FPS performance - VRAM bug?

FPS degradation due to performance is totally normal and there’s no issue with that. This topic is not about it.
It’s about having stable 30FPS and 1 second later (just staying on ground) it goes down to 5-10. If you’re lucky it comes back to 30 again with no apparent reason or if you can take of with 10 FPS it suddenly becomes 30 again very soon.
That’s not normal behaviour and that’s why the there’s strong doubt about the quality if VRAM management of the sim. Have more items popping or have some degraded FPS while GPU runs on full power when you’re at the limit - but even the latter isn’t happening. GPU shows 100% but cools down like it runs on 30-50% maximum every time that happens…

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Yes, I agree, but as long as you don’t run into the VRAM overcommitment -in my humble opinion caused by bad optimalisation, bugs and a possible memory leak- the sim runs absolutely fine on Ultra preset.

I think Asobo is not honest with there statement.
The ideal system is not enough to run the sim on 4K, ultra settings and 30 fps.
Certainly not on a approach or on the ground of a large airport.
With that system you have to throttle down the settings and use DLSS and Frame generation.

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Yes. That’s why I say it’s an issue to repair. First time I tried put everyhing on Ultra and limited to 30FPS in NVDIA tool. Run like charm until I’ve flown GA planes and small airstrips. Worked a lot better than 2020 ever and without any stutters.
Arriving to large airports introduced this issue. And VRAM usage was around maximum earlier too (4K resolution, 3080 with 10Gbyte of VRAM) but sim could handle that usage.
It can be a lot of things as I’m not an expert of DX programming and VRAM optimization I’d not go into ideas but a simple “not enough RAM/VRAM” issue should not cause such abrupt performance changes. Gradual ones yes, they’re normal, have your GPU performance start limit your sim, etc.

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Yes, I know and I do it. But it keeps coming back even less frequent. Sometimes it happens even with less than 80% of VRAM usage.

It’s always been so, new and modern game, new computer or computer upgrade. :wink:

Nope. It’s never been so.
And not even the current best GPUs would solve it. 4K and VR is plagued until it’s solved. For 2K you might tell they can “solve” it buying the latest and greatest but it’s not an option for 4K. Unless you downscale it to 2K.
So nope, it’s not a simple “performance issue”. That’s my point. It’s a programming issue around VRAM management.
Performance issues are normal and happen gradually. And you can manage them with settings/new HW, etc., also gradually.
This isn’t true in this case. And I’m not talking about playing on Ultra or Medium textures. According to tests it only effects a few hundred Mbytes of reported VRAM usage at 4K. So how reports on well over 20 Gbytes of VRAM usage happen? What do they store there and why is it necessary? If it’s really that necessary why wouldn’t the automatic setup takes it into account (let alone the advertised specs?)

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Did anyone see this? Lets see what gets released today…

  • Fixed performance issues at various airports
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I believe that this VRAM issue will not be fixed in this small patch because it seems to be something much deeper in the code related to DX12.

But who knows? It doesn’t hurt to hope xD

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That’s a specific bug at specific airports (there’s a thread about it by that airport’s developer over on MSFS DevSupport). It may have wider applicability beyond that developer’s airports, but don’t count on it.

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The information Asobo gave so far is not enough to jump into any conclusions. I am watching the “Stutters at majority of airports” thread as well, and “they” are also hoping :slight_smile: Let’s see…

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i agree
this is something for one of the big system updates, unfortunately

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This new patch fixed my stuttering, thank you for rolling this out before 2025

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I thought it had fixed mine, but as soon as I came in for landing it returned. Still not fixed.

The Sim continues to explode the VRAM

I just did a 360º with the camera and BOOM: 6 FPS 9.8GB/8GB used. (RX7600)

I have the textures at minimum, TLOD at 70, OLOD 80, buildings at medium, trees at medium, Raytraced Shadows OFF… There is no way to reduce anything from there. Reducing anything more than that will turn this simulator into a FS2004 cosplay.

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noº 1 most voted bug for msfs 2024 yaaayyy!!

now all we need is the developers to read the bug section… oh no… wait…

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I have experienced this issue since 2024 launch and the stutters begin on approach just before landing/touching down on the runway. The patch this morning was to address another stuttering issue which was introduced in patch 3 where at certain major airports, there are extreme stutters (rubber-banding) while taxiing until you’ve left the airport surrounding area.

I agree the landing performance issue still exists and is bigger, considering Asobo have attributed it to a hardware limitation.

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Does it do this if you fly back to that same airport? I’ve experienced similar, but usually only an airport I’ve never flown to before, i.e. uncached. Now, yes, you could argue, “well it should do that well before touchdown.” But, FS2024 things…

In other news, no change for the VRAM bug I take it folks? :face_with_peeking_eye:

No. I actually experience it each time I fly into, I think cached airport as I usually do most of my testing between the same airports. However, there is no issue if I start my flight at that same airport.

Typically the performance is great at the start of, and during the flight. Even though the final approach is relatively smooth. It’s when I’m above the runway just before touching down when the FPS drops from 40+ to single digits and continues all the at to the gate. It does recover a little bit, not fully. :grinning:

Ah, bummer. Sounds like my 3070 days, but usually it started as soon as I loaded in… :face_exhaling: