66mhz or 33mhz?

Discussion in 'Macintosh Computers' started by blue&whiteman, Apr 17, 2004.

  1. macrumors 65816


    Nov 30, 2003
    I went to my local mac dealer today and bought a sonnet ata 133 pci card.

    I would love some feedback on whether I should put in in a 33mhz slot (all 3 of my 33mhz slots are free so whatever goes there will not be sharing the single 33mhz bus that all 3 slots use) or swap out my video and put the ata card in the 66mhz slot?

    so the question in simpler terms is will I get better performance with 33mhz video 66mhz ata card or the other way around?

    I want to be sure I choose the right combo.
  2. macrumors 6502a


    Mar 3, 2003
    Orlando, FL
    Well, most hard drives (even those that do support ATA-133) can't actually achieve that transfer rate without being in a RAID setup. So unless you are going to do that you definitely shouldn't bother to swap with your video card. Beyond that, the theoretical limit on PCI-33 is 133MB/s (32-bits by 33Mhz) so it is a least a match for the bandwidth on ATA-133. You might get better performance on PCI-66, but I doubt that it will be worth the reduction in quality of your video setup.
  3. thread starter macrumors 65816


    Nov 30, 2003
    thanks for the info. my 33mhz slots are 64 bit, not 32.

    blue&whites have 1 66mhz 32 bit slot for graphics and 3 33mhz 64 bit slots.

    I will keep the video card where it is then. the quartz extreme pci hack I use would really choke up in a 33mhz slot I think. runs quite well in the 66mhz slot.

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