> > > > > > > slow AGP bus > > > > > > > > > > > > OGC will have an even slower bus. > > > > > > > > > > Depends on how many PCIe channels we design into it. There will be at > > > > > least one (about as fast as PCI-32 66MHz). > > > > > > > > So OGC is PCIe now? Last I read it was going to be PCI. > > > > > > The engineer who has been working on our PCB for us has expressed > > > interest in doing a PCIe variant of the board. A tentative plan has > > > been proposed, and a PCI-PCIe bridge chip has been selected. > > > > So the ASIC will be PCIe and the PCI board uses a PCI-PCIe bridge chip? > > > > Doing it the other way around (ASIC talks PCI and the PCIe board uses bridge > > chip) doesn't makes sense, as the PCIe board would still have the PCI > > bottleneck. > > If we stick with PCIe 1x, then it makes no difference since 66MHz PCI > has roughly the same bandwidth (more in potential, less in practice).
Except that in the real world PCI slots are only 33 MHz. I just checked the manual for my newest machine (AMD64 PCIe + PCI, I/O out the wazoo) and the PCI slots are only 33 MHz. _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
