Re: VRAM in a 7500

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#25

From: William Raphael Hix
Date: Fri, 19 Jul 1996 00:00

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George Zamroz (zamroz.george.gb@bhp.com.au) wrote:
: And I should be able to get millions of colours at 1280 x 1024, but it
: only allows thousands. :-(
: 
: It is recognising as least 3MB of VRAM (1024x768x24-bit colour = 2.25MB).
: I will have to check both simms and make sure they are seated properly.
: Do you have as much trouble as I do getting the cover off? It is easy
: to get at everything once the cover has been removed, but hard to get it
: off in the first place.


Millions of colors is 32 bit color, 8 bits each of RGB and an 8 bit alpha 
channel.  So millions of colors at 1024x768 requires 3.0 MB, at 1152x870
requires 3.8 MB and at 1280x1024 requires 5.0 MB.  All of this is discussed 
in the Mac Hardware FAQ...

						Raph

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From: raph@porter.as.utexas.edu (William Raphael Hix)
Subject: Re: VRAM in a 7500
Date: 1996/07/19
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