CrystalDiskMark vs AS SSD Benchmark

CrystalDiskMark9.0Visit ASAS SSD Benchmark7.5Visit

Higher score CrystalDiskMark #1 in Disk Benchmark Software 9.0/10 Free plan Free plan✓ 0 of 5 features Get CrystalDiskMark

vs

AS AS SSD Benchmark #8 in Disk Benchmark Software 7.5/10 Free plan Free plan✓ 4 of 5 features Try AS SSD Benchmark

• CrystalDiskMark fits best

  Easy Windows SSD and disk testing

• AS SSD Benchmark fits best

  Windows SSD comparison testing

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Side by side

Feature	CrystalDiskMark 9.0/10 Visit ↗	ASAS SSD Benchmark 7.5/10 Visit ↗
At a glance
Editor score	9.0	7.5
Ranking	#1 in Disk Benchmark Software	#8 in Disk Benchmark Software
Best for	Easy Windows SSD and disk testing	Windows SSD comparison testing
Pricing model	Free	Free
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Desktop	Desktop
Platforms	Windows	Windows
Built for	Solo, Small business	Solo, Small business
Features CrystalDiskMark 0/5 · AS SSD Benchmark 4/5
Random I/O tests	Not checked yet	✓ (best)
Sequential tests	Not checked yet	✓ (best)
IOPS measurement	Not checked yet	✓ (best)
Latency measurement	Not checked yet	✓ (best)
Command-line interface	Not checked yet	Not checked yet
Specs
Supported platforms	Not checked yet	Windows
Our review
Pros	Tests sequential, random, read, write, and mixed performance. Shows MB/s, GB/s, IOPS, and average latency results. Exports results as text or PNG, JPEG, and BMP images.	Tests sequential, random 4K, and 4K-64-thread performance Combines access time, compression, copy, scoring, and IOPS results Supports NVMe SSD testing and practical ISO, program, and game file copies
Cons	Windows-only software. The Microsoft Store edition costs $9.99 one-time. Its many settings may be more than casual users need.	Windows-only platform support No verified CLI support Published download page lists a 2017 release
Our verdict	CrystalDiskMark is an open-source Windows storage benchmark for measuring sequential, random, read, write, and mixed disk performance. It suits users comparing SSDs, checking drive behavior, or documenting storage results. You choose the… Read the review →	AS SSD Benchmark is a free Windows utility for measuring solid-state drive performance. It suits buyers, builders, and technical users who need comparable results across SSDs, including NVMe models. Its test set covers sequential read and… Read the review →

Strengths and trade-offs

• CrystalDiskMark — where it wins

  • Tests sequential, random, read, write, and mixed performance.
  • Shows MB/s, GB/s, IOPS, and average latency results.
  • Exports results as text or PNG, JPEG, and BMP images.

  Where it doesn't

  • Windows-only software.
  • The Microsoft Store edition costs $9.99 one-time.
  • Its many settings may be more than casual users need.

• AS SSD Benchmark — where it wins

  • Tests sequential, random 4K, and 4K-64-thread performance
  • Combines access time, compression, copy, scoring, and IOPS results
  • Supports NVMe SSD testing and practical ISO, program, and game file copies

  Where it doesn't

  • Windows-only platform support
  • No verified CLI support
  • Published download page lists a 2017 release

• CrystalDiskMark9.0/10 · Free plan

  A configurable Windows disk benchmark with detailed speed, IOPS, and latency results.

  Get CrystalDiskMarkFull verdict →
• ASAS SSD Benchmark7.5/10 · Free plan

  A focused, free Windows utility for comparing SSD speed, latency, scoring, and IOPS.

  Try AS SSD BenchmarkFull verdict →