First off, 1080p (1920 x 1080 pixels) is Full High-Definition (FHD), whereas Ultra-High Definition (UHD) (called “4K” for marketing purposes, even though it's more like 3.8K at 3840 x 2160 pixels) is double FHD. True 4K is 4096 x 2160 pixels, and is used for 4K Digital Cinema. 1080p at 60Hz (or frame…