LG UltraGear™ 27GX790A-B

27-inch QHD (2560×1440) WOLED gaming monitor with a blistering 480Hz refresh rate, 0.03ms GtG response, MLA+ brightness, DisplayHDR™ True Black 400, and next-gen DisplayPort 2.1 for competitive play.

Key notes

27" QHD (2560×1440) OLED with MLA+ for higher SDR brightness and deep blacks.
480Hz refresh and 0.03ms (GtG) response for esports-grade speed.
DisplayHDR True Black 400, DCI-P3 98.5% (Typ.), anti-glare/low-reflection coating.
DisplayPort 2.1 and dual HDMI 2.1 ready for latest GPUs and consoles.
LG OLED care options (screen move, saver, cleaning) plus on-screen controls.

Hero view of UltraGear 27GX790A-B with OLED badge.

Hero shot highlights the compact 27" OLED with minimalist stand and thin bezels.

480Hz with 0.03ms GtG keeps fast motion crisp for racing and FPS titles.

DisplayPort 2.1 bandwidth enables QHD at 480Hz plus HDMI 2.1 for consoles.

MLA+ WOLED boosts brightness and contrast for punchy HDR while keeping rich blacks.

Anti-glare and low blue light comparison.

Anti-glare, low-reflection panel with low blue light keeps visuals clear and comfortable.

OLED care tools like Screen Move and Screen Saver help reduce image retention.

On-screen menu showing Smart Energy Saving toggle.

Quick OLED tweaks: Smart Energy Saving, Gamer mode, Brightness and Peak Brightness presets.

Protect OLED menu shows Screen Move, Screen Saver, and Image Cleaning options.

FPS Counter overlay gives real-time frame rate readout.

Rear I/O includes DP 2.1 and dual HDMI 2.1 for modern GPUs and consoles.

*Images are simulated to enhance feature understanding and may differ from actual use.

(27GX790A-B)

LG UltraGear™ 27" 4K IPS Black

27-inch 4K (3840 x 2160) IPS Black gaming monitor with 240 Hz refresh, 1 ms GtG, DCI-P3 99% gamut, DisplayHDR 600, FreeSync Premium Pro, G-SYNC Compatible, and fully adjustable stand.

Key Specs

Display Size	27 in
Resolution	3840 x 2160
Panel / Aspect	IPS Black, 16:9
Brightness (Typ.)	450 cd/m2
Colour Gamut (Typ.)	DCI-P3 99% (CIE1976)
Refresh Rate (Max.)	240 Hz
Response Time	1 ms (GtG, Faster)
Stand Adjustments	Tilt / Height / Swivel / Pivot

All Specifications

Display

Size (inch / cm)	27 / 68.47
Aspect Ratio	16:9
Panel Type	IPS Black
Resolution	3840 x 2160
Pixel Pitch	0.1554 x 0.1554 mm
Colour Depth	1.07B
Viewing Angle (CR≥10)	178 deg (R/L), 178 deg (U/D)
Brightness (Typ./Min.)	450 / 360 cd/m2
Contrast Ratio (Typ./Min.)	2000:1 / 1400:1
Colour Gamut (Typ./Min.)	DCI-P3 99% / 90% (CIE1976)
Refresh Rate (Max.)	240 Hz
Response Time	1 ms (GtG, Faster)

Connectivity

HDMI	Yes (2)
DisplayPort	Yes (1, DP 2.1)
USB Downstream	Yes (2, USB 3.2 Gen1)
USB Upstream	Yes (1, USB 3.2 Gen1)
Headphone Out	4-pole (sound + mic)

Features

HDR10 / VESA DisplayHDR	Yes / DisplayHDR 600
AMD FreeSync	FreeSync Premium Pro
NVIDIA G-SYNC Compatible	Yes
VRR	Yes
Colour Weakness / Reader Mode	Yes / Yes
Smart Energy Saving	Yes
Flicker Safe	Yes
Dynamic Action Sync / Black Stabiliser	Yes / Yes
Crosshair / FPS Counter	Yes / Yes
Nano IPS Technology	Yes
RGB Lighting	Unity Hexagon Lighting
User Defined Key / Auto Input Switch	Yes / Yes
HW Calibration Ready	Yes
HDR Effect	Yes

Mechanical

Display Position Adjustments	Tilt / Height / Swivel / Pivot
Wall Mount	100 x 100 mm

Sound

DTS Headphone:X

Yes (via 4-pole jack)

Dimensions / Weights

Shipping (W x H x D)	838 x 184 x 439 mm
With Stand (W x H x D)	614.7 x 581.8 x 249.1 mm
Without Stand (W x H x D)	614.7 x 365.4 x 68.1 mm
Weight Shipping / With Stand / Without Stand	12.3 kg / 9.4 kg / 5.2 kg