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. -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list
