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Posted

It might be too soon to know for sure...

I installed nVidia RTX driver 566.45 this afternoon.  I then did two sessions (boot after the driver install but none between sessions) flying from KORS (very detailed ORBX airport) to KBFI (another very detailed ORBX airport) in the Asobo TBM 930.  The frame rate at both airports stayed above 30 (after frame gen) and there was no stuttering or indication of system stress.

The GPU stayed at 100% busy (DLSS/Performance TLOD=100 OLOD=200 high trees and clouds) and the max/continuous VRAM usage was 8192.

That load before the driver update was a certain trigger for VRAM overload and a severe drop in FPS. 

A 2nd interesting observation after the driver update - My MSFS 2020 load time plummeted to half (about  2-minutes) of what it had been prior to the update.  And this was with 20 detailed addons, including five ORBX airports, Seattle landmarks and SeaTac VFR objects.

AMD Ryzen 7 9800X3D  / MSI X870 Tomahawk Mobo / 64 GB DDR5 memory / RTX 4070 Super with 12 GB VRAM / AORUS FO48U 4k display
 SSD for Drive C, an NVMe device dedicated to Flight Sim 2024 and a separate NVMe device for Flight Sim 2020 and an NVMe dedicated to 500GB of addons managed by AddonsLinker   / 1 GB Comcast Xfinity Internet connection / HP Reverb G2 / Tobii 5 Head & Eye Tracking

 

Posted (edited)
On 1/9/2025 at 7:34 PM, TacomaSailor said:

Frame Gen/Performance in settings, empty community, stock 172, no changes to settings between sessions and no PC boot.  Flying out of KBFI north over Elliot Bay and south over the Green River Valley for all three sessions.  

Two separate sessions this morning - .  First was giving consistent 55 - 80 FPS and second to 50 to 75 except when looking at KSEA which dropped FPS into mid-40 range.  3060 Ti GPU stayed in the 85% - 90% busy with VRAM staying below 7.5 GB (out of 8 GB)

Four hours later - exact same scenario expect GPU is at 100% and VRAM is > 7.9 GB while sitting on the ramp dark and cold. FPS is <18 and drops to 12 - 13 when flying.

CPU times per frame stay the same in all three sessions.

The same thing happened the last two days.  First couple sim sessions show 75 - 85 FPS but later sessions are very much lower.  In a couple cases - just flying for 30-minutes and then returning to the departure airport caused the FPS to drop from 80+ to less than 20.  Changing the graphics settings from Custom (medium and high) to all LOW does not improve the FPS.

What is happening?

FPS is as shown by Dev Mode/Display FPS.

What is happening??

Cloud gaming 

Edited by altenae

MSI Tomahawk Z790, I7-13700K, DDR5 6000mhz, MSI 4090, 3x SSD 980 PRO, Corsair 360 Liguid CPU cooler, Corsair H1200V2 power.

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