That's because of the X48 "binning".
I mean really, I was so shocked to see so many people buy into the story about INtel binning X38 to X48 for FSB!!!!
It became quite clear that there was some confusion out there as to what Intel chipset really are, and why, in comparison, AMD does not make thier own chipsets(although they do now, via ATI...)
It's all about memory control.
AMD, having the memory controller on cpu, had control. Intel, with no IMC, had to make thier own chipsets to ensure control of memory interface.
Bring into the picture...790i...I wonder what's the difference between Ultra and Ultra SLi? Better memory control while running two cards, which makes for a hotter chipset, maybe?![]()
So don't take AT's article entirely to heart. Intel specifically binned those chipsets with faster memory performance in mind. DDR3-2000 is far more work than DDR2-1200...
X48 used to DDR2 will probably the fastest boards ever. Why? <---Won't see me asking THAT question.





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