Apple 4400, 7300 manual Dram accelerator mode, MHz Depth bpp 640 x, 800 x

DRAM accelerator mode

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.

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Configuring Video Software 155