Download is my smallest computers settings for Skyrim.
(should be the fastest/lowest settings possible)
It has nothing to do with the no shadow effect
you need to edit your .ini files to make that happen.

You can also run Skyrim at:
iSize H=600
iSize W=800
or
iSize H=480
iSize W=640


This really works well !!!
-------------------------------------------------------
I'm sure I don't have them all listed, but you get the ideal.

An easy way to pick up 10 - 20 FPS and remove shutter all together,
is to just remove the shadows from the game completely.

Basically what you do is:
[Set all the Shadow Resolution inputs to 128 and every other "Shadow" setting to 0]
All of them, in both the Skyrim.ini and SkrimPref.ini ... for it to work right.
Even removes that fire shadow blur. Should pick you up
about 10-20 FPS and improves movement dramatically.

[Use the notepad and search for the word "shadow"]
in the Skyrim.ini and the SkyrimPrefs.ini

I've been playing Skyrim like this from the start and have never had a problem with it.
I do this to most every game I own and they all run better afterwards. Way better!
[This one trick alone is worth everything you have tried to smooth Skyrim out too]
Add ATTK to this and you have a brand new Skyrim. Reason why this is so completely
effective is the shadows unlike the rest of the graphics are created with the CPU and
not the GPU. Removing this load from the CPU is dramatically effective.

SkyrimPrefs.ini
EXAMPLE SETTINGS ...
(do not copy/paste)

iBlurDeferredShadowMask=0
fInteriorShadowDistance=0.0000
fShadowDistance=0.0000
iShadowMapResolutionSecondary=128
iShadowMapResolutionPrimary=128
iShadowSplitCount=0
fShadowLODStartFade=0.0000
iShadowMode=0
bTreesReceiveShadows=0
bDrawLandShadows=0
bShadowMaskZPrepass=0
iShadowMapResolution=128
fShadowBiasScale=0.0000
iShadowMaskQuarter=0
iShadowFilter=0
bShadowsOnGrass=0
bDeferredShadows=0
bDrawShadows=0