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Technology Stocks : Advanced Micro Devices - Moderated (AMD)

AMD 214.11

+3.9%

Nov 26 3:59 PM EST

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To: Petz who wrote (19155)	11/15/2000 4:45:40 AM
From: Petz	of 275872

Based on the limited benchmarks available for production P4's, it appears my statement that the P4 does scale well with MHz is true. What I'm saying is that the execution speed does not increase much as the clock speed is raised. Defining the "scalability index" as the percentage increase in benchmark performance divided by the fractional increase of clock speed, here are some comparisons (from good to bad): ....................................Scalability Benchmark..................P4....KT133....760-266 CC Winbench 2000....33%...80%......61% SysMark J..................42%...58%......57% Quake3 demo2_640..40%...43%......48% 3D Winbench 2000.....63%...73%......77% Sysmark 2000.............56%...68%......54% It may seem counterintuitive that the KT133 seems to scale slightly better than the DDR platform. That's because the DDR platform is so much faster (usually faster than the 1.5 GHz P4) that it is running into limitations of other components at 1.2 GHz. Also, most other (but there's no P4 numbers for them yet!) benchmarks show better scalability for the 760-266 DDR platform than for the KT133 platform. Petz

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