ok was routing about looking inside the freebsd nvidia source code and was interested to find the following

// ***** Apple variations
#if defined(macintosh) || defined(__APPLE__)
# define NV_MACINTOSH
# if defined(__MACH__)
# define NV_MACINTOSH_OSX
# else
# define NV_MACINTOSH_OS9
# endif
# if defined(__LP64__)
# define NV_MACINTOSH_64
# endif
#endif // defined(macintosh)


now this is just a section in the identifier for cpus and os's and appears to support onboard video according to docs.

Gonna dig some more see if i can find info for someone with some talent lol

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