Author: Lanny DiBartolomeo
Date: 10:17:37 04/14/00
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On April 14, 2000 at 06:38:57, David Blackman wrote: >On April 13, 2000 at 15:03:20, Lanny DiBartolomeo wrote: > >>In popular science (may 2000) it said that by summer 1ghz machine will be on the >>shelves but that 1.5 ghz by pentium will be out not long after. Later down the >>page AMDK has an expermental chip that runs at 4.5 ghz!! what do you think the >>ratings of the top programs will be that monster? :) > > >It depends what kind of chip it is. Is it a microprocessor, or is it some other >kind of chip. Extremely high frequencies have been on the market for a while for >simpler chips such as crossbar switches, emit an output pulse for every second >input pulse chips, analog amplifiers or oscilators, and lots of other useful >things that aren't actually computers. The trick is that a microprocessor is >much larger and more complicated, and therefore more difficult to run fast. > >Even if it is a microprocessor, it may well be a very simple one, without >superscalar, without out-of-order execution, with really small caches, and >therefore actually slower at 4.5GHz than most chips are at 1GHz. It's been done >before, and often is a useful demonstration of how to make certain parts of a >chip run fast. The same tricks could turn up on production machines eventually, >but scaling it all up to a full-sized modern CPU could take quite a few years. From what I read it implied that it was a microprocessor and it was being compared to the 1 and 1.5 ghz so it seemed was no "trick" just new techniques.
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