Issue: I am getting this weird jitter that is making the dungeuons nauseating to play. It seems to be more tied to the mouse than WASD, and it is only in dungeons. It looks like the screen is shaking violently, like I am pulling in the choppiest, laggiest 3FPS ever, despite the fact that fraps has be locked at 60. Of interest though, is that fraps actually shows me going up to 75-80 FPS in the raw video, even with VSync on.

You can't see the issue in the video below, but you can see where it begins. It is when i move my mouse down, you will see it hang for a micro second, and everything after that is a violently vibrating screen. I will take a video with my camera later and post it when I get home.

EDIT: Cant post links? The youtube link is in my profile.

Specs:
i7 920 OC @ 3.8Ghz
24 GB 1600Mhz RAM
2 x Sapphire 6950 2GB Dirt 3 Editions
Razer Mamba
Razer Black Widow

The youtube link is in my profile.

Yeah I get lag in certain dungeons to, one of the worst dungeon lags for quick performance testing is 'BrittleShin Pass' go inside and two areas in that dungeon that kill my fps and lag like hell are light from ceiling with waterdrips and a round staircase with wind from above.

Horrible areas.

I havent figured out the cause yet, try turning off AO, AA, AF and lower shadows to med.

Thats the weird part though, I am locked 60FPS everywhere. I dip to the upp 50's if I go to a town like the execution and there are all the NPC's there, but still. This is on all max settings too. It's really hard to explain. I will be for sure posting a video tonight though.

AMD and crossfire....dont play well with Skyrim...or so I have read.

I use Nvidia, and i also had this..turning off AO in Nvidia inspector fixed it for me.

To be sure we are on the same page. The Jitter/stutter is so bad, it looks like the camera is mounted to a Gear, and is going up and down the hills of the Gear? Move slow you can see it jump up and down...made me sea sick.

Ok, Sounds like what i have. Its like if you were to very quickly shake your head back and forth. Not like, "No" back and forth, but like, the locked shoulder, tucked chin, voilent vibration back and forth. AMD just released their drivers, and I finally get good performance. Before that, it was horrible, like 45FPS Mid settings with my rig.

Two votes for AO though, so I will try it. I heard somewhere it was a fog mesh issue, but I can't find any corroboration on that.

Regarding fog lag try this it may help http://www.skyrimnexus.com/downloads/file.php?id=736

Use the fixes in the post in my signature for First Person Stutter. Should solve your problem.

One solution is to download an "antilag" file with a d3d9.dll but this caused some really bad screen tearing. The other, which I was using up until recently, was to run in windowed mode (but as you'd know, disables crossfire). There are a few other solutions that either don't work or have other weird side effects.

The fix that worked for me was capping the FPS to 59, and v-sync still works (so no screen tearing). In the latest beta of http://forums.guru3d.com/showthread.php?t=357421 they added framerate capping (Nvidia recently added this into their drivers I believe... come on AMD!). Just add TESV.exe to the application profile properties, click the setup icon and add 59 into the framerate limit box. I can finally play the game with crossfire, in fullscreen mode and without the mouse skipping/stutter. Message me if you need better instructions.

Wow, bless your heart, this fixed the crossfire microstutter with my two 6950's. Funny thing is that I set the cap to 60 fps and vsync is still on. So everything is great!

I had the same issue as R4di4ti0n.

I just fixed it with Nvidia Inspector, selecting the Skyrim profile and set framelimit to 60, with Vsync enabled in Skyrim ini. No screentearing, no jitters!

No idea why Skyrim's V-Sync doesn't work on it's own, considering it's 60FPS.

Good lord, I spent about 5 days trying to resolve this. THANKS

EDIT: Sorry, forgot you were on AMD, bro. Just use a framelimiter. Here's one:

http://skyrim.nexusmods.com/downloads/file.php?id=34

here's something else, idk
http://skyrim.nexusmods.com/downloads/file.php?id=48

unfortunately, looks like they use a dll hook. Which means you maybe can't use ENB and stuff, if you're into that.

There are probably other AMD tools out there that will do it. Maybe they won't need a hook. Hopefully AMD gets one in their Control panel soon.

Just as a heads up, MSI Afterburner is perfectly compatible with AMD cards and still offers all the goodies as it would with Nvidia cards, including the fps limiter.

i found the boarderless window mod fixed all my dungeon fps issues.