Hello,
So I have been going crazy since war within launch due to graphical issues and what I have considered “stuttering” where certain parts of the screen seems to visually hitch for the smallest fraction of a milisecond.
So as a crazy man I have been running back and forth in dornogal recreating it and changing everything I can think of to try and what is causing it. Trying HAGs on/off, gsync on/off, vsync on/off. dx11/12, Different graphical settings.
Then I found this at the top of my screen that seems to start at the top left and then as I move go down to the bottom right, causing what I think is the “stuttering”.
https://imgur.com/UXo257G
I had shadow quality set to “good” and changing it to “high” at first seems to remove the “line”, but it still there and becomes “blurry” but the line is just less obvious as I improve the shadow quality.
Does anyone know what can cause this or have any similar issues?
I want to note that I am playing 4k with 4080s and 7800x3d.
I have no fps issues and it is stable at 117 fps.
I have tried blur bluster tests for everything I can think of and they don’t show anything.
I have not seen any graphical issues in any other game but WOW.
Thank you,
Holy
Update:
Turning on ray tracing seems to remove the line. However, I shouldnt have to tank my FPS to not get a graphical artifact.
Update 2:
Tried rolling back nvidia drivers, no change.
Tried 3 other games, no graphical issues.
Good thing you posted a screenshot, otherwise nobody would have guessed what you mean cause stuttering is something totally different 
Stuttering is something like bad framepacing or FPS drops.
Anyways, the phenomenon you are describing is just “shadow cascades” in action.
Basically the line you see between sharp and blurry is just the line where the game engine switches from higher quality shadows (closer to the player) to lower quality shadows to save on performance.
You can see this in most games, some more some less noticeable, but it’s there.
Bad examples are games like Wu-Kong without Pathtracing, or Indiana Jones The Great Circle (also without PT on).
It’s very obvious there since the shadows get VERY pixelated further away.
Shadows getting blurrier depending on the distance to the lightsource is more realistic.
Overly sharp shadows are mostly a relic from older games.
If you like them sharp then you will have to live with the more obvious transitions.
Imho raytracing shadows are not worth the FPS loss in WoW.
Also, your GPU could handle them no problem with high FPS but RT features usually have a large CPU overhead, which in a very CPU-limited game like WoW is obviously not a good thing
For example, my FPS will drop from say ~100 to ~80 in Dornogal going from ultra high to RT high shadows.
Meanwhile my GPU usage drops.
This is on a 5800X3D with a 4090 
So you can see the CPU-limit increases even more with RT on.