Higher refresh rates on large LCD Monitors at native resolutions.

November 5, 2007

Posted By:  bugfreezer

22 Votes

Status: Archived

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I really want to get a larger LCD monitor (24" or higher), but I hesitate because I am looking for a higher than 60 hz refresh rate - I see the flicker at that freq. Please get the specs improved on those larger monitors to support 75-85hz vertical refresh rates.

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  • Nov 6, 2007     Comment Link

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    Posted By: sazar

    What would be important to gamers is repsonse time. This reduces ghosting and high response times lead to bad experiences, even when watching movies. I own the 20" ultrasharp and 24" ultrasharp. At their native resolutions, they are both maxing at 60Hz on the refresh but that is the last thing I look at. Response time was critical and both have actual response times around 12ms or less, which is where all LCD's being considered for gaming should be around. I will re-iterate once more, for emphasis, refresh rates don't affect LCD's. There is only one situation I can think of where this might come in handy. For the fraction of a fraction of a percentage of a population who can actually discern FPS over 60, if they synch the games to the refresh rate of the display and are playing at 75Hz at the resolution you are at, they will get 15 extra FPS, locked as the max to prevent tearing. That is the only situation I can think of but you are getting perfectly fluid frame-rates if the minumum is over 40 anyways.
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  • Nov 6, 2007     Comment Link

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    Posted By: bugfreezer

    NP Sazar. Being an IT helpdesker myself, I understand the aggravation (and incidentally should have done more research). However, in my comments that I have modified above, there was a link to an article that while explaining how LCD refresh and CRT refresh differs, a point was inferred that 60hz could frustrate gamers and video types (office workers are fine as is. Since Dell does market to gamers via the XPS line and has the workstation class machines as well, the suggestion that higher refresh in larger monitors might still warrant looking into (I don't live near a dell Kiosk where I can see these monitors in action gaming-wise). PS: For the record, the US 1707FPV does allow 60, 72 and 75 hz natively at 1280 x 1024 - the "Hide modes..." is still checked. Thanks for the feedback! :)
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  • Nov 6, 2007     Comment Link

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    Posted By: sazar

    http://en.wikipedia.org/wiki/Refresh_rate Read down to the section about LCD's. Performing your suggested experiment won't do much, except perhaps burn out your LCD if you are testing out of frequency. Off the top of my head, at the recommended resolution, which should be 1280x1024 for your 17" display, you should have a max frequency of 60Hz. I would not recommend going above that at the native resolution. I didn't mean to sound rude or put you down. However, seeing so many new submissions everyday, a lot of new threads are created as suggestions where the technical information is simply wrong. As such, would the onus not be on the thread poster to do some research before posting a suggestion? Deleting said threads would perhaps give people pause for thought instead of just submitting submission after submission for points. We only have about 5 billion "lets have LINUX NOW" threads on pretty much the same topic so far, as an example :) Cheers.
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  • Nov 6, 2007     Comment Link

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    Posted By: bugfreezer

    Ok, I'm open to testing the premise...I have 2 Ultrasharp 1707's, and I will run one at 60hz and 1 at 75hz and see for myself. Matt, thanks for your response. Sazar, I'm all for enlightening those who do not know as much as others, and I am all for not wasting space on erroneous info, therefore a explanation or a link to an explanation as appropriate would be helpful if an erroneous thread needs to be closed (unless the OP was egregiously off to begin with) - most of us aren't super aware of the significance of refresh rates, not to mention the differences between lcd & crt mechanics. Example: "Here is a link that explains why LCD refresh rates are not an issue like they are in CRT's: [http://www.edbott.com/weblog/?p=1248]". Gamers and video folks might still be frustrated with 60 hz (think frame rates), so my suggestion remains.
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  • Nov 5, 2007     Comment Link

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    Posted By: sazar

    Anybody who is voting this up has no clue about how LCD's work. CRT's, sure, I agree but there is no flicker with LCD's because they operate on a completely alternate technology. We might need to start the option of closing threads or suggestions that are based on erroneous information or lack of technical knowhow.
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  • Nov 5, 2007     Comment Link

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    Posted By: jervis961

    Well, I just learned something new. :)
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  • Nov 5, 2007     Comment Link

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    Posted By: matt_d

    LCDs don't have the same refresh flicker as CRTs. The LED is either "on" or "off" effectively. So higher refresh rates won't affect flicker the way you want.
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  • Nov 5, 2007     Comment Link

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    Posted By: bugfreezer

    To clarify - I want to see the higher refresh rates at the monitors *native* resolutions (2560 x 1600, 1920 x 1200, etc)