I'm using 1920x1080x24bit with at least two screens all the time (enhanced Ambient and non-enhanced OWB), and then occasionally third screen for ShowGirls or other bigger apps (I keep them non-enhanced too), and 64MB on my Mac mini is just about enough. I get some slowdowns indicating that there isn't enough gfx memory sometimes, but just occasionally. So, I'd say 128MB would be quite nice for the most situations :)


[ Edited by jPV 03.12.2015 - 15:19 ]