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P3D4.5 737NGXu Performance issues

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    Yeah, I have a pretty decent machine but my frames drop considerably when flying in LA!
    in general, I'm not getting the frames I should base on my computer. I have everything on normal for the most part.

    Ro Faulk

    Monitor ROG PG27U 4K 144HZ
    i9,9900K 5.0GHZ, 64GB RAM, SSD 2TB M.2 OS drive, Dual EVGA 2080Ti NVLinked GPU's, MSI, GODlike Z390 MB.


    • Swaluver88
      Swaluver88 commented
      Editing a comment
      LA is always a crap shoot

    I see that the latest update to the NGXu (2.91.0041 - Released 2019-12-24) does not seem to address any of the reported performance issues in the VC with dynamic lightning. I have found the performance of the NGXu compared to the NGX to be significantly worse at night - and it appears to be due to (at least some of) the dynamic lightning in the VC. I run 4xMSAA so AA should not be the issue.

    Does anyone know if PMDG have acknowledged that there is a performance issue and what their recommendations are to resolve / improve it?

    I normally get 30 FPS steady in the original NGX - virtually at any airport in the world - including complex airports. At night in the NGXu, the performance is now dropping to around 20-25 FPS and sometimes lower and it is not smooth at all - which is really disappointing as my P3D v4.5 settings are relatively conservative in favour of performance.I have an i7 7700K @ 4.9 GHz CPU, nvidia GTX 1080 GPU & 16GB 3200MHz DDR4 RAM. Not highest end but certainly very capable - and, as mentioned, does the job more than adequately for the NGX, Dash Q400 etc.

    I think that the key issue is the noticeable decrease in performance of the NGXu when compared to the NGX.

    Perhaps there should be an option in the PMDG settings or performance menu to disable some of the VC dynamic lighting (even though I absolutely love the new dynamic lightning in the VC).


    Rhett Kelly


      There was this post that was made a few days ago if that helps.
      Captain Kevin

      Kevin Yang


        Originally posted by Captain Kevin View Post
        There was this post that was made a few days ago if that helps.
        Thanks. That does help a lot. It confirms that PMDG are continually working on tweaks in the VC to help improve performance. I hope it does not take too long.


        Rhett Kelly