The read speeds easily met the 200MB/s read speed rating of the drive, while the write speeds fell short of the 160MB/s. The benchmark numbers just give an idea how the performance should stack up between drives. What really matters is how the drive feels when you are using it. The use of a Jmicron controller initially was a concern, but after using the drive in my HP Mini netbook, the drive met my expectations and more. The drive's performance was fluid and did not suffer any stuttering.