I’m afraid MSFS (unless when it will have true multi-screen support) is really not the main deal when it comes to uplift compared to a 3090. It’s too CPU bottlenecked, even as of yet if you put the very best CPU there seems to be for MSFS which seems to be the 5800x3D at the moment. Your GPU will be bottlenecked. Now there’s DLSS 3 so…
I don’t know for other people but for me DLSS is a no go as the instruments are so blurred out with it, but then again I only play on a 1440p screen so it doesn’t help to alleviate the problem.
As of yet, I think the 4090 is really something that will shine on, at the very least, something like Cyberpunk 2077 with highest ray tracing which is quite demanding on the GPU and is not that much CPU bound, just like the vast majority of other games.
The problem is, as usual with very high end cards that only a minority will buy, by the time you’d find an optimized enough true graphical gap in games (which now requires exponentially more and more resources from gaming studios, and is becoming a real problem) worthy of such a beast, the 60xx will be out and there you go again… You might say “Well, at least it will be a long term investment! It will still run well in 2-3 years with so much power to begin with!”. Yup. It will. Sort of… because by the time you reach at last that really noticeable enough graphical gap that that 4090 would have seem worthy of it, the generally poor “optimization” will have your 4090 run at a good 60-70 fps, possibly slightly less (if you don’t push it too much). Good enough? Until you see benchmarks and reviews of that brand new, shiny, 3000$ just released RTX 6090 that is able to pull those huge figures… and you’ll be tempted again if you have enough money! I guarantee you any of the current 4090 buyers will!
Bottom line is, there will be one game or two, if any, where you’ll see your 4090 at its TRUE best AND efficiently used. And that’s if you’re lucky enough to be interested by the very very few AAA games that will be interesting enough graphically wise to warrant such a pricey GPU…
I switched to a 2070 Super (from a 1070) when it was released, obviously not the biggest beast of its gen, but not so far off. Before I switched to a 3070ti recently due to some friend selling it to me at a dirt cheap price cause he was switching to 4090 and didn’t care for the money in the slightest (lucky guy but lucky for me incidentally).
I asked myself “Out of all my experience during the 20xx gen, when did I told myself that I really put my GPU to good use and took a slap in my face with really a next gen experience?”
Only 2 times (MSFS and especially Cyberpunk 2077) and a third with less impact (Metro Exodus last edition focused on ray tracing) did I told myself “Wow! This is something!”. It’s no longer the huge and phenomenal graphical gap you had when you bought something capable of running Crysis back then… yet, GPUs are getting more and more hugely powerful and cost more and more a fortune.
I’m thinking GPUs are growing too fast compared to the gaming industry and the resources they can afford to put into elevating themselves to getting closer and closer to photoreal renderings instead of “simply” making games only looking a little better each time but so poorly optimized they consume the raw power of GPUs just so game devs don’t have to deal with optimization, counting on our GPUs performances to “brute force” adequate FPS instead…
It’s as if car makers were dealing with a problem where each new car they’d design would exponentially be heavier than the last and they would have to slap bigger and bigger engines to the point of having an F1 engine to still be able to run a family car or your nextdoor neighbour’s sedan at 100mp/h lol
Luckily, we have 3D engines big name like Unreal now who are finding innovative ways like Nanite for example. But still…