Hi from Europe , Which of these four IMac 27' 5K configurations you would you choose?. My budget can not exceed of 2600€ (2900$). The question is.... more CPU or more GPU?. My use is editing photo in raw format and video 4K with common programs (adobe premier, lightroom, photoshop, final cut....). The options are: - I7 4 GHz - AMD 395 2GB - I5 3,3 GHz - AMD 395X 4GB - I7 4 GHz - AMD 390 2GB - I5 3,2 GHz - AMD 390 2GB Nice w.e.!!!!!