Is the quad core 2 gig ram note 2 going to be that much faster than our razr maxx hd running the dual core s4. Not sure but here is a video that makes me think different. The orator compares the gs3 running jb vs one running ics. But pay close attention the gs3 running ics has an AT&T marking and last I checked at&t's version was a dual core s4 and as you can see its seems to be running just as fast as the international quad core exynos for everyday processes.
I am sure the exynos probably performs better with gaming though.