I already have a buyer for my dual core. 380€ for a 2 year old mini is reasonable. I bought the last quadcore in the apple store i went to and all other stores are sold out. folks are running for the 2012 quadcores now. what apps would actually benefit from the iris graphics?
If you already have a buyer for your dual core Mini and you don't need it then go ahead an sell it. It makes your decision easier. The Iris graphics will just be a notch faster than HD4000 but the i7 quad core speeds up processing as well (including single threaded applications... due to its greater L3 cache... 6MB vs. 3MB)... Therefore... in my opinion for most single and dual threaded applications it's sort of a wash in terms of i5 with Iris vs. i7 quad core with HD4000. With applications that can utilize multiple cores the quad i7 should have a greater performance advantage.
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