LG UltraGear evo GX9 39GX950B-B / MSI MPG 322UR QD-OLED X24

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

MSI MPG 322UR QD-OLED X24: MPG 322UR QD-OLED X24 · black · 31.5-inch; the 322URX and MAG 321UP X24 are different models.

SpecificationLG UltraGear evo GX9 39GX950B-BMSI MPG 322UR QD-OLED X24
Release year20262026
Display38.86-inch OLED · 5120 × 2160 · 21:9 LG—
Curvature1500R LG—
Pixel pitch0.1776 × 0.1776 mm LG—
Refresh rate165 Hz (5120 × 2160) LGUp to 240 Hz MSI
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 LGSDR 300 cd/m²; HDR peak 1000 cd/m²

The peak is not sustained full-screen brightness.

MSI
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 LG—
CalibrationFactory calibrated; hardware-calibration ready (LG Calibration Studio) LG—
Variable refreshG-SYNC Compatible; FreeSync Premium Pro LG48–240 Hz; G-SYNC Compatible, FreeSync Premium Pro MSI
DisplayPort1 × DisplayPort 2.1; UHBR20

The graphics card and cable must support this rate.

LG		1 × DisplayPort 2.1a, UHBR20 MSI
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		2 × HDMI 2.1; 4K/240 Hz input MSI
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		2 × USB-A and 1 × USB-B; 5 Gbit/s MSI
Multiple sources2 × PBP and PIP; no built-in KVM LG—
Audio2 × 7 W speakers; 4-pole headphone output; AI Sound LGHeadphone output MSI
StandTilt −8° / +15°; ±30° swivel; 110 mm height adjustment

The manual does not describe pivot rotation.

LG		110 mm height; -5°/+15° tilt; ±30° swivel MSI
Wall mount100 × 100 mm; 4 × M4 × L10 screws; optional LSW149 plate LGVESA 100 × 100 mm MSI
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		—
Weight10.7 kg with stand; 6.8 kg without LG6.6 kg without stand; 9.4 kg net with stand MSI
PowerExternal adapter; 40.3 W on-mode in SDR, 45.9 W in HDR

On-mode power demand from the product information sheet.

LG		Internal power supply; 100–240 V, 50/60 Hz MSI
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—31.5-inch flat QD-OLED MSI
Resolution—3840 × 2160; 16:9 MSI
Response time—0.03 ms GtG; not total input lag. MSI
HDR—VESA DisplayHDR True Black 500 MSI
Color—10-bit; manufacturer-stated 99% DCI-P3 coverage. MSI
USB-C—DisplayPort Alt Mode and up to 98 W Power Delivery MSI
KVM—Select USB-B or USB-C; only one USB control path is active. MSI
Multiple inputs—PIP/PBP; HDR, DSC and Adaptive-Sync cannot be used together in this mode. MSI
Motion clarity—SLMB only at 180/240 Hz; unavailable with Adaptive-Sync. MSI