About CrystalDiskMark

CrystalDiskMark is a simple disk benchmark software.

Standard Edition

Aoi Edition

Shizuku Edition

System Requirements

OS	Windows 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

Unit

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

Manual