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post #1151 of 1792
Quote:
Originally Posted by Greg121986 View Post
No, it will still go to the 1:2 ratio of Core:Shader.
When I attempt to set my G80 8800GTS to a frequency of 600/1550 (core/shaders) it will default to 594/1566. I can understand the 1566 in the light of what has been written on shader straps, but the 594 puzzles me as of now. This does however illustrate that there is no fixed ratio of core:shaders as you are suggesting. Instead I expect it to be more like a divider ratio that you also see in FSB/Memory frequencies, where the memory frequency will automatically adjust to a more favourable setting near your manual input, in relation to the divider complexity.
post #1152 of 1792
Quote:
Originally Posted by Greg121986 View Post
If you adjust them beyond the 1:2 ratio it will automatically push them back to 1:2. If you have it at a stable clock now, try adjusting the core up by a few clicks and you will watch it pop back down to the previous setting as you hit the OK button and minimize Rivatuner.

*EDIT* You can see here that Rivatuner shows clocks for GPU 1 that are not in the 1:2 ratio. 774:1559. However, in the Hardware Monitor, you can see how GPU 1 is actually running at a 1:2 ratio while maintaining the proper strapping. 783:1566. Also, the memory is shown as 1303, but it is really 1296 but I have removed that from Hardware Monitor.
i did as you asked and upped the core.. there was no change when i minimized rivatuner. right now... i'm looking at my core and shaders and it isn't running at 1:2 ratio. all i know is that my cards have never set themselves at a 1:2 ratio.
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post #1153 of 1792
Quote:
Originally Posted by Jbear View Post
When I attempt to set my G80 8800GTS to a frequency of 600/1550 (core/shaders) it will default to 594/1566. I can understand the 1566 in the light of what has been written on shader straps, but the 594 puzzles me as of now. This does however illustrate that there is no fixed ratio of core:shaders as you are suggesting. Instead I expect it to be more like a divider ratio that you also see in FSB/Memory frequencies, where the memory frequency will automatically adjust to a more favourable setting near your manual input, in relation to the divider complexity.
I have never witnessed it going to something other than 1:2 when you look at the exact clocks on Hardware Monitor.

Thinking about it further, the stock clocks on my GTX 260 are 590/1296 which is not a 1:2 ratio. So there we can see that it may not always be 1:2. However, as I said before, my experience and what I have seen from many other people says that maintaining a 1:2 ratio of Core/Shader provides the best folding experience.

*EDIT* I think we are comparing apples to grapples here. I just realized I am talking about the GT200 series, and you guys are on the G92 chips. There must be a difference in architecture for these chips that requires different core/shader settings.
Edited by Greg121986 - 2/25/09 at 9:53am
post #1154 of 1792
Quote:
Originally Posted by Greg121986 View Post
I have never witnessed it going to something other than 1:2 when you look at the exact clocks on Hardware Monitor.

Thinking about it further, the stock clocks on my GTX 260 are 590/1296 which is not a 1:2 ratio. So there we can see that it may not always be 1:2. However, as I said before, my experience and what I have seen from many other people says that maintaining a 1:2 ratio of Core/Shader provides the best folding experience.
i understand that concept but.. as i mentioned before.. there is no way my core clocks are going to hit 1000MHz if i try to keep it at a 1:2 ratio.
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post #1155 of 1792
And I digress. haha
post #1156 of 1792
the GTXes aren't locked in any similar fashion either. As a test i was running a few days ago, I boosted the shader while decreasing the core and memory by an equal amount... it doesn't lock the ratio on any of my cards, 8 9 or 200.
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post #1157 of 1792
But from my experience 1:2 ratio on the GTX 260 provides the most stable OC and best performance for folding.
post #1158 of 1792
wonder what would perform better for mine, a 1:2 as high as possible or taking the shader straight to 2000 without keeping the ratio. i'll have to play around a bit later.
Edited by planetarian - 2/25/09 at 11:25am
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post #1159 of 1792
Quote:
Originally Posted by Greg121986 View Post

*EDIT* I think we are comparing apples to grapples here.
Holy crap. I had to google that. I have never previously heard of grapples. I'm gona have to go find me some of those.
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post #1160 of 1792
Quote:
Originally Posted by redmist View Post
holy crap. I had to google that. I have never previously heard of grapples. I'm gona have to go find me some of those.
Haha
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