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Subject: Re: usb2 on the archos
From: David McIntyre (plugh_at_mudbarn.com)
Date: 2003-09-10


The specs would show that USB 2 is faster than Firewire. The actual benchmarks
show that Firewire is faster by a pretty broad margin. As far as hard drive
access goes, drive transfer rates are measured in megabytes/sec, as the
communication to the drive runs in parallel. Serial data communication, like
Firewire, USB, and Ethernet, measure speeds in megabits/sec.

On Wed, Sep 10, 2003 at 10:22:14AM -0700, Gvillo, Mike wrote:
>
> Good post. I said Firewire was faster then USB 2.0 without knowing what
> I was talking about.
>
> -----Original Message-----
> From: John Stevenson [mailto:steveo1967_at_yahoo.com]
> Sent: Wednesday, September 10, 2003 1:06 AM
> To: rockbox_at_cool.haxx.se
> Subject: RE: usb2 on the archos
>
>
>
>
> "Gvillo, Mike" <MXG_at_dolby.com> wrote:
>
>
> I wouldn't worry about it too much. To take the example
> to the extreme
> the iPod has firewire which is much faster then USB 2.0
> but you only
> really ever do huge upload/downloads once or twice,
> making that feature
> fairly minor. When you do have to do a large transfer,
> just set it up
> to go overnight. A usable interface is much more
> important.
>
> I disagree with the point that firewire is quicker than
> USB2.0.
>
> I am afraid it is not quicker, see table below for
> differences in speed between different protocols
>
>
>
> Protocol MB/s
> IrDA-Control 0.009
> Serial 0.02
> Parallel 1.0
> Bluetooth 1.1 0.125
> Bluetooth 2 2 to 12
> USB 1.1 1.5
> USB 2.0 60
> SCSI 1 5
> Fast SCSI 2 10
> Fast Wide SCSI 2 20
> Ultra SCSI 20
> Ultra Wide SCSI 40
> Ultra2 SCSI 80
> Ultra 160 SCSI 160
> FireWire (IEEE 1394) 50
> FireWire (IEEE 1394b) 100
>
> Note 1394b is not that common yet!
>
> regards
>
>
>
> John
>
>
>
>
>
>
>
>
>
>
>
>
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-- 
David McIntyre         plugh_at_mudbarn.com        http://www.mudbarn.com
PGP Key fingerprint = CAB5 A73A 43FA 19E3 449D  20B8 25D7 FA84 8847 D6A7
http://www.mudbarn.com/~plugh/plughinfo.txt for geek code, pgp key, etc. 



Page was last modified "Jan 10 2012" The Rockbox Crew
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