CCSIO Benchmark measures sequential read and write performance for a volume and its underlying file stack.
CrystalDiskMark
CrystalDiskMark benchmarks disk performance and is available in Standard, Aoi, and Shizuku editions.
About CrystalDiskMark
CrystalDiskMark is a disk benchmark application for Windows. It measures sequential and random read, write and mixed performance. Downloads are available for the Standard, Aoi and Shizuku editions, with x86, x64 and ARM64 builds.
Key features
- Peak, Real World and Demo measurement modes
- Supports Windows XP through 11 and Windows Server 2003, 2008, 2012, 2016, 2019, 2022 and 2025
- Includes multiple language options and themes
Best for: Windows users who need to benchmark disk performance.
Watch out for
- Testing may shorten SSD or USB memory life.
- Results are not compatible between major versions.
- The installer and x64 build do not support Windows XP/2003.
CrystalDiskMark at a glance
- Category
- Software & Utilities › Hardware & Diagnostics
- Type
- App
- Pricing
- Free
- Platforms
- Windows
- Details verified
- Oct 22, 2026 · Official source
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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CrystalDiskMark FAQ
How can I benchmark a network drive?
Run CrystalDiskMark without administrator rights. Network drives are not shown when it runs with administrator rights.
Why can results differ from other benchmark software?
Results depend on test file size and position, fragmentation, the storage controller and CPU speed. Some SSDs also depend on the test data pattern.
What does MB/s mean?
"MB/s" means 1,000,000 bytes per second.
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