18.0″, WQXGA (2560 x 1600), 240 Hz, IPS - specs sheet

Name 18.0″, WQXGA (2560 x 1600), 240 Hz, IPS
Diagonal 18.0"
Pixel density 167.72 ppi
Panel Type IPS
Resolution 2560 x 1600)
Becomes “Retina” from 21 inches (52 cm)