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Old 12-20-11, 09:55 PM   #17
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Join Date: Nov 2004
Location: Boston, MA, USA
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Default Re: What's up with Intel going back to dual channel memory?

Originally Posted by sillyeagle View Post
I've read at least 5 Sandy Bridge reviews, and none of them touch on why triple channel memory is no longer offered/needed. One review did talk about improvements with pre-fetch, which makes it sound like Sandy Bridge just doesn't need as much bandwidth as Nehalem. Is that right?

I think Nehalem using triple channel has 25% more memory bandwidth than SB, but seems hard to believe pre-fetch improvements alone could lead to SB using 25% less bandwidth.
Did you ever see that translate into a real-world application performance difference?

My Unix benchmark results
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