Gaming: response time and input lag
We show, in a manner of experiment, both the rise and fall times separately, as well as the combined values. We also show the maximum and optimal overdrive results. The optimal overdrive values are combined rise / fall response times of 16 ms or lower with an overshoot that is as low as possible. In other words: a response time of 4 ms and an overshoot of 60% is in our opinion worse than a response time of 15 ms combined with an overshoot of 5%. After all, overshoot and undershoot result in annoying artefacts around moving parts of the image, mainly with contrast-rich gradients you can see thick white or black edges. In our opinion, these are worse than light ghosting.
With non-gaming monitors we only test the combined rise- and fall-times in the standard mode and with optimal overdrive-settings; on the product pages you can always find all sub- and detail measurements.
Directly out-of-the-box the Acer Predator Z35P clearly has a more aggressive profile in terms of overdrive when compared with the AOC Agon AG352UCG, which means that the response times are a lot lower. The maximum overdrive for the Acer results in lower times as well, but the difference is a lot smaller, less than 1 ms. The overshoot is an unacceptably high 41, respectively 42 percent. The optimum was reached with the 'Normal' setting on the Acer and 'Medium' on the AOC. In both cases there is a clear case of overshoot, but the response times are very low. With an overdrive that is even lower the grey-grey response times are too high, especially for 120 Hz refresh rate (1000/120 is 8.33 ms, which the Z35P does not achieve without overdrive, 1000/100 is 10 ms, which the AOC also does not achieve without overdrive).
Response times standard
Response times maximum
Response times optimal
There is no noticeable input lag with either of these monitors.