On May 27, 6:23 pm, Larry Stotler <larrystot...@gmail.com> wrote: > > Sonnet made a 1Ghz G4 upgrade. Unfortunately, it drops the bus speed > from 100Mhz to 66Mhz due to a bug in the chipset. These arent > available new tho. >
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. 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. 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. jt -- 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 g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
