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LG UltraGear 27GX790A-B OLED HDR Monitor 27" QHD 2560x1440 480Hz with Response Time 0.03ms GTG
Monitors

LG UltraGear 27GX790A-B OLED HDR Monitor 27" QHD 2560x1440 480Hz with Response Time 0.03ms GTG

Key features:

  • Resolution: 2560x1440
  • Response Time (GTG): 0.03ms
  • Refresh Rate: 480Hz
  • FreeSync, G-Sync, USB Hub
  • DisplayPort, HDMI
See full description

  • Size

    The diagonal is the number used to describe the size of the screen. The most popular sizes are 24 and 27 inch screens.

  • Response Time (GTG)

    The time it takes for a pixel to change from one shade of gray to the next. A low response time provides faster response to our actions (input lag) and a cleaner image (less ghosting) which are important in gaming. Response times below 5ms are considered acceptable, but for gaming, monitors with 1ms are recommended.

  • Connection Type

    DisplayPort

    Modern way of digital transfer of image, sound and data, compatible with HDMI and DVI cables through an adapter.

    HDMI

    The type of connection used by popular gaming consoles such as Playstation 4/5, Xbox X/S, Nintendo Switch, etc. (Support for HDMI 2.1 is required for high fps and 4K resolutions.)

  • Refresh Rate

    Refers to how many times the screen image is refreshed per second. Screens with a high refresh rate offer a competitive advantage as their image is clearer (less motion blur).

    2. Typically, for office applications and simple gaming, 60-75Hz is common. In recent years, screens with 120, 144, and even 240Hz have emerged, mainly aimed at competitive gaming.

  • Type

    The technology used by the screen to display the image.

    OLED

    OLEDs offer perfect black performance, color accuracy, high contrast, and extremely fast response.
  • See all
Available purchase options
Product report

Description

Description

What's New Compared to the LG UltraGear 27GS95QE

  • Refresh Rate: The most spectacular upgrade, with the 27GX790A reaching 480Hz, doubling the speed of the 240Hz of the 27GS95QE.

  • Panel Technology: Use of the new generation WOLED (2026) with MLA+ (Micro Lens Array) technology, offering significantly higher brightness and improved viewing angles.

  • Response Time: Maintaining the instantaneous 0.03ms (GtG), which combined with 480Hz completely eliminates motion blur, surpassing even the fastest TN panels.

  • Connectivity: Integration of a DisplayPort 2.1 port in the 27GX790A, allowing data transfer for 480Hz at QHD resolution without the need for compression (DSC).

  • Protection & Cooling: New Passive Cooling 2.0 system that allows the panel to operate at higher brightness with lower risk of burn-in.

  • Incredibly fast gaming up to 480Hz & 0.03ms on a bright 27" OLED display
  • DisplayPort 2.1 bandwidth ensures ultra-smooth, fluid motion up to 480 Hz
  • Amazing and bright OLED graphics with rich color, deep black, and 1.5M:1 contrast
  • Seamless frame synchronization with FreeSync™ Premium Pro and G-Sync® for flicker-free gaming
  • Practical borderless 27" OLED with adjustable display and RGB lighting for customized setup

27" OLED Brilliance with game-changing speed up to 480 Hz

Enjoy ultra-smooth gaming with a refresh rate of up to 480 Hz and a response time of 0.03 ms on a bright 27-inch QHD OLED screen. React instantly, spot every detail, and outpace your opponents in every frame with unmatched speed and clarity.

Unleash Next-Gen Speed with Future-Ready DisplayPort 2.1

DisplayPort 2.1 offers ultra-fast data speeds for flawless 480 Hz gaming. Enjoy sharper graphics with support for higher resolution, virtually zero lag, and instant response, giving you the edge to dominate. 

Bright Image. Deep Blacks, Exceptional Detail: OLED Gaming FTW

Get lost in vivid graphics with OLED technology, providing exceptional brightness, up to 98.5% DCI-P3 color coverage, 1.5M:1 contrast ratio, and DisplayHDR True Black 400. Every gaming scene comes to life with deep blacks, brilliant highlights, and cinematic color.

Ultimate Frame Sync: FreeSync™ Premium Pro & G-SYNC® Compatible

Say goodbye to screen tearing and flickering. With compatibility for AMD FreeSync™ Premium Pro and NVIDIA® G-SYNC®, this OLED monitor offers ultra-smooth, tear-free graphics, giving you perfect frame synchronization on PC and next-gen console gaming.

Seamless and Adjustable Monitor to Player's Specifications

Dive into the game on the nearly bezel-less 27-inch OLED screen. The slim-profile monitor features adjustable height, tilt, swivel, and pivot controls that allow you to customize your view, while the hexagonal RGB backlighting enhances your battle station, making every session an atmosphere.

Up to 98.5% DCI-P3 color coverage

With up to 98.5% coverage of the DCI-P3 color spectrum, the OLED screen brings HDR games to life, offering vibrant colors for stunning visual realism in every frame.

Unlock Your Potential with Advanced Gaming Features

  • Dynamic Action Sync reduces input lag for real-time response.
  • Black Stabilizer brightens dark scenes to reveal what's hidden.
  • FPS counter shows the frame rate in real-time.
  • Crosshair enhances accuracy for deadly precision.

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

Enjoy realistic 3D sound with DTS Headphone, enhancing spatial sound to make you feel even more part of the game. The 4-pole headphone jack combines stereo sound and microphone input, providing clear sound and clear game communications through a single connection.

Low Glare, More Focus: Play Without Distractions

Stay in the zone with an OLED monitor designed to minimize glare and reflections. The anti-glare surface reduces light distractions, so you can keep your focus where it matters—on every move, every target, and every victory.

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Main Specifications

Panel
OLED

Panel

The technology used by the screen to display the image.

OLED
OLEDs offer perfect black performance, color accuracy, high contrast, and extremely fast response.
HDR
Yes

HDR

Technology of imaging aiming to preserve detail in both dark and bright areas, while providing a more natural color representation.
Curved
No

Curved

They offer a more natural viewing experience, greater image depth, and a wider field of view. 2. They help reduce eye strain. Recommended for screen sizes of 27" and above.
UltraWide
No

UltraWide

Long screens, suitable for tasks with multiple open windows, multitasking & video editing. They replace the use of multiple screens.
Diagonal
27 "

Diagonal

The diagonal is the number used to describe the size of the screen. The most popular sizes are 24 and 27 inch screens.
Resolution
2560x1440
Response Time (GTG)
0.03 ms

Response Time (GTG)

The time it takes for a pixel to change from one shade of gray to the next. A low response time provides faster response to our actions (input lag) and a cleaner image (less ghosting) which are important in gaming. Response times below 5ms are considered acceptable, but for gaming, monitors with 1ms are recommended.
Refresh Rate
480 Hz

Refresh Rate

Refers to how many times the screen image is refreshed per second. Screens with a high refresh rate offer a competitive advantage as their image is clearer (less motion blur).

2. Typically, for office applications and simple gaming, 60-75Hz is common. In recent years, screens with 120, 144, and even 240Hz have emerged, mainly aimed at competitive gaming.
Aspect Ratio
16:9

Aspect Ratio

The ratio of the width and height of the screen.

16:9
The most common aspect ratio for computer screens.

Ergonomics

Tilt Adjustment
Yes
Height Adjustment
No
Vertical Rotation
No
Horizontal Rotation
No
Wall Mountable (Vesa)
100 x 100 mm

Wall Mountable (Vesa)

Vesa is a standard for mounting brackets that describes in millimeters the (horizontal X vertical) distance between the 4 screws, e.g. 200x100 means that the screws are 10cm and 20cm apart, forming a rectangle.

Connectivity

Connection
DisplayPort, HDMI

Connection

DisplayPort

Modern way of digital transfer of image, sound and data, compatible with HDMI and DVI cables through an adapter.

HDMI
The type of connection used by popular gaming consoles such as Playstation 4/5, Xbox X/S, Nintendo Switch, etc. (Support for HDMI 2.1 is required for high fps and 4K resolutions.)

Additional Specifications

Speakers
No
Features & Functions
FreeSync, G-Sync, USB Hub

Features & Functions

FreeSync
The FreeSync technology is mainly aimed at gaming as it improves screen performance and eliminates screen tearing by synchronizing the refresh rate of the screen with AMD graphics cards.
G-Sync
The G-Sync technology is mainly aimed at gaming as it improves screen performance and eliminates screen tearing by synchronizing the refresh rate of the screen with Nvidia graphics cards.
USB Hub
The screen offers USB ports for easy connection of peripherals such as USB sticks. To operate, the screen must be connected to a USB port on the computer.
Eye Comfort
No

Eye Comfort

Monitors with built-in Eye Comfort or flicker free function or built-in blue light filter to protect your vision.
Colour
Black
Camera
No

Energy Label

Energy Consumption
25 kWh/1000h

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (4)

Reviews

5.0
4
5.0
Review this product
  1. 4
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • Comfort
  • Picture
  • Response time
  • Viewing angle
  • Menu
  • Value for money
  • Michaelbar
    5
    Michaelbar

    Verified purchase

    If you play competitive games, it’s simply the best—there’s no debate, even compared to mini tandem panels where the differences are minimal.

    But even if you don’t play competitively, it’s an excellent panel with INCREDIBLE blacks and outstanding image quality, build quality, and response time.

    Personally, when I first turned it on, I had noticeable gray banding, but after 50-60 hours and corresponding pixel refresh cycles (which happen automatically after 4 hours when you turn off the panel), the banding disappeared. Generally, WOLED panels have this issue, but it goes away with use.

    Unfortunately, there isn’t much demand, resulting in the price getting out of hand, but we’re talking about an extremely high-quality, futureproof panel with excellent image quality.

    Finally, out of the box, the monitor doesn’t have the best calibration and loses out compared to the competition (Asus, MSI, Gigabyte), but you can download an ICC profile from ratings and the monitor achieves excellent color accuracy.

    Burn-in is not an issue on mine after 250h of gaming, even with a fixed UI

    Translated from Greek ·
    Did you find this review helpful?
  • kuriakos.karras
    5
    3 out of 4 members found this review helpful
    kuriakos.karras

    Verified purchase

    at first you need to dedicate some time to learn it and set it up, once you do a bit of calibration then it is amazing in every aspect

    Translated from Greek ·
    • Comfort
    • Picture
    • Response time
    • Viewing angle
    • Menu
    • Value for money
    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful
    Ioannis_Skitsas

    Verified purchase

    very good screen, it's more than worth it, amazing picture, for anyone who has the budget, overkill

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Joshua_Castro

    Verified purchase

  • Michaelbar
    5
    Michaelbar

    If you play competitive games, it’s simply the best—there’s no debate, even compared to mini tandem panels where the differences are minimal.

    But even if you don’t play competitively, it’s an excellent panel with INCREDIBLE blacks and outstanding image quality, build quality, and response time.

    Personally, when I first turned it on, I had noticeable gray banding, but after 50-60 hours and corresponding pixel refresh cycles (which happen automatically after 4 hours when you turn off the panel), the banding disappeared. Generally, WOLED panels have this issue, but it goes away with use.

    Unfortunately, there isn’t much demand, resulting in the price getting out of hand, but we’re talking about an extremely high-quality, futureproof panel with excellent image quality.

    Finally, out of the box, the monitor doesn’t have the best calibration and loses out compared to the competition (Asus, MSI, Gigabyte), but you can download an ICC profile from ratings and the monitor achieves excellent color accuracy.

    Burn-in is not an issue on mine after 250h of gaming, even with a fixed UI

    Translated from Greek ·
    0
  • kuriakos.karras
    5
    kuriakos.karras

    at first you need to dedicate some time to learn it and set it up, once you do a bit of calibration then it is amazing in every aspect

    Translated from Greek ·
    3
  • 5
    Ioannis_Skitsas

    very good screen, it's more than worth it, amazing picture, for anyone who has the budget, overkill

    Translated from Greek ·
    1
  • 5
    Joshua_Castro

    0
  • See all

Description & Specifications

What's New Compared to the LG UltraGear 27GS95QE

  • Refresh Rate: The most spectacular upgrade, with the 27GX790A reaching 480Hz, doubling the speed of the 240Hz of the 27GS95QE.

  • Panel Technology: Use of the new generation WOLED (2026) with MLA+ (Micro Lens Array) technology, offering significantly higher brightness and improved viewing angles.

  • Response Time: Maintaining the instantaneous 0.03ms (GtG), which combined with 480Hz completely eliminates motion blur, surpassing even the fastest TN panels.

  • Connectivity: Integration of a DisplayPort 2.1 port in the 27GX790A, allowing data transfer for 480Hz at QHD resolution without the need for compression (DSC).

  • Protection & Cooling: New Passive Cooling 2.0 system that allows the panel to operate at higher brightness with lower risk of burn-in.

  • Incredibly fast gaming up to 480Hz & 0.03ms on a bright 27" OLED display
  • DisplayPort 2.1 bandwidth ensures ultra-smooth, fluid motion up to 480 Hz
  • Amazing and bright OLED graphics with rich color, deep black, and 1.5M:1 contrast
  • Seamless frame synchronization with FreeSync™ Premium Pro and G-Sync® for flicker-free gaming
  • Practical borderless 27" OLED with adjustable display and RGB lighting for customized setup

27" OLED Brilliance with game-changing speed up to 480 Hz

Enjoy ultra-smooth gaming with a refresh rate of up to 480 Hz and a response time of 0.03 ms on a bright 27-inch QHD OLED screen. React instantly, spot every detail, and outpace your opponents in every frame with unmatched speed and clarity.

Unleash Next-Gen Speed with Future-Ready DisplayPort 2.1

DisplayPort 2.1 offers ultra-fast data speeds for flawless 480 Hz gaming. Enjoy sharper graphics with support for higher resolution, virtually zero lag, and instant response, giving you the edge to dominate. 

Bright Image. Deep Blacks, Exceptional Detail: OLED Gaming FTW

Get lost in vivid graphics with OLED technology, providing exceptional brightness, up to 98.5% DCI-P3 color coverage, 1.5M:1 contrast ratio, and DisplayHDR True Black 400. Every gaming scene comes to life with deep blacks, brilliant highlights, and cinematic color.

Ultimate Frame Sync: FreeSync™ Premium Pro & G-SYNC® Compatible

Say goodbye to screen tearing and flickering. With compatibility for AMD FreeSync™ Premium Pro and NVIDIA® G-SYNC®, this OLED monitor offers ultra-smooth, tear-free graphics, giving you perfect frame synchronization on PC and next-gen console gaming.

Seamless and Adjustable Monitor to Player's Specifications

Dive into the game on the nearly bezel-less 27-inch OLED screen. The slim-profile monitor features adjustable height, tilt, swivel, and pivot controls that allow you to customize your view, while the hexagonal RGB backlighting enhances your battle station, making every session an atmosphere.

Up to 98.5% DCI-P3 color coverage

With up to 98.5% coverage of the DCI-P3 color spectrum, the OLED screen brings HDR games to life, offering vibrant colors for stunning visual realism in every frame.

Unlock Your Potential with Advanced Gaming Features

  • Dynamic Action Sync reduces input lag for real-time response.
  • Black Stabilizer brightens dark scenes to reveal what's hidden.
  • FPS counter shows the frame rate in real-time.
  • Crosshair enhances accuracy for deadly precision.

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

Enjoy realistic 3D sound with DTS Headphone, enhancing spatial sound to make you feel even more part of the game. The 4-pole headphone jack combines stereo sound and microphone input, providing clear sound and clear game communications through a single connection.

Low Glare, More Focus: Play Without Distractions

Stay in the zone with an OLED monitor designed to minimize glare and reflections. The anti-glare surface reduces light distractions, so you can keep your focus where it matters—on every move, every target, and every victory.

Manufacturer

Manufacturer Details

Warnings & Safety Information

Main Specifications

Panel
OLED

Panel

The technology used by the screen to display the image.

OLED
OLEDs offer perfect black performance, color accuracy, high contrast, and extremely fast response.
HDR
Yes

HDR

Technology of imaging aiming to preserve detail in both dark and bright areas, while providing a more natural color representation.
Curved
No

Curved

They offer a more natural viewing experience, greater image depth, and a wider field of view. 2. They help reduce eye strain. Recommended for screen sizes of 27" and above.
UltraWide
No

UltraWide

Long screens, suitable for tasks with multiple open windows, multitasking & video editing. They replace the use of multiple screens.
Diagonal
27 "

Diagonal

The diagonal is the number used to describe the size of the screen. The most popular sizes are 24 and 27 inch screens.
Resolution
2560x1440
Response Time (GTG)
0.03 ms

Response Time (GTG)

The time it takes for a pixel to change from one shade of gray to the next. A low response time provides faster response to our actions (input lag) and a cleaner image (less ghosting) which are important in gaming. Response times below 5ms are considered acceptable, but for gaming, monitors with 1ms are recommended.
Refresh Rate
480 Hz

Refresh Rate

Refers to how many times the screen image is refreshed per second. Screens with a high refresh rate offer a competitive advantage as their image is clearer (less motion blur).

2. Typically, for office applications and simple gaming, 60-75Hz is common. In recent years, screens with 120, 144, and even 240Hz have emerged, mainly aimed at competitive gaming.
Aspect Ratio
16:9

Aspect Ratio

The ratio of the width and height of the screen.

16:9
The most common aspect ratio for computer screens.

Ergonomics

Tilt Adjustment
Yes
Height Adjustment
No
Vertical Rotation
No
Horizontal Rotation
No
Wall Mountable (Vesa)
100 x 100 mm

Wall Mountable (Vesa)

Vesa is a standard for mounting brackets that describes in millimeters the (horizontal X vertical) distance between the 4 screws, e.g. 200x100 means that the screws are 10cm and 20cm apart, forming a rectangle.

Connectivity

Connection
DisplayPort, HDMI

Connection

DisplayPort

Modern way of digital transfer of image, sound and data, compatible with HDMI and DVI cables through an adapter.

HDMI
The type of connection used by popular gaming consoles such as Playstation 4/5, Xbox X/S, Nintendo Switch, etc. (Support for HDMI 2.1 is required for high fps and 4K resolutions.)

Additional Specifications

Speakers
No
Features & Functions
FreeSync, G-Sync, USB Hub

Features & Functions

FreeSync
The FreeSync technology is mainly aimed at gaming as it improves screen performance and eliminates screen tearing by synchronizing the refresh rate of the screen with AMD graphics cards.
G-Sync
The G-Sync technology is mainly aimed at gaming as it improves screen performance and eliminates screen tearing by synchronizing the refresh rate of the screen with Nvidia graphics cards.
USB Hub
The screen offers USB ports for easy connection of peripherals such as USB sticks. To operate, the screen must be connected to a USB port on the computer.
Eye Comfort
No

Eye Comfort

Monitors with built-in Eye Comfort or flicker free function or built-in blue light filter to protect your vision.
Colour
Black
Camera
No

Energy Label

Energy Consumption
25 kWh/1000h

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (4)

5.0
4
5.0
Review this product
  1. 4
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • Comfort
  • Picture
  • Response time
  • Viewing angle
  • Menu
  • Value for money
  • Michaelbar
    5
    Michaelbar

    Verified purchase

    If you play competitive games, it’s simply the best—there’s no debate, even compared to mini tandem panels where the differences are minimal.

    But even if you don’t play competitively, it’s an excellent panel with INCREDIBLE blacks and outstanding image quality, build quality, and response time.

    Personally, when I first turned it on, I had noticeable gray banding, but after 50-60 hours and corresponding pixel refresh cycles (which happen automatically after 4 hours when you turn off the panel), the banding disappeared. Generally, WOLED panels have this issue, but it goes away with use.

    Unfortunately, there isn’t much demand, resulting in the price getting out of hand, but we’re talking about an extremely high-quality, futureproof panel with excellent image quality.

    Finally, out of the box, the monitor doesn’t have the best calibration and loses out compared to the competition (Asus, MSI, Gigabyte), but you can download an ICC profile from ratings and the monitor achieves excellent color accuracy.

    Burn-in is not an issue on mine after 250h of gaming, even with a fixed UI

    Translated from Greek ·
    Did you find this review helpful?
  • kuriakos.karras
    5
    3 out of 4 members found this review helpful
    kuriakos.karras

    Verified purchase

    at first you need to dedicate some time to learn it and set it up, once you do a bit of calibration then it is amazing in every aspect

    Translated from Greek ·
    • Comfort
    • Picture
    • Response time
    • Viewing angle
    • Menu
    • Value for money
    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful
    Ioannis_Skitsas

    Verified purchase

    very good screen, it's more than worth it, amazing picture, for anyone who has the budget, overkill

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Joshua_Castro

    Verified purchase

  • Michaelbar
    5
    Michaelbar

    If you play competitive games, it’s simply the best—there’s no debate, even compared to mini tandem panels where the differences are minimal.

    But even if you don’t play competitively, it’s an excellent panel with INCREDIBLE blacks and outstanding image quality, build quality, and response time.

    Personally, when I first turned it on, I had noticeable gray banding, but after 50-60 hours and corresponding pixel refresh cycles (which happen automatically after 4 hours when you turn off the panel), the banding disappeared. Generally, WOLED panels have this issue, but it goes away with use.

    Unfortunately, there isn’t much demand, resulting in the price getting out of hand, but we’re talking about an extremely high-quality, futureproof panel with excellent image quality.

    Finally, out of the box, the monitor doesn’t have the best calibration and loses out compared to the competition (Asus, MSI, Gigabyte), but you can download an ICC profile from ratings and the monitor achieves excellent color accuracy.

    Burn-in is not an issue on mine after 250h of gaming, even with a fixed UI

    Translated from Greek ·
    0
  • kuriakos.karras
    5
    kuriakos.karras

    at first you need to dedicate some time to learn it and set it up, once you do a bit of calibration then it is amazing in every aspect

    Translated from Greek ·
    3
  • 5
    Ioannis_Skitsas

    very good screen, it's more than worth it, amazing picture, for anyone who has the budget, overkill

    Translated from Greek ·
    1
  • 5
    Joshua_Castro

    0
  • See all
848,69 €
47,00 €   shipping cost