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Overclocking and WindowsXP x64 Edition

Overclocking and WindowsXP x64 Edition - PCSTATS
Abstract: PCStats thought it would be interesting to see how overclocking is affected on the WindowsXP x64 Edition platform.
Filed under: Operating System Published:  Author: 
External Mfg. Website: Microsoft Sep 07 2006   C. Sun  
Home > Reviews > Operating System > Microsoft WindowsXP x64 Edition

Benchmarks: Super Pi, Hexus piFast, SiSoft Sandra

Super Pi Source: SuperPI

SuperPI calculates the number PI to 1 Million digits in this raw number crunching benchmark. The benchmark is fairly diverse and allows the user to change the number of digits of PI that can be calculated from 16 Thousand to 32 Million. The benchmark, which uses 19 iterations in the test, is set 1 Million digits. Lower numbers are better

Super Pi
1 Million Digit Test: Seconds Ranking
WindowsXP 32-bit Stock (2.4 GHz) 36
WindowsXP 32-bit Overclocked (2.64 GHz) 32
WindowsXP 64-bit Stock (2.4 GHz) 35
WindowsXP 64-bit Overclocked (2.64 GHz) 32
8 Million Digit Test: Seconds Ranking
WindowsXP 32-bit Stock (2.4 GHz) 398
WindowsXP 32-bit Overclocked (2.64 GHz) 360
WindowsXP 64-bit Stock (2.4 GHz) 392
WindowsXP 64-bit Overclocked (2.64 GHz) 360

Super Pi completes the standard 1 million digit test slightly faster in a WindowsXP x64 Edition environment than it does in 32-bit, but it's nice to see that the overclocking results from both platforms are similar.

Hexus piFast Source: Hexus

Pifast is a small program that computes Pi to a set amount of decimal places and also display's how long it takes. Since it tells you how long it takes this then gives us a basis for charting the results giving a performance indicator for new and old technology at a glace. Lower numbers are better.

Hexus piFast:
Operating Systems Seconds Ranking
WindowsXP 32-bit Stock (2.4 GHz) 51.41
WindowsXP 32-bit Overclocked(2.64 GHz) 46.58
WindowsXP 64-bit Stock (2.4 GHz) 50.78
WindowsXP 64-bit Overclocked (2.64 GHz) 46.5

piFast is another number crunching benchmark, and here we see similar results for both 32-bit and 64-bit operating systems. Looks like a faster processor equals better performance in both WindowsXP and WindowsXP x64 Edition.

SiSoft Sandra 2005 Source: Sandra

Sandra is designed to test the theoretical power of a complete system and individual components. The numbers taken though are again, purely theoretical and may not represent real world performance.

Sisoft Sandra 2005 Benchmark Results
Multimedia Benchmark CPU Benchmark Memory Benchmark
Processors Integer SSE2: Floating-Point SSE2: Dhrystone SSE2: Whetstone SSE2: Integer SSE2: Float SSE2:
WindowsXP 32-bit Stock (2.4 GHz) 22974 24713 11066 3804 FPU / 4925 SSE2 6049 6014
WindowsXP 32-bit Overclocked (2.64 GHz) 25158 27063 12118 4166 FPU / 5390 SSE2 6644 6606
WindowsXP 64-bit Stock (2.4 GHz) 17969 27728 11794 4375 FPU / 5078SSE2 6099 6063
WindowsXP 64-bit Overclocked (2.64 GHz) 19676 30421 12922 4794 FPU / 5559 SSE2 6693 6639


it/s it/s MIPS MFLOPS MB/s MB/s

I was certainly surprised to see the multimedia benchmark numbers. While the integer portion of the test is much lower than expected on WindowsXP x64 Edition, the floating point section is higher. CPU benchmark numbers are similar as are memory bandwidth scores. This version of SiSoft Sandra is compatible with both 32-bit and 64-bit Windows OSes.

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Contents of Article: Microsoft WindowsXP x64 Edition
 Pg 1.  Overclocking and WindowsXP x64 Edition
 Pg 2.  Benchmarks: 3DMark2001, 3DMark05
 Pg 3.  — Benchmarks: Super Pi, Hexus piFast, SiSoft Sandra
 Pg 4.  Benchmarks: ScienceMark 2.0, Minigzip
 Pg 5.  Benchmarks: DivxEncoder, Cinebench 2003
 Pg 6.  Benchmarks: SPECviewperf 8.0.1
 Pg 7.  Benchmarks: UT2004, Doom 3

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