LG 27GX790B-B UltraGear 27” OLED QHD/FHD Dual Mode 540Hz/720Hz FreeSync/G-SYNC Widescreen Gaming Monitor
Product Technical Specification
| Efficiency Class | |
| UK Energy Efficiency Class HDR | G |
| UK Energy Efficiency Class | F |
| Colour | |
| Primary Colour | Black |
| Dimensions | |
| Length / Depth | 220 mm |
| Width | 605.2 mm |
| Height | 527.6 mm |
| Width (without stand) | 605.2 mm |
| Depth (without stand) | 51.2 mm |
| Height (without stand) | 351 mm |
| Weight | 6.8 kg |
| Weight (without stand) | 4.3 kg |
| Speakers | |
| Speakers | No |
| Lighting | |
| Lighting / RGB | No |
| Standards / Specifications | |
| Adaptive Sync Technology (G-SYNC / FreeSync) | AMD FreeSync Premium Pro, NVIDIA G-SYNC, adaptiveSync |
| Standard / specification | HDMI 2.1, DisplayPort 2.1 |
| Display | |
| Display Size in Inch | 27 " |
| Display Size in cm | 67.3 cm |
| Display Resolution | WQHD (2560 x 1440 Pixel) |
| Display Aspect Ratio | 16:9 |
| Display Refresh Rate | 720 Hz |
| Display Panel Type | OLED |
| Colour depth | max. 1.07 billion colours (10 bit) |
| Colour Space (DCI-P3) | 99.5 % |
| Contrast Ratio (Static) | 1,500,000:1 |
| Curved Display | No |
| Display Response Time | 0.02 ms |
| Display Response Time (Grey-to-Grey) | 0.02 ms |
| HDR | Yes |
| HDR Standard | VESA DisplayHDR True Black 500 |
| Screen Brightness SDR / normal | 335 cd/m² |
| Viewing angle | 178° horizontal / 178° vertical |
| Display Surface Type | glossy / non-reflective |
| Touchscreen | No |
| Ergonomics | |
| Height adjustment | Yes |
| Min. Adjustable Height | 0 mm |
| Max. Adjustable Height | 110 mm |
| Min. Swivel | -30 ° |
| Max. Swivel | 30 ° |
| Min. Tilt | -5 ° |
| Max. Tilt | 21 ° |
| Pivot | Yes |
| Connectivity | |
| Peripheral connectors | 3.5 mm jack 4-pole, TRRS (1x) |
| Compatibility | |
| Compatibility Note | Please refer to the manufacturer's compatibility information. You can find the latest overview on the manufacturer's website. |
| External Ports | |
| Display Connectors | HDMI (2x), Display Port (1x), USB Type C (Display Port shared) (1x) |
| Display Connector Standards | HDMI 2.1, DisplayPort 2.1 |
| USB Hub | Yes |
| Mounting | |
| Vesa standard | 100 x 100 mm |
Delivery Options
Economy Delivery (UK)
Business Express
LG 27GX790B-B UltraGear 27” OLED Gaming Monitor – 27" display size, OLED panel, QHD resolution, Dual Mode 720Hz at FHD (1920x1080) / 540Hz at QHD (2560x1440), 0.02ms response time, AMD FreeSync Premium Pro, NVIDIA G-SYNC compatible, Adaptive Sync, VESA DisplayHDR 500 True Black, HDMI 2.1, DisplayPort 2.1, and USB-C.
LG 27GX790B-B UltraGear 27” OLED Gaming Monitor at a Glance:
- 27" gaming monitor with QHD resolution and 0.02ms response time
- OLED panel with vibrant colour and crisp contrast
- Dual Mode display – 720Hz at FHD (1920x1080) or 540Hz at QHD (2560x1440)
- Adaptive Sync, AMD FreeSync Premium Pro, and NVIDIA G-SYNC support
- Ergonomic and adjustable stand
- Modern connectivity with HDMI 2.1, DisplayPort 2.1, and USB-C
Premium OLED Display
Unlock premium visuals, with the LG 27GX790B-B UltraGear 27” OLED Gaming Monitor. This 27” display harnesses 4th Gen Primary RGB Tandem OLED panel technology to create vibrantly coloured images with stark contrast and optimised brightness. This is paired with VESA Display HDR True Black 500 and a 99.5?I-P3 colour gamut, resulting in high colour fidelity, rich with detail and shadows. Enjoy heightened immersion, whether you’re gaming, watching a film, or creating content.
Dual Mode Display
For peak gaming performance, the LG 27GX790B-B UltraGear 27” OLED Gaming Monitor features Dual Mode technology. This enables you to play at a lower resolution with a high refresh rate or opt for the higher resolution with a lower refresh rate, whichever your gaming demands.
To give you the ultimate edge in competitive play, you can set this display to FHD (1920x1080) with an astonishing 720Hz refresh rate. Alternatively, you can choose QHD (2560x1440) at 540Hz, making your cinematic cut scenes smooth and visually stunning.
The LG 27GX790B-B UltraGear 27” OLED Gaming Monitor also features a 0.02ms response time, ensuring all fast-paced action stays free of motion blur. This is enhanced further by support for Adaptive Sync, AMD FreeSync Premium Pro, and NVIDIA G-SYNC variable refresh rate technologies. Each of these works to reduce screen tearing, stuttering, and ghosting by synchronising your GPU output with the display.
Connectivity and Ergonomics
To ensure optimal compatibility with modern hardware, the LG 27GX790B-B UltraGear 27” OLED Gaming Monitor features a range of connectivity options. This includes HDMI 2.1, DisplayPort 2.1, and USB-C. When using DP 2.1, you can take advantage of next-generation bandwidth for optimised performance, while the USB-C port offers a streamlined set up.
For enhanced comfort while you game, the LG 27GX790B-B UltraGear 27” OLED Gaming Monitor has an anti-glare and low reflection screen. This is paired with a selection of UL-verified eye comfort technologies, which are designed to reduce eye strain and fatigue while still providing the best picture and colour. What’s more, the stand can be ergonomically adjusted in height, swivel, tilt, and pivot so the screen is properly aligned with the rest of your set-up.
| Efficiency Class | |
| UK Energy Efficiency Class HDR | G |
| UK Energy Efficiency Class | F |
| Colour | |
| Primary Colour | Black |
| Dimensions | |
| Length / Depth | 220 mm |
| Width | 605.2 mm |
| Height | 527.6 mm |
| Width (without stand) | 605.2 mm |
| Depth (without stand) | 51.2 mm |
| Height (without stand) | 351 mm |
| Weight | 6.8 kg |
| Weight (without stand) | 4.3 kg |
| Speakers | |
| Speakers | No |
| Lighting | |
| Lighting / RGB | No |
| Standards / Specifications | |
| Adaptive Sync Technology (G-SYNC / FreeSync) | AMD FreeSync Premium Pro, NVIDIA G-SYNC, adaptiveSync |
| Standard / specification | HDMI 2.1, DisplayPort 2.1 |
| Display | |
| Display Size in Inch | 27 " |
| Display Size in cm | 67.3 cm |
| Display Resolution | WQHD (2560 x 1440 Pixel) |
| Display Aspect Ratio | 16:9 |
| Display Refresh Rate | 720 Hz |
| Display Panel Type | OLED |
| Colour depth | max. 1.07 billion colours (10 bit) |
| Colour Space (DCI-P3) | 99.5 % |
| Contrast Ratio (Static) | 1,500,000:1 |
| Curved Display | No |
| Display Response Time | 0.02 ms |
| Display Response Time (Grey-to-Grey) | 0.02 ms |
| HDR | Yes |
| HDR Standard | VESA DisplayHDR True Black 500 |
| Screen Brightness SDR / normal | 335 cd/m² |
| Viewing angle | 178° horizontal / 178° vertical |
| Display Surface Type | glossy / non-reflective |
| Touchscreen | No |
| Ergonomics | |
| Height adjustment | Yes |
| Min. Adjustable Height | 0 mm |
| Max. Adjustable Height | 110 mm |
| Min. Swivel | -30 ° |
| Max. Swivel | 30 ° |
| Min. Tilt | -5 ° |
| Max. Tilt | 21 ° |
| Pivot | Yes |
| Connectivity | |
| Peripheral connectors | 3.5 mm jack 4-pole, TRRS (1x) |
| Compatibility | |
| Compatibility Note | Please refer to the manufacturer's compatibility information. You can find the latest overview on the manufacturer's website. |
| External Ports | |
| Display Connectors | HDMI (2x), Display Port (1x), USB Type C (Display Port shared) (1x) |
| Display Connector Standards | HDMI 2.1, DisplayPort 2.1 |
| USB Hub | Yes |
| Mounting | |
| Vesa standard | 100 x 100 mm |
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 simple, hassle-free returns policy. If for whatever
reason you are not happy with the item purchased, you can return it to us
within 14 days of receipt for a refund. This applies to items purchased
direct through Buykingston only.
Our 14 Day Returns Money Back Guarantee:
For items returned in resaleable condition, with all original packaging. If
an item has been opened for inspection but shows signs of use beyond that, a
deduction may apply to reflect the reduced value — see our full
Terms & Conditions
(Section 12) for details.
Some items are excluded from our money-back guarantee unless they have developed a fault. These include:
- Headphones
- Earphones
- Custom made and designed products, such as flash memory products with
custom logos on them, e.g. USB flash drives and memory cards with your own
logo
Returns FAQs
What is your returns criteria?
14 days from date of receipt, or expected date of receipt on non-tracked
items.
How do I go about returning my order?
Please contact us
via our contact page with your order number. We will provide you with an RMA
number and return instructions, including your return deadline and whether a
freepost label applies to your order.
Do I need to contact you before returning my order?
Yes, to obtain an RMA number before sending anything back.
Does my item have to include its original packaging?
Yes, to qualify for our 14 day money-back guarantee. For faulty items, we
understand you may no longer have the original packaging.
Who pays for return postage?
If your item is faulty, damaged, or not as described, we cover reasonable
return postage, or provide a freepost label where available. If you are
returning an item for another reason (including simply changing your mind),
you are responsible for return postage unless we have expressly confirmed a
freepost label in your RMA email — we recommend using a tracked and
insured service for items of significant value.
Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer
directly for assistance.
Please ensure you have read and comply in full with Sections 11–13 of our Terms & Conditions.