LG UltraGear OLED 34GX900A vs MSI MPG 341CQPX QD-OLED

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

UltraGear OLED 34GX900A compared with MPG 341CQPX QD-OLED
LGUltraGear OLED 34GX900AMSIMPG 341CQPX QD-OLED
Overview
ReleasedSeptember 2025May 2024
Display
Screen size34″34.18″
Resolution3440 × 1440 (UWQHD)3440 × 1440 (UWQHD)
Sharpness110 pixels per inch (better)109 pixels per inch
PanelOLED (LG Display WOLED with MLA+ (TFTCentral))QD-OLED
Refresh rate240 Hz240 Hz
Response time (grey to grey)0.03 ms0.03 ms
Brightness (typical)275 nits (better)250 nits
HDR peak brightness1,300 nits (better)1,000 nits
HDR certificationDisplayHDR True Black 400DisplayHDR True Black 400
HDR formatsHDR10–
Contrast ratio1,500,000:11,500,000:1
Colour range98.5% DCI-P3 (typical)99.3% DCI-P3, 100% sRGB (CIE 1976 coverage)
DCI-P3 coverage98.5%99.3% (better)
Colour accuracy (Delta E)–Below 2
ShapeCurved (800R)Curved (1800R)
Adaptive syncFreeSync Premium Pro, G-Sync CompatibleVESA AdaptiveSync
Colour depth1.07 billion colours10-bit, 1.07 billion colours
sRGB coverage–100% (CIE 1976 coverage)
Adobe RGB coverage–97.8% (CIE 1976 coverage)
Colour accuracy–Delta E ≤ 2 (QD Premium Color)
Colour modesReader Mode, Colour Weakness mode–
HDR detailHDR10; VESA DisplayHDR True Black 400; 1,300 nits peak (TFTCentral, from LG)VESA DisplayHDR True Black 400; 1,000 nits peak
Variable refresh range–48–240 Hz
Viewing angles178° / 178°178° / 178°
Pixel pitch0.231 × 0.231 mm0.2315 × 0.2315 mm
Burn-in protection–MSI OLED Care 2.0; 3-year warranty including burn-in
CalibrationFactory calibrated; hardware calibration ready (LG Calibration Studio)–
Connections
Video inputs2 × HDMI 2.1, DisplayPort 1.4, USB-C2 × HDMI 2.1, DisplayPort 1.4a, USB-C
USB-C chargingUp to 65 WUp to 98 W (better)
USB ports2 × USB-A2 × USB-A
KVM switch–Yes
SpeakersYesNo
HDMI detail2 × HDMI 2.1 (cable included)2 × HDMI 2.1, 3440 × 1440 at 240 Hz, full 48 Gbps (Console Mode); HDCP 2.3
DisplayPort detailDisplayPort 1.4 with DSCDisplayPort 1.4a; HDCP 2.3
USB-C detailUSB-C with DisplayPort Alt Mode and 65 W power deliveryUSB-C with DisplayPort Alt Mode and 98 W power delivery
USB hub detail2 × USB 3.0 downstream2 × USB 2.0 Type-A, 1 × USB-B upstream
Picture by picturePIP; 2-way PBP–
Audio out4-pole headphone out (sound and mic)Headphone out
Speaker detail2 × 7 W–
Design
Stand adjustsHeight, tilt, swivelHeight, tilt, swivel
VESA mountYesYes
Weight with stand10.4 kg8.9 kg
Height adjustment–100 mm
Tilt–−5° to 20°
Swivel–−30° to 30°
VESA pattern100 × 100 mm100 × 100 mm
Size with stand784.1 × 291.8 × 470.4–580.4 mm (W × D × H)812 × 318 × 427 mm (W × D × H)
Size without stand784.1 × 167.1 × 358.3 mm (W × D × H)812 × 130 × 361 mm (W × D × H)
Weight without stand6.2 kg6.8 kg
Colours–Black
ControlsUser-defined key; auto input switch; dual controller; game features include Black Stabiliser, Dynamic Action Sync, Crosshair and FPS Counter–
Power and support
Power useLess than 0.5 W sleep, less than 0.3 W off50 W on mode; 0.5 W standby; 0.3 W off
Energy class–G
Power supplyExternal adapter, 100–240 VInternal, 100–240 V
Software–MSI Gaming Intelligence app
Warranty–3 years
In the boxHDMI 2.1 cable, USB-C cable, DisplayPort cableDisplayPort cable, HDMI cable, USB A-to-B cable, power cord, quick guide

More comparisons