On 1/30/05 11:13 AM, "Dan K" <[EMAIL PROTECTED]> Spew into the Cybertrough:
> thread was Re: Mac Mini > > "Tom" <[EMAIL PROTECTED]> wrote: >>> You are correct, but to be clear. 400 M/bit per sec, not 400 M/Bytes >>> per second. Big B is Bytes, little b is bits. >>> >>> USB2.0 is 480Mb/sec, which is still slower than FW due to excessive >>> overhead. > To which Kyle Hansen <[EMAIL PROTECTED]> >> FW400 (400Mbps) and USB 2.0 (480Mbps) are the same in real world >> speed/throughput tests. And what do you mean when you say "excessive >> overhead?" I have never heard that term in the computing world. >> >> FW800 is where it's at. > No doubt Kyle, but . . . > > IIRC Apple's FireWire data transfer protocols are closely related to > (derived from?) SCSI. SCSI (and FireWire) adapters use much less of a > host system's other resources than does USB. It has nothing to do with SCSI. FireWire is a cross-platform implementation of the high-speed serial data bus Architecture. Same as USB 1.1 and 2.0. > *Hi-Speed USB 2.0 uses a "Master-Slave" architecture in which the > computer handles all arbitration functions and dictates data flow to, > from and between the attached peripherals (adding additional system > overhead and resulting in slower data flow control) > [/quote] > > Seriously, are there any big-data users out there who prefer USB 2.0 over > FireWire400 for big data transfers? I agree with you. I use FW 400, but USB 2 is not as bad as everyone leads on. Some even say that Apple writes shoddy USB 2 drivers on purpose to make Firewire look more appealing. I have tested USB 2 on my G5 dual 2.5 and my AMD XP3200+ machine and USB 2 is appreciably faster on the PC than it is on my G5. Go figure. Firewire delivers 1.5 amps of power where USB 2 only delivers 1.0. USB 2 can handle 127 devices where FW can only handle 63. Firewire is better for sustained read/writes IMHO. Firewire uses a Peer-to-Peer architecture where USB 2 uses Host/Slave. That makes USB 2 easier to use, but slightly slower than rated. Firewire is more expensive, and USB 2 is a standard on the PC side of the digital river. There are a lot of Pro's and Con's involved in this arena. Kyle Hansen -- "The best way out is always through." -- Robert Frost -- G-List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- We have Apple Refurbished Monitors in stock! | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-List list info: <http://lowendmac.com/lists/g-list.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/g-list%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
