Hi, I've been using my late-2013 15" MacBook Pro a lot more lately, and am thinking of getting a separate monitor for it. I was hoping you experts could share some of your knowledge and answer a few questions. Here goes: If you drive modern monitors at non-native resolutions, do they get blurry? My dad's old non-retina 27" iMac gets kind of fuzzy at lower resolutions. The reason I ask is because I was thinking of getting a 4K display, but my MacBook can only drive 2560x1600 at 60Hz. My PC at work has two 1080p displays, and maybe I'm spoiled by my retina display, but they look so blocky! You can see individual pixels and it's a little distracting. Would a 27" or 28" display at 2560x1600 or 2560x1440 look smooth like my 27" retina iMac? Looks like my iMac runs at 2560x1440 (Apple's default), even though it can go up to 5120x2880. At 2560x1440, text is amazingly sharp and clear. Would a 2560x1440 display be similarly (or acceptably) sharp? For software development and web browsing, is driving the display at 30Hz or 24Hz distracting (versus 60Hz)? Thanks! My goal with a new display is more real estate but also that smooth rendering that my 27" iMac has. There are some 4K displays out there for around $400, seems like a decent time to buy one. P.S. Some of my terminology may be wrong; I called it '4K' but I guess there's also Ultra HD which is similar.