Asus unveils 43″ 4k monitor at 144Hz without chroma subsampling via displayport

Asus unveiled the ROG Swift PG43UQ at CES. This 4k monitor has a diagonal of 43.4 “and has a refresh rate of 144Hz, where according to the manufacturer no chroma subsampling compression is applied via the displayport connection.

Asus uses VESA’s Display Stream Compression with the PG43UQ. This technology should already have been in the XG438Q, but it now appears in the PG43UQ. According to Asus, with the 4k resolution in combination with 144Hz, the full color data per pixel can be displayed, even if there is 10bit color depth in the case of HDR reproduction.

The bandwidth with a single DisplayPort 1.4 connection is still not high enough to display the images in 144Hz and 4k completely without compression, but according to Asus, dsc no longer requires chroma subsampling. For example, this was still an issue with the PG27UQ when the refresh rate exceeded 120Hz. The company says that dsc makes the signal indistinguishable from the display of a compression-less signal with the compression applied.

The PG43UQ has a va panel and supports Nvidia’s G-Sync. The monitor can provide a fairly good HDR display on paper, given the DisplayHDR 1000 label assigned. This means the monitor should also have a reasonable number of dimmable zones, but Asus doesn’t list how many there are. In addition to the displayport 1.4 connection, there are two HDMI 2.0 connections and two USB 3.0 ports. When the PG43UQ will be released and for what price is not yet known.