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To: Doug M. who wrote (84125)6/21/1999 6:20:00 PM
From: Paul Engel  Respond to of 186894
 
Doug - Re: "If the Katmai (.25 micron PIII) works with RDRAM why wait for Coppermine?"

Performance.

RAMBUS may not provide significant performance increases with Pentium III compared to SDRAM.

The "faster" Coppermine, with it's full CPU speed L2 cache, would provide enough of a performance boost to mask the possible lack of benefit of RAMBUS memory.

Paul




To: Doug M. who wrote (84125)6/21/1999 9:08:00 PM
From: grok  Respond to of 186894
 
RE: <From what I understand Coppermine has always been a Q3 product for Intel. Therefore, Rambus was supposed to have worked with Intel's .25 micron PIII all along>

I think that the difference is that previously it looked like all Coppermine users would have to use Rambus with Camino (unless sdram "options" were made available). This would have caused a big spurt in Rambus usage if Coppermine shipped in Sept.

Now Rambus will only be used in boxes which are specifally redesigned for Rambus. This should result in a much smoother and slower Rambus rampup between Sept and January. In fact it might result in Rambus ramp delayed until January altogether if no performance increase is shown with PIII+Camino+Rambus. [However, Tigerpaw has posted some info saying there is a big performance increase with Rambus but then he disappeared without further followup.]