Hi! I' m looking for a monitor to couple with a mpb 15 retina middle 2014. My primary need is text readability and sharpness. I found this one: Dell U2715H which is 1440p monitor, and i read around positive feedbacks to use it with a mac. Do you think 1440p technology will work better for me than a 4k monitor like an Asus pb287q ? Which monitor would you suggest me? Budget: about 500€ Thanks in advance for any help!