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To: gnuman who wrote (48972)	8/4/2000 6:02:55 PM
From: charred water	Read Replies (1) \| Respond to of 93625

Gene, re: Itanium will use PC100 SDRAM's??????? ebnews.com -------- In the same article: “When Itanium [then code-named Merced] started development three years ago, PC100 wasn't even in the market and Direct Rambus was then in the distant future,” he said. “At that time, PC100 looked like a good choice, but has now been far overtaken by rapid technology growth in the market.”

To: gnuman who wrote (48972)	8/4/2000 6:54:35 PM
From: blake_paterson	Read Replies (1) \| Respond to of 93625

Doesn't this smell like RDRAM? amd.com

To: gnuman who wrote (48972)	8/4/2000 6:58:40 PM
From: blake_paterson	Respond to of 93625

Gene, re: <<Itanium will use PC100 SDRAM's??????>> Looks like Micron opened up its 'crucial' site a bit early... BP

To: gnuman who wrote (48972)	8/4/2000 7:23:41 PM
From: Tenchusatsu	Read Replies (3) \| Respond to of 93625

Gene, <Itanium will use PC100 SDRAM's???????> Actually, Gelsinger is a little off. Technically, Itanium needs only PC66 SDRAM. No, that's not a typo; the 460GX, the first Itanium chipset, will use PC66 SDRAM. (Gelsinger probably said Itanium needed PC100 because product qualification is probably being done only w/ PC100 modules.) Why PC66? Because the 460GX also requires that DIMMs be installed in groups of four. This has the net effect of providing as much bandwidth as DDR-266, but with much larger capacities. Then combined with further interleaving (i.e. beyond the quad-channel PC66 SDRAM), the 460GX chipset will provide more than enough memory bandwidth for Itanium-based servers (up to 8.4 GB/sec with a minimum of 16 DIMMs). That's why RDRAM (and DDR SDRAM) isn't necessary for large-scale servers yet. Such servers create memory bandwidth the old-fashioned way: they brute-force it. Tenchusatsu