I've searched high and low on the forums so please don't throw rocks at me. I'd like to purchase a 13" cMBP as I just prefer the power and lack of scroll lag over the rMPB that I encounter frequently on the websites that I use. Also, some of the same sites are still not retina optimized thus the text is quite blurry. So once and for all, does the i7 on the 13" cMBP run hotter than the i5 and do the fans kick on more? I would have about 8 tabs open and streaming data at the same time. Thanks all.