No problem Mickeyj, your tip just sounded a little simple. Of course I could find out by getting a 980Ti but if possible I would rather first have some incitement doing so.

 

As for AA in P3D I too am fully happy with what SGSS provide. My problem is when I use 4xSGSS (which is required in my case to have a good result) the performance turns into a slideshow when flying into dense clouds. The reason you don't have this problem obviously is you're running two 980s in SLI.

 

I've been playing with the thought of getting a SLI setup myself but found out my motherboard (Asus Maximus Formula VI) doesn't support running SLI x16 but only x8 so that's why I'm now thinking of getting a 980Ti instead and hence my question if it's likely a single 980Ti would be powerful enough to run 4xSGSS.

 

I know Rob was playing around with this when he got his first Titan X before SLI was announced for P3D and IIRC he found that the performance would still drop using 4xSGSS when entering dense clouds. That however was when running @ 4K as I remember it so question is if doing the same thing but @ 1080 would allow the use of 4xSGSS without a severe performance hit.

 

I just checked both settings @1080 so no Problem at all with 4xSGSS.

I just checked both settings @1080 so no Problem at all with 4xSGSS.

 

Thanks, great to hear 4xSGSS doesn't cause any performance drops when running SLI. However in your case that is with 2 980s, I wonder if the same would be true with 2 970s.

 

Also, when you tried this was this in an advanced a/c such as the NGX or triple 7 from PMDG and was it with ASN and dense clouds?

I was using the RealAir Turbine Duke with ASN and REX soft clouds around orbx PNW.

OK, not sure how that a/c compare to the NGX in terms of performance hit but I guess that is of minor interest compared to the fact that you're running 2 980s where I'm thinking of 2 970s.

 

I started another thread where I'm asking specifically for input of running 2 970s in SLI, looking forward to more input in that one. Another option would of course be to find a used GTX Titan but they seem hard to find.

I took a spin in the NGX around KMCO FTX Global+Vector (only coastlines and beaches are active rest is deactivated) Sorry to say the NGX is and will be an FS loser when you have a high modded flight sim. I cant get over 25 frames despite the fact that when  i enter clouds the frames will likely drop a frame or two so no major hit her but overall the NGX is and will be a show stopper. In a vanilla installation i get nearly 45 FPS with a single 980 (optimized parts are set to 1) or you want to turn down all settings to low.

 

Dont expect magic with SLI now as you wont get much higher FPS. If you currently run your system for ex good @ 30FPS then it will likely run the same or 3-5 frames more with SLI but at higher settings like shadows. That does not mean that if you stay at your current settings you will get more FPS. Either SLI or single card the sim runs smoother with the new drivers.

 

IMHO i dont think that an 980ti single or SLI will bring magic to P3D2 unless somebody find a way to open up the bottleneck.

Many thanks for your input!

 

Since I do all my flying in the NGX this is what is of interest to me. With my current rig and settings I have great performance as long as I don't use SGSS meaning my AA is all but good running at 1080.

 

The only reason for me to go for an SLI setup or get a 980Ti is if that would allow me to keep my FPS/performance I have today but with the addition of being able to achieve this with 4xSGSS. I don't really need any better performance than I already have but what I would need/like is to be able to use 4xSGSS to get rid of the bad AA.

 

I know the way P3D (and FSX for that matter) is built being heavily dependent on the CPU adding more GPU power won't do much but looking at the ability to use SGSS I was hoping this would mostly be dependent on the GPU and thus I was hoping adding more GPU power would allow me to use SGSS.

I cant get over 25 frames despite the fact that when  i enter clouds the frames will likely drop a frame or two so no major hit her but overall the NGX is and will be a show stopper.

 

That's odd, PMDG 737 was working very well at FT Copenhagen with Orbx (no Vector) + OpenLC + EU Norway + ASN, etc. for my SLI setup.

 

Here is the PMDG 737 ... FPS/GPU usage is in upper left, but might be hard to see unless you view 4K.  I didn't zoom the GPU usage and FPS overlay so it would be visible at 1080  (in the future I will when doing these types of tests).

 

 

The PMDG 777 however not so well at Orbx YMML in SLI (really bad in fact 14-19 FPS VC) ... need to investigate that ... also need to do the same test in the 777 at FT Copenhagen to see if it's the 777 (and/or 777 just doesn't like SLI) or the airport.

 

I haven't tested with SGSS AA, but I agree with Richard that SGSS AA is an exclusive GPU task and it's a good stress test for any GPU (regardless of CPU) ... but be warned, if your system is already "fragile" and/or on the edge for power loads SGSS is a great way to trigger BSOD and/or spontaneous reboots.

 

There are some 3rd party BGLs at various airports that seem to really cause performance issues ... I don't know why nor if it's a problem specific to P3D or the nVidia driver and/or how 3rd party design their models.  So far my only solution has been to determine the offending BGL and give it a .OFF extension.  Ironically it's rarely building objects, usually lights or flattening issues with P3D.

 

But when testing performance in P3D it's a good idea to pick a mix of airports from "default" to 3rd party moderate complexity and 3rd party heavy complexity (that includes the surround scenery area).

 

Cheers, Rob.

G´day Rob,

 

yes i´ve seen the FT CPH vid of you that is why im wondering that the performance is so bad with the NHX. However i dont care about the NGX as im not flying it. Too much airline feeling in the sim

 

I put up a vid to show the cloud performance with 4xSGSS @1080 resolution and a rotor wash effect that seems to work in SLI. But sadly it was gone again when i accidently went into the settings menu. I couldnt reproduce the working effect. I know that i was in SLI mode.  I did not clear the shader cache on purpose.

 

The vid will be online as soon as youtube has done its job.

 

Please disregard this video it does not represent the actual performance of my system. I found out that the BIOS forgot its OC. The vid above shows the 5820k stock turbo boost of 3.5GHz. I will make another one with its current OC 4.3GHz.

 

 

As far as I have read over 40fps is the sweet spot. Unlocked would be a better test more than likely like you said.

 

So further testing has been done with this new driver, i have found that unlocked is producing a more smoother sim! far less stutters when i`ve got 30+fps, its a little hard to keep fps around 40 when using add-on scenery's as you would expect but none the less its still very smooth performance below 30fps, just completed a flight from KDEN-KPSP and its a major wow factor for me, also my G-sync monitors indicator stayed on regardless of fps, i did not suffer from the flickering light syndrome as others have reported when fps drops to 30 or less.

 

This is the best driver yet imo, i am making a video now so i can show everyone.

 

Thanks for the tip.

 

Rick

 

 

also my G-sync monitors indicator stayed on regardless of fps

 

Rick, do you mean that your monitor's g-sync indicator stayed on at your monitors default refresh rate regardless of the fps in P3D?  This has been my experience so far, my monitor's refresh rate indicator stays at the default of 144 Hz regardless of the FPS I am getting in P3D.  This obviously indicates that g-sync is not working with P3D for me.

Please disregard this video it does not represent the actual performance of my system. I found out that the BIOS forgot its OC. The vid above shows the 5820k stock turbo boost of 3.5GHz. I will make another one with its current OC 4.3GHz.

 

Finally had the time to check out your video, very nice put together and showed exactly what I wanted to see in a very good way so thanks a lot for sharing and taking the time to put it together!

 

What I did notice though was how the FPS dropped below 20 in the NGX and that is something a rather not want to see because with that FPS head movements using TIR5 become jerky at least over here. Not sure how much the CPU overclock that was missing would improve that situation but guess we'll find out once you had a chance to re-test using your normal overclock.

 

Another thing which I found a bit surprising and strange is why the GPU load didn't went higher when the performance in the clouds clearly affected the overall performance/FPS as much as it did. One would like to think the gfx cards in that situation should have used all their power rather than half of it...this since running 4xSGSS in dense clouds very much is about GPU rather than CPU muscles.

 

Right now I wonder if the only solution to be able to run 4xSGSS in the NGX with ASN and dense clouds maybe is to get 2 980Ti cards running SLI. Not a particulary cheap solution OTH...

The possibility of windowed gsync is the thing about these drivers, but now one says it works and another says it doesn't.

I hope this gets sorted and confirmed one way or the other as I'm sure many are looking into gsync and new monitors.

The possibility of windowed gsync is the thing about these drivers, but now one says it works and another says it doesn't.

I hope this gets sorted and confirmed one way or the other as I'm sure many are looking into gsync and new monitors.

 

Yeah...funny how this seems to be the new trend with the latest versions of Nvidia drivers and not only gsync but also SLI...some people are reporting great improvements while other don't see any improvement at all.

Finally had the time to check out your video, very nice put together and showed exactly what I wanted to see in a very good way so thanks a lot for sharing and taking the time to put it together!

 

What I did notice though was how the FPS dropped below 20 in the NGX and that is something a rather not want to see because with that FPS head movements using TIR5 become jerky at least over here. Not sure how much the CPU overclock that was missing would improve that situation but guess we'll find out once you had a chance to re-test using your normal overclock.

 

Another thing which I found a bit surprising and strange is why the GPU load didn't went higher when the performance in the clouds clearly affected the overall performance/FPS as much as it did. One would like to think the gfx cards in that situation should have used all their power rather than half of it...this since running 4xSGSS in dense clouds very much is about GPU rather than CPU muscles.

 

Right now I wonder if the only solution to be able to run 4xSGSS in the NGX with ASN and dense clouds maybe is to get 2 980Ti cards running SLI. Not a particulary cheap solution OTH...

 

High please disregard the video as the frames are a bit higher though. For some reason i lost the overclock settings. now everything is back to normal and much higher. I gonna have to reinstall the NGX as it freezes every 2-3 minutes for about5 secondx´s that puts me major of.