Author: Anthony Cozzie
Date: 12:14:53 02/09/04
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On February 09, 2004 at 14:23:55, Aloisio Ponti Lopes wrote: >... by releasing their processors at the same speed in GHz ? > >As a consumer I can`t understand that. It seems to me that AMD`s problem is the >heat issue... so the important thing to do when buying an AMD processor is to >liquid-cool it or get some sort of special (refrigerated) case to build the >system, if you want to push it to the limit by overclocking ? > >I was also looking for a good notebook as I have 2 medical offices now, and >buying another desktop was not my idea... but I began to search for an AMD >notebook, and... guess what?! It`s really difficult to find one here (Brazil)... >there are Toshibas everywhere, from Celeron to Pentium 4, and of course there >are the new Centrinos with Wi-FI (from Acer too), but they`re extremelly >expensive here... so the AMD processors rocks for chess, but their marketing >sucks; I could only find a HP XP 2400+ (2.0 GHz) with DVD/CD-RW and 512 MB RAM. >Only one model. No other models or options to compare... > >Maybe it`s time for AMD to look for an smarter CEO or at least someone to put >some fire on the market, like Steve Jobs (Apple) or Lee Iacoca (Chrysler) did >some years ago... > >A. Ponti It is very interesting to see what the average non-architecture guy thinks :) Modern CPUs break the execution of an instruction into many parts. More parts = deeper pipeline -> faster clocks -> more GHz. However, the deeper the pipeline, the more branch mispredictions hurt you, and your memory isn't getting any faster, etc. I think I am going to try to write an article "understanding modern superscalar pipelines for the uninitiated" because there are so many people here that don't understand why P4 isn't faster than Opteron even though its clocked faster. anthony
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