As of January 2015, the best all-in-one computer is the Apple iMac with Retina 5K Display, according to PCMag.com. Other top ranked all-in-ones include the Lenovo C260 Touch, Dell XPS 18, Gateway ZX4270-UB31, and Acer Aspire C.
The Apple iMac with Retina 5K Display retails at about $2,499. It has a 27-inch LED screen display. It contains a 3.3 gigahertz Intel Core i5-4590 processor, eight gigabytes of RAM, and one terabyte of internal storage capacity. It has an editor ranking of four out of five on PCMag.com. It is especially well rated for its multimedia performance. The primary negative aspect of the Apple iMac is its limited upgrade capacity.