Someone recently posted an analysis of Blender Cycles benchmarks, to determine what would be the best hardware to render with Cycles. But what he also compared was the differences between OS and… for me that was very astonishing (and somewhat scary):
I would expect some differences, but here we can see that when using CPU, renders on Windows7 are almost twice slower than renders on Linux and Max OSX… With the GPU, Windows is again slower.
It could be because Cycles is working in a special way, optimized for Linux or Unix, I actually don’t know as I’m not a programmer.
But does anyone know if that would be the case for most of the render engines, and especially Mental Ray?
If someone would just need to install Linux (or MacOS) on a render machine to get a 20%-50% render speed increase, that would be the cheapest and the most efficient upgrade ever
PS: please don’t turn this thread in an OS flame war