LG UltraGear evo GX9 39GX950B-B / LG UltraGear 34GS95QE-B

LG UltraGear evo GX9 39GX950B-B: 39GX950B-B · 38.86-inch · 5K2K · black

LG UltraGear 34GS95QE-B: 34GS95QE-B (US code 34GS95QE-B.AUS; .AUS is a factory suffix). 34-inch class (33.9-inch) 800R curved OLED.

SpecificationLG UltraGear evo GX9 39GX950B-BLG UltraGear 34GS95QE-B
Release year20262024
Display38.86-inch OLED · 5120 × 2160 · 21:9 LG—
Curvature1500R LG—
Pixel pitch0.1776 × 0.1776 mm LG—
Refresh rate165 Hz (5120 × 2160) LG—
Dual-Mode330 Hz at 2560 × 1080 in the 21:9 modes; 330 Hz at 1920 × 1080 in the 16:9 modes

The product page calls this mode QHD in one place and WFHD in another; the resolutions in the manual were used. Exit the game before changing the mode.

LG		—
Pixel response0.03 ms GtG

Not total input lag.

LG		—
Brightness335 nits typical; 300 nits minimum LG275 cd/m² typical (250 minimum); 1,300 nits peak LG
Peak HDR brightness1500 nits

Peak figure LG states under internal test conditions; not sustained full-screen brightness.

LG		—
HDR formatsHDR10; VESA DisplayHDR True Black 500; no Dolby Vision LG—
Colour coverageDCI-P3 99.5% typical, 94% minimum (CIE1976); 1.07 billion colours LG—
Contrast ratio1,850,000:1 typical; 1,480,000:1 minimum

Manufacturer figure.

LG		—
SurfaceAnti-glare, low-reflection front polarizer LGAnti-glare, low-reflection coating LG
CalibrationFactory calibrated; hardware-calibration ready (LG Calibration Studio) LG—
Variable refreshG-SYNC Compatible; FreeSync Premium Pro LGVESA AdaptiveSync; NVIDIA G-SYNC Compatible; AMD FreeSync Premium Pro

Variable refresh matches the screen to the graphics card’s frame rate, reducing tearing and stutter.

LG
DisplayPort1 × DisplayPort 2.1; UHBR20

The graphics card and cable must support this rate.

LG		—
HDMI2 × HDMI 2.1

The menu has 2.1(PC) and 2.1(AV) compatibility options. The product page connectivity table omits the HDMI count; the two inputs in the manual were used.

LG		—
USB-C input1 × USB-C; video, data and up to 90 W power

The manual lists DP Alternate Mode and Power Delivery. The port does not power the monitor; the adapter is required.

LG		—
USB hubUSB-C upstream; 2 × downstream USB 3.2 Gen 2

The manual says the downstream ports run at USB 2.0 over a USB-C to USB-C cable and USB 3.0 over a USB-C to USB-A cable.

LG		—
Multiple sources2 × PBP and PIP; no built-in KVM LG—
Audio2 × 7 W speakers; 4-pole headphone output; AI Sound LG—
StandTilt −8° / +15°; ±30° swivel; 110 mm height adjustment

The manual does not describe pivot rotation.

LG		—
Wall mount100 × 100 mm; 4 × M4 × L10 screws; optional LSW149 plate LG—
Dimensions921.4 × 605.4 × 322.8 mm with stand (up); 921.4 × 495.4 × 322.8 mm (down); 921.4 × 405.0 × 118.7 mm without stand

Width × height × depth.

LG		784.1 × 465.9–585.9 × 278.7 mm with stand; 784.1 × 358.3 × 167.1 mm without LG
Weight10.7 kg with stand; 6.8 kg without LG9.3 kg with stand; 5.9 kg without LG
PowerExternal adapter; 40.3 W on-mode in SDR, 45.9 W in HDR

On-mode power demand from the product information sheet.

LG		External adapter (19.5 V, 10.8 A); under 0.5 W in sleep and 0.3 W off LG
OLED careScreen saver; Image Cleaning of about 10 minutes

The manual states that prolonged use can cause permanent brightness reduction and image retention.

LG		—
LightingUnity Hexagon Lighting 2.0 on the back LG—
Warranty2 years; OLED panel included LG—
Panel—33.9-inch (86.2 cm) OLED; 21:9; 800R curve

800R means the screen follows the arc of an 800 mm radius circle, bringing the edges of the wide screen closer to your eyes.

LG
Resolution—3440 × 1440 (UWQHD); 0.231 mm pixel pitch LG
Refresh and response—240 Hz; 0.03 ms (GtG) LG
Contrast and colour—1,500,000:1 typical; 98.5% DCI-P3 (CIE 1976); 10-bit (1.07 billion colours) LG
HDR—HDR10; VESA DisplayHDR True Black 400 LG
Inputs—2 × HDMI 2.1; 1 × DisplayPort 1.4 (DSC)

DSC compresses the image in a visually lossless way to carry high resolution and refresh rates over one cable. Inputs are detected automatically.

LG
USB and audio—USB 3.0: 1 upstream, 2 downstream; 4-pole headphone output

The 4-pole jack accepts a headset with a microphone directly on the monitor.

LG
Display features—PBP/PIP (2 sources); Black Stabilizer; Crosshair; FPS counter; Reader Mode; factory calibration; hardware calibration ready; VESA ClearMR

PBP splits the screen to show two sources side by side, while PIP shows the second source in a small window. Black Stabilizer brightens detail in dark scenes.

LG
Stand and mounting—Height, tilt and swivel adjustment; VESA 100 × 100 mm LG