With OS X Mountain Lion, AirPlay Mirroring is finally coming to the Mac, allowing some Macs to stream audio and video directly to their Apple TV.
‘Some’ is the operative word here. Much to the disappointment of the vast majority of Mac owners who will be installing Mountain Lion on their machines in a couple weeks time, AirPlay Mirroring will only work if you have an iMac, MacBook Air or Mac Mini from mid-2011, or a MacBook Pro from early 2011.
There’s been a lot of conspiracy theories floated about this requirement. Some have argued that it’s forced obsolescence on Apple’s part, trying to force older Mac owners to upgrade their machines. Others have suggested that the reason Apple requires a Mac from 2011 or later is because of special DRM technology in Intel’s chips that didn’t debut until last year.
The truth of the matter, however, is far less sensational. The reason you need a 2011 Mac to make use of AirPlay Mirroring in OS X Mountain Lion is because the graphics in older Macs just don’t cut the mustard.