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Comment by kogir | Hacker News Reader

Can you cite a source for that? Experience suggests that is not the case.

http://www.apple.com/osx/specs/ lists the following macs as supporing AirPlay

  * iMac (Mid 2011 or newer)
  * Mac mini (Mid 2011 or newer)
  * MacBook Air (Mid 2011 or newer)
  * MacBook Pro (Early 2011 or newer)

I remember reading that AirPlay mirroring uses the video encoding capabilities of SandyBridge CPUs, but I can't find a source for that now. Anecdotally, http://airparrot.com really taxes my 2010 MacBook's CPU.

Strange, because it's working great on my 2008 unibody Macbook Pro with Core 2 Duo.

Searching "airplay mirroring mountain sandy bridge" suggests otherwise.

http://www.google.com/search?q=airplay+mirroring+mountain+sa...

http://www.mindofthegeek.com/2012/07/05/airplay-mirroring-in...

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