Mac Pro 4,1 GPU bottleneck

Discussion in 'Mac Pro' started by CuamckuyKot, Nov 2, 2014.

  1. CuamckuyKot macrumors member

    CuamckuyKot

    Joined:
    Aug 21, 2009
    Location:
    Russia, Saint-Petersburg
    #1
    I've 2009 Mac Pro with 2xNehalem 2.66GHz processors.

    I've just tested GTX 660 (even EFI-flashed), GTX 970 and GTX 750Ti.

    What I've found out – they work at nearly 2/3 of what they could be.

    I've compared with PC results of Unigine Heaven and Valley test and get that it is so.

    How can we get GTX-card works for the full power?

    May be the trouble is in processor and upgrade 4,1->5,1 with 2x5650 Xeon will make the deal?
     
  2. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #2
    You get your results from bootcamp?
     
  3. GameFreak348 macrumors regular

    Joined:
    Feb 28, 2014
    #3
    trust me, its mac os x. I ran cinebench with my gtx 770. It got worse fps then a HD 5770 on Mac. But on windows it crushed the 5700
     
  4. ilikewhey macrumors 6502

    Joined:
    May 14, 2014
    #4
    this doesnt sound good i just bought a 4.1 8 core lol i guess im keeping my gtx 970 in my pc just for that tad longer
     
  5. GameFreak348 macrumors regular

    Joined:
    Feb 28, 2014
    #5
    You could get a GTX 680 Mac Edition or Radeon HD 7950 Mac Edition and there wont be a problem
     
  6. CuamckuyKot thread starter macrumors member

    CuamckuyKot

    Joined:
    Aug 21, 2009
    Location:
    Russia, Saint-Petersburg
    #6
    No, I'm using Yosemite.
     
  7. ThoreEliasson macrumors newbie

    Joined:
    Oct 21, 2014
    #7
    Would you mind posting your Luxmark and Unigine Scores for 750 and 970 under Yosemite in their standard settings?

    Thank you!
     
  8. CuamckuyKot thread starter macrumors member

    CuamckuyKot

    Joined:
    Aug 21, 2009
    Location:
    Russia, Saint-Petersburg
    #8
    I've just made money back for 970. So I can only use 750Ti.

    There they are:

    LuxMark 2.1

    Room – 448 Points
    Sala – 803 Points
    LuxBall HDR – 6243 Points

    Unigine Heaven
    Extreme 1600x900 8хАА – 558 Score 22.1 FPS
     
  9. ThoreEliasson macrumors newbie

    Joined:
    Oct 21, 2014
  10. N19h7m4r3 macrumors 65816

    N19h7m4r3

    Joined:
    Dec 15, 2012
    #10
    Then you can't compare it to Windows tests since Windows Unigine defaults to Direct X which is faster than OpenGL.

    Install Bootcamp with the latest NVIDIA drivers when then run Unigine at the exact same settings as the PC/Windows results you found. Then you can compare.
     
  11. AngryRedTicTac macrumors regular

    Joined:
    Jan 15, 2011
    #11
    I'd never bothered to run Unigine Heaven on my 7950 equipped PRO in OSX, so I just gave it a whirl using my 10.9 boot. I'll run it on Yosemite tomorrow for comparison.

    Unigine Heaven
    Extreme 1600x900 8хАА – 772 Score 30.7 FPS

    I'm sadly still running a plain 4X2.66, hopefully finally going to grab an X5677 4x3.46 soon. Given up on scrounging up enough for a 6 core for now.

     
  12. Agent007pr macrumors newbie

    Joined:
    Dec 10, 2013

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