It’s true. And the 4090 was the one piece of hardware we overpaid on in order to get the machine built. 
Good day, I built a gaming pc last month, with 11700kf and a RTX 3090, but it’s difficult to handle 4k@60fps, probably due to single thread issue of the game (gpu load is about 40-50%, cpu similar but with single core heavy workload in windows task monitor). I’m using TLOD/LOD around 80.
Actually I see fps drop when rotating virtual view in cockpit (it drops to 40-50fps, then returns to 60)
Do you think upgrading from 11700kf to 13700kf (13900) will change this substantially, or not?
I chose the 11700 because I thought the extra cores would be useless with msfs, but seeing now that performance is at its limit , I think maybe the more modern 13-series architecture could warrant me an improvement and let me stabilize 4k@60fps.
What do you think? Is it worth the cpu upgrade?
Andrea
My advice would be to stop chasing FPS unless you want a 13900K with a RTX 4090 and still be scratching your head on how can I get more fps. If you can balance things out to achieve fluid play within the sim with 30fps or above then you will have succeeded in getting a pleasant experience. You need to balance your sim settings (Global rendering quality, TLOD, vsync, resolution, etc) with your monitors refresh rate and video card settings. There are many threads on this forum discussing this in detail along with many YouTube videos to assist you. Unfortunately, since MSFS is a beast and no two PC’s are alike your settings to achieve the ultimate zen balance will be similar yet different from others.
This thread may be interesting…
Less fps, but smoother - General Discussion & Interests / General Discussion - Microsoft Flight Simulator Forums
Good luck!
Hi everyone, just wanted to ask something. I have recently upgraded my pc (fully new build actually) to this:
13900k, rtx 3090, 64gb DDR5 6400, z790 gaming X Ax, 1000w pure power 12 m, 990 pro 2tb.
I’m quite happy with the system and all seems to be performing as expected. However, in msfs, I’m kind of surprised about how low the fps can go in heavy airports, SPECIALLY when I enable FSLTL, due to the 13900k being maxed in 3 cores (so, cpu limited).
Honestly I don’t know if this is expected with this cpu. I use maxed settings, 3440x1440 (terrain at 300 and refresh screens to medium). At heathrow with fsltl, fps can go as low as 23/25 fps with the 3090 barely at 50%. I can see 3 pcores maxed while the rest are barely being used (total cpu usage about 10% in such situation). If I disable fsltl the cpu seems to handle the same place at about 40/50 fps, which still seems kind of low. I tried dx12 but same, HAGS on/off same, resizable bar same, low latency, threaded optimizations on/off same, etc. is this the performance of the 13900k?
The question is…I have the 13900k in default settings (no OC), and it won’t go below 5,5ghz in msfs but I have HT enabled so I wonder if there is something I should change in order to better use this cpu in msfs. I mean, enable/disable HT, affinity, etc.?, or if it is what it is, and that’s standar performance and there is not much to do to improve it.
thanks!
Pretty much this.
You’ve already found the two real knobs you can turn, traffic and TLOD.
Turn down TLOD to 200 and see what you think.
I cut back my IFR traffic in FSLTL just so the world feels somewhat alive, but I keep the number of planes around 10 in the air, similar on the ground.
Hate to say so, but that’s pretty consistent w my performance and I have a 4090. Turning off all other air traffic - FSLTL or in-game - and dialing back ground vehicle traffic at airports and on roads takes away from realism and immersion but improves fps performance and smoothness significantly. Like10-15 quality fps.
Ok, thanks both for your replies. So, I guess there is not much to do. Looks like even the 13900k is not enough to handle msfs (well, not the 13900k fault actually, but the fact that the sim is so CPU limited).
I previously had a 6700k, which gave me about 20/25 fps in similar conditions and since the IPC difference in single core is about double for the 13900k, I expected, more or less, double the fps (40/50), but looks like nope!
And don’t get me wrong, it is a big improvement, but I would have liked a bigger one.
The major impact, for some reason, seems to be fsltl. As mentioned above, if I turn it off, the cpu manages to push almost 60fps everywhere but once fsltl is on, in big airports, things start to go downhill very fast.
It all comes down to whether FS2024 will have the core optimization we’re all hoping for.
If so, the decision to invest in a current gen chip becomes somewhat easier than waiting 6 months to a year for next gen hardware.
I’m personally waiting for a year with my 3090 Ti and 5800X3D before making that decision. By that time FS2024 should be exposed for the godsend (or not) I hope it will be.
3 Likes
Reviving this. I just bought the i9-13900kf i was wondering if anyone had the chance to try it on a 2k monitor. I dont have a 4k and to me a 4k monitor isnt worth the upgraded. Fo a tv sure but cor msfs no.
I also have 64GB @ 6000MHZ, RTX 3080, watercooled, etc.
Im coming off of a i7-7700k skylake with the 3080 so really itll be a huge jump in my eyes so if anyone responds you know im not coming off of anything near that cpu
4K is very worth it. For TV also.
I don’t know how to explain the increase in resolution.
Kind of like driving down the super highway in a Model T.
1 Like
Going from a 27" 2K HDR monitor to a 32" 4K HDR+ monitor was a huge improvement.
I think HDR+ made a huge difference, but 4K is an improvement for a seating position close to the monitor.
My specs are below. I have the 14900 which is not much of an uplift over what you have. I’m running 2k on a 32 inch monitor. The sim runs great for me at ultra settings locked at 60fps
System Specs:
Processor: Intel® Core™ i9-14900KF Processor
Motherboard: ASUS PRIME Z790-V
Memory: 32GB [16GB x 2] DDR5-6000MHz
Video Card: GeForce RTX 4070 SUPER - 12GB GDDR6X
Monitor: Acer 32" 1440p
Operating System: Windows 11 Home
Internet down/up speeds average 950/40 Mbps
What are you wanting to know? If it’s a performance question you can simulate an increase in monitor resolution with render scaling in the options.