NVIDIA
27GX790B-B 27” Ultragear QHD (3440 x 1440) OLED Gaming Monitor, Dual Mode(QHD 540Hz/ HD 720Hz), 0.02ms, TrueBlack 500, NVIDIA G-Sync Compatible, AMD FreeSync Premium Pro, DisplayPort 2.1, USB-C, Black
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
The LG UltraGear OLED 27GX790B is built for gamers who want every visual and competitive advantage. UltraGear's 27-inch 4th Generation OLED QHD resolution display delivers pinpoint clarity with UL Verified Perfect Black and Perfect Color¹, exposing incredible detail and nuanced highlights. VESA DisplayHDR True Black 500 adds deeper contrast and controlled brightness, giving gamers a sharper read on enemies, environments, and effects in every gaming scenario.Speed is where this UltraGear OLED separates itself from others. Dual Mode² gives gamers two elite paths to victory: a 540Hz refresh…
SpecPicks Verdict
SpecPicks classifies 27GX790B-B 27” Ultragear QHD (3440 x 1440) OLED Gaming Monitor, Dual… as a mid-pack option worth checking against alternatives in the gaming monitors category, based on 17 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. NVIDIA's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Solid 4.1★ customer rating
- ✓ Backed by NVIDIA's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Outrageous Speed with LG's Brightest OLED Gaming Monitor - Experience the brightness and speed of 4th Gen OLED on a vivid 27" QHD display—engineered for ultra-smooth, tear-free gameplay. With a refresh rate up to 720Hz and lightning-fast 0.02ms response time, you’ll react faster, track every movement with precision, and outpace your opponents frame by frame with astounding brightness, clarity and speed.
- Our Brightest, Boldest OLED Gaming Monitor - Powered by UltraGear’s latest OLED with Primary RGB Tandem tech, this is LG’s brightest OLED gaming monitor yet—reaching 335 nits typical brightness for clear visibility in bright scenes. Enhanced APL and reduced ABL keep critical visuals sharp during intense action, while UL Verified Perfect Black and DisplayHDR True Black 500 deliver deep contrast and pinpoint detail.
- Next-Gen OLED Brilliance - 4th Gen Primary RGB Tandem OLED reaches 335 nits typical brightness while using less power than previous UltraGear OLED generations. The display's advanced 4-stack RGB structure delivers enhanced contrast, sharper detail, and color precision that stays consistent across every frame.
- Dual Mode: QHD 540Hz for Detail or HD 720Hz for Speed - Dual Mode pushes gaming speed to the edge, letting you toggle between QHD resolution at 540Hz or HD at 720Hz from a hotkey. Gain outrageous speed and responsiveness for split-second decisions and competitive domination.
- DisplayPort 2.1 Delivers Next-Gen Gaming Speed - DisplayPort 2.1 unlocks ultra-fast data speeds for stable, high-refresh gaming up to 720Hz. USB-C keeps your setup clean with single-cable output, and dual HDMI 2.1 ports connect seamlessly to today’s top consoles. More bandwidth. More clarity. More ways to win.
- A Virtually Instantaneous 0.02 Response Time (GtG) - The ultra-fast 0.02 response time (GtG), reducing reverse ghosting and providing fast response time, lets you to enjoy a whole new gaming performance.
Full Specifications
| Brand | LG |
|---|---|
| Color | Black |
| Shape | Flat |
| Brightness | 335 Candela per Square Meter |
| Model Name | 27GX790B-B.AUS |
| Resolution | QHD Wide 1440p |
| Color Gamut | 99.5 |
| Pixel Pitch | 0.2292 |
| Screen Size | 27 Inches |
| Aspect Ratio | 16:9 |
| Connectivity | USB-C |
| Display Type | OLED |
| Model Number | 27GX790B-B.AUS |
| Refresh Rate | 720 Hz |
Ready to buy?
27GX790B-B 27” Ultragear QHD (3440 x 1440) OLED Gaming Monitor, Dual Mode(QHD 540Hz/ HD 720Hz), 0.02ms, TrueBlack 500, NVIDIA G-Sync Compatible, AMD FreeSync Premium Pro, DisplayPort 2.1, USB-C, Black is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
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