Hi guys, I'm trying to find out if it is worth it to upgrade the i5 to i7 on the new iMac. So what CPU is inside? 3470 vs 3770 or am I wrong? I found this site where one can compare the performance: http://www.cpubenchmark.net/cpu_lookup.php?cpu=Intel+Core+i5-3470+@+3.20GHz&id=822 I will be using the machine for work. Adobe Photoshop, Illustrator, InDesign and Final Cut Pro.