Okay just wanna clear this up. There is a new rumour today stating that we could see Retina Display iMacs this refresh. Although I doubt it, if we were to say hypothetically speaking that these 2012 iMacs indeed did have these displays, would this make the computer actually slower than the 2011 version in terms of CPU and GPU performance? I use Logic on my Macbook Pro at the moment, and while I think this type of display would be awesome, I would rather it not affect the CPU performance. Making music does not need a beautiful screen does it? I don't believe the rumour anyway. I mean, do these HiDpi screens even exist at the moment?