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Recently I have been facing issues with multitasking with my Macbook Pro (13-inch, Late 2011) and decided to upgrade my RAM. Now, my laptop currently has 2-2GB DDR3 1333 MHz for a total of 4GB. I wanted to upgrade my RAM to a total of 8GB. enter image description here

Here's my confusion:

The Apple Support page on upgrading RAM recommends 1600MHz for my model.

So what should I do? Stick with 1333MHz or buy 1600MHz?I'm willing to spend the extra money if the motherboard will be able to utilize faster memory. Will I notice a difference? Also, what about warranty? Will my warranty be voided by installing either of these myself?

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The MacBook Pro: How to remove or install memory article you linked does not state 1600 MHz for MacBook Pro (13-inch, Late 2011)! It actually states "PC3-10600 DDR3 1333 MHz type RAM". I would not purchase 1600 MHz RAM and instead purchase what is specified.

As to voiding the warranty for upgrading the RAM yourself, I was told at an Apple store that it wouldn't however If you live close to an Apple store and your Mac is still under warranty I'd suggest you have them do it unless you have the proper tools and knowledge to accomplish the task.

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  • Oh, I was reading reading the wrong table! – Siddhartha Mar 10 '15 at 9:33
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The 1600Mhz will not harm your computer and yes it is faster.

It is unclear if you will notice the 1333 vs 1600, since the main speed improvement will come from memory size increase from 4 to 8 Gig.

Recommended is not to mix old and new, so you will have to buy all 8 Gig of same type.

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  • Yes but if the motherboard won't even utilize the extra clock speed, isn't it better to go for the cheaper 1333MHz memory? – Siddhartha Mar 10 '15 at 7:25
  • You are correct in that case. Again, the most speed improvement comes from memory size increase, not so much from the clock frequency. – Ruskes Mar 10 '15 at 7:28

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