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Pixel response time for gaming?

post #1 of 6
Thread Starter 
What is the minimum pixel response time needed so you can game? I really want to get an IPS monitor for work purposes but I still want to be able to game.
post #2 of 6
Depends on what type of games.

Turn based - probably wouldn't matter

FPS - I would get between 2 and 5ms response time.
post #3 of 6
Depends on the game and how you see things. The faster the motion and the more jarring the color transition between obvious edges (e.g. a long line between a building and the sky), the more likely you'll see motion artifacts. Uh, also, the response time makes a small impact on effective display latency: if it takes say 15 ms rather than 5 ms to reach 80% of what the new color should be, that means you'll effectively see the new information a bit later.

Nominal response times listed by manufacturers are almost meaningless though.

Even the slowest IPS and *VA panels these days are usable if you don't mind some (or a lot) of blurring and stuff perceptually showing up very slightly later than it ought to. In fact, some 2 ms and 1 ms advertised TN panels have reverse ghosting artifacts that are arguably worse perceptually than seeing the ghosting of a nominal 14 ms IPS panel.

If you want an IPS with relatively good motion performance, check good reviews. But pretty much all the Asus IPS / PLS models should be fine, as you can adjust the so-called "Trace Free" (pixel overdrive control) to reasonable levels. Some alternatives are stuck with too much or too little overdrive, though there are some other models doing a fine job.
post #4 of 6
Both IPS/PLS ~6ms response time is fine - the real kicker is input lag and the Korean brands are identical to the 2ms BenQ XL2420T i compared against it.

While lightboost motion is awesome, to be honest the IPS/PLS is not that far behind. For all around use, including hardcore gaming (maybe not "competitive") these korean monitors cant be beat imo.
post #5 of 6
It depends on how much of a gamer you are, and what type of games you play. For some people, sometimes simply just having a 1ms-2ms panel is not enough, and you want motion blur reduction strobing (such as LightBoost). For other people, it's more enjoyable to game on an IPS panel.

Many panels of 1ms, 2ms and 5ms response time, still have a whopping 16.7ms (1/60sec) of motion blur due to the sample-and-hold effect. (see animation of sample and hold effect)

LCD response time == the time it takes for a pixel to transit from one color to the next color
sample-and-hold time == the time the pixel is continuously visible at the same value. Also called "persistence".
(today, sample-and-hold is the major cause of motion blur, as seen in the animation)

Some people are very sensitive to motion blur, so if you can max out the motion fluidity of a monitor to its maximum limits (ideal situation of synchronized framerate=Hz motion), using a strobe backlight such as LightBoost to reduce/eliminate the sample-and-hold effect -- the motion clarity differences amplify:

That said, this is quite visible if you are (A) motion-blur sensitive or get headaches from motion blur, and/or (B) You know CRT motion clarity, and want the same thing in an LCD, and/or (C) you play primarily first-person shooter games, racing simulator games, or other games that involve fast motion. You do exchange a lot of color quality for motion quality. So it is not ideal for things like programming or PhotoShop or lots of office work, unless you've hated LCD over CRT.
Edited by mdrejhon - 9/18/13 at 6:42pm
post #6 of 6
Thread Starter 
Hey I appreciate you all taking the time to post your answers. Your answers have lead me to more reading and I have a better idea of the kind of monitor I need for my needs. Also this light boost looks pretty awesome. Thanks again everyone!
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