Both drives are pretty fast. Note that I have the NCQ one as my operating system drive. I used to have the 200gb as my primary drive. If I am downloading something, transferring a file, have multiple apps running, and then open another app the NCQ drive is more responsive. Don't expect miracles but it is. Unless your apps are accessing the drive then you really don't need it. More storage would be better. If you think you might boot off of the drive at some point then get the NCQ one as long as your controller is NCQ enabled. Some people will have negative things to say about NCQ, but I can tell a difference in my environment. NCQ benefits are not there if the drive is just being used as storage and accessed infrequently.