LG 27" UltraGear™ OLED 480Hz QHD Gaming Monitor

Manufacturer: LG Electronics | Model: 27GX790A-B.AEK | Product ID: 1686
£925.95 (inc. VAT)
2 in stock
100% Money Back Guarantee - Risk Free

Product Technical Specification

Display
Display diagonal27
Display resolution2560 x 1440
HD type2K
Native aspect ratio16:9
Display technologyOLED
Panel typeWOLED
TouchscreenNo
Display brightness (typical)275
Response time0.03
Response time measurement typeGTG (Gray to Gray)
Display surfaceGloss
Anti-glare screenYes
Screen shapeFlat screen
Contrast ratio (typical)1500000:1
Maximum refresh rate480
Viewing angle, horizontal178
Viewing angle, vertical178
Pixel pitch0.2292 x 0.2292
Pixel density111
High Dynamic Range (HDR) supportedYes
High Dynamic Range (HDR) technologyDisplayHDR 400 True Black,High Dynamic Range 10 (HDR10)
Performance
NVIDIA G-SYNCYes
NVIDIA G-SYNC typeG-SYNC Compatible
AMD FreeSyncYes
AMD FreeSync typeFreeSync Premium Pro
VESA Adaptive Sync supportYes
Flicker-free technologyYes
Low Blue Light technologyYes
Game modeYes
Multimedia
Built-in speaker(s)No
Built-in microphoneNo
Built-in cameraNo
Design
Market positioningGaming
Product colourBlack
RefurbishedNo
Frameless designYes
Front bezel colourBlack
Detachable standYes
Feet colourBlack
Ports & interfaces
Built-in USB hubYes
USB hub version2.0 / 3.2 Gen 1 (3.1 Gen 1)
USB upstream port typeUSB Type-B
Number of upstream ports1
Number of USB Type-B upstream ports quantity1
USB Type-A downstream ports quantity2
HDMIYes
HDMI ports quantity2
HDMI version2.1a
DisplayPorts quantity1
DisplayPort out quantity1
DisplayPort version2.1
Headphone outYes
Headphone outputs1
Headphone connectivity3.5 mm
Ergonomics
VESA mountingYes
Panel mounting interface100 x 100
Wall mountableYes
Cable managementYes
Cable lock slotYes
Cable lock slot typeKensington
Height adjustmentYes
Adjustable height (max)110
PivotYes
SwivellingYes
Swivel angle range-30 - 30
Tilt adjustmentYes
Tilt angle range-5 - 15
Picture-in-PictureYes
On Screen Display (OSD)Yes
Plug and PlayYes
Power
Energy efficiency class (SDR)F
Energy efficiency class (HDR)G
Energy consumption (SDR) per 1000 hours25
Energy consumption (HDR) per 1000 hours30
Power consumption (standby)0.5
AC input voltage100 - 240
AC input frequency50/60
Power supply typeExternal
Energy efficiency scaleA to G
Weight & dimensions
Width (with stand)605.2
Depth (with stand)249.1
Height (with stand)579.3
Weight (with stand)9300
Width (without stand)605.2
Depth (without stand)45.3
Height (without stand)351
Weight (without stand)5100
Packaging data
Package width820
Package depth183
Package height532
Package weight12500
Packaging content
Stand includedYes
Cables includedAC,DisplayPort,HDMI,USB Type-A to USB Type-B
Power adapter includedYes
Screws includedYes
Quick start guideYes
ManualYes
HDMI cable length1.8
Other features
Low input lagYes
FPS counterYes
Dial pointNo
Shadow controlNo
Motion blur reductionYes
Sound mirroringNo
Screen mirroringYes
Local dimmingYes

Delivery Options

Economy Delivery
FREE
Economy Delivery

Economy Delivery (UK)

Estimated delivery date: Sun 07th Dec 2025 to Wed 10th Dec 2025
Business Express
£6.95
Business Express

Business Express

Estimated delivery date: Sat 06th Dec 2025 to Mon 08th Dec 2025
View all Delivery Options & International Rates
Superfast 480Hz OLED with
DP 2.1 and ClearMR 21000


LG OLED, ongoing evolution
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.

Superfast OLED, 480Hz and 0.03ms (GtG)

Lightning speed
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.

DP 2.1, the wait is over
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 brightest OLED**
Experience stunning visuals with LG WOLED. Built on LG's OLED leadership and featuring Micro Lens Array+ (MLA+) technology, it delivers up to 37.5% brighter SDR, optimising light efficiency and minimizing loss. It represents a standard luminosity of 275 nits (APL 100%) and a peak brightness of 1300 nits (APL 1.5%). With Delta E ≦ 2 colour accuracy, it ensures vivid, true-to-life colours for immersive, precise gaming even in bright environments.

DisplayHDR True Black 400 | DCI-P3 98.5%

The explosion of colours
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.

Anti-glare & Low reflection

Excellent visibility even under in low light
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

Powerful protection from 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.

Personalised Picture Wizard

Crafted for your taste
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.

Smooth motion, infinite play

First-ever OLED monitor to receive VESA ClearMR 21000 certification
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.

Unleash ultimate clarity:
ClearMR 21000

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.

Compact and sleek
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.

Gaming GUI

Award winning 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.

Compact size, quick movement
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.

G Calibration Studio

Accurate colours updated
By utilising the hardware calibration of LG Calibration Studio, you can experience advanced colour quality with extensive colour spectrum and consistency.


Quick setups for brighter OLED
[Option 1] Turn off the Smart Energy Saving mode.

How to Protect your OLED
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'.
Display
Display diagonal27
Display resolution2560 x 1440
HD type2K
Native aspect ratio16:9
Display technologyOLED
Panel typeWOLED
TouchscreenNo
Display brightness (typical)275
Response time0.03
Response time measurement typeGTG (Gray to Gray)
Display surfaceGloss
Anti-glare screenYes
Screen shapeFlat screen
Contrast ratio (typical)1500000:1
Maximum refresh rate480
Viewing angle, horizontal178
Viewing angle, vertical178
Pixel pitch0.2292 x 0.2292
Pixel density111
High Dynamic Range (HDR) supportedYes
High Dynamic Range (HDR) technologyDisplayHDR 400 True Black,High Dynamic Range 10 (HDR10)
Performance
NVIDIA G-SYNCYes
NVIDIA G-SYNC typeG-SYNC Compatible
AMD FreeSyncYes
AMD FreeSync typeFreeSync Premium Pro
VESA Adaptive Sync supportYes
Flicker-free technologyYes
Low Blue Light technologyYes
Game modeYes
Multimedia
Built-in speaker(s)No
Built-in microphoneNo
Built-in cameraNo
Design
Market positioningGaming
Product colourBlack
RefurbishedNo
Frameless designYes
Front bezel colourBlack
Detachable standYes
Feet colourBlack
Ports & interfaces
Built-in USB hubYes
USB hub version2.0 / 3.2 Gen 1 (3.1 Gen 1)
USB upstream port typeUSB Type-B
Number of upstream ports1
Number of USB Type-B upstream ports quantity1
USB Type-A downstream ports quantity2
HDMIYes
HDMI ports quantity2
HDMI version2.1a
DisplayPorts quantity1
DisplayPort out quantity1
DisplayPort version2.1
Headphone outYes
Headphone outputs1
Headphone connectivity3.5 mm
Ergonomics
VESA mountingYes
Panel mounting interface100 x 100
Wall mountableYes
Cable managementYes
Cable lock slotYes
Cable lock slot typeKensington
Height adjustmentYes
Adjustable height (max)110
PivotYes
SwivellingYes
Swivel angle range-30 - 30
Tilt adjustmentYes
Tilt angle range-5 - 15
Picture-in-PictureYes
On Screen Display (OSD)Yes
Plug and PlayYes
Power
Energy efficiency class (SDR)F
Energy efficiency class (HDR)G
Energy consumption (SDR) per 1000 hours25
Energy consumption (HDR) per 1000 hours30
Power consumption (standby)0.5
AC input voltage100 - 240
AC input frequency50/60
Power supply typeExternal
Energy efficiency scaleA to G
Weight & dimensions
Width (with stand)605.2
Depth (with stand)249.1
Height (with stand)579.3
Weight (with stand)9300
Width (without stand)605.2
Depth (without stand)45.3
Height (without stand)351
Weight (without stand)5100
Packaging data
Package width820
Package depth183
Package height532
Package weight12500
Packaging content
Stand includedYes
Cables includedAC,DisplayPort,HDMI,USB Type-A to USB Type-B
Power adapter includedYes
Screws includedYes
Quick start guideYes
ManualYes
HDMI cable length1.8
Other features
Low input lagYes
FPS counterYes
Dial pointNo
Shadow controlNo
Motion blur reductionYes
Sound mirroringNo
Screen mirroringYes
Local dimmingYes

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Buykingston order despatch times:

We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.

These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).

We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.

Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.

Despatch times do not apply to UK public holidays.

Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.

Our warehouse reserves the right to upgrade the delivery method you select on your order.

Our available delivery options*

Contact us for a shipping quote.

*All delivery times are estimated unless stated.

Product Returns Note

Buykingston offers a very flexible and hassle free returns policy. If for whatever reason you are not happy with the item purchased you can return it to us within 12months for a refund (for unused and unopened items) or within 30 days on opened and used items for a refund. This applies to items purchased direct through Buykingston  only.

Our 30 Day Returns Money Back Guarantee Satisfaction Guarantee:
For items opened and used and that are returned in a resellable condition.

Our 365 Day Returns Money Back Guarantee Satisfaction Guarantee:
For items that remain sealed and unused.

Some items are excluded from our moneyback guarantee unless they have developed a fault. These include;

- Headphones
- Earphones
- Custom made and designed products such as flash memory products with custom logo’s on them. E,g USB flash drives and memory cards with your own logo

Returns FAQs

What is your returns criteria?
On opened items 30 days from date of receipt or expected date of receipt on non tracked items.
On unopened items 365 days.

How do i go about returning my order?
Please contact us via our contact page with your order number where we will present you with an RMA number and returns label.

Do i need to contact you before returning my order?
Yes, to obtain an RMA number.

Does my item have to include its original packaging?
Yes for items that fall within our 30 day money back guarantee and our 365 day returns. Of course for faulty items we realise you may no longer have the packaging.

Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer direct for assistance.

Please ensure you have read and comply in full with Section 11 & 13 of our terms and conditions which you can read here in full.