Non DDC (Display Data Channel) Analog Monitors
The mode table below represents the base list of modes made available by the RADEON Mac Edition driver. If you have a NON-DDC monitor, you will receive a list containing all the modes in the table, with an assortment of refresh rates up to the maximum listed. The refresh rates listed will be in the following order: 60, 75, 85, 90, 100, 120, 150, 200Hz. Any other refresh rates or resolutions are created by the operating system. Refresh rates are shown up to the card's maximum - not all presented modes will work for the connected monitor. The system will prompt you with a confirmation dialog when changing to any mode.
Non-DDC monitors include older displays as well as any display connected using BNC cables.
DDC Analog Monitors and LCDs.
When using a monitor that supports DDC, the mode list will be modified to exclude resolutions and refresh rates that fall outside the monitor's capabilities. Therefore, the maximum refresh rate presented may not be what is indicated in the list, but instead the closest rate from the following list (60, 75, 85, 90, 100, 120, 150, 200Hz). The operating system may create additional resolutions and refresh rates depending on the information it receives from the monitor. Additionally, if the monitor includes the necessary information, modes are also created at the monitor's highest refresh rate (for instance, 170Hz).
Digital Displays (DDC)
DVI displays (or ADC with DVI adapter) will vary in mode list depending on their built-in information. Only modes specified through DDC will be available. The RADEON card's maximum digital resolution is 1920x1200 (using a reduced blanking interval compatible with Apple's Cinema HD ADC Display, using an Apple or third-party powered adapter). Digital displays are generally 60Hz, though some displays such as IBM's T221 high-end LCD will allow a lower refresh rate for increased resolutions (example: 3840x2400@15Hz).
Minimum Analog Mode Table for 2D and 3D modes.
Resolution |
Card's MAXIMUM Vertical Refresh Rate (Hz) |
640 |
x |
480 |
@ |
200 Hz |
|
720 |
x |
480 |
@ |
200 Hz |
|
800 |
x |
600 |
@ |
200 Hz |
|
832 |
x |
624 |
@ |
75 Hz |
|
1024 |
x |
768 |
@ |
200 Hz |
|
1152 |
x |
864 |
@ |
200 Hz |
|
1152 |
x |
870 |
@ |
75 Hz |
|
1280 |
x |
960 |
@ |
200 Hz |
|
1280 |
x |
1024 |
@ |
150 Hz |
|
1600 |
x |
900 |
@ |
150 Hz |
|
1600 |
x |
1024 |
@ |
150 Hz |
|
1600 |
x |
1200 |
@ |
120 Hz |
|
1792 |
x |
1344 |
@ |
75 Hz |
|
1856 |
x |
1392 |
@ |
75 Hz |
|
1920 |
x |
1080 |
@ |
120 Hz |
|
1920 |
x |
1200 |
@ |
100 Hz |
|
1920 |
x |
1440 |
@ |
90 Hz |
|
2048 |
x |
1152 |
@ |
100 Hz |
|
2048 |
x |
1280 |
@ |
100 Hz |
|
2048 |
x |
1536 |
@ |
85 Hz |
|
|
Note, the minimum refresh rate for each resolution above is 60Hz. (OS may introduce other refresh rates, including 56Hz)
Another way to express the list, but in a more concise manner is as follows:
Maximum Resolution |
Vertical Refresh Rate (Hz) |
1280 |
x |
960 |
@ |
200 Hz |
|
1600 |
x |
1024 |
@ |
150 Hz |
|
1920 |
x |
1080 |
@ |
120 Hz |
|
2048 |
x |
1280 |
@ |
100 Hz |
|
1920 |
x |
1440 |
@ |
90 Hz |
|
2048 |
x |
1536 |
@ |
85 Hz |
|
|
|