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Article #2

Re: Interesting Results AGPX2

#2
From: Stan Poleshyouk
Date: Thu, 17 Dec 1998 00:00
37 lines
2571 bytes
I guess what AGPx2 must show itself only when video memory  is not enough
for storing textures in it. More, if card really can't hold all the textures
at once, then it doesn't really make sense if your card is AGPx2-compliant
or not - taking into consideration huge AGP bandwidth compared to small
video memory size. I am not really hardware pro, but at least let me guess
the following:

Say AGP is 32 bit and speed is 66 MHz - you get 264 Mbytes/sec in this case.
Let say your video use 12 Mb for texture stuff. That means AGP is capable to
fill the whole memory at least 22 times a second. Is that much? What kind of
the game should it be to trash the whole 12 MB of textures 22 times a
sec?!?! None really needs it for now! And AGPx2 in this case is like 44
times a sec full-memory-trashing ability.

I somebody's luck to have 1 fps gain of it    :)

Any comments are much appreciated...


Regards,
Stan Poleshyouk, stan@prosoft.ru



Martin Stephenson wrote in message
<913888147.28780.0.nnrp-01.9e9833b4@news.demon.co.uk>...
>What do you mean Q2 doesn't support AGP 2X ?
>
>The AGP multiplier is the speed at which textures are transferred through
>the AGP bus from the motherboard to the card.  How can a game not support
>this feature.  If the game demands texture swapping then the speed at which
>the textures are transferred must be afftected.
>
>What do you think AGP 2X does as I may be wrong ?
>
>
>
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From: "Stan Poleshyouk" <stan@prosoft.ru>
Subject: Re: Interesting Results AGPX2
Date: 1998/12/17
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