Display Uniformity and Power Usage

Especially with localized dimming, the PG27UQ's panel uniformity was solid. In the default out-of-the-box configuration (FALD enabled), the maximum local difference of white levels is around 5% of the center brightness.

Black levels were more uneven, with a general trend of brighter blacks towards the top and darker blacks towards the bottom.

Color reproduction across the panel, however, is excellent, and virtually imperceptible between different parts of the display.

Power Use

As far as power usage goes, the PG27UQ has been specified for a peak 180W with HDR on. Stand-by was specified at 0.5W, but in practice the monitor often idled for some time around 27W in the power-off mode, before finally going to sub-1W power draw. The fan is on at that time, and it's not exactly clear how this state is governed.

Power Draw (Wall Measurements)

With G-Sync and HDR enabled, peaks of around 150W to 160W were observed during gaming, with a peak of 162W. In SDR mode, power consumption is more-or-less in line with typical monitors.

HDR Gaming Impressions Closing Thoughts
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  • Ethos Evoss - Monday, December 28, 2020 - link

    That's really bad as there is no any product which support DP 2.0 so we stucked with DP 1.4 with fake 144Hz So all monitors and TVs are obsolete... Only laptops which has 144 or 240 or 300Hz has real refresh rate as there is no any HDMi or DP but nobody talking about eDP (embeded display port) which is in laptops and which is in reality supported up to 120Hz so how on earth they making laptops with 144Hz or 240 or even 300Hz ???

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