LG UltraGear 27GX790B-B 27" QHD 540Hz RGB Tandem OLED Gaming Monitor

- 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® compatibility  AMD FreeSync™ Premium Pro
- Virtually borderless 27" OLED with adjustable screen and back lighting for a custom setup

Outrageous Speed with LG's Brightest OLED Gaming Monitor

Experience the brightness and speed of 4th Gen OLED on a vivid 27" QHD display-engineered for ultra-smooth, tear-free gameplay. With a refresh rate up to 720Hz* and lightning-fast 0.02ms response time, you'll react faster, track every movement with precision, and outpace your opponents frame by frame with astounding brightness, clarity and speed.

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

LG's Brightest, Boldest OLED Gaming Monitor

Powered by UltraGear's latest OLED with Primary RGB Tandem tech, this is LG's brightest OLED gaming monitor yet-reaching 335 nits typical brightness for clear visibility in bright scenes. Enhanced APL and reduced ABL keep critical visuals sharp during intense action, while UL Verified Perfect Black* and DisplayHDR™ True Black 500 deliver deep contrast and pinpoint detail.

*This 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.

Next-Gen OLED Brilliance

4th Gen Primary RGB Tandem OLED reaches 335 nits typical brightness while using less power than previous UltraGear™ OLED generations. The display's advanced 4-stack RGB structure delivers enhanced contrast, sharper detail, and color precision that stays consistent across every frame.

Dual Mode: QHD 540Hz for Detail or HD 720Hz for Speed

Dual Mode pushes gaming speed to the edge, letting you toggle between QHD resolution at 540Hz or HD at 720Hz* from a hotkey. Gain outrageous speed and responsiveness for split-second decisions and competitive domination.

*Requires 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.

DisplayPort 2.1 Delivers Next-Gen Gaming Speed

DisplayPort™ 2.1 unlocks ultra-fast data speeds for stable, high-refresh gaming up to 720Hz. USB-C keeps your setup clean with single-cable output, and dual HDMI 2.1 ports connect seamlessly to today's top consoles. More bandwidth. More clarity. More ways to win.

A virtually instantaneous 0.02 response time (GtG)

The ultra-fast 0.02 response time (GtG), reducing reverse ghosting and providing fast response time, lets you to enjoy a whole new gaming performance.

NVIDIA® G-SYNC® Compatible & AMD FreeSync™ Premium Pro

NVIDIA® G-SYNC®* Compatible and AMD FreeSync™ Premium Pro deliver smooth, tear-free, low-latency gaming with high refresh rates-so every frame stays fluid and sharp.

*NVIDIA® 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.

UL-verified for a "perfect" visual experience

- Perfect Black: UL-verified Perfect Black delivers true black levels to enhance perceived brightness and contrast, whether it's bright or dark around you.
- Perfect Color and 100% Color Fidelity- UL verified to deliver accurate color expression even under varying lighting conditions, from low light to bright ambient environments.
- UL-verified Perfect Reproduction delivers that actual game content is faithfully rendered on screen, maintaining intended color and detail in both dark and bright environments. Unlike static image-based metrics, this certification reflects real-world content

Deeper Detail with VESA DisplayHDR™ True Black 500

Experience breathtaking realism with VESA DisplayHDR™ True Black 500, delivering nuanced shadow detail and rich black expression-even in the darkest game scenes. A 1.5 million:1 contrast ratio pairs with up to 99.5% (typical), DCI-P3 color gamut and Delta E≤2 color accuracy, to ensure colors are vivid, precise, and true to the creator's intent-giving gamers and creators alike the confidence to see every frame as it was meant to be seen.

Five UL Certifications. One Clear Advantage for Eye Comfort.

This UltraGear™ OLED display is five times UL-certified*-for Anti-Glare, Flicker-Free, Low Blue Light, Reduced Blue Light, and Reduced Circadian Stimulating Blue Light. Combined with a matte anti-glare finish, the display helps reduce distractions, keep your view crisp, and maintain visual comfort-so you can stay focused and perform at your best, even during extended gaming sessions.

*LG 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).

ClearMR 21000 Delivers Elite Motion Clarity

Certified at ClearMR 21000-VESA's highest motion-clarity tier-this display eliminates the faint blur that lingers around fast-moving objects. Every rapid turn, sprint, and effect stays crisp, helping you react faster and play with greater confidence.

Unlock Your Potential with Advanced Gaming Features

- Dynamic Action Sync reduces input lag for real-time response
- Black Stabilizer brightens dark scenes to see what's hidden
- FPS Counter shows your real-time frame rate
- Crosshair enhances precision for shooting accuracy

Personalize Your Display with Switch App

With the LG Switch app*, easily optimize your monitor for gaming or everyday use. Adjust brightness, fine-tune image quality, apply settings with a hotkey, split the screen into 11 layouts, and launch video calls in a click.

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

4-Pole Jack &  DTS HP:X: Gaming Audio Unleashed

Experience lifelike 3D audio with DTS Headphone*, pushing out spatial sound to make you feel even more part of the game. The 4-pole headphone jack combines stereo audio and mic input, delivering crisp sound and clear game-play comms through a single connection.

*Headphones 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.

Virtually Borderless and Adjustable to Gamer Specs

Dive into gameplay on the 4-side, virtually borderless 27" OLED screen. The slim-profile display has adjustable height, tilt, swivel and pivot controls that let you customize your view, while backlighting amps up your battle station, making every session a vibe.

Versatile Connectivity

Versatile connectivity hub: Dual HDMI, DisplayPort 2.1, and USB downstream (x2) and USB upstream ensure seamless connections to all your devices, from consoles and peripherals to productivity gear.