X1900 on an SLI board?

[DanceswithUnix]

I suppose it's all a bit of speculation at this point, since there are no PPUs on the market, and the info seems locked up under non-disclosure agreements. But the whole PPU idea is giving some hope that I might actually someday use that second graphics port on a SLI/Crossfire mobo. But does it have to all be within the same brand?

Sounds like the current GPU physics implementation uses the standard graphics driver.

If this is successful though, you can bet Microsoft will extend the API to specifically include it though.

[Artic_Kid]

Sounds like the current GPU physics implementation uses the standard graphics driver.

I'm of the understanding that Nvidia has paired-up with a third-party PPU software developer, and so has ATI. I presume that third-party PPU software is either loaded onto the graphics card, or is incorporated into a new GPU driver, or both. If the GPU physics implementation simply uses the standard graphics driver, then: (1) I'd be surprised, since the two functions (physics & graphics) seem so different that an efficient simultaneous implementation of both would be unlikely. And (2) There would be no need for the alleged third-party PPU software developers -- game developers would simply use the standard graphics driver. Perhaps I'm missing something here?