there was a thread like this last week. Basically it dpeends on what you are using it for. If you are worried about booting windows, loading apps and games the access time advantage for the raptor will give it the win. If you are reading/writing large files (ie video recording/editing, especialy uncompressed video) the raid will win. Outside of a raid 6 15,000 rpm sas array there are always tradeoffs in different applications (and even with that there are some things that a ssd (or ssd array) would be faster in). So the question is not which would be faster? but which would be faster for x (where x is the tasks that you are most worried about).