Hello guys, I'm from Germany, so excuse slight failures in grammar or spelling, please. I am attending university in about 2 months to study bio technology and because i only own a 4 year old, quite heavily built laptop, i was looking for something better and decided on the surface. I will mainly use it for uni purposes like taking notes with the pen, Office, doing homework on it and maybe some calculating or very simple graphic programs i may or may not have to use during my studies, so i won't do the likes of video/photo editing on it. Apart from university usage, i'm goint to need it for surfing the web, watching YouTube videos/films on it, just the regular stuff. I won't be playing any games other than those that can also run on a mobile phone. So at this point i'm debating wether to take the i3 or i5 model. Storage isn't really a problem, i already own a 128g microsd card and an external 1tb harddrive. My questions now are: 1. Is the i3 enough to watch HD movies/videos on it? 2. Can i run three or four programs like Chrome, Skype, Office, OneNote on it without lag? 3. Will the graphics of the i3 struggle with the rather big resolution of the SP3? 4. I read that the i5/i7 models have struggles with cooling, so they clock down below/even level with the i3 until the SP3 cooled down, is that true? If the i3 is totally fine for my needs i'd rather keep the extra 180 euros for other things. Thanks for your help in advance.