Jazz Disk Bench Pro

Baofeng County Jixu Education Information Consulting Co., Ltd.

Jazz Disk Bench Pro app icon
4.4 stars28 reviews$2.99
4+Version 7.1.0Updated 3/18/2026, 12:21:18 PM
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Jazz Disk Bench is a pro-grade storage performance measurement tool designed for SSDs, SD cards, and internal/external storage. Get accurate data on your device's throughput with industry-standard testing methods. Key Features: * Sequential Speed Test: Measure peak performance for copying large files (movies, games, etc.). * 4K Random IOPS: Evaluate system responsiveness. Low random performance is often the root cause of device lag. * Pro Stress Test: Push your storage to the limit with 2GB–100GB tests to check stability and "real" NAND speed after cache exhaustion. * External Storage Support: Fully compatible with USB drives and SD cards via custom folder selection. Benchmark Details: * Sequential Test: Reads/writes 16MB blocks sequentially. Perfect for testing raw transfer speeds. * Random Test (4K): Reads/writes 4KB blocks at random locations. This reflects how fast your OS launches apps and handles small files. * Stress Test: Sequentially writes massive data (up to 100GB). Ideal for pro users to test SLC cache size and sustained NAND write performance. Note: For external storage tests, ensure a stable connection and write permissions.

Released
2017-10-22T00:35:50Z
Current version
7.1.0
Reviews & Ratings
4.4
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😊 Highly rated by users
28 reviews

Screenshots

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