potential conflicts of interest relating to the content posted so far on this blog.

Biography

Adrian Kingsley-Hughes

Adrian Kingsley-Hughes is an internationally published technology author who has devoted over a decade to helping users get the most from technology -- whether that be by learning to program, building a PC from a pile of parts, or helping them get the most from their new MP3 player or digital camera.

Adrian has authored/co-authored technical books on a variety of topics, ranging from programming to building and maintaining PCs. His most recent books include "Build the Ultimate Custom PC", "Beginning Programming" and "The PC Doctor's Fix It Yourself Guide". He has also written training manuals that have been used by a number of Fortune 500 companies.

Adrian also runs a popular blog under the name The PC Doctor, where he covers a range of computer-related topics -- from security to repairing and upgrading.

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