LG Ultragear 27GX790A-B 27" QHD (2560×1440) Gaming Monitor
Bottom line: The LG Ultragear 27GX790A-B 27" QHD Gaming Monitor is a specs-and-price decision rather than a crowd-consensus one in the gaming monitors category, priced around $714.95. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.
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*Price sourced from Amazon.com. Last updated 2026-09-29. Price and availability subject to change.
Before you buy
- Check the listed dimensions, connectors and platform compatibility against your setup before ordering
- Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
Manufacturer description
The LG UltraGear 27GX790A-B is a high performance 27 inch QHD OLED gaming monitor engineered for competitive players and immersive entertainment. Featuring a 2560 x 1440 resolution OLED panel, it delivers exceptional image clarity, deep blacks, and vibrant color with support for over one billion colors and 98.5 percent DCI P3 coverage. VESA DisplayHDR True Black 400 certification, a 1.5 million to one contrast ratio, and peak brightness up to 1300 nits ensure realistic highlights and shadow detail across games and media. Designed for speed, the monitor boasts an ultra fast 480 Hz refresh…
SpecPicks Verdict
SpecPicks scored LG Ultragear 27GX790A-B 27" QHD (2560×1440) Gaming Monitor | 480Hz… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the gaming monitors category. Compare with similarly-priced alternatives in the gaming monitors category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for gaming monitors of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- Bundle Items Include: LG UltraGear OLED 27GX790A-B 27" 1440p HDR 480 Hz Gaming Monitor, HDMI Cable, Cable Ties, LCD Screen Cleaning Kit
- The LG UltraGear 27GX790A-B features a 27 inch QHD OLED panel with 2560 x 1440 resolution, delivering exceptional clarity, deep contrast, and lifelike color. With VESA DisplayHDR True Black 400 certification, up to 1300 nits peak brightness, and a 1.5 million to one contrast ratio, it produces vivid highlights and true blacks for immersive gaming and entertainment.
- Built for competitive gaming, this UltraGear monitor offers an ultra fast 480 Hz refresh rate paired with an industry leading 0.03 ms response time. This combination dramatically reduces motion blur and ghosting, ensuring fluid visuals and precise motion clarity during high speed gameplay, esports competition, and fast paced action scenes.
- AMD FreeSync Premium Pro and NVIDIA G Sync compatibility allow the display to dynamically synchronize its refresh rate with supported graphics cards. This adaptive sync performance minimizes screen tearing, stuttering, and input lag, delivering smooth and consistent visuals across a wide range of frame rates for a more responsive gaming experience.
- Designed for comfort and immersion, the monitor includes ergonomic height, tilt, swivel, and pivot adjustments along with 178 degree viewing angles. DTS Headphone X enhances spatial audio for headphones, while RGB lighting accents and versatile connectivity including HDMI 2.1, DisplayPort, and USB hub support complete a premium gaming focused setup.
Full Specifications
| Brand | LG |
|---|---|
| Brightness | 1300 candela_per_square_meter |
| Model Name | LG Ultragear 27GX790A-B |
| Resolution | QHD Wide 1440p |
| Unit Count | 1 Count |
| Screen Size | 27 inches |
| Aspect Ratio | Unknown |
| Connectivity | USB |
| Display Type | OLED |
| Model Number | 27GX790A-B_AG9_1 |
| Refresh Rate | 480 hertz |
| Adaptive Sync | FreeSync Premium Pro, G-Sync Compatible |
| Response Time | 0.03 milliseconds |
| Screen Finish | Glossy |
| Viewing Angle | 178 degrees |
| Contrast Ratio | 1500000:1 |
| Total Usb Ports | 3 |
| Native Resolution | 2560x1440 |
| Display Technology | OLED |
| Additional Features | Adaptive Sync |
| Full listing title | LG Ultragear 27GX790A-B 27" QHD (2560×1440) Gaming Monitor | 480Hz OLED Display, 0.03ms Response, HDR, NVIDIA G-SYNC Compatible, FreeSync Premium, HDMI & DisplayPort + HDMI Cable + Cable Ties + More |
Ready to buy?
LG Ultragear 27GX790A-B 27" QHD (2560×1440) Gaming Monitor | 480Hz OLED Display, 0.03ms Response, HDR, NVIDIA G-SYNC Compatible, FreeSync Premium, HDMI & DisplayPort + HDMI Cable + Cable Ties + More is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-09-29. Price and availability subject to change.
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