The primary function of any modern video card, true since the idea of hardware acceleration first came to market, is to take load off the CPU. If the CPU is tied up doing very intensive graphics computations, it has less time to execute the rest of the game or other program being run. In the late 90s, beefier 3D was the primary focus of video cards, and the two standard APIs used today, OpenGL and Direct3D, reflect this. Cards supporting native functions would be able to take over for the CPU. In the games of 2003 and beyond, physics have taken an increasing toll on the CPU. Half Life 2, Battlefield 2, and similar games have complex physics engines that require beefy processors. What if the video card could take over some of those functions as well? BFG wants to do
just that, by producing a video card that will handle not only graphics processing, but physics processing as well. The company' will be using the Ageia physics processor in their 'PhysX' line. Even competitors to BFG are supporting this, which lends credibility to BFG's claim of physics processors becoming just as common as standard GPU's. It seems these cards will be standalone, not having to be coupled with video cards, but time will tell. We may end up having a Voodoo-2 style situation where you must couple it with a video card. Time will tell, but this is great news and shows good improvement.