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WD My Passport SSD 256GB Review

The drive comes factory formatted in the exFAT file system, but to test the drive we reformatted it to NTFS.

Crystalmark is a useful benchmark to measure theoretical performance levels of hard drives and SSD’s. We are using V3.0.3.

The ATTO Disk Benchmark performance measurement tool is compatible with Microsoft Windows. Measure your storage systems performance with various transfer sizes and test lengths for reads and writes. Several options are available to customize your performance measurement including queue depth, overlapped I/O and even a comparison mode with the option to run continuously.

Use ATTO Disk Benchmark to test any manufacturers RAID controllers, storage controllers, host adapters, hard drives and SSD drives and notice that ATTO products will consistently provide the highest level of performance to your storage.

AS SSD is a great free tool designed just for benching Solid State Drives. It performs an array of sequential read and write tests, as well as random read and write tests with sequential access times over a portion of the drive. AS SSD includes a sub suite of benchmarks with various file pattern algorithms but this is difficult in trying to judge accurate performance figures.


WD quote transfer speeds of up to 515MB/s for the My Passport SSD, which was confirmed by the ATTO benchmark. The 256GB drive produced a Sequential read score of 517MB/s and 531MB/s for writes. It’s very nearly as fast as Samsung’s T5 for reads with an identical write performance.

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  • Viktar

    25Mb/s read / write IRL over USB 2.0