Hi Folks.
I had the strangest issue with my PC's performance recently. I've been using all the default 3D settings within the nVidia control panel, but after downloading the latest beta forceware from nVidia's site, I noticed the addition of Ambient Occlusion and Antialiasing Transparency. I'm fairly sure that I was able to turn on Ambient Occlusion without it causing any issues with my fav game - COD4. But the following day, my PC began to act rather odd. I was getting poor framerates in COD4 where there was a lot of grass like stuff. So maps like Overgrown were unplayable. I read that Ambient Occlusion kills framerates, so I disabled this and the problem resolved. I also read that if you are using Antialiasing Transparency on Supersampling, this will stress the GPU much more too, so I made sure this was on either Off or set to Multisampling. So no more framerate issue, but the PQ was very average. If I turned on either of these features, Antialiasing Transparency - Supersampling or Ambient Occlusion, the game was unplayable in parts.
Anyway... I'm sure the performance wasn't this bad before, so I tried everything to get it working better. I re-installed the graphics drivers, used Driver Sweeper, removed RivaTuner, all to no avail.
In a last ditch effort, I read that disabling various nVidia services can boost performance, so the only one I could find was nVidia Driver helper Service - SVVSVC... After disabling this, I couldn't believe the difference. I was able to set Ambient Occlusion and Antialiasing Transparency on Supersampling, also overall image quality I set to Very high, and the game never drops below 60fps in ANY scene. I don't know if it was luck or what but worth baring in mind if you have any performance related issues with your nVidia card.
I had the strangest issue with my PC's performance recently. I've been using all the default 3D settings within the nVidia control panel, but after downloading the latest beta forceware from nVidia's site, I noticed the addition of Ambient Occlusion and Antialiasing Transparency. I'm fairly sure that I was able to turn on Ambient Occlusion without it causing any issues with my fav game - COD4. But the following day, my PC began to act rather odd. I was getting poor framerates in COD4 where there was a lot of grass like stuff. So maps like Overgrown were unplayable. I read that Ambient Occlusion kills framerates, so I disabled this and the problem resolved. I also read that if you are using Antialiasing Transparency on Supersampling, this will stress the GPU much more too, so I made sure this was on either Off or set to Multisampling. So no more framerate issue, but the PQ was very average. If I turned on either of these features, Antialiasing Transparency - Supersampling or Ambient Occlusion, the game was unplayable in parts.
Anyway... I'm sure the performance wasn't this bad before, so I tried everything to get it working better. I re-installed the graphics drivers, used Driver Sweeper, removed RivaTuner, all to no avail.

In a last ditch effort, I read that disabling various nVidia services can boost performance, so the only one I could find was nVidia Driver helper Service - SVVSVC... After disabling this, I couldn't believe the difference. I was able to set Ambient Occlusion and Antialiasing Transparency on Supersampling, also overall image quality I set to Very high, and the game never drops below 60fps in ANY scene. I don't know if it was luck or what but worth baring in mind if you have any performance related issues with your nVidia card.
