On Nov 25, 11:13 am, Scott Holder <[email protected]> wrote:
> If you're looking to do some gaming with the fancier later games, or
> Photoshop, or some other specific things, it would have a pretty huge
> impact.
>
I disagree with this from experience. Things like filters in Photoshop
which are impossible (disallowed) without the FPU or impossible slow
do work however they are still much too slow for any practical use,
even with smallish pictures (like 320x240 -- which might appear on a
web page).
For any real FPU usage better to have even one of the earliest
powerpc. Those machines that came with any '040 will accept a ppc
upgrade. The FPU is like 10X faster on ppc.
The separate chip FPU on the '30 machines was a more significant gain
(for them at the time). (?partly because it was a true coprocessor,
like the AV model DSP chips?).
And BTW there was also a separate MMU chip for earlier MMU-less 68k (?
'020?)
> J. Alexander Jacocks wrote:
> > On a connected topic, how much of a difference in performance would it
> > make, to replace the 25mHz 68LC040 in a Quadra 605 with a full '040?
>
> > Thanks!
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