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Dual channel vs single channel memory

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October 25, 2013 10:20:52 AM

Are two sticks of 4GB memory running in dual channels better or worse than running a single 8GB stick in one slot?
October 25, 2013 10:27:37 AM

kevinbr said:
Are two sticks of 4GB memory running in dual channels better or worse than running a single 8GB stick in one slot?


2 in dual channel is always better than a single in single channel. it will be much faster
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October 25, 2013 10:36:41 AM

Dual channel is gonna be best. It will be fast and if one of your memory cards stop working, you still have one left ;) 
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October 25, 2013 10:46:29 AM

So, would it stand to reason that if two 4GB sticks are better than one 8GB, then four sticks of 2GB would be even better if I had four slots?
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October 25, 2013 10:51:35 AM

If you had a motherboard/CPU with a quad-channel memory controller, you'd want 4x2 GB RAM instead of 2x4 GB. But if you have dual-channel like most modern-ish PCs, 2x4 GB makes more sense.
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October 25, 2013 11:02:27 AM

So if I had four slots but NOT quad channel and I put four sticks of 2 GB I would essentially have two channels of 4GB memory which would be less effective than the original setup of two 4GB sticks.
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October 25, 2013 3:30:42 PM

kevinbr said:
So, would it stand to reason that if two 4GB sticks are better than one 8GB, then four sticks of 2GB would be even better if I had four slots?

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No - 4 sticks just puts additional stress on the MC (memory controller), the additional slots are simply to allow you to expand the max amount of DRAM, the preferred config in dual channel is 2 sticks, unless your DRAM needs exceed what you can install in the 2 slots - i.e. 2x2GB for 4GB, 2x4GB for 8GB, 2x8GB for 16GB
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