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Technology Stocks : Rambus (RMBS) - Eagle or Penguin -- Ignore unavailable to you. Want to Upgrade?


To: Glenda King who wrote (29290)9/11/1999 7:25:00 PM
From: grok  Respond to of 93625
 
RE: <The way I read this is it will be available next year.>

Well, 1 gigabyte sdram modules are available today from Samsung. I'd expect that they are cheap too since they use 128 Mbit chips which have just taken over from 64 Mbit chips as the cheapest per bit memory chips. You can see the module here if you have Acrobat:
usa.samsungsemi.com

This module has 36 sdrams on it and provides 1 GByte plus error correcting. If a 1 GByte Rdram module does become available next year then I'd expect it will be real late in the year. There are two problems:
1. Bits per chip are less with Rdram due to the Rambus die size penalty so each new generation in capacity will come later with Rambus.
2. Chips per module. Rambus seems stuck on only 8 chips per module due to electrical reasons. Thus a 1 GByte RIMM would have to be made with 1 GBit chips. While I believe Samsung has already sampled a 1 Gbit sdram it will still be a long time before it is in production and then longer for Rdram.

These two problems mean that Rambus is not so good for density and is one of the reasons it has been shutout of big servers.