Что такое CrystalDiskMark?

CrystalDiskMark — лёгкая программа для тестирования дисков: измеряет последовательную и случайную скорость чтения/записи накопителей. NVMe SSD, SATA SSD или HDD — вы получаете понятные значения в MB/s, GB/s или IOPS: проверка заявленной скорости, сравнение дисков, поиск причин медленной работы.

Программа существует с 2007 года и использует Microsoft DiskSpd. Работает полностью на вашем ПК: без облака, без аккаунта, без отправки данных. Выбираете диск, задаёте размер теста и число прогонов, нажимаете All — результат через одну или несколько минут в зависимости от железа.

CrystalDiskMark — главное окно, редакция Standard

CrystalDiskMark 9 — главное окно редакции Standard

Зачем использовать?

✓ Бесплатно, пользуются миллионы по всему миру
✓ Поддержка Windows XP–Windows 11 и Server
✓ Режимы: Peak, Real World, Demo
✓ Результаты в MB/s, GB/s, IOPS или задержка (μs)
✓ Темы и много языков

Быстрый старт за 3 шага

Первый тест можно запустить меньше чем за минуту. Подробности — в пошаговом руководстве.

1

Скачать и запустить

Возьмите редакцию Standard, Shizuku или Aoi. Портативный ZIP не требует установки — распаковать и запустить.

2

Диск и размер

Выберите букву диска (например C: или D:) и оставьте размер теста 1 GiB для большинства накопителей. Для медленных USB или сетевых дисков — 64–128 MiB.

3

Нажать All

Нажмите кнопку All для полного набора тестов. Результаты появятся в таблице по мере завершения каждого теста.

Für wen ist CrystalDiskMark?

CrystalDiskMark nutzen Privatanwender, IT-Profis, Tester und Systembauer. If you want to check whether your new SSD reaches advertised speeds, compare an old HDD with a new SSD, test a USB drive or network storage, or troubleshoot a slow disk, CrystalDiskMark gives you clear numbers in seconds. No account, no subscription—just download and run.

Gamer

NVMe- oder SSD-Geschwindigkeit für kürzere Ladezeiten prüfen.

Content-Ersteller

Laufwerke für Video-/Bildbearbeitung benchmarken.

IT & Admins

Lokale und Netzwerkspeicher vor/nach Änderungen testen.

Tester

Standard-Tool für Speicher-Benchmarks in Tests.

Systembauer

Neue Systeme prüfen und Laufwerke vor Verkauf oder Einsatz vergleichen.

Privatanwender

Check if an old PC’s disk is the bottleneck or document speed for support.

What Storage Can You Test?

CrystalDiskMark works with any drive that Windows shows as a drive letter. The benchmark runs the same tests regardless of the underlying technology; your results depend on the drive and connection.

✓NVMe SSDs (M.2, PCIe) – local and often the fastest.
✓SATA SSDs and SATA HDDs – internal or external over USB.
✓USB drives – flash drives and external enclosures (USB 2.0/3.0/3.1).
✓Network drives – mapped NAS or file shares (run as normal user, not Admin).
✓RAID volumes – software or hardware RAID presented as a single drive.
✓Other – SD cards (via reader), eMMC, and any block device Windows exposes.

Key Features

CrystalDiskMark packs everything you need into a simple window: choose your drive, set options, and run. No wizard, no account, no internet required.

Themes

Standard, Shizuku, and Aoi editions with multiple visual themes including dark mode.

Languages

Wide language support so you can use CrystalDiskMark in your preferred language.

Test Modes

Peak, Real World, and Demo modes for different benchmarking scenarios.

Read/Write/Mix

Measure sequential and random performance for read, write, and mixed workloads.

What Does CrystalDiskMark Measure?

The benchmark runs several test types. Understanding them helps you interpret results and compare drives.

Test type	What it means
Sequential read/write	Large blocks in order (e.g. copying big files). Often the “headline” speed (MB/s) on SSDs.
Random read/write (4K, etc.)	Small random blocks. Reflects OS and app responsiveness, databases, many small files.
Mix (read+write)	Combined read and write workload. Closer to real multitasking.

Results can be displayed in MB/s, GB/s, IOPS, or average latency (μs). See the guide for step-by-step instructions.

Peak vs Real World: Which Numbers Matter?

CrystalDiskMark offers different test profiles. The two you’ll see most are Peak and Real World. Both are valid—they answer different questions.

Peak

Uses settings that maximize throughput (e.g. deeper queues, larger blocks). You get the highest MB/s the drive can deliver under ideal conditions. Use Peak when you want to compare your drive to manufacturer specs or to other drives in reviews.

Best for: “Is my drive performing at spec?” and headline comparisons.

Real World

Uses a workload that mimics typical desktop use (mixed read/write, more realistic queue depth). Numbers are often lower than Peak but closer to what you’ll see in everyday use.

Best for: “How fast will it feel in real use?” and realistic expectations.

You can switch between Peak and Real World (and other profiles) in the program. For a full walkthrough, see the Guide.

Rough Speed Ranges (Reference Only)

Actual CrystalDiskMark results depend on the drive, controller, and test settings. These are approximate sequential ranges so you know what to expect.

NVMe PCIe 4.0 SSD: Often 5,000–7,000+ MB/s read, 4,000–6,000+ MB/s write (high-end). PCIe 3.0 NVMe: roughly 2,500–3,500 MB/s.
SATA SSD: Typically 500–560 MB/s read/write (SATA limit).
HDD (7200 rpm): Often 150–200 MB/s sequential; random 4K much lower.
USB 3.0 flash drive: Varies widely; often 50–200 MB/s read, 20–100 MB/s write.

If your numbers are far below these, check FAQ and user experiences for troubleshooting.

Device type	Typical sequential read	Typical sequential write
NVMe PCIe 4.0	5,000–7,000+ MB/s	4,000–6,000+ MB/s
NVMe PCIe 3.0	2,500–3,500 MB/s	2,000–3,000 MB/s
SATA SSD	500–560 MB/s	500–560 MB/s
HDD 7200 rpm	150–200 MB/s	150–200 MB/s

When to Run a Benchmark

CrystalDiskMark is useful in many situations. Here are the most common reasons people run a disk benchmark.

After buying a new drive

Verify that your new SSD or NVMe reaches the advertised speeds. Manufacturers often list sequential read/write in MB/s; CrystalDiskMark gives you real numbers in minutes.

Before and after upgrades

Compare an old HDD or SATA SSD with a new NVMe drive. Run the same test size and runs on both to see the real-world improvement.

Troubleshooting slow storage

If Windows or apps feel slow, a benchmark can show whether the disk is the bottleneck. Low random 4K results often explain sluggish system response.

Documentation and RMA

Save results as image or text for warranty claims or support tickets. Proof of below-spec performance can help with replacements.

Choose Your Edition

Standard Edition

Classic look and full benchmark features. Best for most users.

Download →

Shizuku Edition

Same features with alternative themes and character styling.

Download →

Aoi Edition

Another themed variant with the same benchmarking engine.

Download →

Test Size: What to Choose

The test size is how much data CrystalDiskMark reads and writes during each run. The program needs at least that much free space on the drive you select.

Test size	When to use it
64 MiB – 128 MiB	Slow storage (USB 2.0, old HDDs, network drives). Keeps the test short.
1 GiB (default)	Most SSDs and HDDs. Good balance of speed and consistency.
2 GiB – 8 GiB	High-end NVMe; can show sustained performance and cache behavior.

More options (up to 64 GiB) are available in the program. See FAQ – Test size and the Guide.

Related Software

The same developer offers other free utilities that work well with CrystalDiskMark.

CrystalDiskInfo

Shows drive health (SMART), temperature, and model. Use it to check if a drive is healthy before or after benchmarking.

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CrystalMark Retro

Benchmark tool for older systems. Useful if you need to test storage on legacy Windows.

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CrystalMark 3D

GPU and system benchmark. Complements storage tests when evaluating a full PC.

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Terms You Might See

When reading benchmark results or reviews, these terms appear often.

MB/s, GB/s: Megabytes or gigabytes per second; how much data the drive reads or writes per second.
IOPS: Input/output operations per second; important for random workloads and responsiveness.
Sequential: Reading or writing large blocks in order; typical for big file copies and installers.
Random 4K: Small (4 KiB) random reads/writes; reflects OS and app behavior and “snappiness.”
Peak / Real World: Peak = maximum throughput settings; Real World = more typical workload profile.
Q8T1, Q32T1: Queue depth and threads (e.g. 8 queues 1 thread). Higher queue can show higher speeds.

System Requirements

CrystalDiskMark runs on a wide range of Windows systems. You need enough free space on the drive you test (at least as much as the test size you select).

Supported Windows

Windows 11 / 10 / 8.1 / 8 / 7
Windows Server 2022, 2019, 2016, 2012 R2, and older
Windows XP (older editions)

Architecture

x86 (32-bit) and x64 (64-bit)
ARM64 (e.g. Windows on ARM)

Tips for Best Results

Small changes can make your benchmark more consistent and meaningful.

• Close heavy apps (browsers with many tabs, downloads, backup software) so the drive isn’t busy during the test.
• For local drives, run as Administrator if the test fails with “access denied”; for network drives, run as a normal user so they appear in the list.
• Use the same test size and number of runs when comparing two drives—e.g. 1 GiB, 5 runs for both.
• Don’t run the benchmark constantly on SSDs; occasional runs are fine, but heavy repeated use can add wear.

More details: Guide – Tips and best practices · FAQ.

Explore More

Guides, troubleshooting, and real user stories to get the most out of CrystalDiskMark.

How to Use

Step-by-step: select drive, test size, run benchmark. Test profiles (Peak, Real World), units, and tips.

Read the guide →

FAQ & Troubleshooting

Network drive not showing, benchmark failed, slow results, admin rights, saving results, and more.

View FAQ →

User Experiences

Real stories: NVMe checks, network drives, RMA documentation, before/after upgrades, and quick fixes.

Read experiences →

Common Questions

Is CrystalDiskMark free?

Yes. CrystalDiskMark is free to use. The developer may show ads in the installer version to support development; ad-free portable (ZIP) editions are available. No subscription or account is required.

Why don’t I see my network drive?

Network drives are hidden when you run CrystalDiskMark as Administrator. Start the program as a normal user (click No at the UAC prompt) and the mapped network drive will appear in the drive list. See FAQ.

The benchmark failed. What should I do?

For local drives (C:\, D:\, etc.), try running CrystalDiskMark as Administrator (right‑click → Run as administrator). This often fixes “cannot create test file” or access denied errors. For more causes and fixes, see FAQ.

How long does a full benchmark take?

With default settings (e.g. 1 GiB, 5 runs), a fast NVMe often finishes in one to three minutes. A slow HDD or USB drive can take much longer—use a smaller test size (64–128 MiB) for quicker results. See FAQ.

Is it safe to run on my SSD?

Yes for normal use. The benchmark does many writes, so running it constantly for hours can add wear over time. Running it occasionally (e.g. after a new install or when comparing drives) is fine. See FAQ.

Ready to benchmark your drive?

Download CrystalDiskMark for free. No registration required. Supports Windows 11, 10, 8, 7, and Server.

Get CrystalDiskMark