The screen resolution of 3072x1920 (224.6ppi) is triple 1024x640. Apple states that it also scales to • 1920x1200 (3:5) • 1680x1050 (48:25) • 1280x

The screen resolution of 3072x1920 (224.6ppi) is triple 1024x640. Apple states that it also scales to • 1920x1200 (3:5) • 1680x1050 (48:25) • 1280x800 (12:5) which obviously are all fractions. With the small pixel size (0.1122mm) it probably doesn't matter that much. The 16" display has a 16:10 aspect ratio.