Dram accelerator mode (winboost) – Apple PC Compatibility Card User Manual
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Appendix D
DRAM accelerator mode (WINBOOST)
The following table lists color depths and other features supported at various
monitor resolutions in graphics mode. The settings listed in this table can be
applied to multiscan monitors only.
Refresh
Horizontal
Pixel clock
Maximum color
Resolution
rate (Hz)
frequency (kHz) (MHz)
depth (bpp)*
640 x 480
60
31.4
25.2
24, 32
†
72
37.7
31.2
24, 32
75
37.5
31.5
24, 32
90
47.9
39.9
16, 32
100
52.9
44.9
16, 16
120
63.7
55.0
—, 16
800 x 600
48 interlaced
33.8
36.0
16, 24
56
35.1
36.0
16, 24
60
37.8
40.0
16, 24
70
44.5
44.9
16, 32
72
48.0
50.0
16, 16
75
46.8
49.5
16, 16
90
57.0
56.6
8, 8
100
62.5
67.5
8, 8
120
76
81
—, 8
*In the “Maximum color depth” column, the first number is the bits per pixel supported at 1 MB DRAM, the second
number is the bits per pixel supported at 2 MB DRAM. A dash (—) means the color depth is not supported in that
DRAM configuration.
†
32 is 24 bpp color data processed using a 32 bpp data format.
continued
.