Performance in CrystalDiskMark
Let’s start with CrystalDiskMark. There are two screenshots for each drive. The first one refers to USB 2.0 connection and the second one, to USB 3.0.
It’s easy to note that this old and rather slow USB 2.0 drive improves its read speed (by an average 10%) when connected to the USB 3.0 controller but its write speed remains roughly the same. This is rather unexpected. We thought the USB 2.0 interface had already been polished off so well that there would be no such difference between the controllers.
Corsair Survivor GTR
The Corsair is quite fast for a USB 2.0 flash drive and enjoys a performance boost when connected to the USB 3.0 controller. Its sequential read speed and its speed of reading 512KB data blocks improve by about 20%, and it reads small files twice faster than with USB 2.0! Like with the ADATA drive, its write performance doesn’t change much except that its sequential write speed grows by 10% on the USB 3.0 controller.
Being a native USB 3.0 drive, the ED-01 works much faster on USB 3.0 than on USB 2.0. However, we can see it having problems with writing: the native mode is faster than the legacy one at sequential writing only. The drive has a very low speed of writing 512KB data blocks even compared to its own performance in the same test with the USB 2.0 controller.
Kingston DataTraveler Ultimate 3.0
The second USB 3.0 drive is slower than the first one in terms of read speed when connected via USB 2.0 but leaves the competitor behind with USB 3.0. It also proves to be much faster than the rest of the tested drives in terms of writing, especially small files.