Input Lag vs Response Time – Which Should I Prioritize For Gaming?

Want to know input lag vs response time, don’t worry, we got you covered. Read this guide thoroughly so you don’t miss anything out!

Is it important to have a low input lag, or is it better to focus on a low response time?

Most of us have heard about the importance of input lag in PC gaming before, but we’ve never really thought about what exactly it is.

In this article, we’ll discuss the pros and cons of both input lag and response time, as well as how each impacts gaming performance. We’ll also explain how to check if your monitor has a good input lag or response time, and how you can improve your monitor’s response time.

You can ruin your gaming experience if you have high input lag and slow response time. It can be unbearable if the input lag is too high. First, make sure the input lag performance of the display is acceptable, and then look for the fastest response time speed.

When it comes to a fluid gaming experience, input lag and response time are equally important but too high of a lag can make competitive gaming unbearable.

Thankfully, most new gaming displays offer both low input lag and quick response time so you won’t have to compromise. When looking at the display’s specifications, many people mistake the response time for input lag.

Input lag is the delay between the screen and your commands, such as a press on the keyboard or mouse. The time it takes to change from black to white, or from one shade of gray into another is called response time.

Response Time

In fast-paced games, a quick response time speed is needed to eliminate ghosting or trailing behind fast-moving objects.

The maximum refresh rate is the most important factor in determining how fast the response time speed needs to be. In order to refresh the image 60 times per second, a 60hertz monitor has to be used.

If it takes longer than 16.67ms to change from one color to another, you will notice ghosting behind fast-moving objects. For a 144Hz monitor, response time needs to be less than 2.94ms, and for a 240Hz monitor, less than.

The specified response time speed that monitor manufacturers quote (such as 1ms GtG, 4ms GtG, etc.) refers to the display’s fastest pixel transition possible from one shade of gray to another under certain testing conditions.

It takes longer to change from black to white than it does from light to dark, so even if all white to black transitions are below the quoted 4ms, some dark to light transitions might take over 10ms. 

In fast-paced scenes with a lot of dark pixels involved, ghosting wouldn’t be as noticeable, while in other scenes it wouldn’t be noticeable at all. Generally, if you want to avoid ghosting, you should look for gaming monitors with a specified response time speed of 1ms GtG.

This isn’t a guarantee of flawless response time performance, which needs to be properly maximized via the monitor’s overdrive implementation.

A good implementation of overdrive will ensure that the pixels change fast enough but will also prevent inverse ghosting. The overshoot was very small.

Inverse ghosting is caused by pixels being pushed too hard by an aggressive overdrive setting, which leads to a bright trail following moving objects. To find out how well the overdrive is implemented on a monitor, as well as what setting should be used at which refresh rate, you will need to look for detailed monitor reviews.

Input Lag

The lower the input lag is, the higher the refresh rate is. Since the picture gets updated more frequently and you can react to it sooner, a 120Hz display will have essentially half the input lag in comparison to a 60Hz display. All new high refresh rate gaming monitors have low input lag in relation to their refresh rate which means that the delay between your actions and the result on the screen will be invisible.

If you want the fastest gaming monitors available for competitive gaming, you should focus on its response time speed performance. The input lag on TVs is higher than the monitors.

For the best performance, look for a TV that has a native 120Hz refresh rate, otherwise, it won’t work. It is very important that the Game Mode is enabled on the TV. It reduces input lag by not processing certain images post-processing.

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GtG vs MPRT Response Time

Sometimes, monitor manufacturers will specify a response time speed of 1ms without declaring if it is a GtG or MPRT measure. The 1ms MPRT measure is only available if you enable the monitor’s backlight strobing technology, which reduces the perceived motion blur at a cost of picture brightness. It does improve motion clarity, but it can’t be active at the same time as a variable refresh rate technology.

When looking at the specifications, be careful, and always check the monitor reviews for full information. With TVs, the response time speed is not specified, meaning that online reviews are the only way to find out how fast a certain TV is. This doesn’t apply to OLED TVs, which have self-emissive pixels that can change instantly.


The results are what matter and the only thing that matters is what happens in the next second. There is no such thing as input lag and there is no such thing as response time. 

This blog on “Input Lag vs Response Time” would help you with this issue.



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