On Apr 23, 2004, at 05:48 pm, Ken wrote:
My Reply follows quote. On 23/04/2004 09:04 [EMAIL PROTECTED] said:
To make a long story short, on my Mac I can have thousands of colors if-------------
I use a 60Hz refresh rate, but only 256 colors if I use a 72Hz refresh
rate. Why is this, and can I make any modifications that would allow me
to use both thousands of colors at the higher refresh rate?
Greg
It would seem that with the amount of video RAM on your Mac, coupled with
the ability of the video system to "redraw" the screen are evident
limitations. It would take more horsepower to redraw a given screen
faster. If the screen has greater "depth" (thousands compared to 256) it
will take even more "horsepower."
The limiting factor as far as Macs go is that you need more VRAM space to page the screens to if you run at higher refresh rates. Think about the refresh rate as 'screens per second' and in a given time frame you have to store more pixel information in the VRAM. Thus larger pages (as Thousands of colours is) take up more space per second. Therefore at one instance it can store less thousands pages than 256 colour ones.
Depending on your machine, you might be able to add VRAM chips (Color Classic?). Don't know which compacts have adequate expansion capabilities to add in a faster video processor, but that might be another option.
Ken
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