The 3D mode table measures the number of full screen 3D windows that are possible to display at a given resolution. For example, a value of 2.75 means that there is enough memory left over in the current mode to run 2 full screen 3D windows and another 3/4 the size of a full screen window. A value of .4 means that the largest 3D window possible is just less than 1/2 the size of a full screen.
3D acceleration is not supported in 256 color mode because there are not enough colors available to do 3D.
| Full Size Windows Possible |
| Resolution | Colors | 2M | 4M |
| 512x384 | 1000s | 2.00 | 4.50 |
| 512x384 | Millions | 1.00 | 2.75 |
| 640x480 | 1000s | 1.00 | 2.75 |
| 640x480 | Millions | 0.40 | 1.50 |
| 800x600 | 1000s | 0.50 | 1.50 |
| 800x600 | Millions | 0.00 | 0.75 |
| 832x624 | 1000s | 0.45 | 1.50 |
| 832x624 | Millions | 0.00 | 0.60 |
| 1024x768 | 1000s | 0.00 | 1.75 |
| 1152x870 | 1000s | 0.00 | 0.50 |
Copyright 1997 ATI Technologies
Machines Affected: All