If you look at software performance(ie recoding, databases, processing etc) linux LEADS on opensource apps.
In 3D it is slowed down by:
a) a company that handles it as second-class system, never opens source and hence hardware+linux software solutions always fall behind winblows with performance to have no choice to go up or on-par(no one can improve it beside them, and they simply dont care).
b) a company that does opensource, but .. ugh,.. slooow. It still carries its closed source driver, that is many times worse than (a), unless workstation tasks. A company that cannot deside? Well at least it does(together with some community effort) opensource and its 3D is usable.
c) a company that does only opensource in linux. But its opensource drivers performance is messed to be 5-6 times slower than on closed source winblows. Wtf, no? And it has no hardware capable of something average 3D currently.
Great 3D situation, no? The choice is yours. I went (b) and abadoned (a).