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Subject: Re: Opteron > 970, Good article

Author: Andreas Guettinger

Date: 11:23:10 06/24/03

Go up one level in this thread


On June 24, 2003 at 14:10:24, Tom Kerrigan wrote:

>On June 24, 2003 at 14:02:02, Andreas Guettinger wrote:
>
>>On June 24, 2003 at 10:15:48, Dan Andersson wrote:
>>
>>>http://www.haxial.com/spls-soapbox/apple-powermac-G5/
>>
>>I very good laugh indeed. The guy in the article compares G5/Xeon results using
>>VeriTest compiled on gcc3.3 with Intel P4 results and another Dell WS with
>>VeriTest compiled on Intel C++ 7.0 compiler.
>>
>>
>>Compiler:
>>Intel C++ 7.0 build 20021021Z
>>        Microsoft Visual Studio .NET 7.0.9466 (libraries)
>>
>>The AMDs may be faster but you cannot compare benchmarks compiled with different
>>compilers.
>
>Sure you can. SPEC CPU is a CPU benchmark, not a CPU + gcc benchmark. You use
>whatever compiler you can to get the best score possible to indicate raw CPU
>performance.
>
>-Tom


Well, this tells us that VeriTest runs better compiled with Intel C++, but this
dosen't tell us anything about the CPU performance. To discover that IntelC++
optimizes better than gcc on Intel chips I don't need to see a benchmark. :)

See, same machine:

Dell Precision 650
(Pentium 4 Xeon 3.06 GHz)
Apple/Veritest
Compiler gcc3.3
Score: 836

Dell Precision 650
(Pentium 4 Xeon 3.06 GHz)
Dell
Compiler IntelC++ 7.0
Score: 1089



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