I would like to enlist your help in further tweaking my SkyrimPrefs.ini (and maybe the Skyrim.ini if needed).
My PC is very much low end (in fact, under minimum requirements) but it can run the game relatively well so far.
My main issues currently are water, light reflection/torches and indoor dust, which give me some very choppy gameplay. Other than that it runs reasonably, with a mini freeze every minute in outdoor areas and fluent play indoors when there aren't too many reflections (such as draugr dungeons and dwemer ruins - those are bad)
I also noticed that over the 70 some hours played, areas that used to run good have deteriorated in performance somewhat. Maybe this is due to the savegame size increasing? Any pointers on that separately?
My specs currently are:
WinXP SP3 32bit
Core Duo 2.16GHz
2MB RAM
256MB NVidia GeForce Go 7900 GS
My system is very well maintained and optimized so it tends to run better and crash-free compared to similar systems. Haven't had game crashes on any games for a long time (except when it is an inherent problem with the game)
Without further ado, here's my SkyrimPrefs.ini:
[General]fBrightLightColorB=1.0000fBrightLightColorG=1.0000fBrightLightColorR=1.0000iStoryManagerLoggingEvent=-1bEnableStoryManagerLogging=0[Imagespace]bDoDepthOfField=0iRadialBlurLevel=0[Display]iBlurDeferredShadowMask=0fInteriorShadowDistance=1.0000fShadowDistance=1.0000iShadowMapResolutionSecondary=256iShadowMapResolutionPrimary=256iShadowSplitCount=2iMaxAnisotropy=1fLeafAnimDampenDistEnd=1.0000fLeafAnimDampenDistStart=0.5000fTreesMidLODSwitchDist=1.0000fGamma=1.0000iShadowFilter=0fDecalLOD2=1500.0000fDecalLOD1=1000.0000fSpecularLODStartFade=0.1000fShadowLODStartFade=0.1000fLightLODStartFade=0.1000iTexMipMapMinimum=0iTexMipMapSkip=2bTransparencyMultisampling=0iWaterMultiSamples=0iMultiSample=0iShadowMode=3bTreesReceiveShadows=0bDrawLandShadows=0bDrawShadows=0bFull Screen=1iSize H=900iSize W=1440fMeshLODFadePercentDefault=1.2000fMeshLODFadeBoundDefault=256.0000fMeshLODLevel2FadeTreeDistance=2048.0000fMeshLODLevel1FadeTreeDistance=2844.0000fMeshLODLevel2FadeDist=3072.0000fMeshLODLevel1FadeDist=4096.0000iScreenShotIndex=2bShadowMaskZPrepass=0bMainZPrepass=0iMaxSkinDecalsPerFrame=0iMaxDecalsPerFrame=0sD3DDevice="NVIDIA GeForce Go 7900 GS"bFXAAEnabled=0iShadowMapResolution=256fShadowBiasScale=0.5000iShadowMaskQuarter=3iAdapter=0iPresentInterval=0bFloatPointRenderTarget=1[Grass]b30GrassVS=0fGrassStartFadeDistance=0.1000fGrassMaxStartFadeDistance=0.2000fGrassMinStartFadeDistance=0.1000bDrawShaderGrass=0[Water]iWaterReflectHeight=256iWaterReflectWidth=256bUseWaterDisplacements=0bUseWaterRefractions=0bUseWaterReflections=0bUseWaterDepth=0bUseWaterHiRes=0[MAIN]bGamepadEnable=0bCrosshairEnabled=1fHUDOpacity=1.0000bSaveOnPause=1bSaveOnTravel=1bSaveOnWait=1bSaveOnRest=1fSkyCellRefFadeDistance=20000.0000[GamePlay]bShowFloatingQuestMarkers=1bShowQuestMarkers=1iDifficulty=2[Interface]bDialogueSubtitles=1bGeneralSubtitles=1bShowCompass=1[Controls]fGamepadHeadingSensitivity=1.0000fMouseHeadingSensitivity=0.0350fMouseHeadingYScale=0.1800fMouseHeadingXScale=0.0350bAlwaysRunByDefault=1bInvertYValues=0bGamePadRumble=0bMouseAcceleration=0[Particles]iMaxDesired=200[SaveGame]fAutosaveEveryXMins=5.0000[AudioMenu]fAudioMasterVolume=0.5000fVal7=1.0000uID7=0fVal6=1.0000uID6=0fVal5=1.0000uID5=0fVal4=1.0000uID4=0fVal3=0.3500uID3=94881fVal2=0.5500uID2=466532fVal1=0.8000uID1=554685fVal0=0.6500uID0=1007612[Clouds]fCloudLevel2Distance=262144.0000fCloudLevel1Distance=32768.0000fCloudLevel0Distance=16384.0000fCloudNearFadeDistance=1000.0000[TerrainManager]fTreeLoadDistance=2500.0000fBlockMaximumDistance=75000.0000fBlockLevel1Distance=25000.0000fBlockLevel0Distance=15000.0000fSplitDistanceMult=0.4000bShowLODInEditor=0[NavMesh]fObstacleAlpha=0.5000fCoverSideHighAlpha=0.8000fCoverSideLowAlpha=0.6500fEdgeFullAlpha=1.0000fEdgeHighAlpha=0.7500fEdgeLowAlpha=0.5000fTriangleFullAlpha=0.7000fTriangleHighAlpha=0.3500fTriangleLowAlpha=0.2000fLedgeBoxHalfHeight=25.0000fEdgeDistFromVert=10.0000fEdgeThickness=10.0000fPointSize=2.5000[Trees]bRenderSkinnedTrees=0uiMaxSkinnedTreesToRender=1[Decals]uMaxDecals=0bDecals=0bSkinnedDecals=0uMaxSkinDecals=0uMaxSkinDecalsPerActor=0[LOD]fLODFadeOutMultObjects=5.0000fLODFadeOutMultItems=3.0000fLODFadeOutMultActors=6.0000fLODFadeOutMultSkyCell=1.0000[Launcher]bEnableFileSelection=1bShowAllResolutions=1uLastAspectRatio=4[BlurShaderHDR]bDoHighDynamicRange=0[BlurShader]bUseBlurShader=0
Please let me know what additional lines I can add and which variables I can change to further improve performance. I really don't care much about how the game looks as long as it runs fluently.
Note that I have avoided 0 values for several variables as others have pointed out that this can tune a variable to "infinite" instead of "off".
It is also possible that for some water/shadow values I may have gone too low for the game to recognize and those are then read differently. Please let me know if that is the case.
Any way to reduce light reflections and dust in particular would be very very welcome.
Also, excuse my noobishness, but I have mainly been editing the SkyrimPrefs.ini file in My Documents\My Games\Skyrim as opposed to the game directory SkyrimPrefs.ini so I am not sure if these need to be duplicated or amended or somesuch.
Thank you in advance. Please feel free to use this also yourself to help you boost your game performance.