0 votes
asked by (12 points)
Recently I made the purchase of a GTX 1060 6GB, hoping to be able to run the simulator with superior quality.

But this is not what happens, the frame rate is only 25 FPS, and the use of the VGA does not exceed 30%.

Previously I had a GTX 750Ti, where I could use 100% and its range of pictures was over 60 FPS.

In other simulators and games I had an excellent gain compared to the old board, but in xplane 11 happens the opposite of this, barely able to open the simulator.

Is there a solution to this problem?
commented by (12 points)

See how it is in the monitoring, it is as if the simulator did not use all the offered resource:

commented by (10 points)
Could be related to this: https://questions.x-plane.com/23889/huge-fps-drop-after-updating-xplane-11

I'm noticing low framerates as well.

1 Answer

0 votes
answered by (290 points)
edited by
It’s bewildering that the FPS could have gone down after upgrading to the GTX 1060.  Are the before-and-after numbers measured under the same Graphics Settings?

You have not mentioned what CPU is in your system.  The utilization %s of the CPU and GPU shown suggest that the CPU could be the bottleneck.  Even though the indicated CPU loading itself has not topped out, however, that % number is the sum from all cores.  X-Plane is likely maxing out a single core that it is relying on to interface with the GPU.  Try lowering the “Number of Worlds Objects” to see if it could improve this situation.

That aside, note that Laminar actually recommends a GTX 1070 for X-Plane 11.  So I’d not expect a 1060 could “run the simulator with superior quality”.
commented by (12 points)

Yes, before and after numbers are measured with the same graphic settings.

When I say "run the simulator with top quality" I mean the fact that I would run with superior quality compared to the old VGA, which did not happen :(

What I found strange is that previously, with the GTX 750Ti, I had a lot more bottleneck, the VGA did not follow the processing, I now have VGA to spare and I can not run the simulator anymore.

View my settings: 

commented by (290 points)

Comparing your system (above) to the requirements recommended by Laminar:

  • CPU: Intel Core i5 6600K at 3.5 ghz or faster
  • Memory: 16-24 GB RAM or more
  • Video Card: a DirectX 12-capable video card from NVIDIA, AMD or Intel with at least 4 GB VRAM (GeForce GTX 1070 or better or similar from AMD)

Your system appears to be on the low side.  The bottleneck seems to have now migrated to the CPU side.  I am not surprised by the 25 FPS performance.  What is difficult to explain is how the same software/hardware with the same settings could deliver 60 FPS using the 750Ti before.

commented by (12 points)
edited by

When I said I could run the sump at 60FPS, I forgot to tell the fact that the settings are all in the lowest possible setting.

I found it very strange, so much that I have a notebook with 8GB of RAM and an i7 5500u and I was able to run the simulator (also with the graphics in the minimum and lowest resolution) above 30FPS only with the use of the processor.

Now with the GTX 1060 the FPS is only 25, as if something blocked it. As I already said in other simulators (also in games) I had a great gain even if I tried CPU bottlenecks, with the exception of Xplane 11.

Here is a video of the xplane with the same settings that I have, it is clearly possible to run the receiver over 30FPS with leftovers:

https://www.youtube.com/watch?v=rIUX6ALEQQ0

(In the lower right corner you can see the average of 45 FPS, simulating in Full HD.)


In the print where I show CPU and GPU data specifically where the frame rate is displayed I have the OGL sigma, was not it supposed to appear DirectX 11?

commented by (290 points)

If there is doubt on the OGL FPS, I would go to the X-Plane’s dataref to for the “official” number (under Data Output Settings). 

After upgrading the former bottleneck (750Ti), one would justifiably expect the performance to go up, at least by some noticeable amount.  And as you’ve said, with all the Graphics Setting at minimum, the FPS should be better than 25. 

Hence I can only speculate that there exists some interaction between the CPU/RAM and the GPU that is causing the FPS problem.  Perhaps the GTX 1060 interface is now demanding more processing power, than what the 2.7GHz i5 can “catch up” with.  I have seen a case where an X-Plane simmer had upgraded his GPU, but yet the FPS remained unexplainably low—until he had upgraded the CPU as well.

This may require someone with actual X-Plane programming expertise to explain.

commented by (12 points)

Hi friend, first of all I want to thank you for your time and help in this case. I also apologize for the bad English, because I am Brazilian and we do not speak the language very well.

Well, after deleting all the simulator and download again, I did some tests and got great results:

  • Worst Result: (Here I can see that the simulator made full use of the VGA).

  • Average result: (Here I almost have no use of VGA due to the graphic settings).
  • Satisfactory result: (Here I managed to conserve VGA and CPU usage and I had a good FPS rate).
I believe that in these configurations I will be able to enjoy my current hardware well, thanks for the help.

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