I want a bigger screen to work with at home and now I see Dell is coming with a 24" and 28" 4K monitor, and the 28" display is interesting for me. Do you think my RMBP 2.0Ghz/16GB RAM/Iris Pro is cable enough to work with a 4K monitor without any lag? I am using it for graphic design with Photoshop, Illustrator and InDesign.