Rambus (RMBS) - Eagle or Penguin Message Board

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Technology Stocks : Rambus (RMBS) - Eagle or Penguin

RMBS 96.40

+5.4%

Dec 19 9:30 AM EST

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To: Dave B who wrote (73958)	5/31/2001 12:20:52 PM
From: Ali Chen	Read Replies (2) of 93625

"..the Itanium was initiated long before Intel selected RDRAM" What a convenient explanation for you! (Given that Intel has had first grip on the whole Rambus design and implementation since 1991) "By the time RDRAM showed up, the Itanium (Merced) was behind schedule"... which would give more time for chipset designers to built a Rambus controller, wouldn't it? Unless there are some serious considerations against Rambus in server products... I think the consideration is/was very simple: Rambus today cannot hold more than 1GB of RAM per channel, since only 2 RIMMs can work more or less reliably on a channel. Even with 8 channels it will give you only 8GB of RAM, which is NONE for todays server or workstation standards, while the apparent strategic cometitive target was to support up to 64GB. More, it is impossible to fit 8 Rambus channels around one memory controller unless the board is 12 layers (current i850GX P-4 boards are 6-layer, and the Rambus tracing occupies about 1/3 of the chip perimeter). Even if you double the DRAM chip density (Carl: when it will happen?), the Rambus approach would be still 4-8x short of strategic targets for RAM capacity. - Ali

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