RAID 0 seldom helps anything IMO. The performance gained most is in aerial density, seek times (local), and RPM of the newer and better drives themselves. What makes RAID shine is in random and sequential access times.
It still only makes sense to use RAID0 as a server oriented worker-bee, vise what us desktop users think is "real work" (editing video? Ummm...burning DVD's? No, wait! Doom3!!
Hardly work; and still pretty damned good with a single 150 S/ATA channel).
But, I do use RAID0. Why? Because I can. And I like turning 2 Raptors into a "normal" capacity drive. But I'll be damned to admit that it does one bit of good for what I do with my PC. Sorry, but I'll have to say that you're not the only one wasting money on arrays (other than brag rights to sound like we're hard-core).
StorageReview.com / Stop the RAID0 Insanity! 02 July 2004
In the “SR Gaming DriveMark… a 4 drive Cheetah array.. lags a single Raptor running on the "dumbest" of SATA controllers by a margin of 9%.AnadTech's own look on RAID0
If you haven't gotten the hint by now, we'll spell it out for you: there is no place, and no need for a RAID-0 array on a desktop computer.
But this won't stop the thousands of fly-by-night geeks from feeling better by thrashing two drives at once; or telling chicks at bars about their awesome RAID-0 array they have back at the pad.