Re: PPC vrs Pent ][

Robert Harley (
Tue, 13 May 1997 11:12:53 +0200 (MET DST)

CobraBoy suggested:

[a Photoshop match between various PPC- and Intel-based machines]

Those times are pretty scary! For instance the times for opening a
2.5MB JPEG ranged from 21 seconds to 32... On this Alpha I timed
launching xv, opening a 2MB JPEG (decompresses to 9MB), smoothing it,
resizing it to 51.3% and saving it as raw RGB. The total elapsed time
(including redraws of course) was 11 seconds i.e., 4 seconds CPU time
and 7 seconds waiting for me to click on the buttons as fast as I could.

Presumably the JPEG decompression on the PCs used Intel's MMX DCT, the
one that is so imprecise that it fails the relevant IEEE standard.
Wonder why they don't trumpet about that in their MMX publicity blurb???

-- R-dude.