Rambus (RMBS) - Eagle or Penguin Message Board

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Technology Stocks : Rambus (RMBS) - Eagle or Penguin

RMBS 95.26

+3.1%

Nov 14 9:30 AM EST

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To: Dan3 who wrote (43962)	6/10/2000 6:16:00 PM
From: Bilow	Read Replies (1) of 93625

Hi Dan3; Actually, what I showed was that the total PCB signal width of an RDRAM channel was wider than the total PCB signal width of a PC133 SDRAM channel. You really can't generalize that to DDR vs RDRAM, or even to the problem of comparing two SDRAM to two RDRAM channels. My guess is that DDR and RDRAM are comparable in overall signal width. But DDR will have a slightly more difficult escape problem at the controller, and that could cause an increase in the number of required signal layers. This is the only technical advantage I can find for RDRAM vs DDR with respect to motherboard PCB design issues. Of course there are plenty of issues where DDR is clearly superior to RDRAM in motherboard PCB design, and there are plenty of other areas where the technologies differ in difficulty. -- Carl

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