Its the classic trade-off.
Code flexibility/complexity/correctness vs execution speed.
Windows has a highly optimised, gaming-dedicated graphics pipeline - and the drivers have settings for rendering quality vs speed that both the user and software can easily tweak for performance.
OS X has a general purpose OpenGL pipeline, that hasn't focused on gaming performance.
Has anyone managed to do any quality comparisons? It would not surprise me (though I'm not saying it is a sure thing) if the graphical quality on the OS X drivers is slightly better, but slower.
Code flexibility/complexity/correctness vs execution speed.
Windows has a highly optimised, gaming-dedicated graphics pipeline - and the drivers have settings for rendering quality vs speed that both the user and software can easily tweak for performance.
OS X has a general purpose OpenGL pipeline, that hasn't focused on gaming performance.
Has anyone managed to do any quality comparisons? It would not surprise me (though I'm not saying it is a sure thing) if the graphical quality on the OS X drivers is slightly better, but slower.