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$500

Available on Amazon Updated Aug 30, 2026 Prime FBA

Overall75.5

Work64.4

Play87.8

Refresh100.0

Response100.0

Color100.0

Quality / price30.2

$500 on Amazon Add this monitor to a build Compare this monitor Monitor table

Written analysis

27GX790A at a glance

The 27GX790A is a 26.5" OLED monitor at 2560×1440 and 480 Hz. The listed aspect ratio is 1.778:1, 16:9.

Best fit: high-refresh gaming and fast-paced entertainment, provided the GPU can feed this resolution.

Panel and image

Overall quality is 75.5, with 64.4 work and 87.8 play. Pixel density is listed at 108 PPI. Typical brightness is 275 nits with a peak of 1200 nits. Contrast is listed as 1500000:1. The coating is Anti-glare/Matte (3H). The listed pixel count is treated as a QHD-class work multiplier.

Color and HDR

Recorded gamut coverage is 98.5% DCI-P3. Color depth is listed as 10-bit native. HDR is listed as HDR10, DisplayHDR 400 True Black.

Motion and sync

Refresh is listed at 480 Hz. Response time is listed as 0.03 ms. Input lag is listed as 1.90 ms. The play score covers mainstream gaming and media; competitive high-refresh use still depends on the GPU keeping up. Pair this resolution with the GPU table before assuming native high settings.

Ergonomics and connectivity

Stand and mount options are listed as Height · Pivot · Swivel · Tilt · VESA (100x100mm). Recorded inputs include 1 x USB 3.2 (Type-B; upstream), 2 x USB 3.2 (Type-A; downstream), 2 x HDMI 2.1 (FRL), 1 x DisplayPort 2.1, 1 x 3.5 mm Audio Out (4-pole; DTS Headphone:X).

Buying verdict

Overall quality is 75.5, a strong mainstream result for a primary desktop display.

At the recorded Amazon price, quality / price is 30.2. The nearby comparison below may reveal a better-equipped option at a similar price.

Work / price is 25.8 and play / price is 24.6.

Display data

Full specifications

Panel, color, motion, connectivity, ergonomics, power, and value in one sheet.

General

Manufacturer: LG
Monitor: 27GX790A
Series: UltraGear
Panel maker: LG Display
Launch price: —
Amazon price: $500
Amazon availability: Available
Price updated: Aug 30, 2026
Launch date: Jan 1, 2024

Panel

Size: 26.5"
Panel type: OLED
Resolution: 2560×1440
Aspect ratio: 1.778:1, 16:9
Pixel density: 108 PPI
Brightness: 275 nits · peak 1200 nits
Contrast: 1500000:1
Display area: 94.85 in²
Backlight: —
Coating: Anti-glare/Matte (3H)

Color & HDR

Color depth: 10-bit native
Colors: 1073741824
DCI-P3: 98.50%
sRGB: 100.00%
Adobe RGB: 89.70%
NTSC: —
HDR: HDR10, DisplayHDR 400 True Black
Local dimming: No

Motion

Refresh rate: 480 Hz
Response time: 0.03 ms
Input lag: 1.90 ms
Adaptive sync: —

Connectivity

Inputs: 1 x USB 3.2 (Type-B; upstream), 2 x USB 3.2 (Type-A; downstream), 2 x HDMI 2.1 (FRL), 1 x DisplayPort 2.1, 1 x 3.5 mm Audio Out (4-pole; DTS Headphone:X)
Speakers: —

Ergonomics

Height adjustment: Yes
Pivot: Yes
Swivel: Yes
Tilt: Yes
VESA mount: Yes · 100x100mm

Power & value

Typical power: —
Max power: —
Overall: 75.5
Work: 64.4
Play: 87.8
Quality / price: 30.2
Work / price: 25.8
Play / price: 24.6

Additional information

Features: 4-Side Virtually Borderless Design, Adaptive-Sync technology, AMD FreeSync Premium Pro, Auto Input Switch, Black Stabilizer, Color Weakness Mode, Crosshair, Dual Controller, Dynamic Action Sync, Factory Calibration, Flicker-free technology, FPS Counter, Game Mode, Hardware Calibration (True Color Pro), HDR Effect, Live Color Low Blue Light, NVIDIA G-Sync Compatible, Reader Mode, Smart Energy Saving, VESA AdaptiveSync Display, VESA ClearMR 21000
Accessories: DisplayPort cable, HDMI cable, USB Type-A to Type-B cable
Amazon warranty: 2 Year Parts and Labor
Amazon dimensions: {'width': 23.8, 'height': 22.8, 'length': 9.8, 'weight': 20.5}

Extracted notes sit here. Amazon listing copy, when present, is at the bottom of the page.

Amazon

Price history

Nearby quality

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

27” OLED Brilliance with up to 480Hz of Game-Changing Speed - Experience ultra-smooth, tear-free gameplay with up to 480Hz refresh rate and 0.03ms response time on a bright 27” QHD OLED display. React instantly, spot every detail, and outpace your opponents in every frame with unbeatable speed and clarity.

Unleash Next-Gen Speed with Future-Ready DisplayPort 2.1 - DisplayPort 2.1 delivers ultra-fast data speeds for flawless 480Hz gameplay. Enjoy sharper visuals with higher resolution support, virtually zero lag, and instant responsiveness, giving you the edge to dominate.The monitor also has two HDMI 2.1 ports and USB 3.0 connectivity (1 upstream / 3 downstream)

Bright Picture. Deep Blacks, Brilliant Detail: OLED Gaming FTW - Get lost in vivid visuals with OLED technology, delivering exceptional brightness, up to 98.5% of DCI-P3 color coverage, a 1.5M:1 contrast ratio, and DisplayHDR True Black 400. Every gaming scene pops with deep blacks, brilliant highlights, and cinematic color.

Ultimate Frame Sync: FreeSync Premium Pro & G-SYNC Compatible - Say goodbye to screen tearing and stutter. With AMD FreeSync Premium Pro and NVIDIA G-SYNC compatibility, this OLED monitor delivers ultra-smooth, tear-free visuals, giving you perfect frame sync across PC and next-gen console gaming.

Seamless Display, and Adjustable to Gamer Specs - Dive into gameplay on the virtually borderless 27” OLED screen. The slim-profile display has adjustable height, tilt, swivel and pivot controls that let you customize your view, while RGB hexagonal backlighting amps up your battle station, making every session a vibe.

Unlock Your Potential with Advanced Gaming Features - Dynamic Action Sync reduces input lag for real-time response. Black Stabilizer brightens dark scenes to see what's hidden. FPS Counter shows your real-time frame rate. Crosshair enhances precision for deadly accuracy.

4-Pole Jack & DTS HP:X: Gaming Audio Unleashed - Experience lifelike 3D audio with DTS Headphone2, pushing out spatial sound to make you feel even more part of the game. The 4-pole headphone jack combines stereo audio and mic input, delivering crisp sound and clear game-play comms through a single connection.

Up to 98.5% DCI-P3 Color Coverage - With up to 98.5% DCI-P3 color spectrum coverage, the OLED display brings HDR games to life, delivering vibrant, colors for stunning visual realism in every frame.

Low Glare, More Focus: Play Without Distractions - Stay in the zone with an OLED screen that’s designed to minimize glare and reflections. The anti-glare surface reduces light distractions, so you can keep your attention where it matters—on every move, every target, and every win.

OLED Protection: 2-Year Limited Warranty & Panel - Rest easy knowing your OLED monitor is built to last. The 2-year limited warranty covers key components, including the OLED panel. And OLED Care tools such as pixel cleaning keep your display sharp, for reliable top-tier performance. Please see Warranty Information on this page for all warranty details.Care Tools -