Re: R10000-150mHz_vs_R12000-300mHz...(?)

From: Tristram Scott (tristram.scott_at_ntlworld.com)
Date: 03/20/05

  • Next message: Ivan Rayner: "Re: NEKOCHAN - is it down?" 
    Date: Sun, 20 Mar 2005 19:12:55 GMT

    In comp.sys.sgi.apps arie van schutterhoef <arsche@xs4all.nl> wrote:
    >
    >> You can read Ian's CPU performance tables for examples showing how the FP
    >> performance especially is completely neutered in the R10k O2 compared to the
    >> exact same CPU in the Octane or even the Indigo2:
    >> <http://www.futuretech.blinkenlights.nl/r10kcomp.html>
    >> <http://www.futuretech.blinkenlights.nl/r10k250comp.html>
    > -I've read them some time ago and they give a general
    > indication, but I'm not so sure to what extent they relate
    > to audio processing. They all seem to graphics -oriented.
    > Though maybe it's better to speak in general signal processing
    > terms.
    >

    Signal processing will likely involve FFTs, and these benefit greatly from
    a decent sized cache. The Octanes will cope much more easily than the
    O2. They also have the digital audio as a standard rather than an extra.

    If you are reading or writing to disk I have always found the Octanes to
    be better are shoving large amounts of data across the system, so that
    would be another advantage.

    Either one has good quality audio hardware.

    >> If you don't use the UMA features in the O2 then you're *much* better off
    >> with an Octane.
    > -I presume with UMA's strengths, you talk of the I/O benefits?
    > As far as being better of: the o2 is going to be used for
    > concerts and an Octane is far too noisy with all these fans.
    > The o2 is much quieter, so otherwise the Octane would be the favorite.
    >
    > AvS

    If you are worried about the noise, you could always put it in a
    (ventilated) box. The Octane is not too bad, really. Not silent, but not
    unbearable. They do weigh quite a bit more than the O2. Never fun to shift
    them about. 

    -- 
Dr Tristram J. Scott               
Energy Consultant
  • Next message: Ivan Rayner: "Re: NEKOCHAN - is it down?"

    Relevant Pages

    • Re: Apollo-11 missing syllable discovered
      ... on my Octane at the moment. ... "one small step for man" it is 2.20' duration. ... The audio in question is from a tape recording made at HSK, ...
      (sci.space.history)
    • Re: R10000-150mHz_vs_R12000-300mHz...(?)
      ... > exact same CPU in the Octane or even the Indigo2: ... indication, but I'm not so sure to what extent they relate ... Though maybe it's better to speak in general signal processing ...
      (comp.sys.sgi.misc)