Author: Matt Taylor
Date: 19:03:40 02/22/03
Go up one level in this thread
On February 22, 2003 at 20:42:41, Jeremiah Penery wrote: >On February 22, 2003 at 02:21:52, Charles Worthington wrote: > >>On February 22, 2003 at 01:08:15, Jeremiah Penery wrote: >> >>>On February 22, 2003 at 00:31:38, Charles Worthington wrote: >>> >>>>Oh and i also believe that if AMD had the technology or the research funds to >>>>have invented hyperthreading technology...they would have. it doesnt take a >>> >>>You're making some statements out of absolute ignorance here. >>> >>>First of all, Intel didn't invent "hyperthreading" technology. Nor do they own >>>exclusive rights to such technology - there's no legal issue preventing AMD from >>>implementing something like it in their processors. Second, for the past >>>several years, AMD has produced more patents than Intel has, despite a R&D >>>budget several times lower than Intel's. What does that say about Intel's >>>"technology or research funds"? >>> >>>The P4 has notoriously bad IPC compared to other recent x86 processors. You >>>could say that a big reason for adding hyperthreading is to ameliorate this >>>condition. I.e., the addition of hyperthreading brings the IPC up to a more >>>respectable level, though it's still somewhat lower than that of the Athlon. >>>Without hyperthreading, all the P4 has going for it is a high clockrate. The P4 >>>_needs_ hyperthreading to keep its performance advantage. >>> >>>>rocket scientist to see that two threads are better than one for multiple >>>>applications. >>> >>>And 4 threads are better than 2...What's your point? >> >>Actually the point is really simple...hyperthreading produces a boost in speed >>and an extra thread to run background applications faster. If AMD has the >>know-how to incorporate hyperthreading technology into their processors they >>would be foolish not to economically and performance-wise....The truth of the > >Please explain why Intel didn't make Hyperthreading run 4 threads, instead of >just 2. Use the same reasoning to explain why AMD doesn't use Hyperthreading at >all. The most likely explanation is that AMD doesn't think their current >processors will benefit very much from hyperthreading, so it's not worth it. >The P4 does, however, benefit a lot from it, so it's used. Athlon would benefit. AMD's focus has not been on HyperThreading. Their attention has been turned toward a means of eliminating bottlenecks. Their attention has also been turned toward restructuring and becoming profitable. They have been losing lots of money. >>matter is....they cant do it and maintain a bargain basement price for their >>products...and in all reality...I'm not 100% sure they have the know how or else >>they could be marketing a high end hyperthreading chip to compete with the >>xeon...or maybe they just don't want that extra money? > >AMD is, and has been for quite some time, concentrating almost all their >resources on Opteron. If it had anything to do with lack of 'know-how', Intel >would already be leading by a huge margin in performance, given their >near-infinite resources relative to AMD. Being able to keep up with Intel in >the performace race for so long with so much less in the way or resources speaks >volumes about the excellence of AMD's engineering and R&D processes. Or DEC's engineering process since AMD has borrowed so much from Alpha. That doesn't discredit them, though. Perhaps that makes them even smarter -- borrow something that is -known- to work well vs. designing your own. -Matt
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