770GTX and 780GTX not (safely) possible on current Mac Pro

Discussion in 'Mac Pro' started by rabidz7, May 19, 2013.

  1. rabidz7 macrumors 65816

    rabidz7

    Joined:
    Jun 24, 2012
    Location:
    Ohio
    #1
  2. Topper macrumors 65816

    Topper

    Joined:
    Jun 17, 2007
    #2
     
  3. ElderBrE macrumors regular

    ElderBrE

    Joined:
    Apr 14, 2004
    #3
     
  4. ashurao macrumors member

    ashurao

    Joined:
    May 13, 2012
    Location:
    Paris, France
    #4
    s…t ... I was hoping to change my 570 with a 780 or 770 for Octane render. I could not.
    I'm tired of being blocked by the mac pro's power supply.
     
  5. Asgorath macrumors 65816

    Joined:
    Mar 30, 2012
    #5
    So, just get a 680? Or something like this?
     
  6. Wardenski macrumors 6502

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    Jan 22, 2012
    #6
    I have retired from upgrading my Mac Pro, too much effort to use the latest GPUs.

    I am tempted to put together a smallish PC for gaming later in the year, maybe a 790 when it comes out but there aren't many games that challenge my 5870 so its probably not worth it.:confused:
     
  7. ashurao macrumors member

    ashurao

    Joined:
    May 13, 2012
    Location:
    Paris, France
    #7
    I wanted to install a 780 because there is not much difference in power (in octane render) between 680 and 570.
    GK 110 has more power for GPGPU that GK 104
     
  8. lewdvig macrumors 65816

    Joined:
    Jan 1, 2002
    Location:
    South Pole
    #8
    Effort = turn off mac, open case, install card, connect power, close case, boot, install cuda driver.

    Pretty easy IMO.

    Early GTX 680 cards had 6+8 and then board makers came out with 6+6 designs.

    IMO we will see the same thing with the 770.

    And since the 770 is only a better clocked 680, I would save a few bucks and get a 680 cheap on CL.
     
  9. Inconsequential macrumors 68000

    Joined:
    Sep 12, 2007
    #9
    It's not the PSU, it's the lack of a 8-pin power trace.

    Theoretically you could merge the 2x6 pins into a single large connector and then split it out into a 6 and 8-pin in order to share the added 8-pin load over both traces.
     

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