I am about to refresh some of the computers in my lab and was wondering if anybody had any thoughts on the current line of Apple computers with regard to stimulus presentation from PsychoPy. Specifically …
I understand the triple-buffering in the more recent OSes has created a delay in visual stimulus presentation. How reliable is this delay? That is, is it always a 1 frame delay that could be accounted for by setting onset to be desired onset - 1 frame rather than desire onset?
Does anybody have experience or a strong opinion as to whether the Mac Pro, the iMac, or the MacMini is best for stimulus presentation? Obviously, the Mac Pro is the most powerful (and expensive!), but it seems like overkill. However, my concern with the iMac is whether the integrated display plays nicely with a mirrored external display. I worry that the timing of the second external display would be unreliable. Is that a valid concern, or would the external display have the same priority as the integrated display? Finally, the Mini is certainly most cost-effective, but it does not have an independent GPU and therefore probably sub-optimal.
Any and all thoughts will be greatly appreciated.
Happy New Year!