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About CrystalDiskMark

CrystalDiskMark is a simple disk benchmark software.

Standard Edition

Aoi Edition

Shizuku Edition

System Requirements

OSWindows XP/Vista/7/8/8.1/10/11
Windows Server 2003/2008/2012/2016/2019/2022
Architecture x86/x64/ARM64
  • Installer and x64 version does not support Windows XP/2003 (NT5.x).
  • Not support Windows 95/98/Me/NT4/2000.

Key Features

  • Measure Sequential and Random Performance (Read/Write/Mix)
  • Various measure mode (Peak/Real World/Demo)
  • Many languages support
  • Themes

Important Notice

  • CrystalDiskMark may shorten SSD/USB Memory life.
  • Benchmark result is NOT compatible between different major version.
  • “MB/s” means 1,000,000 byte/sec.
  • The result depends on Test File Size, Test File Position, Fragmentation, IDE(PATA)/SATA/RAID/SCSI/NVMe  controller and CPU speed etc…
  • A part of SSDs depend on test data(random, 0fill).
  • If you execute CrystalDiskMark with Administrator rights, it does not show Network Drive.
    If you would like to measure Network Drive, please run as w/o Administrator rights.
    UAC Dialog: YES -> w/ Administrator Rights, NO -> w/o Administrator Rights

-> FAQ


  • 1GiB = 1024MiB = 1024x1024KiB = 1024x1024x1024B
  • 1GB = 1000MB = 1000x1000KB = 1000x1000x1000B


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