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Politics : Formerly About Advanced Micro Devices
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To: Charles R who wrote (86157)1/9/2000 5:44:00 PM
From: Tenchusatsu  Read Replies (1) of 1571832
 
Chuck, <Note the compilers and configurations and adjust for availability and cost.>

Just to clarify the facts here, here are the compiler versions used by the two different results:

Fujitsu's www.spec.org results:
Intel Fortran Compiler 4.5
Microsoft Visual C++ 6.0 (for libraries)
Resulting score for Pentium III 733: 30.2

AMD's results
Fortran version 2.4 (Intel Corp.)
C++ version 4.0 (Intel Corp.)
Resulting score for Pentium III 733: 18.0

Wow, a 68% improvement from AMD's scores to Fujitsu's, most of which can probably be attributed to the compiler. (System config can be another factor, but even AMD's score is based on RDRAM, just like Fujitsu's. I wonder if Fujitsu is using the 820 or 840 chipset. AMD is using 820.)

By the way, here AMD's explanation for the use of the older compilers:

"The compilers used are the latest publicly available compilers from Intel Corporation (Fortran version 2.4, C++ version 4.0). Although the SPEC rules allow for the use of unreleased compilers, AMD has not taken advantage of this with any kind of special compiler changes. As such, the scores shown are representative of what can be achieved by software today, but do not necessarily reflect potential future performance measurements. Comparisons between scores with released compilers and unreleased compilers are not necessarily representative of the performance differences of any single version of software on different platforms."

So assuming that Fujitsu's scores were based on unreleased compilers, I guess AMD marketing is obligated to update their own results once those compilers do become available to the public. And I heard Intel's latest compilers will be available early this year, if they haven't already been released.

Tenchusatsu
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