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Subject: Re: Dual Core PPC970 in 2005 (OT)

Author: Dan Andersson

Date: 22:53:14 07/28/04

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On July 28, 2004 at 12:18:59, Tord Romstad wrote:

>On July 28, 2004 at 10:13:33, Anthony Cozzie wrote:
>
>>Actually, there are quite a few things that you can do on a cellphone (DSP,
>>games) that require lots of CPU.
>
>Yeah, but only up to a certain limit.  I find it hard to imagine cellphone
>games which would require processor power comparable to current desktop
>computers.  But of course, new technology often develops into something which
>is hard to imagine a few years in advance.
>
>I won't comment on DSP, for the simple reason that I have no idea what it is.
>
 Digital Signal Processors. They are roughly speaking processors optimized for
the task of  transforming streams of data. SIMD in general purpose CPUs is an
attempt to get a subset of DSP on the core
. As an aside I might mention that it would make much more sense to put DSP
functionality in the memory subsystem. A MIMD DSP on memory, mm :)

MvH Dan Andersson

>>The biggest reason to put an MP system there
>>is that it is cheaper and uses less power than a single core solution with the
>>same performance.
>
>Really?  I thought the opposite was the case.  Another example of my poor
>understanding of computer hardware, I suppose.
>
>Tord



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