Synthetic tests are useful to gauge overall performance of a product such as this, but the real proof is in the real world, day to day testing. These aren't totally scientific, but they are a solid indication of what you can expect if you bought one for a system build.
Copying a 1GB video file took around 2 seconds, according to our digital watch, verified with repeated runs. Mixed file and folder performance was also exceptionally potent – duplicating a 3GB folder in around 12 seconds. To get things into perspective this took around 40 seconds with a standard high performance SSD drive and just short of 5 minutes with a performance mechanical unit.