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To: Elmer who wrote (131019)	3/28/2001 12:24:19 AM
From: Cirruslvr	Read Replies (1) \| Respond to of 186894

Elmer - RE: "You make a good point but how likely are we to see a single application with different parts compiled with different compiler options?" Not very likely in x86 applications. But SPEC is a measurement of a processor's peak performance. That's why each company uses the fastest available compiler and not necessarily the one used more often to compile programs. How likely are x86 applications to be compiled perfectly optimized to achieve the best balanced performance on a given processor, given you have said Intel's compiler produces dramitic improvements on Intel processors and the K7? "Both companies have standardized on one compiler. Intel's compiler." I didn't realize that it's true for int (but not for fp). "At any rate, it looks like it's getting near time for Intel to up the ante and move up at least one more speed grade." Yeah, I realize that. Tit for tat and Intel will go back to having the higher score. But I'm enjoying the Athlon being on top while it lasts. ;)

To: Elmer who wrote (131019)	3/28/2001 1:26:35 AM
From: Jim McMannis	Respond to of 186894

Elmer, How do you think the P4 will do on SPEC when it's paired with SDRAM? :.) Jim

To: Elmer who wrote (131019)	3/28/2001 6:52:04 AM
From: Road Walker	Read Replies (1) \| Respond to of 186894

Elmer, (From the "OK just admit you are stupid and ask the question" category) In simple terms, what exactly is a "compiler"? John

To: Elmer who wrote (131019)	3/28/2001 11:50:19 AM
From: pgerassi	Read Replies (2) \| Respond to 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