The next diagram is about writing the 100MB file. The absolute speeds are higher than in the first pattern, but the Sony USD5G is still behind its opponent.

Besides the standard set of tests, I carried out a small investigation of the dependence of the speed of a miniature hard drive on the size of the processed file.

As you know, the speed of a hard disk drive does depend on the size of the file, unlike with drives based on flash memory. But how strong is this dependence? So I also tested the Sony USD5G using 400 and 900MB files.

The first diagram is about reading the files. As you see, the performance of the drive grows up as the size of the processed file increases from 100 to 900 megabytes. Yet, the value of this growth is rather small.

The second diagram is somewhat more interesting: you can see that the performance of the drive generally increases on larger files, but the drive processed the 400MB file faster than the 900MB one.