I use Blender with my iMac Late 2012 and I have the graphics card NVIDIA GeForce GTX 660M. In the internet it says, that this graphics card has CUDA but however I cannot change the 'Compute Device' in my User Preferences. Anyone an idea?

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    $\begingroup$ install latest official drivers, try again. $\endgroup$ – Vader Feb 27 '14 at 15:42
  • $\begingroup$ Drivers for the graphics card? $\endgroup$ – Codey Feb 27 '14 at 15:59
  • $\begingroup$ yes. That would be correct $\endgroup$ – Vader Feb 27 '14 at 16:17
  • $\begingroup$ there are no drivers for macs $\endgroup$ – Codey Feb 27 '14 at 16:24
  • $\begingroup$ not sure that is true. There are plenty of mac users that use their GPU for cycles. I cannot say much more because I use windows. $\endgroup$ – Vader Feb 27 '14 at 16:29

I found a CUDA driver for Mac's on this site of NVIDIA

This solved the problem.

  • $\begingroup$ well did this solve the problem? $\endgroup$ – Vader Feb 27 '14 at 17:01
  • $\begingroup$ Oh sorry, I forgot to add it. Yes it did $\endgroup$ – Codey Feb 27 '14 at 20:13

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