With regards to Hilbert review on PhysX, has anyone notice the same situation as discussed in the link below? Hilbert, did you noitice this at all? I would like to know if this is true or not. I have not installed the new driver pack as of yet. http://www.fudzilla.com/index.php?option=com_content&task=view&id=8862&Itemid=34
I just tried it and had the same thing. I'm not sure if this is just an XP issue or not as CUDA has a much bigger CPU overhead on XP. It stands to reason though that CPU intense games should have the CUDA calculations on a separate thread for better performance.
Folding Home GPU client (cuda) have problems in XP it use 100% from one core, and in Vista it just use 4-5% of the CPU, speed it the same maybe this is similar problem