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Technology Stocks : Intel Corporation (INTC)
INTC 41.41+2.2%Dec 5 9:30 AM EST
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To: Dan3 who wrote (162849)3/24/2002 2:46:47 PM
From: dale_laroy  Read Replies (1) of 186894
 
>An RDRAM channel is as wide, and as expensive in terms of motherboard costs, as a DDR channel. RDRAM traces are speced at half the impedance, and exactly twice the width, of DDR traces. RDRAM traces also require a grounding trace between data traces, doubling the distance that must be maintained between the twice as wide traces. The net result is that a 16bit RDRAM channel uses as much motherboard space, and is as difficult to route and expensive to manufacture, as a 64bit DDR channel.<

I doubt if the conclusion is accurate. Certainly dual channel DRDRAM is more expensive than single channel DDR, but I doubt if single channel DRDRAM is even as expensive as single channel DDR. I would venture to say that the cost would probably work out to, from least expensive to most expensive:

single channel DRDRAM
single channel DDR SDRAM
dual channel DRDRAM
dual channel DDR SDRAM
quad channel DRDRAM
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