Quote Originally Posted by Luka_Aveiro View Post
Physics calculation generally are at use of core 1 (assuming core 0,1 or 0,1,2,3).

if you use the command "sys_physics_cpu 3", physics calculations will be executed in the 4th core of a quad-core.
Well I'm pretty sure 0 means disabled, So it would do Software based Phsyics from what I can remember coding my custom cfg. So If you wanted Physic on the 4th core, you would have to use sys_physics_cpu 4.

Here is the video I remember seeing explaining the physics command.

Also, On my Q9450 with my Custom CFG, i see crysis using 50-70%(total) of my quad.