Mac compatible PCI cards Thunderbolt OK?

Discussion in 'Mac Accessories' started by adagio, May 9, 2013.

  1. adagio, May 9, 2013
    Last edited: May 9, 2013

    adagio macrumors member

    Joined:
    Oct 14, 2009
    #1
    I'm on an iMac but would like to make use of a PCI card via a Thunderbolt chassis. The card is Mac compatible, but I've read conflicting reports on whether a mac compatible card can be used in this way. Drivers might not be Thunderbolt compatible. Seems odd, as if not what's the point of selling a chassis?

    I've read a bit more, seems I've missed an important bit of relevant info, it's a video card I want to use the GPU on.
     
  2. FreakinEurekan macrumors 68040

    FreakinEurekan

    Joined:
    Sep 8, 2011
    Location:
    Eureka Springs, Arkansas
    #2
    There's really a hardware limitation there. Thunderbolt is fast, but not THAT fast. Basically you get 4X PCIe performance from a Thunderbolt PCIe chassis - and while that's fast enough for a lot of stuff, video isn't one of them.
     
  3. Giuly, May 9, 2013
    Last edited: May 9, 2013

    Giuly macrumors 68040

    Giuly

    #3
    Unfortunately, those chassis support all PCIe cards except for graphics cards.


    There are lots of problems with Thunderbolt-attached graphics, but bandwidth isn't a major one.
    [​IMG][​IMG]
    (That's a Radeon HD5970 on a Hexa-Core CPU)
     
  4. adagio thread starter macrumors member

    Joined:
    Oct 14, 2009
    #4
    I'm interesting in bitmining, so throughput speed might not be such an issue but it does appear that there is an absence of thunderbolt aware drivers, even for Mac compatible cards.
     

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