I can't decide which processor to get, RAM will be 16GB in any case. My uses are RAW photo editing and occasional full hd video editing. And the basic surffing, word processing, movies and music. Will I have any real world benefit from faster processor? Also I've only seen smooth safari scrolling videos from 2.6 machines. Is there really a difference in scroll lag on 2.3 vs 2.6 rMBPs?