61
Resolution
Horizontal
Frequency
(kHz)
Vertical
Frequency
(Hz)
Clock frequency
(MHz)
Sync Polarity
(H/V)
MAC, 1152 x 870
68.681
75.062
100.000
-/-
VESA, 1280 x 800
49.702
59.810
83.500
-/+
VESA, 1280 x 960
60.000
60.000
108.000
+/+
VESA, 1280 x 1024
63.981
60.020
108.000
+/+
VESA, 1280 x 1024
79.976
75.025
135.000
+/+
VESA, 1440 x 900
55.935
59.887
106.500
-/+
VESA, 1600 x 1200
75.000
60.000
106.500
+/+
VESA, 1680 x 1050
65.290
59.954
146.250
-/+
VESA, 1920 x 1200
74.556
59.885
193.250
-/+
VESA, 2560 x 1440(RB)
88.787
59.951
241.500
+/-
Horizontal Frequency
The time required to scan a single line from the left to the right side of the screen is called
a horizontal cycle. The reciprocal number of a horizontal cycle is called horizontal frequency.
Horizontal frequency is measured in kHz.
Vertical Frequency
Repeating the same picture dozens of times per second allows you to view natural pictures.
The repeat frequency is called "vertical frequency" or "refresh rate" and is indicated in Hz.
Specifications
