Input Lag of 2014 TVs
Updated May 02, 2014
The input lag of a television is the time from a picture is generated
by the source to the picture appearing on the screen. An input lag of more than 50ms starts to be noticeable by competitive gamers, > 75ms by good gamers of fast games and > 100ms by the majority of people. Anything more than 125ms is not playable for a fast game.
Do not confuse the input lag time with the response time. The response time is the time a pixel shift from one color to another, which is significantly less than the input lag time.
Input lag of 2014 TVs
The following table lists all input lags that we measured for 2014 TVs.
Input Lag: 17.8 ms
Input Lag: 24.3 ms
Input Lag: 24.3 ms
Input Lag: 30.1 ms
Input Lag: 33.9 ms
Input Lag: 33.9 ms
Input Lag: 34 ms
Input Lag: 36.3 ms
Input Lag: 43.4 ms
Input Lag: 44 ms
Input Lag: 44.1 ms
Input Lag: 46.1 ms
Input Lag: 49.4 ms
Input Lag: 76.5 ms
Input lag of 2013 TVs
See our results for 2013 TVs.
How do I fix the input lag problem of my television?
Don't worry, most televisions can be adjusted to not have a
high input lag. Try the following (which is how we setup the TVs in our tests):
- Set the TV into the Game Mode or PC Mode
- Disable all the settings of the television
Additionally, you can try a lot of combinations of settings/mode/inputs.
To get the lowest input lag on Samsung TVs, you need to label the input as PC. To do this, press the 'Sources' button on your remote, highlight your input, press 'Tools' on the remote (or enter for a few seconds on some models), then select 'Edit Name' and then select 'PC'. This usually drops the input lag by half.
Why is the input lag important?
The input lag is only important if you are playing video
games. Movies or televisions shows are not affected because there is no
interaction with the signal that you can do. If your television has a high
input lag, you will see all your movements and interactions delayed on the
screen. This is even more important in timing critical games like FPS or rhythms
based (like Guitar Hero). When watching a movie however, even if the video is
delayed by 1 minute, you will not see a difference unless the sound is not also
Why does the television take time to display a picture?
The total input lag time is the addition of 3 parts
There are 3 main parts that delays the
television: acquiring the source image, processing the image and displaying it.
Acquisition of the image
The source signal does not always come in a native format for the television. A digital television will have to convert the
analog RGB component signal to digital. This conversion takes time. If you are seeing a lot of lag from an
analog signal, try using a digital signal instead because the television will
need to do fewer operations to transform it. The closer you are to the
television native format, the less input lag you will have.
Once the image is in a format understandable by the video
processor, it can change it. This includes:
- Adding overlays (like menus)
- Adjusting the colors and brightness
- Interpolating the picture to match the television refresh rate
- Scaling it (720p -> 1080p)
The time of this step is affected by the speed of the video
processor and the amount of processing needed. Even if you cannot
control the speed of the processor, you can control which operations it needs
to do with the settings of the television. The more settings you enable, the more work the processor needs to achieve.
Some televisions have a dual core processor in them. This can help reducing the input lag if a lot of processing options are turned on.
Displaying the image
Once the television has processed the image, it is ready to
be displayed on the screen. This is the step where the video processor sends
the image to the screen. However, the screen cannot change its state instantly, the time will depend on the technology and components of the television. A plasma screen can change its
picture faster than an LCD screen. You cannot control the time of that phase, it
is fixed per television.
How is it measured?
An input lag of 40ms can be seen on the television.
The input lag is not in an official
television specification because it depends on two varying factors: the type
of source and the settings of the television. The easiest way you can measure it
is by connecting a computer to the TV and displaying on both the same timer. You can
find such timer here. Then, if you take a
picture of both screens, the difference of times will be your input lag. This
is however an approximation because your computer does not necessary output both
signals at the same time. For example, the setup to the right indicates an input
lag of 40ms (1:06:260 – 1:06:220).
In our tests, we measure it using a dedicated device made just for this. This is a lot more accurate than the two screens method (except for plasma TVs).
Televisions makers knows that adding a lot of video
processing increase the input lag which is why they usually have a gaming mode
setting. The gaming mode will disable some of the most time consuming
processing of the television. However, the gaming mode is not necessary the setting
that guarantees the lowest input lag of the television; you will sometime need
to play with the other settings to get an optimal input lag time.
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Oct 03 2013
I love Panasonic ST60
. There's some many pros to this tv but I read a lot of lag issues reviews, not to buy this tv if you are a gamer. Should I buy or what do you recommend? Max budget is ST60 range and I'm buying this tv to play ps4.
We tested 54.2ms on it, which is average. It is definitely playable. Most people cannot notice an input lag of under 75ms, so I wouldn't worry about it.
Jun 22 2012
Why do old CRTs do not have any input lag?
They do have an input lag, but it is a lot less than today's televisions. They are analog televisions: the picture information is not a series of 1s and 0s, but is a continuous signal. They don't have a video processor at all; the only processing that they do are very basics and analogic only. The signal can go straight from the input to the cathode tube without waiting to be digitalized or processed. They are a lot faster to display an image.
Feb 19 2014
I have a tv with 38ms lag time, I do competitive gaming will this be ok or even good for that?
38ms is pretty good. I wouldn't worry about it. Your internet probably has more lag than this.
Apr 01 2013
What is "CE Dimming"? Is it a Samsung-only issue? Is there a way to turn it off?
CE Dimming is the name of the technology of Samsung that dims the whole backlight of the screen on darker scene. There is no way to turn it off directly, even in the service menu.
Sep 16 2013
Where can I find info about input lag on a specific model? Cannot find any info on manufacturers' page. For example LG 55LM760S and Samsung UE55F7005.
Manufacturers do not list it. Unfortunately, we haven't tested the US version of both these TVs yet, but have a look at the closest ones that we tested: LG LA6200
and Samsung F6300
Sep 28 2013
The input lag that you specify for each tv model is a measure of the lag in "Game Mode" or at the normal settings?
The input lag measured in our tests is the lowest we could get with the TV. We test a few modes and different settings combinations. Most of the time, this correspond to the Game Mode.
Feb 04 2014
Would the LG LN5700
be okay for gaming with black ops 2 or is the input lag too high? I was thinking about getting this model.
It is playable, but hardcore players will see a little bit of lag. Go for the LN5400
instead, which is basically the same thing but without the smart TV features.
Jan 14 2014
Is there any chance you can test the input lag on the Samsung f8500
plasma with the hdmi input named Game(instead of PC) and the tv in game mode? I have this tv and with the hdmi input relabeled to PC the picture quality suffers too much. I have heard that recently Samsung sent out a fix and the lowest input lag is with hdmi named Game and Game Mode on.
Unfortunately, we do not have that TV with us anymore, so we cannot retest it.
Mar 30 2014
I have a Sharp Aquos LC-90LE857U television. I also have a Bose Lifestyle 535/525 series 2 home entertainment system hooked up. Everything seems to function fine except in regards to my PS4 and Xbox One consoles. Both seem to have a lag in between the controllers and the image displayed on the tv screen. I have changed the settings on both consoles but that doesn't seem to help. Both consoles are run to the Bose first, then the Bose is connected to the tv via 1 HDMI cable. Any advice?
Have you disabled the processing options of your TV / put it in game mode? If so, it might be the Bose that adds the input lag (although unlikely). To try for it, connect your consoles directly to your TV instead. If it does resolve the problem, you still can get the audio via your Bose by HDMI Arc or the optical connection.
May 23 2014
I got 3 questions. 1) Are you using the leo bodnar lag tester for your input lag tests? 2) Also, is it true that a plasma TV reports a higher input lag number because of its luminescence? 3) If so, should we expect a little better "feeling/experience" from a given plasma input lag number?
1) For 2014, yes but for 2013 we used the two screens method. 2) Yes it is true that the tool isn't accurate for plasma. The flickering of plasma TVs messes up with the tool because the tool is using a luminosity threshold to detect the lag, so it takes a little longer for the plasma to trigger it. 3) Indeed, maybe like 10ms less.
May 29 2014
Could you do a video with 2 TVs side by side, one with bad input lag and the other with excellent input lag, load up a first person shooter then just look from left to right and make the video slow motion? That would be very informative for people to really see what input lag can do in a video game that needs quick reflexes.
We could, but I don't think it would be very useful. The difference between a high input lag TV and a low one is about 30 ms, which also correspond to 1 frame of a 30fps game. Filming it in slow motion will just show one TV delayed by 1 frame, but it won't give you an idea of the feel. We thought about adding instead a tool to our website hat adds a variable delay to a moving object, so you could experience it. The problem with this though is your computer screen also has an input lag, so it will be added to it.
Jul 15 2014
Is there a work around for game mode? If I disable all bells and whistles but leave on Movie mode to avoid CE Dimming, will I achieve a work around?
You won't get a low input lag just by disabling everything. CE Dimming can be avoided by going into PC mode also.
Jul 20 2014
I have a old orion tv ( the big ones or the "tube" tv), I am planning on getting the benQ XL2420z with a response time of 1ms, would the benQ be faster response time then my old tv? I play competitive gaming on xbox and would like to see if this would be better than my old tv, I am not sure if the old tvs have any response times like todays tvs? Or are old school tvs just faster then today's tvs?
First, do not confuse the response time with the input lag. Response time is the time to switch a pixel (and BTW, no LCD has a real response time of 1ms, this is just a fake marketing number). With that out of the way, the input lag is indeed lower on CRT TVs, but nowadays LCD monitors have an input lag low enough to not be noticed. As for the response time, CRTs also win because they don't hold the pixels for the duration of the frame (they flicker), so they can switch a lot faster.
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