Seagate Desktop HDD.15 4TB vs WD Black 4TB Hard Drive Review

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HD Tune v5.50 – Random Access

The random access read and write test is a very important performance area to look at on solid state drives and hard drives as some controllers have problems with random writes. In recent years the controllers have improved and the firmware has been better optimized for random read and write performance.

Random Access Read Test Results

WD Black WD4001FAEX 4TB:

wd-hdtune-random-read

Seagate ST4000DM000 4TB:

  seagate-hdtune-racc

Benchmark Results: When it comes to the random access read performance test the WD Black 4TB 3.5″ desktop hard drive was in the lead when it came to IOPS, average access times, maximum access times and average speed. The Seagate 4TB desktop hard drive wasn’t too far behind though.

Random Access Write Test Results:

WD Black WD4001FAEX 4TB:

wd-hdtune-random-write

Seagate ST4000DM000 4TB:

seagate-hdtune-wacc

 

Benchmark Results: The write performance test results of the Western Digital Black 4TB hard drive had a much higher IOPS and a higher overall average speed in the random access performance test in HD Tune Pro v5.50. At the 4KB file size you are talking about 223 IOPS on the WD Black 4TB versus 96 IOPS on the Seagate Desktop HDD 4TB.  That puts the WD Black 4TB at more than double the performance in pretty much all of the random access tests!

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