Graphic card settings? -1 reply

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ptownlax503

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9th May 2004

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#1 13 years ago

I was wondering if anyone knows out there what refresh rate is the best to run at? 60hz or 85hz or anything in between? I've used them both and haven't really noticed much of a difference. And also any one know what negative lod bias means? I have an option on the nvidia 6800gt to clamp or allow it? any idea which is best?




Rod Menass

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29th March 2005

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#2 13 years ago

Well, I run everything at 60hz (can't be bothered to change it, really; also, anything higher and I tend to get headaches and I notice the image flickering a lot). But I've read that a lot of people experience headaches or discomfort at refresh rates around 60hz on a decent 17" monitor. Try setting the refresh rate to anything that makes you comfortable. Set it to 60, play for a while, then 72hz, then 85, etc. As for negative LOD Bias... I found this:

Added new Performance and Quality option-Negative LOD bias This control lets the user manually set negative LOD bias to "clamp" for applications that automatically enable anisotropic filtering. Applications sometimes use negative LOD bias to sharpen texture filtering. This sharpens the stationary image but introduces aliasing when the scene is in motion. Because anisotropic filtering provides texture sharpening without unwanted aliasing, it is desirable to clamp LOD bias when anisotropic filtering is enabled. When the user enables anisotropic filtering through the control panel, the control is automatically set to "Clamp".



Agent_0range

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3rd February 2005

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#3 13 years ago

Yeah refresh rate is whatever you are comfortable with and whatever your monitor is comfortable with. Personally I can't run it at 60Hz because everything seems to be very bright and eventually gives me a headache, so I run everything at 85Hz which seems to be lower in brighness. I doubt it has any performance difference on a game unless your monitor is a turd.




apocalypse_kid

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#4 13 years ago
TorpovWell, I run everything at 60hz (can't be bothered to change it, really; also, anything higher and I tend to get headaches and I notice the image flickering a lot). But I've read that a lot of people experience headaches or discomfort at refresh rates around 60hz on a decent 17" monitor. Try setting the refresh rate to anything that makes you comfortable. Set it to 60, play for a while, then 72hz, then 85, etc. As for negative LOD Bias... I found this:

60Hz is almost certainly going to give you headaches, sore eyes etc with extended use. At 60Hz (unless you are running an LCD),the flickering will be almost unbearable for some ppl. I notice it immediately I sit in front of a monitor running at 60Hz. The correct thing is to set the refresh rate as high as your monitor can handle at a given resolution. For LCD's (which don't really have a refresh rate like CRT's), set the monitor at the refresh rate recommended in the documentation.

AK

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UNDIESRULES

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24th November 2003

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#5 13 years ago

I have to have mine on 75 or its unbearable for me.




[SYN] hydraSlav

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2nd October 2003

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#6 13 years ago
TorpovWell, I run everything at 60hz (can't be bothered to change it, really; also, anything higher and I tend to get headaches and I notice the image flickering a lot). But I've read that a lot of people experience headaches or discomfort at refresh rates around 60hz on a decent 17" monitor. Try setting the refresh rate to anything that makes you comfortable. Set it to 60, play for a while, then 72hz, then 85, etc. As for negative LOD Bias... I found this:

You got it the other way round. Anything below 60 or even 60 is what gives headaches. The higher the refresh rate, the less strain on your eyes. With 60, the display flickers way to much, you can even see it with the naked eye. Even 72 makes a much noticeble difference




psyichic

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#7 13 years ago

I can run at 75 pretty well with no trouble but then again I use an LCD :D




apocalypse_kid

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#8 13 years ago

As I mentioned, LCD's don't have refresh rates. In you CRT you have a scanning electron gun that sweeps the entire screen usually between 60 and 120 times a second, thus 60hz or 85hz etc. Between scans the luminescent dots on the screen start to dim, thus the scans to excite them have to be quick enough to fool the eye into thinking the display is continuous, therefore the visible flicker at 60hz and below.

With an LCD the pixels, not being electroluminscent but powered by transistors that provide cotinuous power, don't dim but stay alight, only changing color when the signal is sent to change color. There is no scan sweeping the screen so there is no visible flicker at 60hz. However because the Vid cards deliver data in a manner that suits CRT's the electronics in your monitor are designed to accept the video data from the card at a particular frequency for decoding, each manufacturer has a ideal Hz setting at which the picture will look best, mine for instance is 72, some are 60 and other 75 or 80 etc. So check your documentation psyichic to see what is best for yours, you may get a slightly sharper picture with different settings.

AK

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ptownlax503

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#9 13 years ago

sounds like negative lod bias should stay clamped from my understanding. and refresh rate is preference. thanks for the input guys. Much appreciated! :cya: