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Why Intel processors don't have an integrated memory controller

Posted on Thursday, March 09 2006 @ 01:53:12 CET by

Intel's CEO Paul Otellini today said the reason why Intel doesn't include a memory controller on its chips like AMD does is the costs.

A memory controller onboard of the processor increases system performance because it cuts down the commute time for electrons.
Intel does not integrate the memory controller. One reason is that memory standards change. Current Athlon computers, for instance, don't come with DDR II memory because the integrated memory controller connects to DDR I. Intel once tried to come out with a chip, Timna, that had an integrated memory controller that hooked up to Rambus. The flop of Rambus in the market led to the untimely demise of the chip.

Another reason is that Intel puts a lot of cache on its chips, which cuts down the need for an integrated memory controller, he said in an interview at the Intel Developer Forum.

"The only thing better than having an integrated memory controller on having the memory on chip," he said.
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