Im playing 1920x1200 so using an Antialias is useless in this game.
When i turn it off im able to have about 60-80 fps in my game now (30-40before with sttuter sometime), and no visible difference in graphics quality.
I WONDER IF EVEN ATIALIAS IS IN THAT GAME AT ALL?
I hope it helps anyone who wants play on ultra settings with good framerate (i mean really good).

With antialias off i can use UGRIDSTOLOAD 11 or even13 without single crash (it gives you extraordinary view distance)

Normal multi-sample FSAA leaves trees, grass and many other things without anti-aliasing. You need to enable transparency AA as well in order to catch those. However this causes a large performance hit.
I get the best results by disabling MSAA and just using FXAA. It looks nearly as good as MSAA+Transparency AA, but with almost no performance hit.

Yes sir ,
I have FXAA on, but antialias in skyrim launcher off, rest maximized including ugridstoload and grass&tree&plants draw distance

With antialias OFF like i said im able to have uber performance and so on i can set my view distance to max , with gridstoload=9 or 11 or 13 without single crash.
Below i will post my SKYRIM.INI and SKYRIM.PREFS text files if you want to have same fun as i have.

SKYRIM.INI:

[General]
sLanguage=ENGLISH

fdefaultfov=95 ADDED
uGridsToLoad=9 ADDED
uInterior Cell Buffer=16 ADDED
uExterior Cell Buffer=128 ADDED


[Display]
fShadowLODMaxStartFade=1000.0
fSpecularLODMaxStartFade=2000.0
fLightLODMaxStartFade=3500.0
iShadowMapResolutionPrimary=2048
bAllowScreenshot=0
[Audio]
fMusicDuckingSeconds=6.0
fMusicUnDuckingSeconds=8.0
fMenuModeFadeOutTime=3.0
fMenuModeFadeInTime=1.0
[Grass]
bAllowCreateGrass=1
bAllowLoadGrass=0
[GeneralWarnings]

[Archive]
sResourceArchiveList=Skyrim - Misc.bsa, Skyrim - Shaders.bsa, Skyrim - Textures.bsa, Skyrim - Interface.bsa, Skyrim - Animations.bsa, Skyrim - Meshes.bsa, Skyrim - Sounds.bsa
sResourceArchiveList2=Skyrim - Voices.bsa, Skyrim - Voicesixtra.bsa
[Combat]
MagnetismStrafeHeadingMult=0.0
fMagnetismLookingMult=0.0
[Papyrus]
fPostLoadUpdateTimeMS=500.0
bEnableLogging=0
bEnableTrace=0
bLoadDebugInformation=0
iMinMemoryPageSize=100000 ADDED
iMaxMemoryPageSize=5000000 ADDED
iMaxAllocatedMemoryBytes=3400000000 ADDED
[Water]
bReflectLODObjects=1
bReflectLODLand=1
bReflectSky=1
bReflectLODTrees=1

SKYRIM.PREFS:
[General]
fBrightLightColorB=1.0000
fBrightLightColorG=1.0000
fBrightLightColorR=1.0000
iStoryManagerLoggingEvent=-1
bEnableStoryManagerLogging=0
[Imagespace]
bDoDepthOfField=1
iRadialBlurLevel=2
[Display]
iBlurDeferredShadowMask=3
fInteriorShadowDistance=3000.0000
fShadowDistance=4000
iShadowMapResolutionSecondary=1024
iShadowMapResolutionPrimary=2048
iShadowSplitCount=2
iMaxAnisotropy=16
fLeafAnimDampenDistEnd=4600.0000
fLeafAnimDampenDistStart=3600.0000
fTreesMidLODSwitchDist=5000
fGamma=1.0000
fDecalLOD2=1500.0000
fDecalLOD1=1000.0000
fSpecularLODStartFade=1500
fShadowLODStartFade=200.0000
fLightLODStartFade=3500
iTexMipMapMinimum=0
iTexMipMapSkip=0
iWaterMultiSamples=0
iMultiSample=2
iShadowMode=3
bTreesReceiveShadows=0
bDrawLandShadows=0
bFull Screen=1
iSize H=1200
iSize W=1920
fMeshLODFadePercentDefault=1.2000
fMeshLODFadeBoundDefault=256.0000
fMeshLODLevel2FadeTreeDistance=12288.0000 MODIFIED
fMeshLODLevel1FadeTreeDistance=16384.0000 MODIFIED
fMeshLODLevel2FadeDist=12288.0000 MODIFIED
fMeshLODLevel1FadeDist=16384.0000 MODIFIED
iScreenShotIndex=2
bShadowMaskZPrepass=0
bMainZPrepass=0
iMaxSkinDecalsPerFrame=25
iMaxDecalsPerFrame=100
bFloatPointRenderTarget=0
sD3DDevice="NVIDIA GeForce GTX 560 " CHANGE TO YOUR GRAPHICS ADAPTER
bFXAAEnabled=1
iShadowMapResolution=2048
fShadowBiasScale=0.25
iShadowMaskQuarter=4
iAdapter=0
iPresentInterval=1
[Grass]
b30GrassVS=1
fGrassStartFadeDistance=25000.0000 MODIFIED
fGrassMaxStartFadeDistance=25000.0000 MODIFIED
fGrassMinStartFadeDistance=10000.0000 MODIFIED
[MAIN]
bGamepadEnable=1
bCrosshairEnabled=1
fHUDOpacity=1.000
bSaveOnPause=1
bSaveOnTravel=1
bSaveOnWait=1
bSaveOnRest=1
[GamePlay]
bShowFloatingQuestMarkers=1
bShowQuestMarkers=1
iDifficulty=2
[Interface]
bDialogueSubtitles=0
bGeneralSubtitles=0
[Controls]
fGamepadHeadingSensitivity=1.0000
fMouseHeadingSensitivity=0.0125
bAlwaysRunByDefault=1
bInvertYValues=0
bGamePadRumble=1
bMouseAcceleration=1
[Particles]
iMaxDesired=750
[SaveGame]
fAutosaveEveryXMins=15.0000
[AudioMenu]
fAudioMasterVolume=1.0000
fVal7=1.0000
uID7=0
fVal6=1.0000
uID6=0
fVal5=1.0000
uID5=0
fVal4=1.0000
uID4=0
fVal3=1.0000
uID3=0
fVal2=0.4000
uID2=466532
fVal1=1.0000
uID1=554685
fVal0=0.8000
uID0=1007612
[Clouds]
fCloudLevel2Distance=262144.0000
fCloudLevel1Distance=32768.0000
fCloudLevel0Distance=16384.0000
fCloudNearFadeDistance=9000.0000
[TerrainManager]
fTreeLoadDistance=75000
fBlockMaximumDistance=250000
fBlockLevel1Distance=70000
fBlockLevel0Distance=35000
fSplitDistanceMult=1.5
bShowLODInEditor=0
[NavMesh]
fObstacleAlpha=0.5000
fCoverSideHighAlpha=0.8000
fCoverSideLowAlpha=0.6500
fEdgeFullAlpha=1.0000
fEdgeHighAlpha=0.7500
fEdgeLowAlpha=0.5000
fTriangleFullAlpha=0.7000
fTriangleHighAlpha=0.3500
fTriangleLowAlpha=0.2000
fLedgeBoxHalfHeight=25.0000
fEdgeDistFromVert=10.0000
fEdgeThickness=10.0000
fPointSize=2.5000
[Trees]
bRenderSkinnedTrees=1
uiMaxSkinnedTreesToRender=40 MODIFIED
[Decals]
uMaxDecals=1000
bDecals=1
bSkinnedDecals=1
uMaxSkinDecals=100
uMaxSkinDecalsPerActor=60
[LOD]
fLODFadeOutMultObjects=15
fLODFadeOutMultItems=15
fLODFadeOutMultActors=15
[Launcher]
bEnableFileSelection=1
bShowAllResolutions=1
uLastAspectRatio=4
[BlurShaderHDR]
bDoHighDynamicRange=1
[BlurShader]
bUseBlurShader=0

Is this working okay with patch 1.5, the ugrids did my saves in and I can't get them back?
Tried all the console ini tricks to no avail.

To revert back ini ugridstoload settnigs bug:

There is a fix for this, which is to load the game at the higher setting and then do the following lines at the console:
setini "ugridstoload:general" 5
saveini
refreshini

Then save and quit, and change the uGridsToLoad to the desired value.

Sorry, but this game is full of jaggies at 1080p. It looks great with 8x MSAA enabled. Still get great performance with it enabled.

NEW Tested , SKYRIM.INI maximized details, field of view, distance view, trees, plants and grass and many other tweaks (memory budget settings at the end - helps ugridstoload crashing) - Remember to turn off antialiasing from skyrim launcher, rest can be maxed, including FXAA and so on.

[General]
sLanguage=ENGLISH
fdefaultfov=95
uGridsToLoad=9
uInterior Cell Buffer=16
uExterior Cell Buffer=100
iNumHWThreads=4 -important for quads

[Display]
fShadowLODMaxStartFade=1000.0
fSpecularLODMaxStartFade=2000.0
fLightLODMaxStartFade=3500.0
iShadowMapResolutionPrimary=2048
bAllowScreenshot=0
fSunShadowUpdateTime=.25
fSunUpdateThreshold=1.5
bActorSelfShadowing=1
bAllow30Shaders=1
bAllow20HairShader=1
bDo30VFog=1
bDoTallGrassEffect=1
bDoTexturePass=1
bDoSpecularPass=1
bDoDiffusePass=1
bDoAmbientPass=1
bUseRefractionShader=1
bUse Shaders=1
bUseSunbeams=1
fDecalLifetime=30.0000

[Audio]
fMusicDuckingSeconds=6.0
fMusicUnDuckingSeconds=8.0
fMenuModeFadeOutTime=3.0
fMenuModeFadeInTime=1.0
[Grass]
bAllowCreateGrass=1
bAllowLoadGrass=0
[GeneralWarnings]

[Archive]
sResourceArchiveList=Skyrim - Misc.bsa, Skyrim - Shaders.bsa, Skyrim - Textures.bsa, Skyrim - Interface.bsa, Skyrim - Animations.bsa, Skyrim - Meshes.bsa, Skyrim - Sounds.bsa
sResourceArchiveList2=Skyrim - Voices.bsa, Skyrim - Voicesixtra.bsa
[Combat]
MagnetismStrafeHeadingMult=0.0
fMagnetismLookingMult=0.0
[Papyrus]
fPostLoadUpdateTimeMS=500.0
bEnableLogging=0
bEnableTrace=0
bLoadDebugInformation=0
iMinMemoryPageSize=100000
iMaxMemoryPageSize=5000000
iMaxAllocatedMemoryBytes=1800000000
[Water]
bReflectLODObjects=1
bReflectLODLand=1
bReflectSky=1
bReflectLODTrees=1

[Trees]
bForceFullDetail=0
bEnableTreeAnimations=1

[TerrainManager]
bKeepLowDetailTerrain=0
bDisplayCloudLOD=1

[HAVOK]
iNumThreads=2

[Imagespace]
bDoRadialBlur=0
[BackgroundLoad]
bUseMultiThreadedFaceGen=1
bUseMultiThreadedTrees=1
[Decals]
bDecalMultithreaded=1
bForceAllDecals=1

[BudgetCaps]
uActorMemoryBudgetCap=20971520
uLoadedAreaNonActorMemoryBudgetCap=371195904
uWaterMemoryInterior=20971520
uTextureMemoryInterior=20971520
uGeometryMemoryInterior=20971520
uWaterMemory=10485760
uTextureMemory=20971520
uGeometryMemory=10485760

i have an easy solusion for slightly better performance on HD6950 cards
turn off AA and so on in the game launcher, force AA on from the cataclyst program.
Made me get 5-10fps

Where can I learn more about the above?

I find 4xAA and 3xTransparency AA is more than enough.

unless they have changed this recently(?) you never could force AA through the card. it has\had to be turned on in game. but the msaa or ssaa made a difference. i would check some stairs or rooftops to confirm that your aa is on!

...oh yeah and with that card you shouldnt be haveing to many troubles. Im useing an hd 6870 and I have all the usual texture mods, ugrids 7, SSAA x4, and i get about 50-60 fps in most areas....the forest is a bit of a killer for me, 35-45 fps.