[DM-MUG] USB 2.0 vs firewire (was: new albook codename)
jim Lagnese
dmmug@dmmug.org
Thu, 04 Mar 2004 10:35:49 -0600
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Actually, what I said supports your premise. They aren't independent.
--
James D. Lagnese
Consultant
PowerPC Pro Consulting
AIM: macmanlag
Mailto:jlagnese@mac.com
http://www.powerpcpro.com/
(Phone) 515-987-0546
> From: Jon Thompson <jon@mac-consultant.com>
> Reply-To: dmmug@dmmug.org
> Date: Thu, 04 Mar 2004 09:46:06 -0600
> To: dmmug@dmmug.org
> Subject: [DM-MUG] USB 2.0 vs firewire (was: new albook codename)
>
> Actually, this is not the entire story...
>
> USB 2 is 460Mbps BURST. What that means is that it occasionally
> attains 460, but averages much lower.
>
> Firewire (400 or 800) reports the bus' sustained speed. So you get the
> 400 or 800Mbps as an average speed.
>
> What this results in is that Firewire is a faster interface, which
> Intel attempted to take down with the FUD for USB2.
> --
> Jon Thompson
> Jon Thompson Consulting
> jon@mac-consultant.com
> (515) 360-0250
> On Feb 17, 2004, at 1:22 PM, <alsplace@pobox.com> wrote:
>
>> Which, sadly, explains why my much-$$$ 1.25GHz G4 is slower than my
>> friend's PC in this regards. Darnit ;-) Thanks for the insight.
>>
>> -----Original Message-----
>> From: jim Lagnese <jlagnese@mac.com>
>> To: dmmug@dmmug.org
>> Sent: Tue, 17 Feb 2004 13:17:42 -0600
>> Subject: Re: [DM-MUG] new albook codename
>>
>> USB 2.0 is not busmaster and so it's speed depends on the performance
>> of the
>> computer. FW is busmaster, so it doesn't matter so much or at all.
>> _______________________________________________
>> Dmmug mailing list
>> Dmmug@dmmug.org
>> http://cialug.org/mailman/listinfo/dmmug
>>
>
> _______________________________________________
> Dmmug mailing list
> Dmmug@dmmug.org
> http://cialug.org/mailman/listinfo/dmmug
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<TITLE>Re: [DM-MUG] USB 2.0 vs firewire (was: new albook codename)</TITLE>
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<FONT FACE=3D"Arial"><SPAN STYLE=3D'font-size:18.0px'>Actually, what I said sup=
ports your premise. They aren't independent. <BR>
<BR>
<BR>
</SPAN></FONT><FONT SIZE=3D"1"><FONT FACE=3D"Charcoal"><SPAN STYLE=3D'font-size:1=
2.0px'>-- <BR>
=14=14=14=14=14=14=14=14=14=14=14=14=14=14=14=14=14=14<BR>
James D. Lagnese<BR>
Consultant<BR>
PowerPC Pro Consulting<BR>
AIM: macmanlag<BR>
<a href=3D"Mailto:jlagnese@mac.com">Mailto:jlagnese@mac.com</a><BR>
<a href=3D"http://www.powerpcpro.com/">http://www.powerpcpro.com/</a><BR>
(Phone) 515-987-0546<BR>
=14=14=14=14=14=14=14=14=14=14=14=14=14=14=14=14=14=14<BR>
<BR>
<BR>
<BR>
</SPAN></FONT></FONT><FONT FACE=3D"Arial"><SPAN STYLE=3D'font-size:18.0px'><BR>
<BR>
<FONT COLOR=3D"#000098">> From: Jon Thompson <jon@mac-consultant.com>=
;<BR>
> Reply-To: dmmug@dmmug.org<BR>
> Date: Thu, 04 Mar 2004 09:46:06 -0600<BR>
> To: dmmug@dmmug.org<BR>
> Subject: [DM-MUG] USB 2.0 vs firewire (was: new albook codename)<BR>
> <BR>
> Actually, this is not the entire story...<BR>
> <BR>
> USB 2 is 460Mbps BURST. What that means is that it occasionally =
<BR>
> attains 460, but averages much lower.<BR>
> <BR>
> Firewire (400 or 800) reports the bus' sustained speed. So you g=
et the <BR>
> 400 or 800Mbps as an average speed.<BR>
> <BR>
> What this results in is that Firewire is a faster interface, which <BR=
>
> Intel attempted to take down with the FUD for USB2.<BR>
> -- <BR>
> Jon Thompson<BR>
> Jon Thompson Consulting<BR>
> jon@mac-consultant.com<BR>
> (515) 360-0250<BR>
> On Feb 17, 2004, at 1:22 PM, <alsplace@pobox.com> wrote:<BR>
> <BR>
</FONT><FONT COLOR=3D"#006600">>> Which, sadly, explains why my much-$$=
$ 1.25GHz G4 is slower than my <BR>
>> friend's PC in this regards. Darnit ;-) Thanks for the=
insight.<BR>
>> <BR>
>> -----Original Message-----<BR>
>> From: jim Lagnese <jlagnese@mac.com><BR>
>> To: dmmug@dmmug.org<BR>
>> Sent: Tue, 17 Feb 2004 13:17:42 -0600<BR>
>> Subject: Re: [DM-MUG] new albook codename<BR>
>> <BR>
>> USB 2.0 is not busmaster and so it's speed depends on the performa=
nce <BR>
>> of the<BR>
>> computer. FW is busmaster, so it doesn't matter so much or at all.=
<BR>
>> _______________________________________________<BR>
>> Dmmug mailing list<BR>
>> Dmmug@dmmug.org<BR>
>> <a href=3D"http://cialug.org/mailman/listinfo/dmmug">http://cialug.o=
rg/mailman/listinfo/dmmug</a><BR>
>> <BR>
</FONT><FONT COLOR=3D"#000098">> <BR>
> _______________________________________________<BR>
> Dmmug mailing list<BR>
> Dmmug@dmmug.org<BR>
> <a href=3D"http://cialug.org/mailman/listinfo/dmmug">http://cialug.org/m=
ailman/listinfo/dmmug</a><BR>
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