LG - UltraGear 27" OLED Dual Mode (QHD 540Hz, HD 720Hz) 0.02ms G-SYNC Compatible, AMD FreeSync Premium Pro Gaming Monitor - Black
Highlights
- Key Specs
- Refresh Rate: 540Hz (The number of frames per second the device can produce natively without enhancement. Higher rates help produce smooth, seamless pictures.)
- Maximum Resolution: 2560 x 1440 (Maximum resolution refers to the highest number of pixels that a screen can process and display. Higher resolution signals produce more detailed images.)
- Response Time: 0.02 milliseconds (The speed at which pixels can change colors is called response time. It is measured in milliseconds (ms).)
- Panel Type: Not Applicable, Not Applicable, Not Applicable, Not Applicable, Not Applicable (Technology that affects response time and image quality.)
- Synchronization Technology: G-SYNC Compatible (NVIDIA Adaptive Sync), FreeSync Premium Pro (AMD Adaptive Sync) (Generally, these technologies allow syncing between a computer/console game's frame rate and the device's refresh rate for a smoother display without tearing.)
- Screen Size: 27 inches (Size of the screen, measured diagonally from corner to corner.)
- Display Connector(s): 1 x DisplayPort 2.1, 2 x HDMI 2.1 (The number and type of connectors used to connect to an external display.)
- General
- Brand: LG
- Model Number: 27GX790B-B
- Product Name: UltraGear 27" OLED Dual Mode (QHD 540Hz, HD 720Hz) 0.02ms G-SYNC Compatible, AMD FreeSync Premium Pro Gaming Monitor
- Color: Black
- Operating System Compatibility: Not Applicable, Not Applicable, Not Applicable, Not Applicable, Not Applicable
- Display
- Refresh Rate: 540Hz (The number of frames per second the device can produce natively without enhancement. Higher rates help produce smooth, seamless pictures.)
- Maximum Resolution: 2560 x 1440 (Maximum resolution refers to the highest number of pixels that a screen can process and display. Higher resolution signals produce more detailed images.)
- Native Resolution: 2560 x 1440 (Native resolution of a screen refers to its single, fixed resolution. Sometimes screens must scale an image up or down in order to fit the native resolution. This can cause a loss of resolution or detail.)
- Contrast Ratio: 1,500,000:1 (Measured difference between a displayed image's brightest whites and darkest blacks. The larger the first number, the more detail and color that can be displayed.)
- Response Time: 0.02 milliseconds (The speed at which pixels can change colors is called response time. It is measured in milliseconds (ms).)
- Display Type: OLED
- Panel Type: Not Applicable, Not Applicable, Not Applicable, Not Applicable, Not Applicable (Technology that affects response time and image quality.)
- Synchronization Technology: G-SYNC Compatible (NVIDIA Adaptive Sync), FreeSync Premium Pro (AMD Adaptive Sync) (Generally, these technologies allow syncing between a computer/console game's frame rate and the device's refresh rate for a smoother display without tearing.)
- Aspect Ratio: 16:9 (The measurement of the width of a screen compared to the height of a screen, expressed as a ratio.)
- Curved Screen: false
- Brightness: 335 candela per square meter (A measure of the total light output.)
- Screen Size: 27 inches (Size of the screen, measured diagonally from corner to corner.)
- High Dynamic Range (HDR): true (An HDR-compatible 4K TV or other HDR-compatible product displays HDR video content when it's available from sources like 4K Ultra HD Blu-ray Discs and 4K streaming services.)
- High Dynamic Range Format: VESA Certified DisplayHDR 500 True Black, HDR 10 (There are a few HDR formats that tell the TV or other HDR-compatible product how to best utilize its capabilities to display HDR content. HDR technology can support one or multiple formats, each with various benefits to picture quality.)
- Connectivity
- Number of DisplayPort Inputs (Total): 1
- Number of HDMI Inputs (Total): 2
- Display Connector(s): 1 x DisplayPort 2.1, 2 x HDMI 2.1 (The number and type of connectors used to connect to an external display.)
- Number of USB Ports (Total): 3
- USB Ports: 1 x USB-C, 2 x USB-A 3.0 (The number and type of USB ports the product has.)
- Headphone Jack: true (The device features an interface that allows for the connection of headphones.)
- Compatibility
- Wall Mountable: true (The product is able to be secured to a wall. Some products are designed ready to mount, while others may require additional hardware/accessories for installation.)
- VESA Wall Mount Standard: 100mm x 100mm (VESA wall mount standards refer to the spacing of screw holes built into a TV in order to fit with standard TV wall mounts. These standards are implemented into most TVs and monitors.)
- Features
- Tiltable: true
- Adjustable Stand Height: true
- Built-In Webcam: false
- Integrated Speaker(s): false
- Dimensions
- Product Height With Stand: 20.8 inches
- Product Height Without Stand: 13.8 inches
- Product Width: 23.8 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Depth (With Stand): 8.7 inches
- Product Depth Without Stand: 2 inches
- Product Weight: 15 pounds (The out of box weight of the item.)
- Stand Included: true
- Certifications Listings & Approvals
- ENERGY STAR Certified: false (Devices carrying the ENERGY STAR service mark, such as computer products and peripherals, kitchen appliances, and other products, generally use 20% to 30% less energy than required by federal standards.)
- EPEAT Qualified: false (The Electronic Product Environmental Assessment Tool (EPEAT) was designed to provide an environmental assessment tool for purchasers. In order to qualify for EPEAT, a product must meet all 23 required criteria.)
- Warranty
- Warranty - Parts: 2 Year Parts and Labor
- Warranty - Labor: 2 Year Parts and Labor
- Other
- UPC: 195174137055
The LG UltraGear OLED 27GX790B is built for gamers who want every visual and competitive advantage. UltraGear's 27-inch 4th Generation OLED QHD resolution display delivers pinpoint clarity with UL Verified Perfect Black and Perfect Color¹, exposing incredible detail and nuanced highlights. VESA DisplayHDR True Black 500 adds deeper contrast and controlled brightness, giving gamers a sharper read on enemies, environments, and effects in every gaming scenario. Speed is where this UltraGear OLED separates itself from others. Dual Mode² gives gamers two elite paths to victory: a 540Hz refresh rate at QHD resolution for high-resolution precision or 720Hz at HD for pure, unleashed speed. Paired with a near-instantaneous 0.02ms response time, motion stays clean and fast—ideal for tracking targets, reacting faster, and winning close engagements. Your frames stay stable under pressure with NVIDIA G-SYNC compatibility and AMD FreeSync Premium Pro³, delivering tear-free, low-latency performance. VESA Certified ClearMR backs it up with verified motion-blur clarity, keeping visual noise out of the fight. For next-gen setups, DisplayPort 2.1 ensures maximum bandwidth for high refresh rates and smooth data flow. A 4-pole headphone jack supports game audio and comms through one connection. And with full ergonomic control—height, tilt, swivel, and pivot—you can dial in your perfect competitive setup. The 27GX790B delivers elite OLED performance, breakthrough speed, and incredible performance built for players who refuse to settle.
- 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.
- Our 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.
- 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.
- 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.
- 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. 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.
- 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-certified⁴—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.
- 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 app⁵, 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.
- 4-Pole Jack & DTS HP:X: Gaming Audio Unleashed: Experience lifelike 3D audio with DTS Headphone⁶, 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.
- 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.
Whats Included
- Monitor
- Power Cable
- Display Port Cable (ver 2.1)
- HDMI Cable (ver 2.1)
Disclaimers
- ¹This 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.
- ²Requires 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.
- ³NVIDIA 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.
- ⁴LG 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).
- ⁵To download the latest version of the LG Switch app, visit LG.com
- ⁶Headphones 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.
Q: What is the typical brightness of this OLED gaming monitor?
A: The typical brightness of this OLED gaming monitor is 335 candela per square meter.
Q: Are the height of the stand adjustable?
A: Yes, the stand height is adjustable.
Q: Does this monitor have G-SYNC compatibility?
A: Yes, this monitor is NVIDIA G-SYNC compatible.
Q: What is the maximum refresh rate in HD mode?
A: The maximum refresh rate in HD mode is 720Hz.
Q: Does this monitor support wall mounting?
A: Yes, this monitor supports wall mounting.
Q: How many HDMI ports does this monitor have?
A: This monitor has two HDMI ports.
Q: What is the response time of this gaming monitor?
A: The gaming monitor has a 0.02ms response time.
Q: When can i buy this at Best buy. I really need a monitor now
A: Hello there, Lotus. Thank you for sharing your question with us. We understand your inquiry regarding the availability of the 27GX790B-B at Best Buy. Because our authorized retailers manage their own individual inventory levels, restock schedules, and shipping timelines, the best way to get a precise date for when they will have this unit ready for purchase is to contact Best Buy directly or monitor their official website for real-time updates. They will be best equipped to provide you with specific information regarding in-store pickup or delivery options for your specific location. https://www.bestbuy.com/product/lg-ultragear-27-oled-dual-mode-qhd-540hz-hd-720hz-0-02ms-g-sync-compatible-amd-freesync-premium-pro-gaming-monitor-black/JJ8VPZKKG3 If you have any further questions about its features or specifications, please contact us on [email protected], and our team will be more than happy to assist you. —Renzo
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The LG UltraGear OLED 27GX790B is built for gamers who want every visual and competitive advantage. UltraGear's 27-inch 4th Generation OLED QHD resolution display delivers pinpoint clarity with UL Verified Perfect Black and Perfect Color¹, exposing incredible detail and nuanced highlights. VESA DisplayHDR True Black 500 adds deeper contrast and controlled brightness, giving gamers a sharper read on enemies, environments, and effects in every gaming scenario. Speed is where this UltraGear OLED separates itself from others. Dual Mode² gives gamers two elite paths to victory: a 540Hz refresh rate at QHD resolution for high-resolution precision or 720Hz at HD for pure, unleashed speed. Paired with a near-instantaneous 0.02ms response time, motion stays clean and fast—ideal for tracking targets, reacting faster, and winning close engagements. Your frames stay stable under pressure with NVIDIA G-SYNC compatibility and AMD FreeSync Premium Pro³, delivering tear-free, low-latency performance. VESA Certified ClearMR backs it up with verified motion-blur clarity, keeping visual noise out of the fight. For next-gen setups, DisplayPort 2.1 ensures maximum bandwidth for high refresh rates and smooth data flow. A 4-pole headphone jack supports game audio and comms through one connection. And with full ergonomic control—height, tilt, swivel, and pivot—you can dial in your perfect competitive setup. The 27GX790B delivers elite OLED performance, breakthrough speed, and incredible performance built for players who refuse to settle.
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| Pros for LG - UltraGear 27" OLED Dual Mode (QHD 540Hz, HD 720Hz) 0.02ms G-SYNC Compatible, AMD FreeSync Premium Pro Gaming Monitor - Black | |||
|---|---|---|---|
| There were no pros for this product— | Refresh Rate, Resolution, Overall Performance, OLED Quality | There were no pros for this product— | Refresh Rate, Resolution, Color Quality, Gaming Performance, Responsiveness |
| Cons for LG - UltraGear 27" OLED Dual Mode (QHD 540Hz, HD 720Hz) 0.02ms G-SYNC Compatible, AMD FreeSync Premium Pro Gaming Monitor - Black | |||
| There were no cons for this product— | Brightness | There were no cons for this product— | There were no cons for this product— |
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