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I will be purchasing RAM for a PC of mine that operates as a gaming server and I don't know what types of RAM I should get. On http://crucial.com/ I selected my PC model (Dell OptiPlex 740) and it showed what types of RAM is compatible with my PC; so the question is, what kind is the best? On the website it says...

Memory Type: DDR2 PC2-8500, DDR2 PC2-6400, DDR2 PC2-5300, DDR2 (non-ECC)

Maximum Memory: 8GB

Slots: 4

What does this mean? What is the best? Automatically I'd assume PC2-8500, since it has the highest number. In other words, what do the numbers mean and which has the best performance?

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closed as off topic by techie007, Hennes, terdon, mpy, Breakthrough Jun 9 '13 at 6:10

Questions on Super User are expected to relate to computer software or computer hardware within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

    
Shopping reccomendations are not allowed on this site per the Help, however if you did some slight re-wording of your question to be about learning what those numbers mean (instead of telling you which ram to buy) you question will not be closed for being off topic (but there still may be a duplicate) –  Scott Chamberlain Jun 8 '13 at 18:03
    
Okay. I just reworded a few things so that while it still keeps the same idea, but it is more focused on the numbers themselves. –  Elijah Goforth Jun 8 '13 at 19:10
    
I removed parts of the question and reworded it. Can it be reopened? –  Elijah Goforth Jun 9 '13 at 6:45
    
This would be a duplicate of How do I interpret the specification of memory (RAM)? – but generally, the answer is: just take the fastest. –  slhck Jun 9 '13 at 9:35
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1 Answer

up vote 0 down vote accepted

In the phrase

DDR[N]-[S]

The N stands for the version number. Higher is better, but generally, your computer will only support one version (2 in your case). S represents the speed of the memory. Again, higher is better.

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