Just out of curiosity, Im wondering what others are getting as a GPU load. I realize FSX is CPU bound, and everyones settings are relative, but it seems my GPU is hardly working and its a meager 660 at that. (Non TI)  I get around 25-40% load on average, and even when overcast in a heavy city where fps dips somewhat, it doesnt go much above that. If getting a decent video card like the 780 etc is so important, then im not pushing enough thoroughput to the GPU to work hard enough. 

 

I used the nvidia inspector main window , side by side with FSX in windowed mode to observe it. And I run exclusively in DX10. (Thus the DX10 forum post. 

Usually 30%

Mine is about the same GTX580

Interesting. Ok I guess its not out of the ordinary

99% at 53 degrees Celsius with OC GTX 670. Measured with GPU-Z. I was surprised myself but it works fine.

FSX and P3D running fine and smoothly.

 

I also like to check my GPU with the Valley and Heaven Benchmark and I get always good results there.

Spirit

in FSDT CYVR HD2048 my HD7970 could get up 60-80%in DX10

Michael Moe

99% at 53 degrees Celsius with OC GTX 670. Measured with GPU-Z. I was surprised myself but it works fine.

FSX and P3D running fine and smoothly.

 

I also like to check my GPU with the Valley and Heaven Benchmark and I get always good results there.

Spirit

 

Checked again with EVGA Precision where the GPU Load can be seen on the FS window permanently. 99% are some spikes but the most time it's around 30 to 80%. Not possible to tell an exact number.

Spirit

I have a GTX 660 and with my settings, 1920X1080 monitor,  it sits around 40% or so on a clear day. Get into some nasty clouds on a rainy day and it can spike to 100% at which point the FPS starts to fall off. I spent quite a bit of time profiling the GPU load for various flight scenarios and filter and AA settings. AA clearly loads the GPU. I'm at 4xSGSS. At 8x, it 'idles' at 50% (IIRC, threw away my notes), but the nasty clouds can drive it to 100% much more quickly. FXAA seems to add about a fixed 4% increase in load...

 

This topic is timely as I've been thinking about GPUs and NickN's 'Bible' recommendation to match your GPU with your processor/OC. IF, you're satisfied with the image quality and performance of a particular GPU, I don't really see the need to step up the GPU if one was to increase the CPU performance. Increasing traffic settings or LOD_radius (etc.) settings doesn't really change the workload on your GPU does it? .. or does it?

..... I don't really see the need to step up the GPU if one was to increase the CPU performance. Increasing traffic settings or LOD_radius (etc.) settings doesn't really change the workload on your GPU does it? .. or does it?

 

I guess a faster CPU puts quite well much more load on a GPU.

Spirit

This topic is timely as I've been thinking about GPUs and NickN's 'Bible' recommendation to match your GPU with your processor/OC. IF, you're satisfied with the image quality and performance of a particular GPU, I don't really see the need to step up the GPU if one was to increase the CPU performance. 

Heya, OB!

Nick is dead right when he talks about "matching" components - a fast proc needs suitable memory and timings, it also needs an equally fast bus, and an equally fast GPU, but if one uses a faster GPU - then one can set BP=0 with impunity, as there is a fair performance gain by doing so. I could not run "0" with the 580, but can now do so with the 780.

Heya, OB!

Nick is dead right when he talks about "matching" components - a fast proc needs suitable memory and timings, it also needs an equally fast bus, and an equally fast GPU, but if one uses a faster GPU - then one can set BP=0 with impunity, as there is a fair performance gain by doing so. I could not run "0" with the 580, but can now do so with the 780.

 

Interesting. That was something else I was going to ask you about. When I tried BP=0, I noticed a performance drop (more blurry textures IIRC) so I went back to BP=1 and associated settings.

 

So, would I see an FPS improvement by simply adding a faster GPU and going to BP=0? (Don't get me wrong, I'm not hung up on FPS, I want simming smoothness, but FPS seems to be one of the measurable benchmarks of FSX performance.)

 

What about impact of bumping traffic or LOD_Radius?

 

 

What about impact of bumping traffic or LOD_Radius?

I can actually test this myself. On the chance that someone has already done this, do we know which 'sliders' increase the load on the GPU and which impact only the CPU?

The question I'm trying to figure out is how to get the GPU to work harder without impacting performance measured as FPS. Increasing the sliders always exponentially increases load on CPU. If mine is only loading at 50% I need to get more load on it.

I think my I5-2550K and 660 is a decent match.

 

 

I could not run "0" with the 580, but can now do so with the 780.

Did you sell your 580 Paul? :rolleyes:

Yup..as soon as I posted it here. It was a great GPU, and still high-end for FSX.