We tested the read and write speed of the Kingston DataTraveler Ultimate GT 2TB for this article. We let it read and write both a large mount of smaller files of 5 MB, and bigger files of 10 GB. The last test is similar to common backing up Full-HD movies compressed with the x264 codec. This gives us a good look at real-world performance.
We also ran a series of tests with the CrystalDiskMark test suite, where we measured both the sequential read and write performance, and the performance with smaller data blocks. These aren't very important for USB sticks, unless you're planning to run an operating system from a stick. We don't recommend doing this for longer periods of times, with the lifetime of the stick in mind, however it can be useful for diagnostic purposes.
The real-world results together have also been converted, based on the arithmetic mean, to a performance score. In our last big test the Sandisk Cruzer Extreme 64GB managed to achieve 100 points. Similar 'large' sticks can be found in the graphs, the Kingston stick we tested today has red bars.