27" UltraGear? OLED 480Hz QHD Gaming Monitor
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
Our brilliant UltraGear? monitor with Micro Lens Array+ technology boasts a brighter OLED with a peak brightness of 1300 nits and an astonishing 480Hz refresh rate, one of the fastest in the world. Even in the darkest gaming scenes, it delivers detailed black depth expression, while its high aspect ratio and wide colour gamut bring vibrant colours to life, offering an unrivaled gaming experience.
*SDR brightness is 37.5% brighter than previous OLED monitors with MLA, 27GR95QE, 45GR95QE based on published specifications.
Superfast OLED, 480Hz and 0.03ms (GtG)
Our UltraGear? OLED monitor delivers unmatched power with a 480Hz refresh rate, offering ultra-smooth visuals and a 0.03ms (GtG) response time for crisp, ghost-free gameplay that gives you a competitive edge.
Racing game scene of extremely fast 0.03ms (GtG) response and a rapid 480Hz refresh rate.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
The latest DisplayPort 2.1, sets a new standard for next-generation gaming. It is an advanced interface expected to be introduced with the next generation of GPUs, enabling high-speed gaming at 480Hz in QHD resolution. Additionally, with multi-ports like HDMI 2.1 x2, it seamlessly connects to the latest consoles and PCs.
The wide bandwidth of DP 2.1 cables enables high-speed gaming at 480Hz at QHD resolution.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*DP, HDMI, and USB cables are included in the package.
*The graphics card is NOT included in the package.
*Important Update: NVIDIA has released the GeForce Hotfix Display Driver 576.26 (April 28, 2025) to resolve screen blackouts when connecting to DisplayPort 2.1 on NVIDIA RTX 50 series GPUs. NVIDIA GPU users should download and install the latest display driver before connecting their DP2.1-supported monitors.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
**Among LG OLED gaming monitors with MLA+. SDR brightness is 37.5% higher than our previous models (27GR95QE, 45GR95QE) based on published specifications.
DisplayHDR True Black 400 | DCI-P3 98.5%
VESA DisplayHDR True Black 400 delivers deep and consistent black levels that remain unchanged across various environments. With a 1.5M contrast ratio, DCI-P3 98.5% (typical) colour gamut, and Delta E ≦2 colour accuracy ensures that colours are displayed with realistic detail, just as originally intended.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*1.5m:1 is the contrast ratio at 25% APL (Average Picture Level) value which is given as a percentage and refers to the value between the black level and the reference level for white.
Anti-glare & Low reflection
There's no need to worry about screen glare if you're in a dimly lit room. Even in bright environments or LED-lit gaming rooms, you can enjoy uninterrupted, crystal-clear visuals with Anti-glare and Low Reflection technology.
Low Blue Light
Experience gaming freely with reduced harmful blue light. LG WOLED utilises advanced technology that reduces blue light levels while preserving vivid and lifelike colours certified by UL for low blue light platinum, allowing vivid game colours for a more comfortable viewing experience.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*LG OLED panels have been certified as Flicker-Free, Discomfort Glare Free, and Low 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.
*The above feature may vary depending on the user’s computing environment or conditions.
Personalised Picture Wizard
Upgrade your gaming and video experience with settings tailored to your preferences, simply by selecting an image. Intuitively and effortlessly, the system customises the settings to match your taste, delivering the optimal quality for you.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*How to set Personalised Picture Wizard: Step1. Adjust to the personalised picture quality setting. (Run LG Switch app → Personalised Picture Wizard → Select quality preference through 6 steps → Complete personal quality setting through analysis). Step2. Run Personalised Picture in the On-Screen Display. (Game Adjust →? Game Mode → Personalised Picture).
A medieval knight is fighting on horseback.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*The performance of the feature is compared to the models not applying the sync technology.
*Errors or delays may occur depending on the network connection.
LG GX790A is NVIDIA-tested and officially validated G-SYNC? Compatible monitor, that can give you unbelievable gaming experiences with significantly reduced tearing or stuttering.
Featuring VESA AdaptiveSync Display certification, geared towards gaming with notably higher refresh rates and low latency. Enjoy smoother, tear-free gaming visuals and jitter-free video playback.
With FreeSync? Premium Pro technology, gamers can experience seamless, fluid movement in high-resolution and fast-paced games. It significantly reduces screen tearing and stuttering.
The first OLED gaming monitor certified by ClearMR 21000, finally captures even the subtle blurring that occurs around the edges of moving objects, displaying fast-moving action with sharpness and detail. Also, it allows you to take a step closer to victory.
Image of a green car racing on a track.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
A new standard set. Our monitor is the world's first to achieve ClearMR 21000 certification, exceeding VESA testing with a Clear Motion Ratio of over 19500. Experience unparalleled clarity and smoothness.
Experience our hexagon lighting and a virtually borderless 4-sided clean design featuring a fully adjustable base with swivel, tilt, height, and pivot. A clutter-free L stand and wide-range swivel adjustment are designed to minimise desk space usage and eliminate dead space efficiently.
An image showcasing the gaming setup of the LG UltraGear OLED gaming monitor 27GX790A model.
Product image of UltraGear OLED 27GX790A gaming monitor.
-30~30°
-5~15°
110m
Clockwise
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*Headsets sold separately.
Gaming GUI
Gamers can use On-Screen Display and LG Switch to easily customise the settings from adjusting basic monitor options to registering the ‘User Defined Key’ that can be set as a shortcut.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*To download the LG Switch app, visit LG.COM.
Gaming monitor features a 27-inch display while also offering a 24-inch screen size adjustment option for games requiring quick responsiveness. This allows players to adapt to a more compact screen size for a wider view and reduced movements, enabling them to gain a competitive edge.
*How to set 24-inch mode: Open the OSD Menu → Input → Aspect Ratio and select 16:9 24.
Reducing input lag with Dynamic Action Sync, gamers can catch critical moments in real-time and respond quickly.
Black Stabiliser helps gamers to detect snipers lurking in the darkest corners and swiftly navigate flash explosions.
| The target point is fixed in the center to enhance shooting accuracy. |
The FPS Counter will let you see how well everything is loading. Whether you're editing, playing games, or watching a movie, every frame matters, and with the FPS Counter, you'll have real-time data.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*The Crosshair feature is unavailable while FPS Counter is activated.
*FPS Counter may display the value that exceeds the monitor’s maximum refresh rate.
*FPS (Frame Per Second) Counter: Measurement of frames per second.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*The software and the sensor are ?NOT included in the package. To download the latest LG Calibration Studio software, visit LG.COM.
[Option 1] Turn off the Smart Energy Saving mode.
[Option 2] Set Game Mode as Gamer 1.
[Option 3] Set Brightness to 100.
[Option 4] Set Peak Brightness as High.
[Option 1] Turn off the Smart Energy Saving mode.
[Option 2] Set Game Mode as Gamer 1.
[Option 3] Set Brightness to 100.
[Option 4] Set Peak Brightness as High.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*Power consumption may increase when the above options are chosen.
*The display burn-in may occur when any of the above options is chosen.
You can prevent occurring afterimages or display burn-in by turning on the 'OLED Screen Move', which moves the screen slightly at regular intervals, 'Screen Saver' and 'Image Cleaning'.
*This feature can be controlled or set with the 4-way joystick button on the monitor.
*It may not prevent every afterimage or display burn-in with this method.?
Resolution
2560 x 1440
Panel Type
OLED
Aspect Ratio
16:9
Color Gamut (Typ.)
DCI-P3 98.5% (CIE1976)
Refresh Rate (Max.) [Hz]
480
Response Time
0.03ms (GTG)
Display Position Adjustments
Tilt/Height/Swivel/Pivot
Product name
UltraGear
Year
Y25
Size [Inch]
26.5
Size [cm]
67.3
Resolution
2560 x 1440
Panel Type
OLED
Aspect Ratio
16:9
Pixel Pitch [mm]
0.2292 x 0.2292 mm
Color Gamut (Min.)
DCI-P3 94.0% (CIE1976)
Color Gamut (Typ.)
DCI-P3 98.5% (CIE1976)
Color Depth (Number of Colors)
1.07B
Contrast Ratio (Min.)
1200000:1
Contrast Ratio (Typ.)
1500000:1
Response Time
0.03ms (GTG)
Refresh Rate (Max.) [Hz]
480
Viewing Angle (CR≥10)
178o(R/L), 178o(U/D)
Brightness (Min.) [cd/m2]
250cd/m2
Brightness (Typ.) [cd/m2]
275cd/m2
Colour Bit
10bit
HDR 10
YES
VESA DisplayHDR?
DisplayHDR True Black 400
HDR Effect
YES
Color Calibrated in Factory
YES
HW Calibration
HW Calibration Ready
Reader Mode
YES
Color Weakness
YES
NVIDIA G-Sync?
G-SYNC Compatible
AMD FreeSync?
FreeSync Premium Pro
VRR
YES
Black Stabilizer
YES
Dynamic Action Sync
YES
Crosshair
YES
FPS Counter
YES
User Defined Key
YES
Auto Input Switch
YES
RGB LED Lighting
Hexagon Lighting
Smart Energy Saving
YES
Others (Features)
VESA DSC Tech
LG Calibration Studio (True Color Pro)
YES
Dual Controller
YES
HDMI
YES(2ea)
DisplayPort
YES(1ea)
DP Version
2.1
USB Upstream Port
YES(1ea/ver3.0)
USB Downstream Port
YES(2ea/ver3.0)
Headphone out
4-pole (Sound+Mic)
DTS HP:X
YES
Type
External Power(Adapter)
AC Input
100~240V (50/60Hz)
Power Consumption (Sleep Mode)
Less than 0.5W
Power Consumption (DC Off)
Less than 0.3W
DC Output
19V 7.37A
Display Position Adjustments
Tilt/Height/Swivel/Pivot
Wall Mountable [mm]
100 x 100 mm
Dimension with Stand (W x H x D) [mm]
605.2x579.3x249.1(up)/605.2x469.3x249.1(Down)
Dimension without Stand (W x H x D) [mm]
605.2x351.0x45.3
Dimension in Shiping (W x H x D) [mm]
820x183x532
Weight with Stand [kg]
9.3
Weight without Stand [kg]
5.1
Weight in Shipping [kg]
12.5
HDMI
YES (ver 2.1)
Display Port
YES (ver 2.1)
USB A to B
YES
Others (Accessory)
Stand body / Stand base
Adapter
YES
Calibration Report (Paper)
YES
HDMI (Color/Length)
Black / 1.8m
Power Cord
YES
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