I’m running a Mac Pro 1.1 (2006) (see pic below for other specs)
I’m getting 18-22 fps in Black Citadel with low settings at 1680 × 1050.
On Win 7 64 on medium settings and same resolution I get 25-35 fps. It never gets lower than 25 fps. It even gets to 40 fps often when running in Windows.
When playing in zones other than the big cities, it’s at 25 – 32 fps mainly because of the draw distance (on OS X with low settings). When not seeing far I get 35-45 fps. I can definitely see the slowdown when the draw distance is high.
I consider it playable but if I had a choice I would definitely play it on Windows. For crafting and basic stuff I would not bother booting in Windows to play. Cutscenes run fine on OS X though. Windows is always well over the 35 fps and runs very smoothly on medium settings. I don’t really notice any slowdown.
I also have an issue where the mouse scroll wheel does not zoom but moves the map around on OS X. I have a logitech performance MX. It works fine in Windows but not in OS X.
