ULMB 2: what is it and how does Nvidia’s technology work?

Reducing the motion blur effect is a constant concern for gamers as it can affect visual quality and in-game performance. implemented by Nvidia ULMB (Ultra Low Motion Blur) G-Sync has been on monitors since 2015 to minimize this blur. Now, the company is developing ULMB 2An enhanced version of this technology, presented in May.

According to Nvidia, ULMB 2 is Sharpening with more than 1000Hz effective movement, but only on 1440p, 360Hz G-Sync monitors for now. This means players no longer have to choose between having a more responsive refresh rate or reducing motion blur.

This improvement is especially true for monitors with high refresh rates such as 360 Hz, which are commonly used in professional gaming setups. The visual demo clearly highlights the difference by showing a noticeable reduction in motion blur when comparing the motion of a vehicle with ULMB 2 on and off in Fortnite:

How does ULMB2 work?

The ULMB 2 system uses a technique called “Vertical Dependent Overspeed”, which provides a perfectly timed vertical scan by synchronizing the backlighting of the LCD panel with the portion of the image where the pixels are moving. This enhancement provides greater than 1000Hz, smoother motion and effective motion sharpness without sacrificing screen brightness.

Currently, there are only two monitors with ULMB 2 support available: Acer Predator XB273U F and Asus ROG Swift PG27AQN. Two more models will be launched soon, one from Asus and the other from AOC.

More compatible monitors are expected to be released in the second half. If you have one of these models, the technology can be enabled for free with a new firmware update.