Originally Posted by tats
I did some "tests" when I first got my Intel drive regarding WoW load times - I started two instances of WoW one off my original Seagate 1TB 7200 and the other off the Intel. I would log into both (different accounts) and hit enter ~1 sec apart. The SSD instance would be fully loaded (all characters, textures, etc) before the mechanical drive had gotten to 75% on the loading screen. So for games where you are contantly reading as the map and other things get updated an SSD will be outrageously faster but I would expect a RAID to be noticibly faster than a mech drive as well.
It depends on the drive speeds. Yes, an SSD is going to be faster than any mechanical drive within reason, however every mechanical drive you add to the array increases performance. If you have the money, an SSD is probably a better bet, but with a mechanical RAID0 array, you will get improved speeds and a TON of storage space.