Ive noticed while experiencing the VRAM issues that Live traffic remains tracked along my previously flown route, even at hundreds of miles away. Could this be part of the issue?
Ok @GrumpySpy874058, finally had some time to test this with my own 7900XT. Although I don’t yet have the Ini A350, I used the FBW A380 (4k) at EGLL with BATC traffic, everything set to high, TLOD 250 with clouds on Ultra. I’m also on standard 1440p. No pictures necessary… I was utilising 18gig of VRAM with 4.9 in shared. Interestingly, the usual “available” VRAM dropped from 19.175 to 18.332. Further interestingly, FPS was around the expected for the rest of my rig, not like the Charlie Chaplin film I used to get on my old 3070. 
I tried some of the more civilised models such as the Ini A330, and Ini A300, VRAM usage was around the 14gig mark, much more what I’m used to seeing with this card. I suppose it could be the A380 is just a brute force VRAM hog at this point in time. I have no such problem in FS2020.
I have no plans to get the A350 just yet, but I have no doubt I could probably easily repeat what you’ve seen. Roll on SU2… for now, back to Euro Truck Simulator 2 for me.
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Yeah, the part that drives me nuts is seeing the available VRAM take a dive any time I push the sim to its limits. When I’m flying the new Skywagon around Montana it shows +15GB available but is only using 9 or 10 - but the second I need those 15GB with an airliner at JFK, suddenly I only have ~13GB available, with nothing in the background changing.
Indeed. I personally think this anomaly is the key to understanding why it does what it does. I used to think it was because other programs were running such as BATC, but this really isn’t the case, for me at least anyway.
It is, especially if you insist on using the frankly-absurd 8K textures with it.
Description of the issue: After experiencing using MSFS24 for the last months, I now find out that problem is not my system which causes Stutters and FPS drops. I have massive FPS drops and stutters happening at EDDF-EDDM-EGLL.EHAM no where else i get this big stutters.
Did you experience this issue before you joined the Beta?
[PC Only] Did you remove all your community mods/add-ons? If yes, are you still experiencing the issue? Yes nothing changed
FREQUENCY OF ISSUE
How often does this occur for you (Example: Just once, every time on sim load, intermittently)? Everytime
REPRODUCTION STEPS
Please list clear steps you took in order to help our test team reproduce the same issue:
1.Reinstalled the sim
2.Deleted all the folders and tried without addons
3.Any kind of DLSS and frame gen mode
4- Deleted DX cache, Nvidia cache, sim cache , rolling cache and so on…
What peripherals are you using, if relevant:
[PC Only] Are you using Developer Mode or have you made any changes to it? NO
[PC Only] Many issues may be due to an outdated graphics card. Please state your Graphics Card Driver Manufacturer (NVIDIA, Intel, AMD) and Version:
[PC Only] What other relevant PC specs can you share?
RTX 4090
I9 13900 INTEL
64 GB DDR5 RAM
MEDIA
Please add a screenshot or video of the issue occurring.
[END OF FIRST USER REPORT]
For anyone who wants to contribute on this issue, Click on the button below to use this template:
Do you have the same issue if you follow the OP’s steps to reproduce it?
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Thank you for the replication. Drive safe mate! I am still on SU1 beta flying the 350 around without cabin, which is usually smooth.
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It’s really strange, but I find the 4K version results in worse performance than the 8K version. Maybe the 8K has some kind of LoD optimisation which the 4K lacks? So for me 8K it is.
Do you have the same issue if you follow the OP’s steps to reproduce it?
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yes,absolutely.
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Using laptop cpu:ryzen 7 7435h
gpu: rtx 4050 6gb
ram:4800 32gb
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• NO screeshots …But I actualy meet this bug.
Do you have the same issue if you follow the OP’s steps to reproduce it?
Yes
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7800X3D, RTX 4080
MSFS 2024 with SU1
FPS will just drop to 5-10 FPS with VRAM being about 95%.
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the performance is a disaster I have a very good system and I have big lag, it’s awful. I completely deleted MSFS 2024 and reinstalled everything new, and lags everywhere. I tested MSFS 2020 with much higher settings, it’s extremely smooth and 100 fps on average
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MSFS 2024 is wasting my time. I have spent more time in troubleshooting and restarting the sim due to sudden fps drop which never recovers until I restart the sim than having meaningful sessions.
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Reporting in briefly from SU1 after a reinstall. I was able to load into the default A330 at the handcrafted KJFK with high settings and not immediately be out of vram. I was at about 10.3 to 10.5GB out of 11 gb with my 3080ti but no overrun. Turning down trees and buildings to medium and the TLOD to 50 got me under 10gb of vram. Definitely a step in the right direction for me.
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Is it also the VRAM bug that your vram filles with 12GB when only in the ui and not even loaded a plane or looked at a plane?
I think that’s because the sim is loading the entire world in the background, which is meant to be a feature of the sim, not a bug. In 2020 it took time to load one version of the earth for the World Map, and then had to unload it and load an entirely different one when you began your flight, which accounted for some of the long load times most users still see in 2020. In 2024, that loading starts the second you get to the Main Menu, which means your flight loading time is decreased because it has already pre-loaded much of what it needs (in some cases I can go from the “start flight” button to in my aircraft in fewer than 15 seconds, which is amazing).
very well explained
although, in my view, if you are going to do that, then you gotta do it right
if its going to explode the vram then it’s of no use
Performance overall has been a lot better for me lately, but one area that still concerns me is the way the sim seems to not release VRAM entirely after use. Here are two identical flights in a 152 in the middle of nowhere. The first was the first flight of that sim session, the second was after having previously loaded an A20N at a gate at KJFK. Clearly some of the VRAM being used in that higher-stress scenario never got released, resulting in a 53% VRAM usage increase between the first and second visits to the middle of nowhere with a 152.
Pre-KJFK:
Post KJFK:
Another user suggested this is (unfortunately) a common occurrence among titles that leverage DX12, and while I can understand that puts some of it out of Asobo’s control, DX12 is still a Microsoft product that we can hope sees improvements over time.
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As far as I am concerned (aka read it on the forums) this is not an issue of DX12 but a feature. It is giving memory management into the hands of the developers. If it’s not done right you run into problems.
If true, then this remains a Microsoft problem because it’s occurring with no addons.
In the DEV Stream it was said, an issue with VRAM and raytracing has been found. How many of us had VRAM issues only with RT on? For how many did disabling raytracing do the trick?
To be honest my hopes for SU2 are not too big…
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