2 hours ago, sonny147 said:

i have a 3080 12 GB , and considering upgrade to 4080 for the FG , do you think going from 3080 to 4080 is worthwhile ( i have a 5800X3D ) it would be a significant investment and don't want to do it for small gains 😬

I recently went from a 3090 to a 4090 and for me it was worth it for Frame Generation alone. I am currently in the cruise over Northern Spain in the PMDG 737 and I am seeing 112 fps at Ultra settings. What is more impressive is my 4090 is running around 50 degrees Celsius and pulling around 250W. This thing is not even breaking into a sweat lol. I could probably do with upgrading my 12700K but for now it seems to be doing ok. There are plenty of others that took the root you are looking at and seem to be happy, the 4080 is a great card. If you can afford it then why not.

Edited May 22, 20233 yr by RJC68

3 hours ago, sonny147 said:

i have a 3080 12 GB , and considering upgrade to 4080 for the FG , do you think going from 3080 to 4080 is worthwhile ( i have a 5800X3D ) it would be a significant investment and don't want to do it for small gains 😬

You will get really good frames with FG on and I for sure was. But turns out most (all?) scenery for MSFS is optimized for DX11 as it turns out. Same with aircraft such as the FBW A320 (if you have Discord, go to the FBW one, under A320 support, search “DX12”, it’s not pretty). 
 

I was getting superb frames but all the frames in the world won’t help at most airport scenery. For instance, on DX12 with FG on, etc.. I would be glorious in flight but landing at any of the iniBuilds scenery I would have to go from HD textures at KDTW & KLAX to SD to avoid stutters and lag. Their KSAT scenery was lagging so bad I considered uninstalling it. Today, upon switching to DX11, no more issues. No stutter or lag with HD textures at KDTW / KLAX and KSAT is now very smooth with no lag. Unbelievable how bad DX12 is now in MSFS, hence the Beta tag. On the aforementioned FBW Discord channel one of the staff explains the many failures in present form of DX12 implementation in MSFS. Not pretty.

 

3 hours ago, Sethos said:

Recently got my new PC and started out using DX12. Wasn't a great experience. Lots of scenery issues and increased stutters. DX11 is so much smoother and less problematic at this point.

Same as you, no issues really with stutter under DX11.

 

55 minutes ago, RJC68 said:

I recently went from a 3090 to a 4090 and for me it was worth it for Frame Generation alone. I am currently in the cruise over Northern Spain in the PMDG 737 and I am seeing 112 fps at Ultra settings. What is more impressive is my 4090 is running around 50 degrees Celsius and pulling around 250W. This thing is not even breaking into a sweat lol. I could probably do with upgrading my 12700K but for now it seems to be doing ok. There are plenty of others that took the root you are looking at and seem to be happy, the 4080 is a great card. If you can afford it then why not.

I have 4080 and a 7800x3d and agree….until you get to the airport which would then invariably turn into stutter and lag.

I also did an upgrade to a 4080, coming from a 6900XT. Reason was FG and it really does the trick. If I now also get the g-sync flickering resolved, I am a happy camper.

I tried dx12 and stayed with it for a while until learning it couldn't give the best results with the FBW, then changed to dx11 and stayed there with excellent performance in my 5600x Ryzen cpu  and RTX 3060 Ti 8 GB GPU.

I don't think I'll get back to Dx12 unless I get a 40xx one day...

Question: Does frame generation and DLSS/TAA work with DX11? Can´t test at the moment.

1 hour ago, techman said:

Question: Does frame generation and DLSS/TAA work with DX11? Can´t test at the moment.

Frame generation only works with DX12. It works with either DLSS or TAA.
 

My experience in terms of smoothness is much better in DX12 than DX11. I do have some visual artifacts now and then, which caused me to try DX11 again, but I was getting lots of stuttering, much worse frames and it just wasn't smooth. Went back to DX12 and I'm happy again.

On 3/31/2023 at 1:57 AM, spearmint_flyer said:

 I wonder how many here have considered the effect of AI traffic. I noticed that whether I am DX11/12 makes no difference when I use AI traffic. There’s always a pause stutter right around 4 miles final. This is because of the number of sim objects instantly loaded that need to be rendered into the scenery. 

 For those questioning the VRAM usage in DX11 vs. DX12. By design, you will have a higher usage in DX12, and this is what’s supposed to happen. The rendering is switched from the processor to the graphics card, leaving the processor more room to do other tasks. Higher VRAM on a graphics card is normal. 

Wel I'm using DX11 FSTL AI with max 2K textures and low ground AI % around 30 works fine no stutters here local 😉 

44 minutes ago, mmcmah said:

Frame generation only works with DX12. It works with either DLSS or TAA.
 

My experience in terms of smoothness is much better in DX12 than DX11. I do have some visual artifacts now and then, which caused me to try DX11 again, but I was getting lots of stuttering, much worse frames and it just wasn't smooth. Went back to DX12 and I'm happy again.

 

Thanks.

But: So for all 40xx-owners DX11 is a nono. Doesnt make any sense to fly with 50% of the possible FPS.

Edited May 22, 20233 yr by techman

EDIT: Disregard

Edited May 22, 20233 yr by Sethos

1 hour ago, techman said:

 

Thanks.

But: So for all 40xx-owners DX11 is a nono. Doesnt make any sense to fly with 50% of the possible FPS.

Did you not read what I previously wrote? Third party scenery in MSFS does not play well with DX12. I don’t care if you have 1000fps with FG, lag and stuttering will still occur. Hence why with my 4080, went back to DX11.

Yeah, that´s why theres no quality control for Marketplace-Items. I had to delete several airports since they occured stutter after Update 12. 

Conclusion: Don´t buy third party products that are not under steady maintenance.

19 minutes ago, B777ER said:

Did you not read what I previously wrote? Third party scenery in MSFS does not play well with DX12. I don’t care if you have 1000fps with FG, lag and stuttering will still occur. Hence why with my 4080, went back to DX11.

I only fly into and out of third-party scenery in MSFS and I do not experience any lag or stuttering of any kind in DX12 with FG on. Granted, I am on a 4090, so maybe that is the reason why. I am not doubting that you are experiencing stuttering I just want others to know that DX12 and FG does not cause stuttering in third party airports in all cases. Lots of my flying is in the PMDG 737's and the the Fenix A320 as well as some of the Black Square aircraft and the way I have my settings, I get nice, stutter and lag free performance. I wish others with 40xx cards that are not experiencing this could, because it IS possible. 

23 minutes ago, sniper31 said:

I only fly into and out of third-party scenery in MSFS and I do not experience any lag or stuttering of any kind in DX12 with FG on. Granted, I am on a 4090, so maybe that is the reason why. I am not doubting that you are experiencing stuttering I just want others to know that DX12 and FG does not cause stuttering in third party airports in all cases. Lots of my flying is in the PMDG 737's and the the Fenix A320 as well as some of the Black Square aircraft and the way I have my settings, I get nice, stutter and lag free performance. I wish others with 40xx cards that are not experiencing this could, because it IS possible. 

I "only" have the 4080 and this has been my experience as well.  I wouldn't dream of going back to dx11 even with a few background image bleed throughs.  Flying into a payware airport with fsltl traffic, a payware aircraft and thicccc weather above 60 fps?!  Yes please haha.

38 minutes ago, sniper31 said:

I only fly into and out of third-party scenery in MSFS and I do not experience any lag or stuttering of any kind in DX12 with FG on. Granted, I am on a 4090, so maybe that is the reason why. I am not doubting that you are experiencing stuttering I just want others to know that DX12 and FG does not cause stuttering in third party airports in all cases. Lots of my flying is in the PMDG 737's and the the Fenix A320 as well as some of the Black Square aircraft and the way I have my settings, I get nice, stutter and lag free performance. I wish others with 40xx cards that are not experiencing this could, because it IS possible. 

Using GSync? 4k? HDR? GSync is very good at overcoming the lag and stutter issue. But with OLED screens, causes flickering at night.

1 hour ago, techman said:

Yeah, that´s why theres no quality control for Marketplace-Items. I had to delete several airports since they occured stutter after Update 12. 

Conclusion: Don´t buy third party products that are not under steady maintenance.

IniBuilds themselves stated DX12 does not work well with their stuff.