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The 1866 DDR3 with CL10, as long as your motherboard supports it. Considering we're in the MacBook Pro forum yours probably doesn't so go with the 1600.
 
The 1866 DDR3 with CL10, as long as your motherboard supports it. Considering we're in the MacBook Pro forum yours probably doesn't so go with the 1600.

They also don't support 16gb of RAM and we all know how that ends. ;) :D
 
i think the all natural goodtime family band solution is getting to you...

graft vs host, perhaps?
 
1600 DDR3 with CL9

OR

1866 DDR3 with CL10

Thank you. :D

1866 DDR3..trivial difference and now sure if it would be healthy for the logic board.

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Apple not offering the BTO option doesn't mean the motherboard doesn't support it.



http://ark.intel.com/products/65709/Intel-Core-i7-3615QE-Processor-(6M-Cache-up-to-3_30-GHz)

All 2011 iterations and onwards of the MBP support 16GB RAM. It's been proven and being used by many on the forum.
 
1866 if your motherboard uses XMP and runs i at those speeds. Though the difference is very small, so buy whatever is cheaper.

And yes, 1866 ram will run at 1600.

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Just because apple doesn't sell it doesn't mean it's not supported.

And it could also result in crashes if there is incompatibility between the MB and ram. You roll with the risks of using faster then supported ram
 
I know it will.

But does it run at 1866 or 1600 when in a Macbook Pro ?? :D

Has anybody tried it?

You might want to mention which machine you have, model and year. And also what ram you are referring to when u say 1866

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This has been covered many times on MR

https://forums.macrumors.com/threads/1156035/

Search the forums. Having a quick look it will work depending on what model u have though people have complained about crashes.

You risk, want the speed, go for it, may crash.... But u want the fastest right?
 
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