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D-Bench
What it is
D-Bench is a free Windows utility for measuring read and write performance on SSDs, HDDs, NVMe drives, and USB storage. It reports throughput in MB/s, IOPS, and average latency, with read and write throughput shown separately. Tests can use sequential or random I/O, and users can set block size, queue depth, and thread count. HDD, SSD, and Flash Drive presets are included; additional controls cover access pattern, read/write mode, read percentage, duration, warm-up, and cool-down. The drive selector lists ready drives with their letter, volume label, free space, and total capacity. Tests can be managed in the settings window, where users can add, update, remove, reorder, duplicate, or clear them. Results can be saved as plain TXT files or styled, self-contained HTML reports. D-Bench uses unbuffered I/O and disables operating-system read caching for write tests as much as possible. Separate builds are available for Windows Vista and 7, or Windows 8, 8.1, 10, and 11. Downloads come in Default, Blue, and Red themes.
For and against
For
- Measures sequential and random I/O
- Reports throughput, IOPS, and average latency
- Includes HDD, SSD, and Flash Drive presets
- Exports TXT files and self-contained HTML reports
- Builds cover Windows Vista through 11
Against
- Windows only
- No command-line interface
The verdict
D-Bench offers configurable storage tests and several ways to review or save results. It is a graphical Windows utility, with separate builds for older and newer Windows versions.
Who it suits
Windows users who want to measure storage read and write performance with configurable workloads and exportable reports.
Plans and prices
Free
Windows 8/8.1/10/11 or Vista/7 · approximately 470 KB download · Default, Blue or Red themes
Read 1 Oct 2026 · diskbenchmark.github.io
On the record
- Caching behavior
- The program uses unbuffered I/O and disables OS read caching for write tests as much as possible.diskbenchmark.github.io · read 1 Oct 2026
- Drive selection
- The drive dropdown lists ready drives with drive letter, volume label, free space and total capacity.diskbenchmark.github.io · read 1 Oct 2026
- Maker location
- The GitHub profile for Ari Sohandri Putra lists Indonesia as the location.github.com · read 1 Oct 2026
- Presets
- It includes HDD, SSD and Flash Drive workload presets.diskbenchmark.github.io · read 1 Oct 2026
- Purpose
- D-Bench is a free Windows utility for measuring read and write performance of SSDs, HDDs, NVMe drives and USB storage.diskbenchmark.github.io · read 1 Oct 2026
- Reported metrics
- It reports throughput in MB/s, IOPS and average latency, including separate read and write throughput.diskbenchmark.github.io · read 1 Oct 2026
- Report export
- Benchmark results can be saved as plain TXT files or styled, self-contained HTML reports.diskbenchmark.github.io · read 1 Oct 2026
- Support
- The homepage links to GitHub Sponsors so users can support the author.diskbenchmark.github.io · read 1 Oct 2026
- Supported Windows
- Two builds are provided: one for Windows 8, 8.1, 10 and 11, and another for Windows Vista and 7.diskbenchmark.github.io · read 1 Oct 2026
- Test controls
- Users can configure block size, queue depth, thread count, access pattern, read/write mode, read percentage, duration, warm-up and cool-down.diskbenchmark.github.io · read 1 Oct 2026
- Test management
- The settings window supports adding, updating, removing, reordering, duplicating and clearing tests.diskbenchmark.github.io · read 1 Oct 2026
- Themes
- Downloads are available in Default, Blue and Red themes.diskbenchmark.github.io · read 1 Oct 2026
- Workloads
- The tool runs sequential and random I/O workloads with configurable block sizes, queue depths and thread counts.diskbenchmark.github.io · read 1 Oct 2026
