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    Revit 2012 hardware [de]acceleration

    I posted a similar thread at AUGI, but ya know... no one said anything :-P

    This is something I noticed during the beta, and now having used 2012 for nearly a year, I have to ask if others have noticed a pretty serious degradation in 3D display performance when Direct3D is enabled in Options. Now as luck would have it, we have an office full of Radeons, and all of them run much slower in 3D with Direct3D enabled. This seems... dumb. I thought that using DirectX meant more reliable performance improvements for Revit users whether pro or consumer cards are being used? The Radeon HD 4670 I have is slower no matter what driver I use: from Catalyst 9.11 to 12.1, and even a softmodded FirePro driver for the same chipset.

    Can other people try opening a 3D view and comparing the frame rate of orbiting the model with Direct3D on and then off?
    Wes Macaulay LEED AP
    University of the Fraser Valley | www.ufv.ca

    #2
    Originally posted by Wes Macaulay View Post
    I posted a similar thread at AUGI, but ya know... no one said anything :-P
    Well, go figure... lol :laugh:

    Seriously though:
    I'm seeing this on my laptop. I merely blamed it on being a 32bit system, ready for replacement.
    Since going from 2011 to 2012 I cannot use Direct 3D anymore (was it on board in 2011? Anyway: what I mean is: I could use HWA in 2011, can't use it in 2012, whatever it's called). It brings my system to a grinding halt. I'm using a FireGL Pro card (have to look up the specs) and have tried just about any driver configuration I could find.

    Curiously enough, WITHOUT Direct 3D it runs like it's behind got on fire. I'm not experiencing any lagging until I hit the RAM-barrier...
    Last edited by mdradvies; January 28, 2012, 10:22 PM.
    Martijn de Riet
    Professional Revit Consultant | Revit API Developer
    MdR Advies
    Planta1 Revit Online Consulting

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      #3
      Well, you probably recall this thread... beyond that, it's difficult to say what's going on.

      I have a Radeon HD 5770 in my Mac Pro, and in Boot Camp, it's silky smooth with HWA. As a test, I've been sitting here switching between HWA on and off on a 100MB model, and I can't tell a difference in speed, though with HWA on, there appears to be definitely less drop-out of the model as I spin in camera view, which kind of surprises me since most of spinning around a model with all the eye-candy turned off is dependent on the CPU.

      You do have all the eye-candy off when you make these comparisons, correct? Apples to apples? When I first tried to test it out, it did indeed seem slower with HWA on, but then I realized that I had ambient shadows turned on in most of my views, which was slowing things down. With HWA off, the ambient shadows are automatically disabled.

      Anything else in common with all these computers? Some peripheral (e.g. Logitech mouse), virus-scan software, etc.?

      The HD 4670 is starting to get a little long in the tooth, but it's always difficult to know what someone else means by "slow". I think the general perception of most folks is that after 2011 made huge strides over 2010, 2012 regressed a bit. Only three months til 2013, so hopefully that will fix things! Lucky 13?

      :beer:

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        #4
        And mine is Nvidia Quadro FX580 - works great. I think that I run out of video memory, if anything, as my mail will sometime go black, but no prob with our beloved Revit...


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          #5
          Yes, the 4670 is two years old now, but the issue persists on newer computers with later Radeon hardware. In all cases there's no other likely suspects: we use Microsoft Security Essentials, and there's no other add-ons or hardware which would make for an obvious culprit. I think I'll point the Factory to this thread and suggest that 2012 was a partial bust on speeding up display for some users.
          Wes Macaulay LEED AP
          University of the Fraser Valley | www.ufv.ca

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            #6
            According to Gordons benchmark here, 2012 is a little faster than 2011. That could off course be specific to that system, but on the other hand, and just FWIW, I've until very recently been using a Radeon 5700 series myself, and did not notice a de-acceleration from 2011 to 2012.
            Klaus Munkholm
            "Do. Or do not. There is no try."

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              #7
              Originally posted by Wes Macaulay View Post
              I posted a similar thread at AUGI, but ya know... no one said anything :-P
              When? Where at? I don't see any posts from you for the past couple of days...
              Michael "MP" Patrick (Deceased - R.I.P)

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                #8
                Originally posted by Munkholm View Post
                According to Gordons benchmark here, 2012 is a little faster than 2011. That could off course be specific to that system, but on the other hand, and just FWIW, I've until very recently been using a Radeon 5700 series myself, and did not notice a de-acceleration from 2011 to 2012.
                I should have been more specific in that I was referring to graphic performance of 2011 vs 2012. I know there have been a number of complaints about it, both overall performance as well as bugs. But of course the majority might have different experience or are not really aware of the subtleties.

                As far as the benchmark goes, it only measures CPU (yes, I know Gordon attempted to benchmark the video card, but it doesn't - the videocard "results" are really still the CPU) - I don't know if there are any differences in the 2011 vs 2012 benchmark. If they are identical, that would be a really interesting aspect of it to compare versions of Revit. But that's another topic.
                Last edited by iru69; January 31, 2012, 05:51 PM.

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                  #9
                  I can definitely confirm the findings of the initial poster. I noticed the same behavior. When hardware acceleration was turned on, I noticed serious time lags with any (de)selection and operations in Revit, in spite of latest generation hardware.

                  I must remark though, that I found the following warning in my Graphics tab:

                  “The installed video card driver is newer than those certified by Revit.
                  Card: Intel(R) HD Graphics Family; current driver: 8.17.12.8562
                  Certified drivers: 8.15.10.2266; 8.15.10.2361
                  You may continue to use Hardware Acceleration.
                  If you experience graphics display issues, you should:
                  - Turn off Hardware Acceleration; or
                  - Install driver that is recommended for use with Revit.”

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                    #10
                    Intel HD hardware is really inadequate for running Revit. You can do it in a pinch, but expect it to be awful! Revit 2012 really hates Intel graphics, regardless of the hardware or driver version used.
                    Wes Macaulay LEED AP
                    University of the Fraser Valley | www.ufv.ca

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