8 GB DDR3 1600 MHZ vs 16 GB DDR3 1333 MHZ

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Cerativ

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Aug 6, 2012
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Hello,

I wonder which performance is better 8 GB DDR3 1600 MHZ vor 16 GB DDR3 1333 MHZ. In gaming

My motherboard - ASRock p67 pro 3

Can we combine ddr3 1333 mhz with ddr3 1600 mhz?
 
I have now noticed that my processor i5 2500k does not supports 1600 ram memory, is that right?
 
Cerativ said:
I have now noticed that my processor i5 2500k does not supports 1600 ram memory, is that right?
Click to expand...

Define "support". It'll talk to 1600+ it fine. It just means that the memory controller only by spec thinks at 1333 and anything higher is considered an overclock. Same with LGA1366 i7, where the IMC only though at 1066mHz and any memory faster was an overclock.
 
Skripka said:
Define "support". It'll talk to 1600+ it fine. It just means that the memory controller only by spec thinks at 1333 and anything higher is considered an overclock. Same with LGA1366 i7, where the IMC only though at 1066mHz and any memory faster was an overclock.
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Yeah, I'm running my memory at 1866 with a Sandy Bridge and it's been fine.

Really, memory speed comes down to pure usage. Faster memory might be helpful in encoding and the like by shaving valuable seconds off but in most applications, you won't notice much difference.

You can most certainly combine varying memory speeds in the same system but keep in mind that both sets will run at the slowest set's speed. So, if you get a stick of 1333 and put in a stick of 1866, that 1866 memory will run at 1333 unless you overclock the 1333 stick to 1866. Now, that might sound simple, but not all sticks are created equal so the chances of running into problems while overclocking that 1333 stick would greatly increase.
 
Cerativ said:
I mean :
http://ark.intel.com/products/52210/Intel-Core-i5-2500K-Processor-(6M-Cache-up-to-3_70-GHz) "
Memory Types DDR3-1066/1333 - It says I can't use 1600 Mhz's?
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Amigo, that is just the IMC speed. Sandy/Ivy can take 2000+mHz memory. Intel's spec sheet is just that. Most people with Sandy/Ivy use 1600mHz as that is the performance/price sweetspot. Including mysely, my e3-1230 (the Xeon equivalent of a i7-2600 only "supports 1066/1333", and I'm happily using 1600.
 
IDK what to do, I just should I use those 8 GB 1600 mhz or 16 gb 1333 for gaming, I would be pleased if u answered shortly
 
Someone correct me if I'm wrong, but I don't think there are ANY games that will even use 8GB of RAM, let alone more than 4GB.

EDIT: most I've ever seen my computer use while gaming is about 3.5GB
 
but I don't think there are ANY games that will even use 8GB of RAM, let alone more than 4GB.
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The biggest reason for that is most games are 32 bit applications.
 
Cerativ said:
IDK what to do, I just should I use those 8 GB 1600 mhz or 16 gb 1333 for gaming, I would be pleased if u answered shortly
Click to expand...

Either way would not make much of a difference. Although 8GB @ DDR3 1600 will be a few frames faster.
 
Quite weird. I just got those 1600 mhz's, I put it, and it still says I am usin 1333, why is that?
 
Quite weird. I just got those 1600 mhz's, I put it, and it still says I am usin 1333, why is that?
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Because the BIOS will not overclock your ram controller by default. You need to do that manually or to enable the XMP profile for automatic IMC overclocking.
 
Can some1 lead me how to do on my motherboard. Do not know much about this things.

ASRock p67 pro 3
 
you're going to have to go through your bios settings. i suggest searching your mobo on google for OC, and if you're lucky... maybe someone made youtube video for it lol.
 
Cerativ said:
IDK what to do, I just should I use those 8 GB 1600 mhz or 16 gb 1333 for gaming, I would be pleased if u answered shortly
Click to expand...

16GB 1333 over 8GB 1600 all day! When it comes to Ram nowadays especially DDR3 frequency and timings arnt nearly as important as they used to be. You would be hard pressed to feel a difference between 1333 and 1600. I say More is better! go with 16GB!
 
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