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Subject: Re: Crafty Benchmark: AthlonXP-1860MHz vs Northwood P4-2465MHz

Author: Terry McCracken

Date: 14:15:41 02/28/02

Go up one level in this thread


On February 28, 2002 at 05:39:56, Aaron Gordon wrote:

>I know a few of you here are interested in the AMD vs Intel thing and just speed
>in general. Well, here you go. Crafty benchmarks of CPU's clocked beyond
>anything thats out currently. This should show us what we can expect in the near
>future as clock speeds ramp up even further.
>
>Just got a friend to test Crafty on his new Northwood P4-1.8A at
>2465MHz(137fsb). He's using a Pentium 4 optimized (and profiled) Crafty v18.11.
>I am using Crafty 18.11 profiled for the AthlonXP. The results were taken
>without a crafty.rc file. Here they are...
>
>Intel Pentium 4 (Northwood) 1800MHz overclocked to 2465MHz, 137fsb.
>Total nodes: 104161030
>Raw nodes per second: 992009
>Total elapsed time: 105
>SMP time-to-ply measurement: 6.095238
>
>AMD AthlonXP 1900+ 1600MHz overclocked to 1860MHz, 155fsb.
>Total nodes: 104161030
>Raw nodes per second: 1197253
>Total elapsed time: 87
>SMP time-to-ply measurement: 7.356322
>
>As you can see here... the Pentium 4 having twice the L2 and 605MHz more than
>the AthlonXP still gets beaten by over 20%. Not too shabby I figure. :) Can't
>wait for the AMD Hammer (x86-64)...


Intel Pentium 4 (Northwood) 1800MHz overclocked to 2465MHz, 137fsb

I see a couple of problems here. One the "Northwood" core AFAIK is 2.2Ghz before
overclocking. You have it at 1.8Ghz? This appears to be the "Willamette" core on
a 0.18 micron process.

The other problem, is the bus 137Mhz, that is _slow_ and can't be using either
DDR-SDRAM or RDRAM.

If you use RDRAM at 400Mgh with a "Northwood" core at 2.2Ghz or faster then your
results will be far higher for your Crafty Benchmark/P-4 test.


Terry



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