Ask Jacob
Does running a second monitor on a 27″ iMac eat CPU cycles?
Wednesday, July 7, 2010 / Displays, iMac
Hi Jacob,
Does running a second monitor on the new 27 inch iMacs eat any CPU cycles or is it all on the graphics card?
Thanks,
- JP
It is my understanding that the only appreciable impact of running a second display on a 27″ iMac is with the video cards GPU and VRAM. The VRAM will be split between the internal display and the external display.
The GPU will have to work almost twice as fast to redraw the screen. Your processor will be mostly unaffected except for the added overhead of managing that much more desktop space.
- Jacob
