Currently I have a 3080ti and a Dell U3415W display.  The native resolution on the display is 3440x1440.  In the sim, I have always run the same resolution for full screen resolution and render scaling.  In youtube videos, it seems like people usually use something less than their native display.  Should i be doing what I am doing or is there a particular reason to use a resolution less than what is native?  Wouldn't that mike things look not as crisp?

It comes down to performance vs what visual degradation you notice/can live with.  

In 4K with my old video card I could reduce the render scaling to around 80 without really seeing a difference but the performance increase was definitely noticeable.  It’s something I’d suggest playing around with to see if there’s a sweet spot for you at a setting other than 100.

It's also possible to use the GeForce Experience app to do Image Scaling and Sharpening. It's in the settings section (click on the gear) under GENERAL. After enabling IMAGE SCALING, I set Render Resolution to 77% and Sharpen to 40. MSFS is set to full screen resolution, DX11 and DLSS. The flat panel displays are rendered sharply and performance at a locked 30 fps is virtually stutter free, smooth as butter. I can't perceived any blurring of the cockpit environment.

This also works with DX12, but on my system, at least, render latency is over 100 ms, and thus control response is unacceptably lagged. Not a problem in DX11 where render latency is around 30 ms.

Do you guys see differences between DX11 and DX12 in terms of visuals and performance?  For me they both seem the same...

26 minutes ago, Zimmerbz said:

Do you guys see differences between DX11 and DX12 in terms of visuals and performance?  For me they both seem the same...

Not really. The only significant difference I saw was that render latency. Landing a 737 is challenging enough in the current wind field of MSFS. Adding perceptible time delay in the control response makes that a lot harder.

I didn’t before, but now in use DX12 so I can take advantage of frame generation.  But with my previous card (2080ti) I found performance to be indistinguishable.

Edited January 27, 20233 yr by regis9

10 minutes ago, regis9 said:

I didn’t before, but now in use DX12 so I can take advantage of frame generation.  But with my previous card (2080ti) I found performance to be indistinguishable.

Ok... That is good to know

As for render scaling,, what exactly does that do and should that number always be the same as  the in game screen resolution?  I moved the render scale higher and lower than the native 3440x1440 and didn't notice any difference.  I think I am doing something wrong because i would have assumed performance and visuals would have either gotten better or worse when I changed them...

1 hour ago, Zimmerbz said:

Do you guys see differences between DX11 and DX12 in terms of visuals and performance?  For me they both seem the same...

I have better performance with my 4090 on dx12 apart from frame generation. Visuals are same but there’re some minor dx12 bugs with visuals.

Edited January 27, 20233 yr by spitzer45

1 hour ago, Zimmerbz said:

I moved the render scale higher and lower than the native 3440x1440 and didn't notice any difference.  I think I am doing something wrong because i would have assumed performance and visuals would have either gotten better or worse when I changed them...

Somebody smarter than me can likely correct me/provide more information, but I think it largely comes down to the specifics of your system and what your bottleneck is, CPU or GPU.  For example if 100 render scaling was really stressing your GPU and that was your limiting factor for performance, reducing the render scaling should help a bit at least.  If it’s the other way around and your GPU has lots of headroom you may not see a noticeable difference in performance.

It would stand to reason that it’s less impactful at 2k as opposed to 4K given how much more demanding 4K is on a GPU.

That’s my semi educated guess anyway 😀

11 hours ago, Zimmerbz said:

Currently I have a 3080ti and a Dell U3415W display.  The native resolution on the display is 3440x1440.  In the sim, I have always run the same resolution for full screen resolution and render scaling.  In youtube videos, it seems like people usually use something less than their native display.  Should i be doing what I am doing or is there a particular reason to use a resolution less than what is native?  Wouldn't that mike things look not as crisp?

I had a Dell U3415W display and a 3080Ti and there was never and indication to reduce render scaling.  For awhile I increased RS for 120 or 130 but noticed a very subtle but real shimmy/shutter in the display at randomly occuring moments and since then it sits at 100%.  Yes, not as crisp rendering at sub 100% settings.  your GPU is well-matched to your CPU but will still not become the limting factor, hence no need to reduced RS.  

Edited January 28, 20233 yr by Noel

8 hours ago, Noel said:

I had a Dell U3415W display and a 3080Ti and there was never and indication to reduce render scaling.  For awhile I increased RS for 120 or 130 but noticed a very subtle but real shimmy/shutter in the display at randomly occuring moments and since then it sits at 100%.  Yes, not as crisp rendering at sub 100% settings.  your GPU is well-matched to your CPU but will still not become the limting factor, hence no need to reduced RS.  

Good to know.  Thanks!!