You can use Quartz Extreme on PCI video cards. Even Rage 3D cards
support Quartz Extreme. It's Core Image that you can't get in most PCI
cards, but the nVidia FX5200 PCI that is normally found in the Xserve
G5 does support both. The problem with the FX5200 is that it doesn't
support 3d in classic, so if you play a lot of games in classic you're
better off with a Radeon 9200.


On May 29, 8:59 pm, Larry Stotler <[email protected]> wrote:
> On May 29, 3:15 pm, "ah...clem" <[email protected]> wrote:
>
> > i don't think so.  while Sonnet did make a G4/1gig processor upgrade
> > (as well as G4/700 and G4/800), these were NOT ZIF processors.  rather
> > hey were what are usually referred to "PCI upgrades," ie, daughter
> > cards for the 72xx-96xx Macs and selected clones.  AFAIK, the fastest
> > ZIF processor Sonnet ever made that is a direct plug-in for a B&W was
> > the G4/500.  there *may* have been a G4/600 ZIF made by Gigadesigns or
> > Newertech, or someone else, but i don't remember for sure.
>
> Sonnet made upgrades for the PCI Macs(73/75/76/85/86/95/9600s).  They
> were called the Crescendo/PCI.
>
> http://www.sonnettech.com/product/crescendo_pci.html
>
> The also made upgrades for the B&W and Yikes!.  They were called the
> Encore/ZIF:
>
> http://www.sonnettech.com/product/encore.html
>
> > however, larry IS absolutely correct in pointing out that the Sonnet
> > G4 upgrade WILL drop the motherboard bus speed from 100 to 66 MHz.
> > IMBWB, i *think* this is true of all third party G4 upgrades of all
> > speeds, and even Apple G4 processors pulled from a Yikes.
>
> Partly Correct.  The bug involves anything over the 10x multiplier
> from what I understand.  However, I have a G4/450 ZIF in my B&W
> overclocked to 500Mhz using the 100Mhz bus.
>
> > as for performance, the sad truth is that very few programs ever made
> > extensive use of the Altivec processing capabilities.  even those that
> > do will not suffer too terribly when run on a G3, compared to the
> > limitation of slower clockspeed on both the mobo and processor.  i
> > have the Powerlogix G3/1gig in a blue and white, and it measurably
> > outperforms a G4/400 by more than 2 to 1 on real world comparisons.
> > the G3/1gig also has a larger L2 cache (1MB), which gives a big boost
> > to apps which are floatiing-point arithmetic intensive.
>
> Starting with Tiger(I believe), the desktop makes use of the altivec
> to an extent.  Of course, you can't use Quartz Extreme on a PCI video
> card, so that's probably not as big of an issue.

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