I captured some data here from a Fraps benchmark of Trackmania 2: Canyon. I graphed this in Excel which you can view in the large image below. It clearly shows very horrible micro-stuttering and huge framerate drops that match up to periods of very low GPU usage. When the framerate is pretty high I see around 90-95% GPU usage on both GPUs. But every so often the GPU usage will drop on both cards down to 35-45% and the framerate tanks!
Framerate Graph - Image 11577x862
http://shadowdane.com/public/TM2-Canyon ... %20SLI.png
Nvidia Driver Settings
Driver Version: 285.27
Forced Alternate Frame Rendering 2 SLI Mode - Seems to work but lots of performance problems as you can see!
Game Settings
Shadows: High
Shaders: VeryNice
Texture: High
Max Filtering: Anisotropic 16x
Geometry details: Normal
Water Reflections: High
Car Reflections: High
Anti-Aliasing: FXAA
As it stands right now I can't really play the game much as almost all tracks cause huge stuttering and performance issues... The only way I can get it to run well is running everything on Low, but my PC is more than capable of running this with everything turned up!
Nadeo I really hope you guys can iron out these performance issues!