Maximum PC: Asus last month announced its Zenbook Pro UX501, a sexy looking laptop that many are comparing to the MacBook Pro. Of course, the Zenbook Pro UX501 runs Windows 8.1, but that's not the only difference. Arguably the highlight of the laptop is its 4K Ultra HD (3,840x2,160) In-Plane Switching (IPS) display that boasts 100 percent sRGB color coverage. There's a bit more to drool over, and most important of all, Asus has begun shipping the Zenbook Pro UX501 in the U.S. today.
