1920 x 1200 @ 75hz?

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cybz

Weaksauce
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I'm looking to get a 24" LCD but i'm not going under 75hz i got the samsung T240 but unfortunatly it can't go over 60hz i'm gonna have to return it I wondered if any of you could confirm a 24" that can do 75hz, what about the Acer P243WAid, anyone has that monitor and can check the refresh rate at 1920 x 1200, or any other monitor that could possibly do it?
 
The T240 is a standard 5ms TN Film panel without RTA/RTC. The actual measured response time of "5ms" panels is between 16-25ms or greater on average. There's usually only one or two transitions that happen in 5ms grey to grey. Because of this, you won't actually be able to display 75 clean frames per second no matter what you do. This is partially due to the slower response time and partially due to the hold type display that LCD's are.

75hz also requires greater than single link DVI unless you're going for VGA, in which case it's dependent entirely on the DAC. So make sure your cable and card are dual link if you do go DVI. If you're concerned about tearing or movie playback, you might consider rendering in Direct3D instead of overlay (DXVA, VLC options, etc) or using a synchronization plugin for Directshow like Reclock.
 
60Hz is standard for an LCD monitor. Only analog will allow you to change it to 75Hz, but many times the monitor's circuitry simply converts it down too 60Hz.

If 60Hz is " too low", then stick with a CRT.
 
Thanks lawless2142 very informative, do you have any suggestion of a good monitor for me? 60hz may be standard but i find it too low. My 19" samsung runs at 75hz. A lot of LCDs can do 75hz. I do have dual dvi, no vga input tough.
 
cybz said:
60hz may be standard but i find it too low. My 19" samsung runs at 75hz. A lot of LCDs can do 75hz.
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What's your basis for requiring 75 Hz? There's no flickering like CRTs because the image is persistent between frames, and playing games or watching movies you should be focused on the action enough to not notice the difference.

A lot of smaller LCDs can do 75 Hz, once you get over 19" the bandwidth requirement is restrictive. And as JaguarSKX said, a lot of them that claim 75 Hz may be decimating by 1/6th without telling you.
 
Yup. How is 60Hz too low? Only very fast movement in games is not perfectly fluid, but brain adapts soon if you keep using it and sort of "fills" the empy spots. Movies and such are played with 25fps or 30fps. And LCDs wont flicker at all either if thats what you think. Actually its bit wrong to say Hz in LCDs cuz they dont flicker in 60Hz frequency like CRTs, but picture is constant and is simply redrawn 60 times (or frames) per second so your eyes are safe. Also, mostly 75Hz in LCDs is faked and causes juddering in the movement.

There will be 120Hz LCDs coming soon though. I hope its real 120Hz (or fps) too.
 
i know it doesn't flicker but for people who play fast paced games like quake 60hz is very limiting i'm not saying i can tell everytime the screen refreshes but the overall smoothness changes. My 75hz LCD is not fake i can tell by using vsync. In games like Crysis or COD4 i don't really see much of a difference. I heard of the 120hz, i hope its real 120hz unlike TVs, that if i turn vsync on i would have 120 fps, that would be awesome, any idea when we will see them on the market?
 
There are some 22" LCDs that can do 75Hz, but I haven't heard of anything above that size that can.

Viewsonic is supposedly releasing a 120Hz 22" LCD later this year (the VX2265WM), but no one knows yet if this is a "true" 120Hz or just something like black frame insertion.
 
I know this is a old thread, but it's something I've done a fair bit of research before posting.

I can't believe how few screens there are out there that do higher than 75Hz. Acer have had a couple of models come & go that will do 75Hz, currently there is only the 24" Widescreen that is 1920x1080 at 75Hz, which is not bad, but not as nice as 1920x1200 at 75Hz.

My reasoning is this. I run a Viewsonic VX2835 (28" LCD, 1920x1200 at 60Hz), which is not a bad screen, colour isn't what I'd classify as 100%, but from a TN screen, what do you expect. :). Anyhow, I'm a long time gamer, & always run Video Sync, as with it disabled the texture tearing really distracts me (I'm one of the unlucky people that can see it). Online gaming at 60FPS/60Hz is FAR different to online gaming at 75FPS/75Hz, on my old VX2235 (Viewsonic 22" LCD) I can force it to do 1680x1050 at 75Hz (Nvidia software allows me to tweak it, does take me a little bit to get it right, but can get it, not on DVI, only on VGA). What I notice immediately is how much smoother the game feels.

I used to run a 24" CRT screen which I could pump out 1280x1024 at 100Hz, which was awesome, but after I got used to it, I tried seeing the difference between 100Hz, 85Hz, & 75Hz (Didn't bother with 60, as I only have to walk passed a screen & can generally pick it if it's at 60Hz). Between 100 & 85, I could not pick any difference at all. Between 85 & 75Hz I thought I could tell the difference, but I wasn't sure, hence, not a big enough difference to bother tweaking graphics to get a extra 10FPS from all games. Basically, all games I play, if the FPS drops from the VSync, I either down the graphics quality, or buy a new graphics card. Hence, I don't play Crysis, lol.

75Hz I only chase for gaming, for everything else (desktop, movies, graphics editing etc) I find 60Hz indistinguishable from 75Hz.
 
I can force it to do 1680x1050 at 75Hz (Nvidia software allows me to tweak it, does take me a little bit to get it right, but can get it, not on DVI, only on VGA). What I notice immediately is how much smoother the game feels.
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Check your monitors OSD and view resolution info. If it says 60Hz then all you are feeling is placebo. Your 75Hz signal gets interpolated to 60Hz, which increases stuttering. But if it really shows 75Hz, then I might consider trying VGA on my screen aswell. I fear that I might damage my screen though.
 
I don't think a difference between 60 and 75Hz is going to be that noticeable
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In smoothness of very fast motion, yes it might very well be. Cant say though cuz I have never seen LCD with real 75Hz...
 
Yeah, I checked the last few pages of that thread. But again, did you check the resolution info in the OSD? It does show what refresh rate the picture is drawn.
 
MaZa, Onscreen Menu does say 75Hz when I've forced it. :) As for placebo effect, I'm a 30 Y/O IT Techy, I've got a reasonably good eye for detail, I wish it was, then I'd just get some self-help tapes to go to sleep telling me that the game is smooth, it's running 150Hz at 150fps heh, but alas, reality has a different plan.

I play a game called Urban Terror ( www.urbanterror.net ) it's one of the fastest paced FPS games I've played, & I love it, been playing it for about 7 years now.... lol .....The difference between 60fps & 75fps is extremely noticable, not only the way you move, the way you shoot, but mostly in tracking targets. The difference between running 60Hz on your screen, & 75FPS or 125FPS is huge to me, but not everyone can see the texture tearing. If you can't, then don't look for it! I've bought a few gamers around to the whole running Video Sync, & about 50% of them can't go back to running it out of Sync.

On a side note, I haven't been able to force 75Hz on every VX2235WM, even with exact same model, not all of them can handle it. I've forced it on about 3 different screens out of 7 or 8 I've tried. Unfortunately I can't do it on my VX2835 or I'd be very happy.
 
Interesting. Perhaps I really should try this myself someday and see what my LP2475w is capable of.
 
Only do it if your scaler lets it pass the refresh rate to your panel. Otherwise it will just take 73hz for example and bring it down to 60hz which would cause your monitor to frame skip. Some monitors would force it back to 60 hz and show 60hz in the osd. Other monitors would show 73hz and frame skip. While others like the lg227wtg-pf will let you run the signal straight to the panel. Depending on if your panel has low pixel response time will determine if it will be smooth are not. (a pva sceen that is say 16ms will not get any smoother no matter how high you raise the refresh rate. All it will do is cause artifacts if it is sending it past the scaler. If it isn't it might just frameskip

It's funny how people say you don't benifit from it and they say 60 hz is fine. They say it only matters on a crt at 60 hz because of flicker. If we were to run the lcd at 2 hz. It wouldn't flicker but we know that 10hz 20 hz etc will look smoother. 17ms(1frame)would happen all
the way up to 60 hz. Then it would get smoother depending on if the scaler are just artifact;)

Everyonce in awhile you will get a scaler that will allow it, that just so happens to get on a panel that can push it. this is why some people can hit 73 while others hit 84 for example.
Ironicly people think that it isn't smoother. Honestly 60 hz is more than smooth enough for me to play games . But I like it smoother. I can tell the diffrence just by takeing an open window and spinning it in a circle. I can tell a diffrence and I like the way it feels. More reponsive especcily since this has 0 input lag.(1:1 pixel mapping 2)
 
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