The current system requirements for Iray Photoreal:
The plugin libiray needs to be loaded in neuray before this render mode is available. See the mi::neuraylib::IPlugin_configuration interface for methods to load plugins.
Available on Windows x86 64 bit, Linux 64 bit, and Mac OS X 64 bit.
GPUs of CUDA compute capability 2.0 and higher are supported.
Driver requirements: The driver needs to support CUDA 6.0.