[rescue] Mac Appliance

joshua d boyd rescue at sunhelp.org
Fri Aug 3 08:35:44 CDT 2001


On Fri, Aug 03, 2001 at 09:24:57AM -0400, Dave McGuire wrote:
> > Are the 80s and 400s technically Sun3x machines?  I was assuming that like
> 
>   sun3x is the name of the "kernel architecture".  The name of the
> computers is still Sun3.  When we talk about SPARCstations, we
> generally don't say "I've got this sun4u here, and while hacking on my
> sun4c blah blah".

I see.
 
> > the jump from 386 to 486 that going from 020 to 030 would be significant,
> 
>   There isn't a significant speed difference between the 68020 and the
> 68030.  When I have some time later today I will dig out the books and
> get the specifics.

Well then, what was the point of the shift?  I mean, if spead is fine why
not just crank the clock on the existing chip?
 
> > even if the clock doesn't really change.  I know I much prefered a 33mhz
> > 486 to the 40mhz 386 I used.  I'm sure there are other differences.  I'm
> 
>   Of course there's no correlation between 68020/68030 and 80386/80486
> though.
> 
>   If we were talking about the performance of the 68000 or 68010
> vs. 68020, or 68030 vs. 68040, there'd be a much MUCH bigger
> difference.

Figures.  I should have expected all my intel experiences to lead me wrong
in commenting about relative speeds of other chips and platforms.

-- 
Joshua D. Boyd



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