Checking on the consensus here:
My only question is do you need to disable it at the BIOS level? If so then good for 2024 bad for 2020.
Thoughts??
Fs 2024 / gpu AMD 9070xt / 1440p / TAA + Frame Generation fsr 3.1 :
ReBar OFF in bios works for me : less vram used (typically 8G on 16G), less stutters, everything smoother, 60 - 120 fps with ultra quality
Someone said that setting done in profile inspector is reseted when you change driver. (Can’t verify by mysef since i have an AMD Gpu)
Bios settings will stay.
If you update your graphics driver with the “clean installation” option checked all settings that you had set in profile Inspector and via NCP will be reset to default. ReBar will be disabled.
Alright so to be able to run airliners at major airports, there’s basically one set of settings I landed on (16GB VRAM, 5120x1440p, 9070XT, 9080 X3D, 64GB RAM):
My conclusion is that this software is an abomination 
I’ve been doing less flying and more fiddling with Bios, Driver and game settings than all my gaming life put together, I think. And I’m comfortably above their IDEAL specs.
What I still don’t understand is why it’s not making available as much VRAM as it can. In the menu the VRAM available shows as 14.6GB, nothing else open in Windows. Going in flight, it might be 14.6GB with Rebar OFF, it might be 13.3, it might be 12.9. Same airport, sometimes different plane though. With rebar ON, only 12.2 GB are available. Windows itself shows 13.1GB/15.5 used at maximum. So I can’t understand why it’s leaving performance on the table.
Why are you using such tiny LODs with a 9800x3D? With your setup you should be able to get much more out of it than that.
FS2024 is anything but an abomination, and SU2 is a noticeable step on from SU1.
I blame the GPU manufacturers for a lot of this. 16GB of VRAM just isn’t enough for 4K gaming in 2025, and the fact that both major players have released a new line up of GPU’s with only a single card having more than 16GB between them is nuts.
Asobo should be pushing the boundaries with FS2024, but the number of people moaning about performance who then say they have low spec machines is ridiculous. Not your case, but it’s just thread after thread with the same complaints…I just read one who was moaning like heck then states they were on a laptop. With respect, what do you expect?!
I also have a 9800X3D and can hardly push past 200 on both TLOD and OLOD without frames dropping <30 or Dynamic Settings constantly cutting it in half anyway.
Have a look at this post;
Yeah, you’re also running a 4090 which is quite a different story than both my 7900 GRE and the 9700 XT of the post above - just because the 9800X3D can process +200 LODs doesn’t mean ones GPU can keep up.
TLOD is entirely on the CPU, it’s always been like that.
The CPU processes it but still has to pass those things onto the GPU to render. If it’s exclusively on the CPU then why would I see a VRAM or GPU response time change when only changing the LODs?
…because you’re changing the amount of demand on the CPU, that has an effect on GPU times.
TLOD has always been on the CPU since the day FS2020 released.
That doesn’t explain an increase in VRAM - and the point remains, if your GPU can’t keep up it doesn’t matter how well the CPU can handle the LODs.
Do you use MSI afterburner / Rivatuner to monitor your GPU usage/utilisation? You will be able to see right there exactly what is going on in real time.
Increasing the LOD makes no difference to my GPU utilisation for what it’s worth.
LODs at minimum vs. LODs at max (as allowable by the GUI). MainThread obviously increases, but is still within reasonable values - meanwhile GPU response time and, most importantly, VRAM usage is absolutely unusable.
According to those shots your LODs are the same? 
LOD factor is just the amount that the Dynamic Settings is modifying the set LOD in the GUI. So a factor of 1 means it’s not changing it at all - a factor of .5 means it’s reducing it by half, etc.
Ah sorry, I don’t use that feature.
Fair enough, that must be a change for 24 vs 20 then as in the older game the CPU bore virtually all the TLOD burden.
There is clearly an issue with VRAM and the way it is used in the game. What settings do you have in the NvidiaCP? That isn’t overriding your in-game settings with higher ones is it?
I have an AMD card and don’t use any external settings through the driver/AMD app.
As far as 2020 vs 2024 on CPU utilization, that’s likely because 2024 is now more optimized for CPU usage so it is suddenly able to pass along quite a lot more to the GPU instead of being virtually always bottlenecked.
Fair point.
I don’t know what to suggest then other than the obvious, but that might not be an option.
As I said, I just don’t understand what AMD and Nvidia were thinking of releasing their lines of GPUs in 2025 with only one card between them carrying more than 16GB VRAM.
