WAY OFF TOPIC: RISC v/s CISC CPUs for music
Dave Halliday
dave.halliday at greymatter.com
Tue Oct 27 06:42:36 CET 1998
There is no real way to compare the two chip designs. The Reduced
Instruction Set Computer ( RISC ) does some things much better than
the Complex I. S. C. ( CISC ) chips. And it does some things much worse.
Literally, apples ( note the small " a " ) and oranges...
A manufacturer is going to choose the benchmarks that make their
product look the best. Still, as mentioned, the optimised io and the
very fast pipelined simple instructions ( grab a chunk of data and put
it here ) make the CISC architecture good for moving large blocks of
data around. ( music files? ) Windows still needs to work on the
real-time element - process this NOW!
( 2/3's of the way there in Seattle - Linux and Windows NT ) :-)
> From: "Douglas Wright" <dug at be.com>
> To: synth-diy at mailhost.bpa.nl
> Date: Mon, 26 Oct 1998 20:46:59 PST
> Subject: WAY OFF TOPIC: Re: MacOS 8.5
>
> In our experience, running BeOS on both platforms, PC hardware is
> faster AND cheaper. The PowerPC processor is a great design and the
> RAW floating point performance is higher per Mhz, but the io subsystems
> on the PC are much more optimized because of the competition in the
> marketplace. And that whole thing Apple is spreading about the PowerPC
> 233 being flat out faster than the PII 400? BS. Here's what
> PCMagazine found when they recompiled the benchmarks that Apple used
> with a better compiler:
>
> <http://www.zdnet.com/pcmag/firstlooks/9808/imac_tests.html>
>
> Watch those number DOUBLE when you use a really good compiler. In
> fact, this is why Be has recently switched from using Metrowerks to
> EGCS tools for the Intel version of BeOS. We found that using gcc gave
> us a 30% performance improvement with the same code. It would be even
> better if we could use the intel compiler, but there is more to a tool
> chain than the compiler and we couldn't work it out in the short time
> we had.
>
> So, as long as I'm here going off. I'd have to recommend (from my
> highly biased viewpoint - you could even say this is a shameless plug)
> that you buy an intel machine that will run Windows, BeOS and Linux so
> that you are prepared for the coming years and whatever they may bring.
>
> dug
>
>>
>>In a message dated 10/26/98 1:06:29 PM Pacific Standard Time,
>>SMcDonald at doe.mass.edu writes:
>>
>><< 3. Compared to a Pentium II, for most operations the G3 processors
> are
>> twice as fast. So, if you buy a 233MHz, double it to 466MHz. That'd
> make
>> it comparable to Pentium II. >>
>>
>>
>>Why is this speed difference?, are the two not runing at the same
> clock speed?
>>What makes the MAC hardware faster then the PC hardware?
>>
> >>
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