Rambus (RMBS) - Eagle or Penguin Message Board

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Technology Stocks : Rambus (RMBS) - Eagle or Penguin

RMBS 92.35

-0.4%

Nov 25 3:59 PM EST

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To: John Walliker who wrote (26086)	4/9/2001 9:03:29 AM
From: Scumbria	Read Replies (1) of 93625

John, It is also wrong to suggest that doubling the data rate will not increase the power consumption. In CMOS circuits power is dissipated as a result of charging and discharging circuit capacitances. If the rate of doing this is doubled then so is the power consumption (if the voltage stays the same). The number of times that the transistors switch within a certain time period is determined by how much data is transferred to the CPU. DDR typically shows a 5-10% performance improvement, so it seems reasonable to expect a comparable increase in number of transitions per unit time. DDR also has more idle time than SDRAM, because the data transfers occur more quickly. Scumbria

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