WD My Passport Slim 1TB Portable Hard Drive Review

HD Tune Pro 5.50 Benchmarking

HD Tune Pro 5.50 is an extended version of HD Tune which includes many new features such as write benchmark, secure erasing, AAM setting, folder usage view, disk monitor, command line parameters and file benchmark.

Read Performance Testing

Benchmark Results: The WD My Passport Slim 1TB portable drive had an average read speed of 81.8MB/s with a burst speed of 143.7MB/s and an access time of 16.3ms. The read performance is fairly linear and started out at 107MB/s on the outer edges of the platters before slowing to ~50MB/s on the inner sectors.

Benchmark Results: The WD My Passport Slim 1TB random access benchmark comes in with some pretty solid results and we were impressed that the max access time was under 70ms for each transfer size.

Write Performance Testing

Benchmark Results: The WD My Passport Slim 1TB had an average write speed of 77.7MB/s with a burst speed of 124.0MB/s and an access time of 15.9ms.

Benchmark Results: The WD My Passport Slim 1TB random access write benchmark came in with solid scores for a rotational drive.

File Testing

Benchmark Results: The file benchmark results look good with greater than 100 MB/s writes for most file sizes over 16KB. Our real world testing and file backups bounced around a bit, but for the most part were between 75-100MB/s. The drive also felt warm to the touch during use, but never got much hotter than 31-32C during use.