CrystalCPUID [Obsolete]

CrystalCPUID is a CPU utility software.

CrystalCPUID showing processor information on Windows

System Requirements

OS	x86 : Vista/2003/XP/2000/NT4/Me/98/95 x64 : Vista/2003/XP
IE	4.0 ~

Key Features

Support AMD64/EM64T
Intel SpeedStep Control
AMD K6/K7/K8/GeodeLX Multiplier/Voltage Control
VIA CyrixIII/C3 Multiplier Control
Multiplier Management
MSR Editor/MSR Walker
Clock, Cache, System Clock, Multiplier
Feature Flags
CPUID
Process Rule
Code Name
Multi Processor
PCI Device List
Chipset/VGA information
BIOS Information
Change Dialog Font
Change Wallpaper

FAQ

Automatic startup with activation of multiplier management.

Set /CQ & /HIDE command line option and put shortcut on Startup. If you would like to get more information, please read ReadMeCpuid.txt.
example
“C:CrystalCPUIDCrystalCPUID.exe”
-> “C:CrystalCPUIDCrystalCPUID.exe” /CQ /HIDE

*This feature may not work on Windows Vista.

Practical guide to CrystalCPUID

This independent CrystalCPUID guide is written for Windows 11 and Windows 10 users who want a clear overview before installing or running the utility. It summarizes the tool’s purpose, supported use cases, edition choices, and the checks worth making before a test.

For consistent results, use the same Windows power plan, close active transfers, and record the selected test settings. Download only the edition you intend to use, verify the publisher information shown by Windows, and retain backups before any storage troubleshooting. Benchmark scores describe a specific workload and should be compared only when the test conditions match.