The NVIDIA Graphics team has released support for the Testla K80 GPU on FreeBSD.
Release highlights since 346.87:

351px-Nvidia_logo
  • Added support for the following GPU:
    • Tesla K80
  • Fixed a bug that caused the X server to crash if an OpenGL application tried to allocate a drawable when GPU-accessible memory is exhausted.

[README | Linux x86 | Linux x86_64 | Linux ARM | Solaris | FreeBSD x86 | FreeBSD x86_64]

Aaron Plattner
NVIDIA Linux Graphics

Original: https://devtalk.nvidia.com/default/topic/873271/unix-graphics-announcements-and-news/linux-solaris-and-freebsd-driver-346-96/