Does anyone have some light to shed on this, or has the same?

My gpu 980ti evga OC is pegged at 99% no matter what I do or change. I run 4790k at 4.8 ghz, and 4k res. (this isnt it, when i change to 1080p it still sits at 99%)

FPS as a result fluctuates a great deal, and sim is not smooth. I usually run at 30 hz and it was smooth as butter before 4.1. I dont go crazy with the settings eiter, but changing them doesnt do a thing, still 99% all the time, no fluctuations, just 99%. (Vram is 40% used)

edit: addons: UT live, chaseplane, GSX, FSUIPC 5. NGX and FSLabs A320 (+spotlights)

 

thx,

 

Roland

My experience. If you select unlimited as a target frame rate it will use as much of the GPU as possible at all times. I use around 30 FPS and that give the GPU some breathing room with a smoother performance.

Hi pine,

I tried limit 30 and 20, doesnt change a thing. Still 99%.

Maybe try lowering lighting and autogen settings? I know Dynamic Lights can be a real performance killer with high AA. Water quality also makes a big difference at airports surrounded by water. 

Hmmm.... not that this is going to help as it's a mystery to me. I have generally higher settings than you and my GPU rarely hits more than 50% or so. I do have FPS limited to 30, which I know on my system results in a massive reduction in both GPU and CPU workload. I suggest you revisit those settings and see if something 'didn't take' when you tested before.

Go into task manager and what ever else your running with your Sim e.g. ASv4/ASCA... kick them off core 0 and 1

It will help.

6 minutes ago, Nyxx said:

Go into task manager and what ever else your running with your Sim e.g. ASv4/ASCA... kick them off core 0 and 1

It will help.

How will kicking addons off core 0 and 1 of Cpu help Gpu load?

Did no one notice the video card?  980Ti.  Didn't mention how much VRAM, but they're typically 4GB which a bit low for P3D v4.  I'd say it's time for a better video card.  Just my thoughts.

To Ed's point, check your VRAM usage. If it's maxing out, a couple of judicious setting reductions could bring you below the line, then your FPS limiter might actually free up some GPU cycles.

Before a recent upgrade, I used a 980 (non ti) with P3D v4 in 4K without issues, by keeping a few critical settings in check.

This may or may not be relevant, but I'm running a GTX 1070 with "Use high resolution terrain textures" selected and I my VRAM usage never gets to 4GB.

Roland, it is not specifically listed, but do you use Active Sky weather with ASCA? If so, one option would be to use lower resolution cloud textures. In ASCA set all cloud quality to 512x512. When I did that, I saw no difference in cloud texture quality.

Maybe you already tried this but ...

1. Delete the Shaders folder in %localappdata%\Lockheed Martin\Prepar3D v4

2. Delete the prepar3d.cfg in %appdata%\Lockheed Martin\Prepar3D v4

Make backups if you feel the need but both will be rebuilt next time you start P3Dv4.

1 hour ago, WarpD said:

Did no one notice the video card?  980Ti.  Didn't mention how much VRAM, but they're typically 4GB which a bit low for P3D v4.  I'd say it's time for a better video card.  Just my thoughts.

its a 6 gb card

Could be a function of AA. Restore/Apply your Nvidia Control Panel profiles might help.

I did a re install of p3d. Now slowly adding the addons.

I know a 1080ti would be better, but the thing is that from v3.5 onward and also 4.0 was running nicely with 4k and 30hz. I dont mind somewhat low fps, but the stutters were really bad.

I will use some suggestions made her with the new setup. I also changed my main monitor back to a 1080p one and save the 4k for when I get the 1080ti. Locked the fps to 28 and used fftf 0.15. Now the GPU is at 40 - 50 % and frames more stable. (my 1080p monitor doesnt support 30 hz)

edit: I also reverted back to some old nvidia drivers, not sure if that helps. (clean install with DDU). Are there still drivers to avoid?

2 hours ago, WarpD said:

Did no one notice the video card?  980Ti.  Didn't mention how much VRAM, but they're typically 4GB which a bit low for P3D v4.  I'd say it's time for a better video card.  Just my thoughts.

Guess also "no one" noticed he already sad in the OP vram was at only 40%

 

Also, 980Ti is an awesome card... on par with the 1070s.... Wouldn't use it for 4K, but still not the problem since he already stated he tied other resolutions too...

 

Maybe drivers issue.