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Old Jan 15, 2013, 07:34 PM   #1
DEATHCON51
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Smile Difference between 1333Mhz and 1600Mhz

Hello, I was just wondering what the difference was between 1333Mhz and 1600Mhz, because I was planning on buying more RAM for my MacBook Pro Late 2011 and wanted to know if there would be much of a difference between them.
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Old Jan 15, 2013, 07:38 PM   #2
snaky69
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Originally Posted by DEATHCON51 View Post
Hello, I was just wondering what the difference was between 1333Mhz and 1600Mhz, because I was planning on buying more RAM for my MacBook Pro Late 2011 and wanted to know if there would be much of a difference between them.
None you would notice during actual usage. Benchmarks would show a difference.
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Old Jan 15, 2013, 07:42 PM   #3
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^^ that.

However, i just upgraded to 16GB of DDR1600, which is sold as "DDR1333 compatible" (supposedly falls back if required).

The difference in cost was about 5-10 dollars vs plain DDR1333.
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Old Jan 15, 2013, 08:28 PM   #4
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Well, nowadays the price difference is so minimal that I would certainly buy The One Spec'd for your machine, unless someone is giving you some.. ** or maybe if you are thinking of Upgrading to a newer computer and want to Swap if out to that later, then going to a higher spec may be warranted if backwards compatibility is confirmed..
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Old Jan 15, 2013, 08:29 PM   #5
ybz90
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Backwards compatibility is generally no problem. RAM these days can always always down clock if they are similar. Much better than the olden days when even properly specced RAM would fail to work because of some finicky controller.
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Old Jan 15, 2013, 08:32 PM   #6
DEATHCON51
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Question

If I were to buy 2x8GB 1333Mhz Ram for the new iMac 2012. The one that cost 1799. Would it be compatible with it, because I was reading some of the older posts and it having to be compaible.
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Old Jan 15, 2013, 10:26 PM   #7
throAU
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Originally Posted by ybz90 View Post
Backwards compatibility is generally no problem. RAM these days can always always down clock if they are similar. Much better than the olden days when even properly specced RAM would fail to work because of some finicky controller.
This is my experience also.

However, if it is actually sold as 1600/1333mhz compatible, then i have the right to return it if it isn't

FWIW, it is running at 1600 in my MBP, which is "officially" specced for 1333.
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