Vsync is not so much an issue anymore since Nolan corrected most of the problem, the big issue is Anti-Aliasing still causes hefty slowdowns even on powerful graphics cards where it never caused these slowdowns in the past.
This has been ongoing since around revisions 3545 or whenever the major XFB/EFB work occurred when trying to fix the pull star issue in Mario Galaxy.
This has been ongoing since around revisions 3545 or whenever the major XFB/EFB work occurred when trying to fix the pull star issue in Mario Galaxy.