When talking about a PhysX Card in a computer, first you have to understand that when we refer to physics in this situation, we are talking about how people and objects in a game move and react to any and all stimulus.
Sometimes when physics  are handled by a computers CPU, the gamer might not get the explosion or    debris that he or she is expecting. 
Until recently, this has been  true because   there has only been limited software physics integrated  into games. 
Many games have effects made to imitate real   physics  (movements or explosions), but usually seem to fall short. 
However,    newer games such as City of   Villains, and Auto Assault are made for  use with a PhysX Accelerator Card to create more intense,   realistic,  physical gaming. 
 A PhysX Card  is an expansion card that installs   in a computer for the purpose of  producing more physical action in computer   generated graphics. 
It is  placed around a physics processing unit (PPU), which   is similar to a  graphics processing unit (GPU) on a video card. The PhysX Card is meant  to take   over the processing of the physical actions and effects for  the CPU so the CPU   can use more of its power for other tasks or  instructions.  
A PhysX Card also contains its own RAM for   use in these  processes.
Simply put, the PhysX Card is a special accelerator   with a  sole purpose of delivering a more realistic physical gaming    environment.  
| Some examples of what   a PhysX Card can do:  
 | 
PhysX accelerator  cards are   available from many leading game system vendors, not to  mention from leading   Physics Cards makers such as BFG and ASUS. 


















































