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Jan 2, 2010
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hello, I have a macbook 4.1 which happens to be one of the lucky one's that can support 6 gig of ram while the others only support 4 gigs, my question is;

would you rather have 4 gig dual channel or 6 gig non-dual channel?


 
Are you doing anything right now that is causing you to run low on memory? If so, then yes another 2 gig would be helpful. If no, adding another 2 gig will do nothing you will notice, except make your wallet feel a little lighter.
As to the difference between dual channel and not dual channel, you won't notice that at all, especially on a laptop.