ATI Technologies Nexus GA User Manual page 35

3D Mode Table
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 at 3/4 the size of full screen. A value of 0.40 means
that the largest 3D window will be just less than 1/2 the size of
full screen.
In the following table, 3D windows are considered to use a back
buffer and z-buffer and no texture compression. You could
increase the number of full screen 3D windows possible by
using texture compression.
3D acceleration is not supported when your color depth is 256
colors. In this color depth, there are too few colors to display
NOTE
complex 3D textures.
Resolution
512 x 384
640 x 480
800 x 600
832 x 624
1024 x 768
1152 x 870
1280 x 1024
1600 x 1200
1920 x 1080
Full screen 3D
windows possible
Colors
Thousands
Millions
Thousands
Millions
Thousands
Millions
Thousands
Millions
Thousands
Millions
Thousands
Millions
Thousands
Millions
Thousands
Millions
Thousands
Millions
8MB
10.00
6.25
6.25
3.75
3.75
2.25
3.50
2.00
2.00
1.00
1.50
0.75
1.00
0.25
0.50
0.00
0.25
0.00
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