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

To: Tenchusatsu who wrote (40704)4/25/2000 4:49:00 AM
From: Joe NYC  Read Replies (2) | Respond to of 93625
 
Tenchusatsu,

Thanks for the reply.

On the other hand, I really don't think dual-channel DDR can easily be implemented with just a 6-layer motherboard. That leaves RDRAM with a big advantage once the Willamette/Tehama platform rolls around.

Willamette/Foster will at least be able to to use the additional bandwidth offered by Rambus, and dual RDRAM implementations. This still leaves me confused (as I posted earlier) why Intel would prefer DDR to Rambus in the server area, where bandwidth is very important.

RDRAM may in fact provide tangible benefits for Willy/Foster, but I am still scratching my head as to why would Intel push it to Coppermine and hedge on Foster.

Regarding Athlon, I am not sure if the dual DDR will be necessary. The single channel provides all the bandwidth the (future) Athlon chip is able to receive: 133 MHz x 8 bytes x 2 = 2.1 GB/s. Current Athlons on DDR platform are limited to DDR 200 anyway, with bandwidth of 1.6 GB/s. Which incidentally matches a single RDRAM channel. ;-)

Joe



To: Tenchusatsu who wrote (40704)4/25/2000 9:29:00 AM
From: jim kelley  Read Replies (1) | Respond to of 93625
 
Re: Layers for DDR

It is not my assumption it is Pat Gelsinger's.
I agree that with work one can usually eliminate a layer or 2.

. "We will support DDR-SDRAM operating at 100 MHz for the server segment," said Patrick Gelsinger, vice president of Intel's Desktop Product Group. "The electrical noise problems associated with DDR can be solved using 12-layer boards, which are okay for servers but not for desktops.


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