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Old 03-03-2009, 06:23 PM   #1 (permalink)
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Default 2x2 or 4x1?

Im just curious whats better for RAM: having 2x2gb or 4x1gb?
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Old 03-03-2009, 06:39 PM   #2 (permalink)
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Default Re: 2x2 or 4x1?

I would say 2x2. Gives you room to upgrade later and I believe its a little faster because its easier on the memory controller.
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Old 03-03-2009, 06:51 PM   #3 (permalink)
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Default Re: 2x2 or 4x1?

Swings and roundabouts really. Generally you can get 1gb dimms at faster CAS timings for less thus essentially giving you faster ram however as dario said controlling 4 sticks adds some work load to the memory controller leading to slight slowdown.

Why are you asking do you have a couple of ram sticks waiting to be used up?
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Old 03-03-2009, 07:25 PM   #4 (permalink)
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Default Re: 2x2 or 4x1?

2x2GB for sure.

The less memory sticks you have, the more stable and overclockable it is.
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Old 03-04-2009, 02:41 AM   #5 (permalink)
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Default Re: 2x2 or 4x1?

it's memory controller dependant how well it works with 4 sticks compared to 2.

K10 and K10.5 CPU's can run in unganged mode (splits the 128-bit memory controller into two 64-bit memory controllers), which can increase performance with 4 sticks compared to two, since it can do multiple reads/writes to memory at a time, though bandwidth for each channel halves (but the total bandwidth won't change much)

Core 2 CPU's won't have much if any difference between 2 or 4 sticks. Some earlier K8 systems had trouble with 4 sticks, but the mid and later chips didn't.
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Old 03-04-2009, 03:16 AM   #6 (permalink)
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Default Re: 2x2 or 4x1?

I wouldn't worry unless you had a quad. Good thing w/ 4x1gb kits is you can actually get Micron D9's and overclock real nice. 2X2gb your most likely going to get Promos or Elpida
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