LG has brought its UltraGear 27GX790B-B to North America following its China debut. The 27-inch gaming monitor uses LG Display’s 4th Gen Primary RGB Tandem OLED panel.
The monitor’s headline feature is a 720Hz refresh rate. The 720Hz mode requires dropping resolution to 720p. At native 1440p, the refresh rate drops to 540Hz, which is still among the fastest available commercially.
LG equips the 27GX790B with a Primary RGB Tandem WOLED panel designed for competitive gaming, particularly first-person shooters like Counter-Strike 2. Response time measures 0.02ms. The panel delivers 335 nits peak brightness in SDR mode and 1500 nits in HDR, carrying DisplayHDR True Black 500 certification. Color coverage reaches 99.5 percent of the DCI-P3 gamut.
The display includes an adjustable stand with RGB lighting on the back panel. Ports include HDMI 2.1, DisplayPort 2.1, one USB-C, two USB-A, and a 3.5mm audio jack.
While manufacturers develop prototype displays targeting 1,000Hz refresh rates, current top-tier gaming monitors max out around 540Hz at higher resolutions. The 27GX790B’s dual-mode approach lets users choose between maximum refresh rate and resolution based on their priorities.
The monitor targets esports players who prioritize frame delivery over resolution. The 720p mode’s 720Hz refresh reduces input lag to under 1.4ms per frame, while 1440p at 540Hz maintains 1.85ms frame time. These specifications matter most in competitive scenarios where millisecond differences affect performance.
LG has listed the UltraGear 27GX790B-B at $999.99 on Amazon for US customers. Canadian buyers can preorder the monitor for CA$1,299.99, with deliveries starting January 15, 2026.
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