It is the gpu.
When I have the optons menu open gpu usage is 10-12 %. and temp is 32-35
When I go into the regular screen it is at 70% usage even when doing nothing. for a few minutes.
I have the graphics to low but when I double check it says custom even though things are turned off and low texture is checked.
I think I will try the nvidea control pannel 3D setting to use my integrated Intell for everything and see what it does. That and auto select do the same thing.
I just started a new game and the gpu did much but not as bad. I wonder if that is just to the fact there are less objects for the gpu to calculate for.
To me it feels like the gpu is constantly working. Even when I am not playing.
Another goodie is the nvida control panel does not list GCIV in its 3D settings but does list GCIII. I wonder if more control of the gpu by the game is needed.