does raising the refresh rate..

[touser]

hi all i was wondering if raising the refresh rate from 60hrz to 75hrz would would have any effect on perfomance in 3d gaming as in frame rates are concerened? or in 3dmarks2k1?any help or comments are greatly apreciared.

[Monaco]

basically you are adjusting the monitor whwn you change refresh rates. 75 hz means your monitor redraws the screen 75 times a second. So if you vid card pumps out 150 FPS, half of them get lost before they get to your screen.

The higher the refresh, the better. It won't affect frame rates, it affects how many of those frames you can see on screen. It also prevents headaches- less then 60hz refresh and my head is pounding...

Crank it up; it will look better at 75hz.

[Pinky]

In addition to the prior post, if you have vsync enabled in your video card adapter's advanced properties, increasing the refresh rate will directly impact your framerates and 3d benchmarks. I think these settings are disabled by default, however.

[touser]

thank you for the reply's guys, one last question..what is vsync and what does it do? would you recommend keeping it on or off?

[Pinky]

keep vsync off. It synchronizes your framerates and the referesh rates to allieviate unneeded frames... but for benchmarking, unneeded frames are what it's all about.

[touser]

ok so also keep it off while i am playing games such as UT and anarchy online which is a huge memory hog,graphics torture..?i found this article on VSYNC on the net and from what i can tell is exactly what u said it syncronizes the frames with the monitor, but then in that case wouldnt it be better to have a higher refresh rate with it on so that it doesnt have to hold as many frames back and can display more? here is the article i found...

Why do you test with VSYNC on? Don't most gamers turn VSYNC off?
Actually, we test with both.

For a number of reasons, we lean toward VSYNC On, but we do use VSYNC Off to ensure that our test results aren't misleading.

In fact, testing with VSYNC On and VSYNC Off are both valid methods of testing. Care needs to be taken in interpreting the results of either, however.

VSYNC is a term used to describe how a graphics board renders and displays an image to the display. With VSYNC On, the graphics board draws one frame of a scene, and waits for the monitor to display it before starting the next frame.

With VSYNC Off, the board draws one frame, and then immediately starts on the next frame - whether the display is ready for it or not.

Except under unusual circumstances, benchmarking relative performance (that is, board x is 30 percent faster than board y) with VSYNC On can be misleading. However, testing with VSYNC On or Off yields consistent rankings (board x is number 1, board y is number) - provided that all boards are tested under the exact same conditions.

VSYNC ON testing will compress the relative performance difference between boards that are fast enough to max out the frame rate at the monitor's refresh rate. Example: Board A can render at 76 fps, but maxes out at 75 fps because of the monitor, while board B can render at 150 fps, but also maxes out at 75 fps. Both Boards A and B will appear to have the same performance.

The key to testing with VSYNC On is to load the boards so they don't max out at the refresh rate. As long as at least one frame of a test scene renders at less than the display refresh rate, the true rendering performance will be seen, and the boards can be ranked fastest to slowest.

Testing with VSYNC OFF can show how fast a board can render scenes, regardless of whether the scene is actually displayed. Most games are actually played with VSYNC ON, so that VSYNC OFF may give an unrealistic relative performance measurement.

[Thirus44]

How do you change the refresh rate anyways? May seem like a stupid question but I cant figure it out.:rolleyes:

[Pinky]

Originally posted by Thirus44
How do you change the refresh rate anyways? May seem like a stupid question but I cant figure it out.:rolleyes:

In your display properties (through control panel or right clicking your desktop), click the "settings" tab.

Click the "advanced..." button.

A new window appears, click the "Monitor" tab at the top.
You will see a drop down menu in the middle of the screen. If available, leave this setting to optimal.

Otherwise, in windows 2000, there's a check box to only show refresh rates your monitor supports, make sure that's checked (problms will occur if it's not). Once checked, click the highest number on the drop down menu.

Clcik OK to everything (including any warning messages windows might give) until you get back to your desktop.

_____ Thanks for the informative article, makes perfect sense.

[proze]

just do not set your monitor to a refresh rate it doesn't support... we're talking permanent damage if you do.