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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Petz who wrote (62303)	6/18/1999 6:32:00 PM
From: Tenchusatsu	Respond to of 1574751

<Does the Intel Profusion solution still use a shared bus to memory? I can't see how it will have any reasonable performance in that case. Switched bus (AMD) will be much more efficient and allows for future memory system improvements such as dual ported RAM, already being used for graphics.> I don't know what the Profusion architecture looks like. (I should; they're in my division now.) But my guess is that it uses two shared buses, each bus supporting four processors. Without knowing the architecture of Profusion or the K7 8-way chipsets, I have no way of judging which one will perform better. Let me just say that point-to-point buses aren't necessarily the panacea that the K7 foils make them out to be. It's just a different way of doing multiprocessing, complete with its own trade-offs. As for a 4-way multiprocessor bus, I've seen the results of an internal performance study, and the shared bus isn't as limiting as you might think, even with four Xeons on one bus. Tenchusatsu