Intel's Pentium Extreme Edition 955: 65nm, 4 threads and 376M transistors

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• Betwon - Saturday, December 31, 2005 - link

  NO.
  Don't You think that Future versions of the patch will be written by intel.

• Viditor - Saturday, December 31, 2005 - link

  quote:
  

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  Don't You think that Future versions of the patch will be written by intel

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  Doubtful (but who knows)...I can't see Intel spending 100s of millions with every developer (or even 1 developer) for the long term, just to keep tweaking their patches. It's just not a very smart long term strategy (and Intel is quite smart).

• Betwon - Saturday, December 31, 2005 - link

  You just guess it.
  
  We find that the good quality codes can provide better performance for both AMD and Intel.
  Intel can often benefit more, because the performance potential of Intel is high.
  
  Now, You can not find another SMP-game which can make fps of SMP CPU improve so much great.
  If you find it, please tell us.
  
  There is no one who found it.
  

• Viditor - Saturday, December 31, 2005 - link

  quote:
  

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  Intel can often benefit more, because the performance potential of Intel is high

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  Now it's you who's guessing...

• Betwon - Saturday, December 31, 2005 - link

  NO.
  
  It is true.

• Viditor - Saturday, December 31, 2005 - link

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  It is true.

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  OK...prove it!

• Betwon - Saturday, December 31, 2005 - link

  For example:
  we saw a test(from anandtech)
  With the good quality codes, AMD become faster than before, but Intel become much faster than before.
  They use Intel's compiler.

• Betwon - Saturday, December 31, 2005 - link

  When not use the intel's compiler, AMD become slow.

• Viditor - Saturday, December 31, 2005 - link

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  When not use the intel's compiler, AMD become slow

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  I know you've often quoted from the spec.org site...
  I suggest you revisit there and look at the difference between AMD systems using Intel compilers and the PathScale or Sun compilers. In general, the Spec scores for AMD improve by as much as 30% when not using an Intel compiler...especially in FP.
  

  quote:
  

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  The code produced by the Intel compiler checks to see if it's running on an Intel chip. If not, it deliberately won't run SSE or SSE2 code, even if the chip capability flags (avaialble [sic] through the 'cpuid' instruction) say that it can. In other words, the code has been nobbled to run slower on non-Intel chips

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  http://www.swallowtail.org/naughty-intel.html">http://www.swallowtail.org/naughty-intel.html

• defter - Saturday, December 31, 2005 - link

  quote:
  

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  I know you've often quoted from the spec.org site...
  I suggest you revisit there and look at the difference between AMD systems using Intel compilers and the PathScale or Sun compilers. In general, the Spec scores for AMD improve by as much as 30% when not using an Intel compiler...especially in FP.
  

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  This is not true, for example:
  FX-57, Intel compiler, SpecInt base 1862:
  http://www.spec.org/osg/cpu2000/results/res2005q2/...">http://www.spec.org/osg/cpu2000/results/res2005q2/...
  FX-57, Pathscale compiler, 1745: http://www.spec.org/osg/cpu2000/results/res2005q2/...">http://www.spec.org/osg/cpu2000/results/res2005q2/...
  
  Opteron 2.8GHz, Intel compiler, SpecInt base 1837: http://www.spec.org/osg/cpu2000/results/res2005q3/...">http://www.spec.org/osg/cpu2000/results/res2005q3/...
  Opteron 2.8GHz, Sun compiler, SpecInt base 1660: http://www.spec.org/osg/cpu2000/results/res2005q4/...">http://www.spec.org/osg/cpu2000/results/res2005q4/...
  
  In SpecFP Intel compiler produces slightly slower results, but the difference isn't 30%:
  Opteron 2.8GHz (HP hardware), Intel compiler, SpecFP base 1805: http://www.spec.org/osg/cpu2000/results/res2005q3/...">http://www.spec.org/osg/cpu2000/results/res2005q3/...
  
  Opteron 2.8GHz (HP hardware), Pathscale compiler, SpecFP base 2052: http://www.spec.org/osg/cpu2000/results/res2005q3/...">http://www.spec.org/osg/cpu2000/results/res2005q3/...
  
  Opteron 2.8GHz (Sun hardware), Sun compiler, SpecFP base 2132: http://www.spec.org/osg/cpu2000/results/res2005q4/...">http://www.spec.org/osg/cpu2000/results/res2005q4/...
  
  So let's see:
  Intel vs Sun compiler:
  - Intel complier is 10.7% faster in SpecINT
  - Sun compiler is 18.1% faster in SpecFP
  
  Intel vs Pathscale compiler:
  - Intel compiler is 6.7% faster in SpecInt
  - Pathscale compiler is 13.7% faster is SpecFP
  
  It is quite suprising that Intel's compiler gives best results for AMD's processors in many situations.