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Technology Stocks : Advanced Micro Devices - Moderated (AMD)

AMD 236.78

-6.1%

Jan 30 3:59 PM EST

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To: pgerassi who wrote (79879)	5/9/2002 10:07:21 PM
From: fyodor_	Read Replies (1) of 275872

Pete: there is also an in between solution to expansion, each memory module has three ports. One towards the root, and a pair to leaves. Thus a single GPU HT link connects to one memory module which connects to two more, which connect to four more and so on. The problem I see with that suggestion (disregarding any termination issues) is that the waste is quite large. If only a single module is used, 2/3 of the HT ports are unused. This would probably be the majority of systems, making the memory modules unnecessarily expensive. Even if all the slots are filled (three modules), 2/3 of the HT ports are unused on the two secondary modules. In a commodity business, such as the DRAM business, I just don't think there is room for this kind of design inefficiency. -fyo

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