27 Inch UltraGear™ OLED Dual Mode QHD 540Hz or HD 720Hz 0.02ms G-Sync® Compatible DisplayPort 2.1 Gaming Monitor

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27GX790B-B
LG 27GX790B-B UltraGear OLED Gaming Monitor displaying dynamic orange light trails with #1 OLED Gaming Monitor Brand badge - Front View
LG 27GX790B-B 27 Monitor – Front View with Digitial Trends Readers Choice Awards Badge
LG 27GX790B-B 27 Monitor – LG UltraGear's Brightest OLED Gaming Monitor Primary RGB Tandem Technology OLED
Premier Deal
Best Seller
LG 27GX790B-B UltraGear OLED Gaming Monitor displaying dynamic orange light trails with #1 OLED Gaming Monitor Brand badge - Front View
Premier Deal
Best Seller
LG 27GX790B-B UltraGear OLED Gaming Monitor displaying dynamic orange light trails with #1 OLED Gaming Monitor Brand badge - Front View
LG 27GX790B-B UltraGear OLED Gaming Monitor displaying dynamic orange light trails with #1 OLED Gaming Monitor Brand badge - Front View
LG 27GX790B-B 27 Monitor – Front View with Digitial Trends Readers Choice Awards Badge
LG 27GX790B-B 27 Monitor – LG UltraGear's Brightest OLED Gaming Monitor Primary RGB Tandem Technology OLED

27 Inch UltraGear™ OLED Dual Mode QHD 540Hz or HD 720Hz 0.02ms G-Sync® Compatible DisplayPort 2.1 Gaming Monitor

27GX790B-B
27GX790B-B
LG 27GX790B-B UltraGear OLED Gaming Monitor displaying dynamic orange light trails with #1 OLED Gaming Monitor Brand badge - Front View
LG 27GX790B-B 27 Monitor – Front View with Digitial Trends Readers Choice Awards Badge
LG 27GX790B-B 27 Monitor – LG UltraGear's Brightest OLED Gaming Monitor Primary RGB Tandem Technology OLED
Premier Deal
Best Seller
LG 27GX790B-B UltraGear OLED Gaming Monitor displaying dynamic orange light trails with #1 OLED Gaming Monitor Brand badge - Front View
Premier Deal
Best Seller
LG 27GX790B-B UltraGear OLED Gaming Monitor displaying dynamic orange light trails with #1 OLED Gaming Monitor Brand badge - Front View
LG 27GX790B-B UltraGear OLED Gaming Monitor displaying dynamic orange light trails with #1 OLED Gaming Monitor Brand badge - Front View
LG 27GX790B-B 27 Monitor – Front View with Digitial Trends Readers Choice Awards Badge
LG 27GX790B-B 27 Monitor – LG UltraGear's Brightest OLED Gaming Monitor Primary RGB Tandem Technology OLED

Key features

  • Experience UltraGear's brightest and fastest OLED on a 27" QHD display
  • Dual Mode refresh rate: switch between QHD at 540Hz or 720Hz HD speed³
  • 0.02ms (GtG) response time renders fast action with almost zero blur or ghosting
  • DisplayPort 2.1 delivers massive bandwidth for sharper visuals and ultra-fast gameplay
  • DisplayHDR™ True Black 500 delivers deep blacks, rich contrast, and stunning dark-scene detail
  • Reduced screen stutter with NVIDIA® G-SYNC®⁴ compatibility AMD FreeSync™ Premium Pro
  • Virtually borderless 27” OLED with adjustable screen and back lighting for a custom setup

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Circana, LLC, Retail Tracking, Monitors, Gaming Designed, Display Type: OLED, Dollars, Jan - Dec 2025

1Requires graphics card that supports 720Hz refresh rate support (HD).  Actual refresh rates may vary depending on computer graphics specifications and configurations.

2This LG OLED panel has been certified with “Perfect Black”, “Perfect Color with 100% Color Fidelity” and “Perfect Reproduction”. Certificate Number: Perfect Black (OLED)- V183632, Perfect Color V569367 – “Perfect Reproduction” V756760 by UL.

3Requires graphics card that up to 720Hz refresh rate support (Full HD).  Actual refresh rates may vary depending on computer graphics specifications and configurations. Graphics card available separately.

4NVIDIA® G-SYNC® Compatible supports variable refresh rate on GeForce GTX 10 Series and higher GPUs on Display Port, and GeForce RTX 30 Series and higher GPUs on HDMI 2.1.

5LG OLED panels have been certified as Flicker-Free, Discomfort Glare Free, Low Blue Light, Verified Reduced Blue Light and Verified Reduced Circadian Stimulating Blue Light by UL. Certificate Number: Flicker Free Display (OLED)- A196009, Discomfort Glare Free - V563481 (conditions of UGR less than 22), Low Blue Light Hardware Solution Platinum - V745051. Verified for reduced circadian stimulating blue light (V745354). Verified for reduced blue light (V275741).

6To download the latest version of the LG Switch app, visit LG.com

7Headphones sold separately. For DTS patents, see http://patents.dts.com. Manufactured under license from DTS, Inc. or its affiliates. DTS trademarks and logos are registered trademarks or trademarks of DTS, Inc. in the United States and other countries. ALL RIGHTS RESERVED.


Images may be simulated and dramatized for illustrative purposes. Actual features, functionality, and other product specifications may differ and are subject to change without notice. Prices, promotions, and availability may vary by model, store, and online. Prices subject to change without notice. Quantities are limited. Check with your local retailers for their final price and availability.

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