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RAM DDR2 vs DDR3

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Ei guys,

Im building my a new rig and I would like to ask your thoughts on what type of RAM should I choose? Is DDR2 still "IN" when it comes to usability or DDR3 time's come?

I'll be using my system to play some newly awaited games like diablo 3 and starcraft 2. Please let the videocard as an outside factor for now.

7 replies

by balge

hi
I would suggest that selecting your motherboard is the more important step, then buy RAM to suit your mobo, its a case of future-proofing too
cheers

by thechas

As we have a growing list of options when building up a system, the order of choosing hardware is changing.

Are you going to install a 32 or 64 bit OS?
If you might switch to a 64 bit OS within the expected life of the system, follow your decision path for a 64 bit OS.

Choose your CPU.
AMD, Intel, then class and socket.

Select your motherboard. For a 64 bit OS, make sure that you could install at least 16GB of RAM if you wanted to.

Once you have your motherboard selected, you know whether you will use DDR2 or DDR3 RAM.

Now, you need to select the RAM that will provide the best performance with your CPU. If possible, select RAM speed so that an even multiple of the RAM speed equals the CPU FSB speed.
Then, choose how much RAM to install.

If you are going to use a 32 bit OS, even for a top end gaming rig, I would not install more than 3 GB of RAM. With a high end video card, at least 1 GB of the 4 GB address space will not be available for system RAM. So, any RAM above 3 GB just sits there and draws power.

For a 64 bit OS, install as much RAM as you can afford / the motherboard will take.

Chas

by infernal acolyte

Well it boils down to me in choosing a suitable mobo.

Quick question guys, what mobo would u suggest. I've had good experiences with ASUS mobos and I think i'll go on that path but may i ask ur opinions.

by balge

well....if you need you might have to decide what APPLICATIONS you are going to run first of all, if they are 32 or 64 bit will decide your OS, the amount of RAM needed to run them also affects the OS choice...

Asus make lots of different mobo's - but so do lots of other people...
try working out your spec, look around for a few that meeet it, then check for problems regarding those models

cheers!

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