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PerrineClostermann posted:So what in particular made deep pipelines so bad? Do they intrinsically have worse per-clock performance? Is it a simple problem of branch predictors not being good enough? with a deep pipeline, when the predictors are wrong, there's more work to throw away and it takes more time to redo it
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May 25, 2014 11:11
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keyvin posted:Why would AMD fab a bunch of chips that no one is going to buy? A better question: why is AMD only realizing just now that this is a bad strategy?
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Jan 11, 2015 22:42
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Twerk from Home posted:All of this is prettying shocking to me, especially that AMD's best years from 2003-2006 were primarily because Intel had an overly long pipeline and long latencies that made their chips less power efficient and less competitive. I guess AMD failed to learn a single thing from watching Intel flounder with the P4. Wasn't part of their success in that time period due to folks from DEC who worked on Alpha getting jobs at AMD and using the stuff they learned from that?
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Mar 21, 2015 07:27
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