1440p @ 120 Hz: 10.0 ms

Excellent low input lag across all input resolutions and refresh rates, as long as 'Game Mode' is activated. The 1080@120 Hz input lag is exceptionally low, which is great for Xbox One X gamers, as the Xbox One X will soon support 120Hz @ 1080p and at 1440p.

2018 Samsung TVs including the QLEDs and the NU8000 support 'Game Motion Plus', which interpolates lower frame rate games up to 120 Hz while in 'Game Mode'. This feature causes a small increase in input lag. When interpolating up to 60 Hz input lag is 20.8 ms, and when interpolating up to 120 Hz it is 26.6 ms. This is still low and most games should feel responsive.

The NU8000 and the Samsung 2018 QLEDs added support for Auto Game Mode. When it is enabled from the input menu, the TV will automatically switch to Game Mode when it detects a game being played on a console. We tested it on a PS4 and Xbox One S and it worked perfectly.

Update 06/08/2018: The input lag with VRR has been tested and added to the review.

Update 06/11/2018: 1440p @ 120 Hz performance has improved as of firmware version 1103. The 1440p @ 120 Hz input lag is now 10.0 ms, down from 25.0 ms.