Author: Volker Böhm
Date: 05:59:19 08/12/04
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On August 12, 2004 at 03:18:05, krisnatoon wrote: >On August 12, 2004 at 03:08:49, Jouni Uski wrote: > >>If it is Pentium M = Centrino, then everything is OK... >> >>Jouni > >Yes, this is a Centrino. > >Why is then everything OK? Everybody starts to by a PC according "clock" speed. A 1GHz PC is half as fast as a 2GZ PC. Intel´s idea was to develop a processor that supports maximal clock speed no matter how fast it would be. The Pentium IV was born. A Pentium IV with about 1,8 GHz is about as fast as a Pentium III with 1,3 GHz. Because most PC user can not distinguish betwenn different "GHz" AMD had to develop a marketing-trick and invented "quanti-speed" values (they used those before). AMD argues that a CPU with x real GHZ has a quanti-speed of x*Factor (ca. 1,3) GHz. Thus AMD has a GHz value that comes close to the Intel P4 GHz value for CPU with the same speed. Intel marketing now startet a counter attack to AMD´s quanti-speed arguing that only the PV has "real" GHz and not a somehow calculated value. One drawback of high clock speeds is the power consumtion. No matter what tricks Intel is trying the "clock-speed maximized" achitecture of a PVI has much less computer-speed/power-consumtion ratio compared to the Pentium III. In desktop most consumer are ignoring high electicity costs and large and loud fan´s they only have because Intel wanted a high clock rate as selling argument. (Did you notice that I hate Intel for that? They are currently inventing a new type of dektop case that is incompatible to older cases just to support even higher power consumtion and better air-flow) On notbooks high power consumtion reduces time the notebook can work unplugged. The additional heat needs very fast (because small) and loud fan´s. The notebook gets very hot reducing its life-time and the ability to put it on your knees without protection from massiv heat. Now Intel had a problem. They have the better as PIV Processor: The PIII Processor that can easily compare to PIV and Athlon in speed with reduced heat that could be sold in notebooks. They solved it with the "Centrino" brand. "Centrino" is a brand describing a concept where nearly every notebook component is from intel. It is based on the Pentium M CPU (it is a mobile improved Pentium III). Intel does no longer sell notebooks by clock speed but by the total mobility concept (w-lan, long duration unplugged, ...). They could´nt use a kind of "quanti-speed" value because their own marketing just told that AMD does this and it´s bad. I dream of a Pentium M desktop! One thing I have to admit. There are some applications where PIV processors profits from it´s high clock speed. Greetings Volker
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