Hello, I have an unopened 2011 Mac Mini that I am considering exchanging for a newer 2012 model. It is a built to order Server machine with a 2.0GHz Quad-Core i7. The newer model appears to be very similar in specs, with the exception of the faster 2.6GHz processor and newer integrated graphics. Is it worthwhile upgrading the device? It is the same price (£10 cheaper). I will be using the machine primarily for Xcode and Photoshop, outputting at 1600p. Thanks!