Originally Posted by sillyeagle
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?