LG UltraGear 27GX790A-B / LG UltraGear 32GS95UE-B

LG UltraGear 27GX790A-B: 27-inch class (26.5-inch) QHD 480 Hz OLED

LG UltraGear 32GS95UE-B: 32GS95UE-B black; 31.5-inch 4K WOLED. The white 32GS95UV-W is a colour/market variant with the same panel; the 32GX850A-B and 27-inch models are separate.

SpecificationLG UltraGear 27GX790A-BLG UltraGear 32GS95UE-B
Release year20252024
Model27GX790A-B (US version 27GX790A-B.AUS)

LG’s US spec sheet carries a 2024 copyright; LG Brazil lists the model as a 2025 product.

LG		—
Panel26.5-inch (27-inch class) OLED, 16:9

The actual viewable diagonal is 26.5 inches.

LG		31.5-inch OLED, 16:9; 3840 × 2160; 0.1814 mm pixel pitch; matte AGLR surface

About 140 ppi keeps text sharp at 32 inches; the matte surface diffuses reflections but can make blacks look slightly greyer than a glossy finish.

LG
Resolution and pixel pitch2560 × 1440 (QHD); 0.2292 mm pixel pitch

QHD at 27 inches means lower pixel density than 4K; small text looks less crisp but high frame rates are easier to reach on the GPU.

LG		—
Refresh rate480 Hz

480 Hz means up to 480 frames per second; seeing that benefit requires the game and GPU to deliver close to 480 fps.

LG		—
Response time0.03 ms (GtG)

Grey-to-grey pixel transition time; it is not input lag.

LG		0.03 ms GtG

GtG is the time a pixel takes to move from one grey shade to another; it is not the same as total input lag.

LG
BrightnessTypical 275 cd/m² (min 250); HDR peak at 1.5% APL typical 1,300 cd/m² (min 1,040)

1,300 nits applies only to small highlights covering 1.5% of the screen; on a full white screen OLED automatic brightness limiting kicks in.

LG		—
Contrast1,500,000:1 (typical)

OLED pixels can switch fully off, so black level is near zero; LG’s page notes the figure is measured at 25% APL.

LG		—
ColourDCI-P3 98.5% (CIE 1976); 10-bit (1.07 billion colours)

The sheet lists a paper calibration report in the box.

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HDRHDR10; VESA DisplayHDR True Black 400

True Black is the VESA HDR tier for very low black-level displays such as OLED.

LG		—
Variable refreshVESA AdaptiveSync; NVIDIA G-SYNC Compatible; AMD FreeSync Premium Pro

Variable refresh matches the panel to the GPU frame rate to reduce tearing and stutter. LG’s page also lists VESA ClearMR 21000 certification.

LG		NVIDIA G-SYNC Compatible; AMD FreeSync Premium Pro; VESA AdaptiveSync and ClearMR certifications LG
Screen surfaceAnti-glare, low-reflection front polariser LG—
Inputs2× HDMI (HDMI 2.1 FRL compliant); 1× DisplayPort 2.1

FRL is the high-bandwidth transfer mode of HDMI 2.1. There is no USB-C video input.

LG		—
USB and audioUSB 3.0: 1 upstream, 2 downstream; 4-pole headphone out (sound + mic); DTS Headphone:X

No built-in speakers are listed.

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StandTilt -5°/15°; swivel -30°/30°; height 110 mm; clockwise pivot; VESA 100 × 100

It has a tool-free 1Click stand mount and hexagonal RGB lighting on the back.

LG		—
PowerExternal adapter, 100–240 V; under 0.5 W in sleep, under 0.3 W off

The sheet does not list typical power consumption.

LG		External adapter (19.5 V, 10.8 A); under 0.5 W in sleep, under 0.3 W off LG
Burn-in careOLED Care

LG says the feature helps prevent burn-in from static high-contrast images left on screen for long periods but may not prevent all image retention.

LG		—
Size and weightWith stand 23.8 × 22.8 × 9.8 in (raised), 20.5 lb; without stand 23.8 × 13.8 × 1.8 in, 11.2 lb

About 9.3 kg with stand, about 5.1 kg without.

LG		With stand 714.1 × 507–627 × 266 mm, 9 kg; without stand 714.1 × 411.8 × 65 mm, 5.6 kg LG
In the boxPower cord, DisplayPort 2.1 cable, HDMI 2.1 cable, USB A-to-B cable, paper calibration report LG—
Refresh and Dual Mode—240 Hz at 4K; Dual Mode switches to FHD (1920 × 1080) at 480 Hz via hotkey or joystick

Dual Mode doubles the refresh rate by lowering the resolution; it improves motion clarity in competitive games, while 1080p looks softer on the desktop.

LG
Brightness and contrast—275 nits typical (250 minimum); 1,500,000:1 typical contrast LG
Colour and HDR—DCI-P3 98.5% (CIE 1976); 1.07 billion colours; HDR10; VESA DisplayHDR True Black 400

The True Black 400 certification sets black level and small-area brightness criteria for OLEDs; full-screen brightness stays below that.

LG
Connections—2 × HDMI 2.1; 1 × DisplayPort 1.4 (DSC); USB 3.0 (1 upstream, 2 downstream); 4-pole headphone out

4K 240 Hz runs over DisplayPort 1.4 with DSC compression. There is no USB-C input or KVM.

LG
Audio—Pixel Sound; 2 × 10 W; DTS Virtual:X

The speakers sit behind the panel, so sound comes from the front of the screen.

LG
Stand and mounting—Tilt, height and swivel adjustment; VESA 100 × 100 mm LG