framerate is playing pong on me

Posts: 710
Specs:

Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.53 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz

I have a 9600M GT and 9400M. I am playing on the 9600M GT and I have configured my settings so I should be getting a smooth 30-40fps constantly. It is "fine" if I stay in one spot and not move the camera. By "fine" i mean that instead of constantly bouncing between 5 and 50fps it bounces between 20-35. By this I mean it will go up to ~40 then drop down to about 5-10 then bounce back up to 40. This is completely regular and no introduction of more effects or activity seems to change this.

I have the latest graphics update installed, and turning the settings down does not seem to change the fact it still does this. Is there some setting I am missing that fixes this? I am running natively at 1440x900 and don't want to change that unless it is the only way I can make this playable.

Any suggestions or recommendations as to how to fix my frame rate issues?
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Posts: 5
Same problem here....Complete inconsistent framerates. The update DID help however. Instead of the framerates dropping to 5 when I clicked on a pylon they stay above 25 when I am on medium settings.

THe fremrates are still all over the place and teh performacnce still lacks cmpared to windows...sigh
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Posts: 710
OK, thanks to another forum member I was able to get a great start with making a config that runs pretty smooth.

Below is my Variables.txt file. This will run at about 20fps on a late 2008 MBP using the 9600M GT. I have 4GB of ram and a 2.53Ghz processor, so if you have less than that you will need to expect performance to be lower. I have it setup so my textures are on high, if you bump that back to medium then it will run at about 30-40fps. For the most part it seems to have eliminated the bouncing frame-rate, you can still expect some but very rarely.

alphadepthWrite=1
aolight=0
creepnormalmap=1
creepQuality=1
creepreflection=0
creepselfshadow=0
creeptrans=1
deff=0
deffspec=0
depthDisp=0
displayflyerhelper=None
displaymode=2
displayunitstatus=None
dof=0
dragscrollspeed=1
fogvolume=0
foliagedensity=0.250000
foliagequality=1
frameratecap=60
frameratecapGlue=40
gamehdr8bit=1
gamma=1.092000
GraphicsOptionEffectsDetail=1
GraphicsOptionLightingQuality=0
GraphicsOptionModelQuality=2
GraphicsOptionMovies=3
GraphicsOptionOverallQualityVer7[5]=4
GraphicsOptionPhysicsQuality=0
GraphicsOptionPortraits=2
GraphicsOptionPostProcessing=0
GraphicsOptionReflections=0
GraphicsOptionShaderDetail=1
GraphicsOptionShadowQuality=1
GraphicsOptionTerrainQuality=1
GraphicsOptionTextureQuality[2]=2
halo=0
hdr=1
hdr8bit=1
height=900
hotkeyprofile=2_GridLeftSide
LastChallengeId=ZergInfestation
lastDeviceId=2147
lightingLevel=0
lightmap=1
lightmapcastshadows=0
localao=0
localeidassets=enUS
localeiddata=enUS
localight=0
localShadows=0
lowqualitymodels=0
lowQualityMovies=0
mousescrollenabled=1
mousescrollspeed=30
mousesensitivity=0.500000
mousewheelzoomenabled=1
MoviesSeen=1
music=1
MusicHeard=1
normalmap=1
parallax=0
parallaxshadow=0
particlelod=1
particleobjects=0.000000
particleterrain=0.000000
physicsdensity=0
pixellight=1
portraits3d=1
preBlendedCreep=0
preferWindowedFullscreen=0
profanityfilter=1
reducemouselagenabled=0
ribbonlod=1
sampleFOW=0
shadowmapsize=2048
shadows=0
simplifiedCloaking=0
simplifiedShaders=0
soft=0
softshadows=0
softshadowTaps=6
SoundAutoDetectCPUCoreCount=2
soundchannels=32
soundoutput=Default
SoundQuality=1
spec=1
splatlod=1
systemutilitykeysdisabled=1
targettexeldensity=1.400000
TerrainTextureHiResCacheSize=8
TerrainTextureLowResCacheSize=50
TerrainTextureSize=768
texQualityLevel=2
texSpace[2]=640
textureBasedFOW=1
transparentshadows=0
treadlod=1
useLowqualitymodels=0
voicechatmode=1
voicechatsoftwaremute=0
vsync=0
watercaustics=0
waterflipbook=1
waterreflection=0
waterrendertargetformat=1
waterrendertargetsize=768
watershadow=0
width=1440
windowheight=819
windowx=121
windowy=63
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