5MHZ IS VALID
128.0 K VRAM, up to  524280  pixels.
Pixel Clock (Mhz) > 25.175
Signal Clock (Mhz) > 5
Horizontal Resolution > 640
Vertical Resolution > 480
Horzontal Front Porch:  6
Horzontal Sync:         8
Horzontal Back Porch:   5

Vertical Front Porch:  10
Vertical Sync:         4
Vertical Back Porch:   18

Expected exact frequency:  59.15 Hz
Image pixel count:  307200  of maximum  524280
Words per line:  160

8MHZ IS VALID
80.0 K VRAM, up to  327680  pixels.
Pixel Clock (Mhz) > 25.175
Signal Clock (Mhz) > 8
Horizontal Resolution > 640
Vertical Resolution > 480
Horzontal Front Porch:  11
Horzontal Sync:         13
Horzontal Back Porch:   7

Vertical Front Porch:  10
Vertical Sync:         4
Vertical Back Porch:   18

Expected exact frequency:  58.88 Hz
Image pixel count:  307200  of maximum  327680
Words per line:  160

800X600
128.0 K VRAM, up to  524288  pixels.
Pixel Clock (Mhz) > 40
Signal Clock (Mhz) > 8
Horizontal Resolution > 800
Vertical Resolution > 600
Horzontal Front Porch:  8
Horzontal Sync:         13
Horzontal Back Porch:   7

Vertical Front Porch:  10
Vertical Sync:         4
Vertical Back Porch:   18

Expected exact frequency:  58.6 Hz
Image pixel count:  480000  of maximum  524288
Words per line:  200