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Technology Stocks : Intel Corporation (INTC)

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12:47 PM EST

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To: Joe NYC who wrote (158783)	2/14/2002 2:16:49 PM
From: wanna_bmw	Read Replies (2) of 186894

Joe, Re: "The hypothesis is that P4, with it's long pipeline, high branch misprediction penalty will fare worse on .Net/CLR and Java/VM core than Piii and Athlon." The Pentium 4 hybrid branch predictor with branch hint capability offers a lot of room for optimizations for this kind of code. Getting a high prediction hit rate will make the size of the pipeline irrelevant. Re: "Itanium will be even worse, since there is a limit to how much optimization can be done by the JIT compiler on a small code snippets, lack of out of order execution, and limited parallelism will make Itanium perform even worse." Just the opposite. IA-64 was designed to extract more parallelism from code, and speculated execution and predication will give enormously high branch prediction rates. Additionally, McKinley will have 6 parallel integer / memory execution blocks, which should offer far more throughput than any current x86 processor. I expect performancein .NET and Java to be quite good on Itanium. wbmw

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