Input lag is the delay between the moment a video signal is sent to a TV and the moment the corresponding image appears on the screen. TV manufacturers generally do not list input lag as a standard specification, but it is an important parameter when a TV is used for gaming or as a computer display.

The amount of input lag depends on how the TV processes the incoming signal. Picture-processing features can add additional delay, while Game Mode is designed to reduce processing and provide a faster response.

The following tables show input lag measurements for selected LG, Samsung, Sony and Sharp TVs from 2015. The results are shown with Game Mode enabled and with Game Mode disabled.

The measurements are historical and apply to the TVs and settings tested at that time. Input lag can vary depending on the input signal, picture settings, firmware and measurement method.

TV input lag in 2015

US models

TV modelGame Mode input lag (ms)Outside Game Mode (ms)
LG LF550028.431
LG LF560029.829.8
LG LF600035.938.8
LG EC930040.7106
LG LF580049.7149.8
LG LF610050149
LG LF630050120
LG UF76005565
LG UF77006060
LG UF68006064
Samsung JU750021120
Samsung JS950024155
Samsung JS900024140
Samsung JU710026128
Samsung JU650026.5119
Samsung JS700028122
Samsung JU670028117
Samsung JS850037118
Samsung J40003939
Samsung J55004092
Samsung J62004565
Samsung J630045128
Sony R510C4647
Sony X900C3572
Sony W850C3655
Sony X830C3774
Sony W800C3854
Sony X930C3869
Sony X850C4064
Sharp LE653U3535
Sharp UH30U4662
Sharp UB30U80147

The results show that Game Mode could make a substantial difference on many 2015 TVs. For example, the Samsung JU7500 measured 21 ms in Game Mode compared with 120 ms outside Game Mode. Similar differences can be seen on the Samsung JS9500, JS9000 and JU7100, as well as several LG models.

Some TVs showed little difference between the two modes. The LG LF5600, Samsung J4000 and Sharp LE653U had almost identical results with and without Game Mode.

European TV models

European versions often used different model numbers from their US counterparts. The LG models in the European list, for example, use designations such as LF540V, LF560V and LF652V.

TV modelGame Mode input lag (ms)Outside Game Mode (ms)
LG LF540V28.431
LG LF560V29.829.8
LG LF652V35.938.8
LG EC930V40.7106
LG LF580V49.7149.8
LG LF652V50149
LG LF630V50120
LG UF770V6060
LG UF680V6064
Samsung JU750021120
Samsung JS950024155
Samsung JS900024140
Samsung JU710026128
Samsung JU650026.5119
Samsung JS700028122
Samsung JU670028117
Samsung JS850037118
Samsung J40003939
Samsung J55004092
Samsung J62004565
Samsung J630045128
Sony R510C4647
Sony X900C3572
Sony W850C3655
Sony X830C3774
Sony W800C3854
Sony X930C3869
Sony X850C4064
Sharp LE653U3535
Sharp UH30U4662
Sharp UB30U80147

The European table contains the corresponding measurements recorded for the models listed in the original 2015 data. Model names can differ between regions even when TVs belong to the same product family.

What the 2015 results show

The measurements demonstrate why Game Mode was important for gaming on TVs of that period. On many models, disabling Game Mode resulted in considerably higher input lag because the TV continued to apply additional image processing.

Samsung models in particular show a large difference between the two modes. Several models had input lag below 30 ms in Game Mode while exceeding 100 ms outside Game Mode. LG also had models with a significant difference between the two settings.

The results were not the same for every TV. Some models had relatively low input lag regardless of the selected mode, while others remained comparatively slow even with Game Mode enabled.

Input lag should therefore be considered together with the picture mode and other test conditions. A single number does not necessarily describe how a TV will perform in every configuration.

About the measurements

These figures are historical measurements for selected TV models released around 2015. They should not be interpreted as current input-lag specifications or used to compare these TVs with modern models.

Different testing methods can produce slightly different results. Input lag can also change depending on the resolution and refresh rate of the input signal, picture mode, firmware and other TV settings.

The main purpose of this list is to preserve the measured input-lag results for 2015 LG, Samsung, Sony and Sharp TVs and show how much Game Mode could affect their performance.

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