At 11:09 AM -0700 9/18/2009, John Niven wrote: >--- On Fri, 9/18/09, Dan <[email protected]> wrote: > > A 33-MHz PCI bus, 32-bits wide, does aro 132 MB/sec. > > A 50-MHz System bus, 32-bits wide, does aro 200 MB/sec. > >So a 33-MHz PCI bus, 64-bits wide, does 264 MB/sec?
PCI 64-bit/33 MHz is 266.7 MB/s PCI 32-bit/66 MHz is 266.7 MB/s >And PC100 SDRAM (3.3V, unbuffered, 64-bit, 168-pin, 100 MHz) does 400 MB/sec? Remember - PCI bus is for *peripheral* interconnects. It is NOT the memory/system bus. Peak bandwidth for a PC-100 SDRAM is 800 MB/sec (100 MHz * 8 byte latch). - Dan. -- - Psychoceramic Emeritus; South Jersey, USA, Earth. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
