Raid is always faster but you don't get a benifit with seek times.
My buddy has a nearly identical machine to mine except he has 2 raptors in a raid-0, I have a single 15K scsi drive.
My scsi beats his machine into rounds 100% of the time.
So bandwidth (Transfer speed of raid-0) is not the only factor seek time is the major player. When a map is loaded your not transfering a single 1G file from one portion of the drive to another. Your accessing a bunch of small files and reading them into memory.
The WD 3G drives have 7200 RPM spindle speed compared to the raptors 10K, seek times really count for alot.
Also the raptors are not that loud, if your machine is ultra quite now you may hear the Raptors but it's probably not going to bother you.
Check out this article...
http://www23.tomshardware.com/storage.h … p;chart=32For comparision purposes my 15K scsi has a 3ms seek time compared to the raptors 8ms and that WD's 12ms.
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You have two options a raid-0 of two identical 7200rpm drives or buying Raptor.
raid-0 option:
- Faster overall reading of individual files
- 12ms seek time (not great)
- data relyability not good since if either of the drives fail you loose everything
- Requires CPU processor time to interpret the strip (raid-0)
current drive with raptor
- 8ms seek time quite a bit better
- better data relyability (you could actually backup important data from one drive to the other)
- little to no cpu overhead
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My money would be on the raptor loading into games faster than the raid-0, could be wrong but it would be close either way. Personally I'd never buy another 7200rpm drive for anything other than storage or downloading p0rn. If they would only wake-up and make 15K raptors, but by that time 22k scsi will probably be out.
Last edited by vjs (2006-03-30 15:22:02)