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.
|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|
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.