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Power Macintosh 6500

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The 6500 replaces the Power Macintosh 6400 and is the last model of the "6000" series Macintosh computers. The 6500 was offered in speeds between 225-300MHz using the PowerPC 603e processor.

General Information

Video

Notes

QuickDraw 3D Acceleration and Video Memory

The logic board provides 2 MB of video memory for support of display modes up to 1152 by 870 at 16 bits of resolution. The largest supported display size is useful for standard 2D applications. For 3D applications, the 2 MB of video memory space is used differently, which restricts the useful display size and supported bit depth. For example, QuickDraw 3D utilizes double buffering if the hardware supports it. Double buffering immediately reduces the available video memory for application use. In addition, 3D applications that use a Z buffer for hidden texture removal have even less space available for caching textures to increase graphics rendering speed. To get the most performance out of 3D applications in the 2 MB of video memory, the display mode size should be reduced. A 512-by-384 display mode is provided specifically for increasing the available memory space for texture caching to improve 3D graphics rendering speed.

See Also