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Technology Stocks : Advanced Micro Devices - Moderated (AMD)
AMD 215.00+0.7%3:59 PM EST
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To: Joe NYC who wrote (76006)3/31/2002 11:35:31 PM
From: Dan3Read Replies (1) of 275872
 
Re: The results with hyperthreading enabled are devastating. Performance drop across the board

It was pretty ugly, wasn't it? Theoretically, SMT should be a very nice technology, that should provide a moderate improvement in IPC under almost any circumstances. An SMT chip should have two sets of registers, stacks, etc. so that there is almost no penalty for its use.

Maybe P4 just has really poor implementation and they'll fix it at some point (or AMD will come out with an SMT implementation that works).
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