Leon Sargent <[EMAIL PROTECTED]> writes: > >I was wondering if there is a difference in speed between my 4400's ATA 33 >and my new 7300's 50 pin SCSI. Are they about the same as far as R/W goes?
Probably. The ATA33 bus has a maximum speed of 33 MB/s whereas the 50 pin (narrow) SCSI bus on most PCI PowerMacs has a maximum speed of 10 MB/s. That may sound like a big difference but it's probably the case that their disk transfer speeds are constrained by the hard drives they're using. The original hard drives that shipped with the 4400 and 7300 were probably capable of delivering data at the rate of 8-12 MB/s. With newer hard drives, you might get a higher peak rate out of the ATA33 bus, but SCSI buses tend to deliver more even sustained performance (which can be important if you're doing audio or video). Hope this helps, -Jeff [EMAIL PROTECTED] -- "You can't brew a premium lager with a kool-aid mentality." --Harold Green in _The_Red_Green_Show_ -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/pci-powermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
