We all knew when Nvidia announced their plans to buy Ageia that we would see on-board physics processing video cards very soon, but I don't think anyone but Nvidia employees expected it would come this soon. Answering reporter's questions, Nvidia CEO Jen-Hsun Huang has made some very interesting comments that pertain not only to future cards, but also the current 8 series that is running in many computers right now.
Nvidia is, at this very moment, in the process of encoding the PhysX software into Nvidia's very own CUDA. While that probably means nothing to the normal user, CUDA is Nvida's programming interface that was made for developers, allowing for custom made general purpose applications. The great part about CUDA is that it has already been implemented in all of the 8 Series cards.
So what does that mean for your average 8 series card user? That with only a small software download, all 8 series cards will be able to do PhysX processing with their current GPUs. This also means that with a little programming and bandwidth, Nvidia will be able to put PhysX capability in more computers in one day, than Ageia was able too in it's entire career.
Even more promising is that our current GPUs (graphics processor on video cards) and PPUs (physics processor on PhysX cards) and nearly identical in design and in their calculations (both are calculated using floating point number matrices). This means that there is every chance that current gen cards will have no problem doing both graphical and physics processing.
Strait from the horses mouth...
"We're working toward the physics-engine-to-CUDA port as we speak. And we intend to throw a lot of resources at it. You know, I wouldn't be surprised if it helps our GPU sales even in advance of [the port's completion]. The reason is, [it's] just gonna be a software download. Every single GPU that is CUDA-enabled will be able to run the physics engine when it comes. . . . Every one of our GeForce 8-series GPUs runs CUDA."
Even more intriguing to me, and the other SLI users out there who's second card sits mostly useless is what he had to say next...
Our expectation is that this is gonna encourage people to buy even better GPUs. It might—and probably will—encourage people to buy a second GPU for their SLI slot.
Finally, maybe my second 8800 will actually have some real use, this can't come soon enough in my books.
From TechReport
And yes, the X looks kinda stupid, but that's how they marketed it and it'll probably stay that way.
Still good news though, as long as software support comes through.