About CrystalDiskMark

CrystalDiskMark is a simple, free disk benchmark program for Windows, developed by Crystal Dew World (CrystalMark Inc.). It measures sequential and random read/write performance and is widely used to test SSDs, HDDs, and NVMe drives.

Related Software

From the same developer:

CrystalDiskInfo – Monitor drive health (SMART), temperature, and status.
CrystalMark Retro – Benchmark for older Windows (9x, NT).
CrystalMark 3D25 – 3D benchmark.

Version History (Summary)

Highlights from CrystalDiskMark version history.

9.0.x (2025–2026)

Shizuku and Aoi themes (e.g. TenmuShinryuusai), updated core (Project Priscilla), Flash Memory profile, default runs set to 3, DiskSpd 2.2, code signed by CrystalMark Inc. 9.0.2: language updates, copyright holder change.

8.0.x (2020–2024)

New UI (Project Priscilla), GDI+ font removed, ClearType and DPI improvements, Dark Mode, new default benchmark set (SEQ 1MiB Q8T1/Q1T1, RND 4KiB Q32T1/Q1T1), NVMe preset (Q32T16). Aoi Edition added in 8.0.5. Windows 11 fixes (8.0.3, 8.0.4).

7.0.x (2019–2020)

Admin rights for performance, Shizuku Edition themes, Peak/Real World/Demo profiles, Mix test, DiskSpd affinity change (-n), Sequential 1MiB, Random Q32T16, ARM64 support. Installer no longer supports XP/2003.

6.0.x – 4.0.x

Shizuku themes, random test Q8T8, Queue/Thread settings, benchmark core switched to Microsoft DiskSpd (MIT License) in 4.0.0. Result format changed from 3.x.

3.0.x – 1.x

Shizuku Edition introduced in 3.0.2, digital signature, test data selection (Random/0Fill/1Fill), NCQ test. Initial release 1.0.0 in 2007.

This Website

This site (crystaldiskmark.us) is a fan-made resource in English. It is not operated by Crystal Dew World or CrystalMark Inc. We aim to help users find downloads, guides, FAQ, troubleshooting, and real-world experiences in one place.