Resolution 4k At 144 Hz display rate is simply too much information for the latest video standards - and this creates a need for compression of information which may impair the quality of the end result
after Promises, delays and a considerable wait Reached a pair of screens that were supposed to be the pinnacle of middle-aged gamers - Isser's Predator X27 And the Asus ROG Swift PG27UQ, Both AU Optronics breakthrough panel-based 27-inch size, 3,840 × 2,160 pixel resolution, up to 144 Hz refresh rate with support forG-SYNC AndHDR With a maximum brightness of over 1,000 Nit. Due to 384 different illumination points, covering all the DCI-P3 color gamut using quantum dots to improve quality.
The perfect quality for supposedly gaming enthusiasts, and premium prices of 2,000 dollars and above that should justify it - but in practice these models seem to run into the capability of modern display standards, thus having to find original methods to work around the problem and meet technical promises.
DisplayPort 1.4, the most advanced and up-to-date display on the screens in question (and in fact on most modern screens), is capable of transmitting a maximum bandwidth of 26 gigabits per second and a resolution image 4k Up to 120 refresh rate by device - which is not enough to transmit 4k At the 144 run rate without any compression. What Acus and Acer chose to do is to reduce the color subset of the image, or chroma subsampling, from a full 4 level to 4: 4: 4, which means half the resolution in the horizontal axis, The shrunk.
This method (and even its extreme) is a recognized component of all known compression methods for transmitting information on the network, but is not as common and common when viewing local content on your PC, with the available bandwidth usually being larger than the uncompressed volume of data - and now claims that usage The reduced color sampling results in a blurry display of certain elements in the same state-of-the-art super-screens, both on the desktop and in the various games, while trying to play them at the maximum resolution and refresh rate available. In other words, instead of getting the sharpest and most accurate image quality imaginable - a lesser quality result is less accurate than a display 4k At a refresh rate of 120 Hz (or less).
Not sure all users will notice the differences in question and all applications, but they will certainly find a good reason to be disappointed and even annoyed by a bug that is not officially declared anywhere - and so on its face it will have no fix for these models. Future screens can contain HDMI 2.1 connections, the only public device currently configured to support bandwidth that will allow real 4K144 display without any compression, or alternatively support for DSC (RSA Display Stream Correction) protocolDisplayPort 1.4 that purports to provide more effective compression that is indistinguishable from the original - but it is highly doubtful that we will detect backward compatibility of this fresh compression on Predator X27 andROG Swift PG27UQ.
So if you also dream of super-resolution gaming and a tremendous display rate - you might want to keep dreaming some more, until the arrival of the second generation who knew how to correct and avoid the cutting edge mistakes that are being discovered in retrospect.