BSDNowTV Episode 122: The BSD Black Box Guest:

ret Manager of Platform Architecture at Sony

Interview with Alex Rosenberg @alexr about the engeneering of an OS for the Playstation 3 & 4

and the usage of free software tools from FreeBSD & LLVM(BSD) vs GCC(Linux) & Clang on the CellChip & x86 CPU

He also speaks of GPU driver implementation on Windows vs Playstation 4

The BSD Black Box | BSD Now 122
https://www.youtube.com/watch?v=w4jrGT7OJYU&t=24m36s