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Which is the more relevant for Octane? If I was gonna use Octane, do I buy a GeForce with more CUDA cores but less RAM, or a Quadro with more RAM but less cores?

Finally, is nVidia's "compute capability" they rank all their cards with on http://developer.nvidia.com/cuda-gpus a relevant metric, or just some arbitrary marketing gibberish (see http://developer.nvidia.com/cuda-faq)

Richard7666 wrote:Which is the more relevant for Octane? If I was gonna use Octane, do I buy a GeForce with more CUDA cores but less RAM, or a Quadro with more RAM but less cores?

Depends what you need and what type of scenes you will be rendering. Most people on the boards would rank memory higher than speed. FYI: There are a few GeForce cards with 2 GB.

Richard7666 wrote:Finally, is nVidia's "compute capability" they rank all their cards with on http://developer.nvidia.com/cuda-gpus a relevant metric, or just some arbitrary marketing gibberish (see http://developer.nvidia.com/cuda-faq)

The compute capability isn't a performance ranking. It tells you the capabilities of the card. The higher the number, the more advanced (and recent) the card.

See here for more details: http://en.wikipedia.org/wiki/CUDA#Versi ... ifications