Alternatives to ATTO Disk Benchmark
A free benchmark from ATTO Technology for measuring storage read and write performance. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
ATTO Disk Benchmark
A free benchmark from ATTO Technology for measuring storage read and write performance.
Replacements
Listings that take over the same core job as ATTO Disk Benchmark.
CrystalDiskMark
The standard Windows disk benchmark, measuring sequential and random read and write speeds in a few clicks.
CrystalDiskMark is an open-source MIT Windows benchmark with sequential, random and mixed tests across peak, real-world and demo modes, plus a portable build.
AS SSD Benchmark
Quick Windows benchmark tool for testing SSD read and write speeds.
AS SSD Benchmark is a free, closed-source Windows benchmark focused specifically on SSD read and write speeds, and runs without installation for a quick test.
KDiskMark
A graphical disk benchmark for Linux that runs fio tests and shows easy-to-read results.
KDiskMark is a free, open-source Linux benchmark with configurable block size, queues and threads, built on fio, so it replaces the Windows tool only on Linux.
DiskSpd
Microsoft's command-line storage load generator for benchmarking disk performance on Windows.
DiskSpd from Microsoft is open source and command-line only, offering highly configurable synthetic workloads and XML results for scripting on Windows.
fio
A flexible command-line I/O tester for benchmarking and stress-testing storage devices.
fio is a free, open-source command-line I/O tester for Linux with highly configurable workloads and detailed throughput, latency and IOPS reports, but no graphical interface.
GNOME Disks
A graphical disk utility for GNOME that partitions, formats, benchmarks and images drives on Linux.
GNOME Disks is a free, open-source Linux disk utility with a built-in read and access-time benchmark, bundled with partitioning, formatting and SMART health data.
Similar software
Related functionality, not a direct replacement.
Samsung Magician
Samsung's management app for its consumer SSDs, covering firmware updates, health checks, benchmarks and secure erase.
CrystalDiskInfo
Reads the health data your drives already record and tells you plainly whether one is dying.
HDDScan
A free Windows utility for testing hard drives and SSDs, reading SMART data and running surface tests.
f3
A command-line tool that tests flash drives and memory cards for fake capacity and real performance.
smartmontools
Reads the SMART health data built into disks and runs self-tests, giving advance warning before a drive fails.
