with D300 for mobile dev?

[jpine]

@marksatt-pitbull;111048

Thunderbolt->PCI-E enclosures are interesting, but not supported.

Two points, your 3,1 isn’t taking full advantage of the Nvidia GTX 570 - that’s a known deficiency in the 3,1 model which I believe only manifests under OS X. That’s why the Nvidia 680 Mac Edition and AMD 7950 Mac Edition were marketed for 4,1 models or later - the 3,1 isn’t able to feed them data fast enough under OS X.
Second, there’s a further OpenGL/driver bug we are investigating that affects faster Nvidia GPUs in 4,1 & 5,1 Mac Pros and prevents them from running as fast under OS X as they do under Windows. This doesn’t seem to affect the mobility GPUs in MacBook Pros, or iMacs AFAIK, since they run the OpenGL 3.3 renderer (command-line: -opengl) approximately as fast in either operating system.
By contrast the ATi Radeon 5**0 cards in the 4,1/5,1 Mac Pros or the AMD FirePro D*00 in the 6,1 work similarly well across OS X and Windows.

Thanks Marksatt! I was aware of the 3,1 bottleneck but not the nVidia issue. So, in the abstract, which Mac and GPU combination would best be able to push something like the Elemental Demo around at 85+ fps? I can live with Win7 on Bootcamp, but prefer OSX.

Thanks again. Your input has kept me from making a costly mistake twice now.

Regards,

Jerry