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: milo_morai who wrote (41950)	5/10/2000 2:35:00 PM
From: jim kelley	Read Replies (2) of 93625

RE:Rdram memory power consumption is lower than a an equivalent DDR memory system Sorry Milo you got it wrong.... The voltages for DDR and RDRAM are now the same at 2.5 V. The currents reported for a Samsung 16Mx8 DDR ram are: IDD0----95 mA IDD1----115 mA IDD4R---150 mA IDD4W---100 mA A 128 bit DDR bus has 8 of these devices active for a read access in parallel. So for a DDR read configuration it looks like 8X 150 mA = 1.2 A. For the RDRAM only one device has to be active. Idd----575/625 mA. Thus, it appears for the same bandwidth at 800 MHZ the RDRAM uses about half the power of a DDR configuration. This is only approximate since there are other chips in both systems. :)

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