All your videos it shows you’re main thread limited and your GPU is above 90%?
I realise, however prior to SU5 I could lower my render scale and the framerate was limited by the CPU, now I have a render scale set to 70% but if I reduce it, I have a higher peak framerate. So my GPU is bottlenecking.
But again, and to keep this thread on topic. This isn’t a 4790k or DDR3 problem, as we have plenty of users with current hardware describing experiencing this issue. My modest hardware wouldn’t help though, agreed.
but not like in your videos… In my case it runs at near 4K with all ultra without the issue you describe. It is in very rare situation noticiable, as example on big airports and looking from cockpit up to the windows, but in realy high demanding situations only. We hade a similar discussion e.g. here. And I also re-tested NY with no issues.
Thus.. try to lower the settings and also the render-scale ( may be try to go to a WQHD render reslution ) and “play” with the LOD settings. You PC-system is just old.
On other side I can also agree with you in some points. It seems the sim is very strong optimized related to a xbox and does no longer use the full power of all PC systems ( e.g. use more memory for pre-loading ). But in your case be also aware that the memory shown in taskmanager is not the most relevant value. Please check the Resource Manager for commited memory.
The reason I don’t want to get into a debate about my hardware spec, is because I think we need to be careful about misclassification and masking of the problem. There has been an identified problem with the cache, and we would all benefit from optimisation of this.
The problem itself, as discussed in this thread, has already been identified as requiring a fix by the dev team and flagged for a resolution later this month. They have gone on to recognise this is an issue with the cache of the environment.
Whether that allows users to allocate more available system memory or video memory, well let’s wait and see, but I’d suspect that’s exactly what it will do. Let’s also wait and see how our systems perform after the fix. I’ll reiterate that stutter was not an issue for me, or most of us in this thread, prior to SU5.
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yep.. is just easier as to hear that a pc system older than 5 years can have trouble with resolutions near 4K 
I don’t have the best rig, but I’m using an I5 9600k, RTX 3070 and 16gb of DDR4 Ram at 1440p, and I get this issue anytime I pan the camera, even if i’m in the middle of the Atlantic.
Turning down LOD for me, doesn’t fix the frame drops, but increases my FPS to the point where the drops are not noticeable. I’m sure there are some limitations with my hardware, but i’ve previously used anywhere from 100-175 LOD without significant problems in previous updates, so as suggested by the devs acknowledgment, there’s pretty clearly something wrong with the game.
[Can’t directly reply because mobile is trash]
the question is.. what is the diff to my case ( settings / system ) 
?
And , I not speak about fps drops. I speak about noticable worst Stutters like in the video from OP.
Should it be realy the diff i5 9600K vs i7 8700K ? I can’t believe that. May be it is the amount of RAM ( 16 vs 64 ). What I seen is, that with Su5 the app use up to 16GIG commited memory. Or is it some kind of network speed.. I don’t know.. may be we should wait , as the OP mentioned, for the next patch and may be devs change again something like the view-cache ( or whats ever ).
I’ve seen people asking this many times in previous threads. I could ask the same for people getting CTD’s, as I haven’t had any in game.
Fact is people of all systems simply get different issues for reasons I don’t have the know-how to explain.
I agree, best thing to do now is wait for the hotfix, although I think they are addressing this issue in the next World Update.
Oh, and I do admit my stutters aren’t quite as bad as in that video, but still pretty bad.
This massive drop when panning the camera is experienced by everyone but as mentioned here, not everyone is bothered by it. I have 5800x and rtx3080 and 32gb ram and I see fps drop from 60 to 20s for a second or two each time I pan. Similar to the videos posted.
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ähmmm.. not exact.
Close the fps counter and then check whether your eyes “tell” you that there are stutters
What we can see in OP’s video is more as fps drop, it is stutter.. hard stutter till stops. Check the dev-counter, the whole picture “stops” ( e.g. 1:40 or so )… all , from game till the taskmanager.
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I do want to stress that the stutters in the video are worse than what I experienced, in real-time, in the sim. The video is recording during 100% usage on all cores, everything locks up, even sound starts to stutter in these peak load periods.
I echo Rwtc01, I can lower render scaling and fly over open ocean and the issue is still there. It is perhaps at its most prominent over dense photogrammetry like NYC, which is why I used that location to demonstrate the issue. However, I can dial everything to low in the settings and this still occurs, just with a higher peak framerate. Most critically, the sudden CPU saturation and FPS drop is still there, regardless.
I don’t think RAM quantity is the issue at all, because of the low utilization. I think it’s simply in lieu of memory allocation, the CPU is having to recall information very quickly from the disk, rather than it being cached as it was previously. It sounds like they are allowing for us to cache more, and probably use the memory available. I also turned off internet connection to test the theory of a wifi or network issue, but yes, no change, the problem was still there.
I think, and I’m just speculating here, that the dev team brought in a slew of great optimizations for the XBOX release, of which this was one, but perhaps failed to optimize or tweak it effectively, before SU5 release on PC. They’re addressing it quite quickly, so fair play.
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So the question is, how does the MSFS team justify considering Xbox One compatibility? They plainly say that CPU and GPU as limiting factors are a thing of the past. 
I personally won’t believe it until I see consistent reports of everybody with an Xbox One getting a smooth 30 FPS, at KJFK/KLGA and EGLL/EGLC…max traffic, Live Weather, total max settings. When it does not happen, the excuse may be; we have to wait for 6G internet 100 years from now.
There is always some new excuse to make flight simmers wait. 
as mentioned, check commited memory.. one example a quick shot from NY:
4.7 is what tastmanager show ( working set )
11.5 is commited memory ( ram + page )
I don’t have a SU4 vs 5 comparison of committed memory, I take your point though. But if we use the Developer Q&A Twitch Series, where we first saw the performance gains in SU5 - you can see “CPU Memory” goes from 16 to <5 GB in NYC. In fact it was memory utilization that was a key talking point.
The more time I spend looking into the issue, the simpler the explanation perhaps needs to be - I think the memory allocation changes in SU5 are simply moving the location/recall process of environment data elsewhere in the chain.
I mean look at it this way, the rendered image out of your cockpit, taking into account other optimizations, is still more or less comparable to previous updates. However the memory being used has been significantly, like greater than 50% reduced. Which suggests, as the devs have briefly touched upon, that there is less cached data outside of the viewport.
So perhaps one way of viewing it is, less efficient recall of environment data, but less resource intensive display of environment data - that was the initial tradeoff in SU5.
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yes.. they allways speak about the working set. The commited memory was the amount of memory which maked trouble already in former releases. In this case comes the pagefile into ‘the game’ ( not in my case, because own 64GIG RAM ). I also assume that they limit “some how” the usage of memory, may be with view-ports, don’t know. I’am not sure, but it seems this less data in memory is also noticable because the “details” comes later into the image as before. But the extrem stutters in your case.. hmmm… If we assume the “limitation” is same for all users, why I not get these horrible stutters ?
I think I upload a short fly around NY too, that you can see that I have no issues.. ( takes a while because YT rendering ).
EDIT: you have rolling cache enabled ?
Rolling cache enabled and disabled, low/ultra settings, render scale, online/offline, literally nothing I have tried has made the problem go away. It is definitely worse in higher load areas like NYC, but it’s still a problem regardless. A user on reddit circumvented the issue by moving the rolling cache onto a pci RAM drive, which suggests it is the recall of environment data, from wherever it is, that is the issue in SU5.
Maybe 64 gigs helps, maybe a 11900k would help, maybe a 3090 would help. Not sure though, as a user with a 5800x commented about 30fps drops just above a few comments. I don’t know what the variables might be, and I’m not sure why you are not having horrible stutters.
thats intressting.. if they now use the rolling cache much more, because they hold less data in RAM.. hmmm…
PS: video is online ( I will never get a pilot licence if these anyone see ) https://www.youtube-nocookie.com/embed/tP4e0zN_A5E
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I know it wasn’t mentioned in the hotfix, but just to make sure, we’re all still having this issue right?
I am, at least.