MacBook Pro 16GB RAM 1600Mhz

ThomasLentati · Jun 24, 2012

Hi, I have a 2,4GHz i5 and I have bought 16GB RAM @1600Mhz.
I was wonderring if the 1600MHz RAM would work because I've seen people with it working just fine. Now I'm asking this because if I just spend 150 bucks for nothing I'll be pissed!

Thanks,

Thomas

SandboxGeneral · Jun 24, 2012

ThomasLentati said:
Hi, I have a 2,4GHz i5 and I have bought 16GB RAM @1600Mhz.
I was wonderring if the 1600MHz RAM would work because I've seen people with it working just fine. Now I'm asking this because if I just spend 150 bucks for nothing I'll be pissed!

Thanks,

Thomas

It should work, and work at the bus speed of your logic board. But next time, you should check into these things before you buy.

ThomasLentati · Jun 24, 2012

SandboxGeneral said:
It should work, and work at the bus speed of your logic board. But next time, you should check into these things before you buy.

Thanks for replying. I forgot to mension my MBP is a 13" and not a 15".

ThomasLentati · Jun 24, 2012

SandboxGeneral said:
It should work, and work at the bus speed of your logic board. But next time, you should check into these things before you buy.

I have a 13". Does it matter if it's a 13" and not a 15"?

boomhower · Jun 24, 2012

ThomasLentati said:
I have a 13". Does it matter if it's a 13" and not a 15"?

Nope. Same chipset.

ThomasLentati · Jun 24, 2012

boomhower said:
nope. Same chipset.

thanks!! :d

ThomasLentati · Jun 24, 2012

boomhower said:
Nope. Same chipset.

God Apple support Communities are pissng me off, because they are all telling me it won't work. But on MR and another tech forum they say it will!

Exana · Jun 24, 2012

boomhower said:
Nope. Same chipset.

It's not a chipset question since the memory controller is cpu build-in. Sandy Bridge Core i5 CPU (MacBook Pro 13" 2011) did not handle DDR3-1600. It will run at 1333. Only Sandy Bridge Core i7 Quand handle DDR3-1600 at full speed. All Ivy bridge can run DDR3-1600.

ThomasLentati · Jun 24, 2012

Exana said:
It's not a chipset question since the memory controller is cpu build-in. Sandy Bridge Core i5 CPU (MacBook Pro 13" 2011) did not handle DDR3-1600. It will run at 1333. Only Andy Bridge Core i7 Quand handle DDR3-1600 at full speed. All Ivy bridge can run DDR3-1600.

Are you serious? So there is no chance my MBP can have 1600MHz RAM? Some people say with the late 2011 i5's the RAM @1600Mhz will clock down to 1333MHz. I hope it will work, I don't care if it clocks down, I just want it to work. Because otherwise I've wasted $150.

Exana · Jun 24, 2012

According to Intel specs, 1333 MHz DDR3 :
http://ark.intel.com/products/53450/Intel-Core-i5-2430M-Processor-(3M-Cache-up-to-3_00-GHz)

Memory Types DDR3-1066/1333

irock101 · Jun 24, 2012

Using GEIL ram at 1600mhz without a problem.

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Sorry just noticed your having an i5 and i am having an i7. Not sure that makes the difference.

Exana · Jun 24, 2012

You are showing Intel Core i7 2,0 GHz Quad Core witch can handle DDR3-1600.

ThomasLentati · Jun 24, 2012

Exana said:
According to Intel specs, 1333 MHz DDR3 :
http://ark.intel.com/products/53450/Intel-Core-i5-2430M-Processor-(3M-Cache-up-to-3_00-GHz)

Memory Types DDR3-1066/1333

Thanks, but if I put 1600MHz it will probably just clock down to 1333MHz?

G-Mo · Jun 24, 2012

ThomasLentati said:
Now I'm asking this because if I just spend 150 bucks for nothing I'll be pissed!

You should be pissed even if it does work. $150 for 16GB is at least $51 too much!

I've go 1600MHz at work, I'll test it tomorrow in my 13" i5.

ThomasLentati · Jun 24, 2012

G-Mo said:
You should be pissed even if it does work. $150 for 16GB is at least $51 too much!

Yeah I will be pissed, but is there a possibility that it works, even if the ram Clocks Down I don't car just want it to work.

----------

G-Mo said:
You should be pissed even if it does work. $150 for 16GB is at least $51 too much!

I've go 1600MHz at work, I'll test it tomorrow in my 13" i5.

Thank you so much!

Exana · Jun 24, 2012

It will work (at 1333) with lower CAS (perhaps 9 or at best 8). So not completly useless but overpriced for such a small improvement.

ThomasLentati · Jun 24, 2012

Exana said:
It will work (at 1333) with lower CAS (perhaps 9 or at best 8). So not completly useless but overpriced for such a small improvement.

True. Thanks for replying!

boomhower · Jun 24, 2012

Exana said:
It's not a chipset question since the memory controller is cpu build-in. Sandy Bridge Core i5 CPU (MacBook Pro 13" 2011) did not handle DDR3-1600. It will run at 1333. Only Sandy Bridge Core i7 Quand handle DDR3-1600 at full speed. All Ivy bridge can run DDR3-1600.

I misread the post. I read 2.5Ghz which is an Ivy Bridge CPU hence my post. My bad.

whdigital · Jun 24, 2012

Any problems with the other way around? I've got a 2012 15" cMBP and 16GB of Crucial RAM that I had just purchased for a 2011 and had not put in yet. It's rated at 1333 and not 1600. Any problems known or appreciable performance hit??

ThomasLentati · Jun 25, 2012

whdigital said:
Any problems with the other way around? I've got a 2012 15" cMBP and 16GB of Crucial RAM that I had just purchased for a 2011 and had not put in yet. It's rated at 1333 and not 1600. Any problems known or appreciable performance hit??

Should work, put you MBP 15" is a 2012 so it has the Ivy bridge, and that runs @1600. It will work but you will get a bit less better performance on 3D stuff.

Exana · Jun 25, 2012

whdigital said:
Any problems with the other way around? I've got a 2012 15" cMBP and 16GB of Crucial RAM that I had just purchased for a 2011 and had not put in yet. It's rated at 1333 and not 1600. Any problems known or appreciable performance hit??

If you have buy DDR3-1333 from Crucial (witch was the most common last year), it will run at 1333 MHz even with MacBook Pro 2012.

whdigital · Jun 25, 2012

Exana said:
If you have buy DDR3-1333 from Crucial (witch was the most common last year), it will run at 1333 MHz even with MacBook Pro 2012.

Yeah, that's a given. Just wasn't sure if it caused issues.

Now, if I could only figure out the difference between Corsair Vengence and OWC RAM each with different CAS Latency and voltage...

ThomasLentati · Jun 25, 2012

whdigital said:
Yeah, that's a given. Just wasn't sure if it caused issues.

Now, if I could only figure out the difference between Corsair Vengence and OWC RAM each with different CAS Latency and voltage...

Good point, i'm not sure but if I remember the new 2012 mbp use 1.35 V and the Vengeance by Corsair is 1.5 (like on the old MBP) and the timmings are 9-9-9-24. Those are the mac timmings.

Exana · Jun 25, 2012

Apple use DDR3-1600 CL11 regular 1.5v. I wait for 16GB Corsair Vengeance DDR3-1600 CL10. Unfortunately, Corsair did not offer 16GB DDR3-1600 CL9 (only for 8GB).
I will post geekbench before and after.

Exana · Jun 25, 2012

According to what I found on a french forum, DDR3-1600 work with Core i5 2,3 GHz MacBook Pro 13 2011:
16GB DDR3-1600 CL9 (from Komputerbay) : 6219
http://browser.primatelabs.com/geekbench2/760676

4GB DDR3-1333 CL11 (default) : 6013
http://browser.primatelabs.com/geekbench2/796695

MacBook Pro 16GB RAM 1600Mhz

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