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To: Elmer who wrote (131019)3/28/2001 11:50:19 AM
From: pgerassi  Read Replies (2) of 186894
 
Dear Elmer:

But, Intel SPEC optimizing compilers cannot compile any application other than SPEC. Other compilers that show P4 is a worse than a Athlon on SPEC can successfully compile a usable mainstream application. Another good high quality benchmark with source code even, ScienceMark cannot be compiled with Vtune even after months with Intel's software support, but all of the other compilers seem to have no problem. After compilation, ScienceMark shows than a 1.725GHz P4 is slower than a 1.33GHz Tbird (102.84 < 112.79) and the P4 is overclocked. A standard P4 at 1.5GHz under Win2K gets only 87.67 and a 1.4GHz P4 gets 83.83. A standard Tbird 1.1G "B" an KT133 gets 91.29 and a standard Tbird 1200 "C" on a AMD 760 gets 101.51. The current champ is a Tbird 1.2B on KT133A at 143.44MHz SDRAM CAS2 (1522.2MHz) Win2KPro gets 126.03.

Given the above, 1.7GHz P4 would just be somewhat comparable to Tbird 1.3 but, not on real science uses using real compilers (A compiler that cannot produce running usable code on 99% of applications is not a real compiler). To get a P4 on a 400MHz FSB to match a 1.33GHz Tbird, would require a speed of 2.154GHz ((112.79 - 87.67)*100/(87.67-83.83) + 1500). Intel better raise speeds soon or they will be seeing red, ink that is.

Pete
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