Horizontal Frequency; Vertical Frequency - Samsung SyncMaster 225MW User Manual

IBM, 640 x 350
IBM, 640 x 480
IBM, 720 x 400
MAC, 640 x 480
MAC, 832 x 624
MAC,1152 x 870
VESA, 640 x 480
VESA, 640 x 480
VESA, 800 x 600
VESA, 800 x 600
VESA, 800 x 600
VESA, 800 x 600
VESA, 1024 x 768
VESA, 1024 x 768
VESA, 1024 x 768
VESA, 1152 x 864
VESA 1280 x 960
VESA, 1280 x 1024
VESA, 1280 x 1024
VESA, 1680 x 1050
(kHz) (Hz)
31.469 70.086
31.469 59.940
31.469 70.087
35.000 66.667
49.726 74.551
68.681 75.062
37.861 72.809
37.500 75.000
35.156 56.250
37.879 60.317
48.077 72.188
46.875 75.000
48.363 60.004
56.476 70.069
60.023 75.029
67.500 75.000
60.000 60.000
63.981 60.020
79.976 75.025
65.290 59.954

Horizontal Frequency

The time to scan one line connecting the right edge to the left edge of the
screen horizontally is called the Horizontal Cycle and the inverse number of
the Horizontal Cycle is called the Horizontal Frequency. Unit: kHz

Vertical Frequency

Like a fluorescent lamp, the screen has to repeat the same image many
times per second to display an image to the user. The frequency of this
repetition is called the Vertical Frequency or Refresh Rate. Unit: Hz
(MHz) (H/V)
25.175 +/-
25.175 -/-
28.322 -/+
30.240 -/-
57.284 -/-
100.000 -/-
31.500 -/-
31.500 -/-
36.000 +/+
40.000 +/+
50.000 +/+
49.500 +/+
65.000 -/-
75.000 -/-
78.750 +/+
108.00 +/+
108.00 +/+
108.00 +/+
135.00 +/+
-/+
146.250