Kingston DT Ultimate 3.0 32GB

Reviews, Storage


To test this memory stick, I used SiSoft Sandra to measure how many IOPs(Input/Output Operations per Second) the device gave both in USB 2 and USB 3 mode with files of various sizes.

I also used a real world test consisting of transferring 1GB of data to the drive and timing it with a stopwatch. This was done using both USB 2 and 3 interfaces also and the test was run 3 times, taking an average at the end.


SiSoft Sandra

USB 2.0 USB 3.0
Read – 64kB 399.1IOPS 842.2IOPS
Write – 64kB 148.5IOPS 446.2IOPS
Read – 1MB 31.6IOPS 68IOPS
Write – 1MB 25.4IOPS 58IOPS
Read – 16MB 2.0IOPS 4IOPS
Write – 16MB 1.6IOPS 3.1IOPS
USB 2.0 USB 3.0
Read – 64kB 1.58MB/s 52.64MB/s
Write – 64kB 9.28MB/s 27.89MB/s
Read – 1MB 31.63MB/s 68MB/s
Write – 1MB 25.4MB/s 58MB/s
Read – 16MB 32.68MB/s 63.24MB/s
Write 16MB 26.23MB/s 50.1MB/s

SiSoft Sandra seemed to be giving me a lower read speed using USB 3.0 than what Kingston said it should be capable of. I loaded up HD Tach and HD Tune to get some read speeds and see if they gave me the same result.

HD Tach recorded the burst speed at 94.6MB/s and an average read speed of 86MB/s and HD Tune came back with an average of 81.8MB/s. Both programs gave me a result slightly higher than the 80MB/s Kingston claimed.

So according to the numbers, using the drive in a USB 3.0 port is around twice as quick as if you were using it in a USB 2.0 port. Quite impressive but what about in reality?

1GB File Transfer

Time Taken (Average)
USB 2.0 37.1 Seconds
USB 3.0 17.3 Seconds

In the real world test you can also quite clearly see the improvement over USB 2.0 with the time taken to transfer 1GB of data using USB 3.0 being a few seconds under half the time taken by the drive using USB 2.0.


The drive will cost you around £94.99 and however you look at it, that’s expensive. You can pick up a 32Gb flash drive now for around £30 if you look around, you’d be paying around 3x more for twice the speed. Although USB 3 drives are new and there isn’t that many of them around at the minute compared to their USB 2 counterparts and I’d expect them to drop to a more competitive price once they start to take off more.

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Last modified: March 7, 2011

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