Will a higher refresh rate on my moniter take up more CPU or GPU time?

[ZeroAce]

Any real difference between 60hz and 85hz?

[The_Saint]

No it will not. 85HZ is much better for your eyes. Although I would go for 100Hz if you can.

You will not see the flickering anymore at 85Hz and above.

[ArcticFox]

NOOOO!

Setting your monitor above 85hz is stupid, and will only induce stress on your monitor, unnecessarily. After a point, usually around 80-85hz, you won't see any flickering, but you will see your text get fuzzier if you don't have a top-end monitor. I use a Proview 19" flat-screen running at 1280x1024 at 85hz, and theirs no flicker, only a very slight fuzziness of the text (not enough to bother me though).

Theirs science behind this though; I don't remember the number exactly, but your eye can only detect so many refreshes per second, so setting it past that number is useless and can damage your equipment if your not carefull. Depending on your eyes, it usually occures around 80-85hz, and if you can see a difference when you hit 90, sorry, but you're under 13.

[The_Saint]

Setting your monitor above 85hz is stupid, and will only induce stress on your monitor, unnecessarily.


How can you induce stress on a monitor that was built to support lets say up to 100HZ? I`ve never heard that you can stress your monitor with the refresh rate.

If the manual says that it support 100HZ at 1024*768 then I don`t see why it should be stressed.

[rpertusio]

It will stress your monitor, in the same way that driving your car at 85mph will stress the car (even if it is designed to go up to 100mph.)

Note: Your eyes will still pick up the flicker at any resolution. It is a matter of the intensity of the flicker. Adjusting to 100hz would appear to have no flicker, but your brain/eyes can still 'see' the flicker, whether you notice it or not. Staring at a 100hz monitor for a long time will still give you a headache from a flicker, whether you can visibly recognize it or not. (At 60hz, you would get a headache faster)

- rp

[Telexen]

It will put more load on the Graphics processor/memory, as it has to push that reslution...but it won't be noticed.

[ZeroAce]

Medically the cutoff for the human eye is 72mhz.

[John Prophet]

It will put more stress on the GPU no doubt....it has to do more work to refresh at 85hz than at 60hz....if it is onboard video then, yes, it is putting more stress on the CPU.

In doing work around town I am shocked at the number of businesses that, you walk in, they have the old w95 comp sitting there, with a refresh rate of 60hz....then they have a bottle of visine sitting next to it.

I read an interesting article that suggested many people who but lcd's do it cuz they get rid of the flicker..when actually, a simple adjustment to the refresh rate would do the same thing, lol.

Personally at 70 or 75hz I am quite fine with no eye strain.

At 60 hz I must change it right away.

If you want to know if 85hz stresses the monitor more than 60hz..look at this real life illustration.



A dude brings his old comp in for some work....he just brings in the tower, not the monitor etc. So the tech working on it adjusts the refresh rate to 75 hz to reduce eye strain while he works on it....well, he forgets to put it back on 60hz and he sends the comp back. Dude gets home with comp and low and behold, he hooks it up to his monitor and the monitor has a tiny distorted picture about 4 inches square, lol. Dude calls back irate and says "whatever you did blew my monitor up"....you get him to boot into safe mode, put refresh rate back on 60hz, and life is fine again.

So there you see that the monitor couldnt hold that 75hz rate but could hold the 60hz.

JP

Was this peep from a real incident or made up to illustrate a point?

[VHockey86]

are LCD panels native refresh rates different? I've got a 15" LCD and Ive always run 60hz with no flickering/no problems