Model A1419 / Late 2013 / 3.2 & 3.4 GHz Core i5 or 3.5 GHz Core i7 Processor, ID iMac14,2

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Can you install 64GB of RAM on the iMac 27", Late 2013?

i know a girl online using a mac book pro that was able to *double* her macbook's max capacity GB of RAM because there was new ram out with double the GB capacity (than existed when her model of the macbook was built).

so i was wondering if the same is true for the iMac...

thanks in advance.

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To start with you have four memory slots which are broken into Banks (0 & 1). Ideally, you want to use a matched pair within a given bank.

So when you bought your iMac it came with two 4 GB modules (8 GB total RAM). You can see this by going to the About This Mac and tab over to the Memory tab.

You could add in a second bank of RAM of two 4 GB modules which would get you to 16 total RAM which for most people is more than enough. But, you could also go all the way to 32 GB if you needed to!

Here's the Apple T/N on what is possible and needed: iMac: Memory specifications and upgrades.

Hopefully that gives you a framework on what is possible. Don't forget its not just the RAM you need to review when you get to these larger sizes often you need to be running the newest OS and make sure the given App or Apps can support it.

Lastly, don't forget your drive storage having lots of RAM in a system won't help much if the drive is slow or does not have much free space!


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Since 16GB modules where not on the market when the computer came out it is difficult to say since it depends on the CPU and the chipset but also how the memory module is build up. I think in this case the best thing is if you have a dealer who you could talk to and say if the memory works in my iMac i will buy it and if it does not that you can give it back.


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