i was wondering : does the 24go of vram from the 3090 over the 12go of the 3080ti makes any difference in triple screen on MSFS ?
Does the additional VRAM (double actually) is worth the performance on triple screen (im only interested in triple screen perfs) ?
I have a 3080ti on my triple 1440p setup and it never runs at much more than 50-60% of its memory. No idea if that helps. 
i think your probably cpu limited somehow 
but thanks anyway
The card runs at about 90-95% capacity according to task manager, it’s not got much more to offer and the ram is never used fully so I doubt a card with larger ram will help any.
I have a 3080 Ti with three monitors. The main one is 4K and the two side ones are only 1080p. The card handles it well and I seldom see it use all 12 Gigs of ram. At about 11 Gig it starts using system RAM, which is not a problem, other that it being slower, since I have 128 GB.
It will only fill up In big photogrammetry cities when running Ultras setting and rendering at 4K. If you use or render at 1440p (2K) or 85% of 4K ( which is 3K) or run on High-end setting, you shouldn’t run out of VRAM and using RAM.
I’m very happy with my 3080 Ti. But if the 3090 isn’t priced much higher, go for the 3090. Besides the extra VRAM, it does perform just a little bit better.
2 Likes
hey folks
i got a 4080 finally … and i have to tell you something : i never tought that the sim can perform like this ! Performances are UNBELIEVABLE ! everything maxed out on ultra 4K with FSLTL at full capacity on the A32NX FBW and you have 140 fps using DLSS3 + FG !