I would like to know if is true that the i3 version of Sp3 is not able to support via mini display port the 2560x1600 resolution and/or the 4k 3840x2160. Then I would like a confim that the i5 is able to support the same resolutions of i7 as above. Finally another technical help. I tested my Sp3 i7 with 2560x1600 30 inch via dual-d dvi adapter and it's perfect. I'm going now to test the Sp3 i7 with a 4K led tv, may be in 2/3 weeks. My doubt is this: if I use the same content I'm using now in the 2560x1600 monitor, for same content I mean let's say 1 internet explorer page, one software java for finance, and Skype, would I have the Sp3 however using for CPU do the fact I have this higher resolution display attached and it suffer more, or it will happen only based on the fact you increase the number of softwares, pages of IE or other staff you add more because of the more space you have in the video? So in few words I want to know if with 4K monitor I will have more resources used, in particular the CPU just because the device suffer with this monitor that has higher resolution, for some how. I hope some expert can understand what I mean and resolve my doubt. thanks.