MSI MPG 322UR QD-OLED X24 / LG UltraGear 27GX790A-B

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

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

Specification	MSI MPG 322UR QD-OLED X24	LG UltraGear 27GX790A-B
Release year	2026	2025
Panel	31.5-inch flat QD-OLED MSI	26.5-inch (27-inch class) OLED, 16:9 The actual viewable diagonal is 26.5 inches. LG
Resolution	3840 × 2160; 16:9 MSI	—
Refresh rate	Up to 240 Hz MSI	480 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 time	0.03 ms GtG; not total input lag. MSI	0.03 ms (GtG) Grey-to-grey pixel transition time; it is not input lag. LG
Brightness	SDR 300 cd/m²; HDR peak 1000 cd/m² The peak is not sustained full-screen brightness. MSI	Typical 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
HDR	VESA DisplayHDR True Black 500 MSI	HDR10; VESA DisplayHDR True Black 400 True Black is the VESA HDR tier for very low black-level displays such as OLED. LG
Color	10-bit; manufacturer-stated 99% DCI-P3 coverage. MSI	—
DisplayPort	1 × DisplayPort 2.1a, UHBR20 MSI	—
HDMI	2 × HDMI 2.1; 4K/240 Hz input MSI	—
USB-C	DisplayPort Alt Mode and up to 98 W Power Delivery MSI	—
USB hub	2 × USB-A and 1 × USB-B; 5 Gbit/s MSI	—
Audio	Headphone output MSI	—
Variable refresh	48–240 Hz; G-SYNC Compatible, FreeSync Premium Pro MSI	VESA 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
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	—
Stand	110 mm height; -5°/+15° tilt; ±30° swivel MSI	Tilt -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
Wall mount	VESA 100 × 100 mm MSI	—
Weight	6.6 kg without stand; 9.4 kg net with stand MSI	—
Power	Internal power supply; 100–240 V, 50/60 Hz MSI	External adapter, 100–240 V; under 0.5 W in sleep, under 0.3 W off The sheet does not list typical power consumption. LG
Model	—	27GX790A-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
Resolution and pixel pitch	—	2560 × 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
Contrast	—	1,500,000:1 (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
Colour	—	DCI-P3 98.5% (CIE 1976); 10-bit (1.07 billion colours) The sheet lists a paper calibration report in the box. LG
Screen surface	—	Anti-glare, low-reflection front polariser LG
Inputs	—	2× 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 audio	—	USB 3.0: 1 upstream, 2 downstream; 4-pole headphone out (sound + mic); DTS Headphone:X No built-in speakers are listed. LG
Burn-in care	—	OLED 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 weight	—	With 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
In the box	—	Power cord, DisplayPort 2.1 cable, HDMI 2.1 cable, USB A-to-B cable, paper calibration report LG