Clock rates for Dual D700s in MP6,1

Discussion in 'Mac Pro' started by bxs, May 6, 2014.

  1. bxs macrumors 6502

    Oct 20, 2007
    I'm running LuxMark v2.1 on my MP6,1, 2.7GHz 12-core, 64GB RAM, 1TB SSD with dual D700s.

    The LuxMark v2.1 displays under the Hardware Devices -> GPUs and Accelerators

    Clock: 850 MHz for first D700
    Clock: 150 MHz for 2nd D700

    Is this to be expected or is something wrong here. I was expecting the Clock rate to be the same for both GPUs.

  2. N19h7m4r3 macrumors 65816


    Dec 15, 2012
    Luxmark reads the clocks when it starts, as such the second GPU is idle. Although once the benchmark starts it'll clock itself up.
  3. bxs thread starter macrumors 6502

    Oct 20, 2007
    So how does one check what the clock rate is for the D700 GPUs ? Thanks... :)
  4. WMD macrumors regular

    Jun 12, 2013
    Florida, USA
  5. sirio76 macrumors regular

    Mar 28, 2013
    It's just reporting wrong clock. If you render on individual cards you will get the same render time.

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