2560x1440p LCD monitors overclockable to 120 Hz

There are several 27″ high resolution 2560×1440 computer monitors that are “overclockable” to 120 Hz using a high quality IPS (or PLS) panel, including the Catleap 2B and the Overlord Tempest X270OC.  These are not as clear motion as LightBoost (CRT clarity), but have much less motion blur than 60 Hz (photo comparison of motion blur).

These displays overclock using refresh-rate overclocking methods such as ToastyX Custom Resolution Utility (harder), or those found in EVGA Geforce Titan or GTX 680 (easier, shown in dialog below):

evga_overclock

Recently, HardForum users have found that the much cheaper QNIX Q2710 Evolution 2 monitor (1440p) overclocks easily to 100-120 Hz!  These high resolution 27″ 2560×1440 displays cost between $300 to $350 on Amazon.

For a listing of all overclockable 120Hz monitors, see IPS 1440p 120Hz Monitors.


About Chief Blur Buster

Head of Blur Busters.

9 comments on “2560x1440p LCD monitors overclockable to 120 Hz

  1. Captain-Falcon says:

    Hi,
    How is the motion blur of these overclocked monitors compared to native 120 hz TN ones?
    I already have a 120hz TN ,and an WQHD IPS ( Asus VG278HE and PB278Q),and the smoothness is very noticeable between those two monitors.
    So, is the Overlord Tempest X270OC comparable to the Asus VG278HE ,or it simply doesn’t match it because of the lower IPS pixel response time?
    Thanks.

    • Chief Blur Buster says:

      If you’re a CRT die-hard, it still got much more motion blur than LightBoost.
      Vega switched from a 120Hz IPS overclock (Catleap 2B) to a LightBoost, because of this.
      The comparision as as follows:

      60 Hz LCD — baseline
      120 Hz LCD — about 50% less motion blur (2x shorter motion blur trail)
      120 Hz LightBoost — up to 92% less motion blur (12x shorter motion blur trail)

      In a situation where fast-panning motion creates 12 pixels of motion blurring on a 60Hz monitor, you get 6 pixels of motion blurring at 120 Hz. But LightBoost (optimized OSD=10%) has only 1 pixel of motion blurring for exactly the same motion. This is CRT clarity.

      Now, IPS overclocks generally only have about 40% less motion blur because of streaking when overclocked, so the blurring is only reduced by approximately 1.7x. This means LightBoost still has much clearer motion than a 120 Hz IPS overclock.

      That said, color quality on IPS can be much better (no color shifts due to viewing angles), and you get 1440p options, so I understand why some people prefer LightBoost, and why some people prefer a 120Hz IPS overclock (as a preference). My favourite overclock is QNIX QX2710 because it is pretty cheap ($340) and easily overclocks to 120Hz. (PLS = LG IPS). There is a large HardForum thread about this monitor and 120hz.net.

      If you don’t care as much about motion blur, then this is a good one to try if color quality and resolution is numero uno for you (and want a little bit less blur than 60Hz). Personally, some of us at The Blur Busters, are more sensitive to motion blur!

  2. Captain-Falcon says:

    Thanks for the answer.
    I prefer smoothness over picture quality or resolution for gaming ,because it feels better,it’s a very nice sensation of fluidity.
    But yes the pixel size and “washed-out” colors are bad compared to Wqhd Ips.
    I will try the Lightboost thing as soon as i get an Nvidia card,but for me it’s already ok at 120hz without Lightboost.
    So,will i get the same smoothness with an overclocked Ips like the Overlord Tempest ?(without lightboost of course)

  3. Captain-Falcon says:

    Hi,
    I finaly got a QNIX Qx2710,so i just want to leave some feedback.
    The packaging is ok,carefuly packed.The built quality is a little cheap.The stand is bad,but can be changed.
    About the screen itself,once calibrated with Catalyst in addition to Powerstrip it looks good.
    Overclocking to 120 hz works with my Radeon HD 5870 ,even in Crossfire.It doesn’t drop frames.
    And it feel overall as smooth as the Asus VG278HE.
    I didn’t noticed dead pixels,there is also some backlight bleed,but not too annoying during gaming.
    Voila.

  4. Verdex says:

    I’ve been trying to get this QNIX Q2710 to be overclocked using the ToastyX utility. But, every time I set the new refresh rate and put the profile at the top of the list, and reboot. The higher refresh rate is NOT available as an option on the monitor tab…
    Not really sure what I’m missing… I’m wondering if its my old video cards. I have 2x GTX 285s in SLi.

    Granted I’m not expecting my much performance out of this old rig. I have a new rig coming with a GTX 780. But, since the monitor arrived first, I wanted to take a shot at overclocking it. Any ideas on what I might be doing wrong?

    Thanks. –Verdex

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