With a higher-resolution display, thin chassis, and up-to-date components, the Apple MacBook Pro 15-inch with Retina Display is the new king of high-end desktop replacement laptops. It is the laptop you want if you care about performance, thinness, and the screen."
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips