1366 x 768 17" to 19" --> 1440 x 900 19" to 21" --> 1600 x 1050 22" to 25 --> 1920 x 1080 > 27 --> 2560×1600 The other major aspect to be checked while deciding on the monitor is the Refresh rate. A refresh rate of 75Hz is good upto 1440*900, Cheap display has 60Hz.Also 120Hz refresh rate gives 3-D projection. Source of Info - Inhouse IT Manager." /> 1366 x 768 17" to 19" --> 1440 x 900 19" to 21" --> 1600 x 1050 22" to 25 --> 1920 x 1080 > 27 --> 2560×1600 The other major aspect to be checked while deciding on the monitor is the Refresh rate. A refresh rate of 75Hz is good upto 1440*900, Cheap display has 60Hz.Also 120Hz refresh rate gives 3-D projection. Source of Info - Inhouse IT Manager.">