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To: cordob who wrote (72188)5/7/2001 4:02:47 PM
From: Bilow  Respond to of 93625
 
Hi cordob; What that designer said back in 1999 wasn't a horror story, it was actually fairly balanced way of describing a complex situation. For instance:

"Twelve to eighteen months ago, [i.e. early 1998,] the answer was easy. Your only choice was Direct Rambus. At that time, it held a significant technical advantage on paper over its only real competition, SDR SDRAM. However, because of the numerous dealys in Intel's 820 chipset and getting Direct Rambus production-ready, Rambus has found itself in the unfortunate position of being compared to DDR SDRAM. While Direct Rambus is still superior to even DDR SDRAM in bandwidth per pin (800 Mbps/pin vs. 200 Mbps/pin, respectively), many applications may yet lean towards a DDR SDRAM implementation. Why? I found out with my two customer projects: It all boils down to risk and cost."

Most of the changes since then have been to the advantage of DDR. DDR is running at 266 Mbps/pin even in DIMMs now, while the point to point crowd is shipping 533Mbps/pin parts. The reason for my linking the guy in is that his comments came out just before I began declaring RDRAM dead, dead, dead.

-- Carl