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Subject: yup
Name: ludicrous
Date: 3/9/2002 11:35:44 PM (GMT-7)
IP Address:
In Reply to: Re: BTA? posted by booman2

on a graphics card running in 2D, all other things being equal -- same memory bus width, same memory type -- more memory makes no difference. The extra just sits there, unused.

Additional graphics memory only kicks in when 3D
renders are being performed, since you may have two or even three copies of the screen image being queued, as well as multiple, scaled copies of the current textures in use ("mipmaps").

For 2D, you simply have one copy of the current screen image. The formula, which I used in my earlier post, is:

(Resolution width) x (Resolution Depth) x (color depth) = (mem req'd, in bits)

(mem bits required) / (8bits/byte) / (1024 B/kB) / (1024 kB/MB) = (mem req'd, in MB)

Of course, multiply that by two if dual monitors are being used.

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