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Old 02-23-04, 02:38 PM   #3
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Join Date: Jan 2004
Posts: 14

But I'm guessing that you can't run in a screen mode that demands the full bandwidth from your RAM, since nothing else would be able to access RAM. I am running at 333MHz, but in dual-channel mode (is that a simple doubling of bandwidth for these calculations?). Around the best video mode I can get is 32BPP 1600x1200@85Hz, which I calculate takes (I think this is right) 4*1600*1200*85 = 0.61 GB/s. So assuming a simple doubling for dual-channel my total bandwidth is 2*333*8 = 5.3 GB/s so my best video mode uses just a little under 1/8 of the total bandwidth. Could it be that maximum bandwidth for the nVidia driver is calculated simply as 1/8 of your total memory bandwidth?
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