As I’ve said elsewhere the only way you’re going to get a good test is in LOD levels or you are always going to be gpu limited.
Set everything ultra except LOD and raise that incrementally until just before the lesser cpu starts to struggle and then compare … only then will framerates have any meaning but even then there’s nothing to say the better cpu can’t go on further up the LOD scale.
How you can match the different ram speeds and latencies for the test is another puzzle.
I am glad that’s the case.
The previous user reporting that Alder Lake resolve his stuttering uses a 3090. So higher spec GPU. Then there is the matter of in game settings and LOD configs.
Generally, single core benchmarks put 12900K is head and shoulders above 5900x, hopefully AMD will in turn release higher performing CPUs soon: competition is good for us 
Stuttering can be caused by many different things. You seem to be equating single-core performance with reduced stuttering. I would strongly urge caution on making that assumption, as main thread bottlenecking doesn’t necessarily mean stuttering will occur.
Also, I’m not sure the point you’re making about the 3090 vs 3080 Ti. They are almost identical in performance, about a 5% difference. That’s not the controlling factor in stuttering, especially considering the 3090 is the higher performing one.
Agreed with this, would love to see this test done.
As a further example of GPU limitation see the below interesting post where a high resolution / VR user downclocked his 5ghz CPU to 3.6ghz and saw no difference in MSFS :
True but I am going to put my neck on the line and say at five in the morning shortly after my ISP has done all it’s maintenance and the lines are quiet LOD is the only way I can induce stutters on my maxed (@ 1440p rs) system regardless that it’s only a 3800X and an rtx3060. I don’t use 3rd party mods when testing and stutters only start when I’m pretty much solid main thread limited.
The point I am making is that those are two simmers with two different HW setups and two different settings confgurations.
Thought it was obvious.
Also, I don’t understand why you feel the need to make such harsh judgements every time someone writes something. I was just providing a link to a fellow simmer sharing his first hand experience, the first one on this forum on Alder Lake.
I am sorry if you don’t find the report precise enough for your tastes, my intention was not to disturb you or make you uncomfortable in any way.
I was just sharing a fellow simmer experience with a new CPU.
Have a nice day.
To say that my review is subjective is to state the my personal feelings were involved in this somehow. My reviews were not subjective, but rather objective and unbiased. I am not a fanboy of either and or intel. I only stated the results from the test I ran on a clean install of windows using all three processors; the 5900x, the 5950x, and alderlake.
That makes sense to me I originally had a GT1030 on this rig and could only ever dream of getting mainthread limited. My Cpu usage never got above 12%
You do not have to be at 1080p in this game to be cpu bound. It is more likely to be but in msfs with the terrain Lod maxed out you can be cpu bound by the main thread even at 4K. Especially when you throw so so traffic, boats, foliage, road traffic, airport vehicles, and airport ground crew sliders into the mix; all of which have to be rendered by the cpu.
If someone could help me, would be much appreciated. I have a Meshify C case /I9-9900K OC/RTX 3080/dark pro 4. Temperatures of CPU were rising occasionally up o 87-95 Celsius. So I decided to remove side and front panel, and temperatures went down about 8-10 Celsius. Highest temp I saw for my CPU with everything maxed out was 78 Celsius. So I wonder if I should keep my case open, under the condition to keep my pc clean. What do you think?
Just a guess/suggestion: have you thoroughly checked air flow direction for your case fans?
Meshify C is a small case. The technician told me that the heat of my GPU is rising up to the cooler (dark pro 4) and adds to the heat of the CPU, because everything is very tight within this small case. Airflow is correct, I was told, and that adding fans would make no difference. Honestly I don’t care how the case looks, I just need to know that I am doing the right think. Opening the case, I could not believe the difference in temperature of all parts. (GPU from 70 to ~62/ CPU from 87 to 78/ Ram from 84 to 78). Thank you for your answer, I will check out the videos. Sorry for my English!
Of course not, which is why I said almost exclusively:
You can run it open case in a clean environment, just attack it with a non metal paintbrush and a nearly but not quite touching hoover every once in a while. When temperatures start creeping up you can give it a thorough clean while replacing the the thermal paste. Don’t let the fans spin when hoovering.
I know I would. Am using one now with 16 and an Nvidia 1660 super. It really flies along, too. I only installed MSFS to prove that I needed another PC and I failed. I am looking at Alder Lake now, but am in no great rush, because the old one goes so well
Edit… oh dear… thought the post mentioned i7 2700k. 
Very happy with my 5900x/RX6800 custom water cooled combo.
Thanks for your advice. To be sure, I closed the case again, and made an LOWW approach RWY 11 (Gaya scenery) full ultra settings. CPU 87 Celsius, GPU 70, Ram 84. Opened the case again, same flight, same conditions, CPU 70!, GPU 62, RAM 78. I will use compressed air to clean my PC monthly(?), but will not be able to separately take out hardware to clean it, I am too inexperienced for this. Funny thing they said in reviews about Meshify C, that airflow is excellent. Well it`s not (dark pro 4, one fan front, one fan back).
*These are maximum temperatures, average are much lower of course
I’m a little surprised. That’s a pretty good dual fan tower cooler.
Maybe you need to re-paste the CPU and/or go with a dual front intake fan and single rear output fan and turn up the RPM’s.
No doubt that cooler is excellent. But too close to my Asus tuf rtx 3080 in this small case. Technician told me that heat from GPU is rising up to cooler and added to heat from CPU, causing these high temperatures. It a complete new PC, which was stress-tested for 24 hours (as they say), never exceeding 85 celsious. The expert said , what you are saying, to turn up RPMs. Would you suggest another two fans (120) one front and one top, so totally 4 fans? Need to mention, that I have “render scaling” to 200 for my 1080p monitor. Could that be the problem after all?
You generally want positive pressure inside the case to minimize dust being brought in. So try to have more intake fans than output fans. I don’t know the details of your case so maybe it’s too small, but if you had three intake fans on the front, one output fan on the back, and one output fan on the top near the back, that would be ideal.