LG UltraGear 27GX700A-B / MSI MPG 271QR QD-OLED X50

LG UltraGear 27GX700A-B: 27GX700A-B: 26.5-inch QHD 280 Hz OLED gaming monitor. The 480 Hz 27GX790A-B and the 240 Hz 27GS95QE are separate models.

MSI MPG 271QR QD-OLED X50: 3CF4 · 9S6-3CF49T-001, black, 26.5-inch

SpecificationLG UltraGear 27GX700A-BMSI MPG 271QR QD-OLED X50
Release year20252025
Panel26.5-inch OLED, 4th-generation Primary RGB Tandem; 2560 × 1440 (QHD), 0.2292 mm pixel pitch

In a tandem structure light comes from more than one OLED layer; LG associates this with higher brightness and lifetime.

LG
26.5-inch flat QD-OLED MSI
Refresh and response280 Hz; 0.03 ms (GtG) LG—
BrightnessTypical 335 cd/m², minimum 300 cd/m²; up to 1500 nits peak according to LG

The peak value applies to a small part of the screen in HDR content; brightness on a full white screen is much lower.

LG
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Contrast and colour1,500,000:1; DCI-P3 99.5%; 1.07 billion colours

The monitor is factory calibrated and ready for hardware calibration.

LG
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HDRVESA DisplayHDR True Black 500; HDR10 LG—
Variable refreshAMD FreeSync Premium Pro, NVIDIA G-SYNC Compatible, VESA AdaptiveSync LG—
Connections2 × HDMI 2.1, 1 × DisplayPort 1.4 (DSC), USB 3.0 (1 upstream, 2 downstream), 4-pole headphone out

QHD at 280 Hz is reached over DisplayPort 1.4 using DSC compression. There are no built-in speakers.

LG
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Gaming featuresDual Controller, crosshair, FPS counter; hexagon lighting at the back LG—
Stand and mountingTilt −5–15°, swivel ±30°, height 110 mm, pivot; VESA 100 × 100 LG—
PowerExternal adapter, AC 100–240 V; under 0.5 W in sleep, under 0.3 W off LGInternal power board; 100–240 V, 50/60 Hz MSI
Size and weightWithout stand 605.2 × 351.0 × 45.3 mm, 4.8 kg; with stand 605.2 × 579.3 (469.3 at lowest) × 249.1 mm, 9.0 kg LG—
Release year—2025 MSI
Active area—590.42 × 333.72 mm MSI
Resolution and aspect ratio—2560 × 1440; 16:9 MSI
Refresh rate—Up to 500 Hz MSI
Variable refresh range—48–500 Hz MSI
Synchronization—G-SYNC Compatible; AMD FreeSync Premium Pro MSI
Response time—Claimed 0.03 ms GtG; not input lag MSI
SDR brightness—300 nits typical MSI
HDR brightness—True Black 500: 515 nits at 10% APL; Peak 1000: 1000 nits typical at 3% APL MSI
HDR certification—VESA DisplayHDR True Black 500 MSI
Color depth—10-bit; 1.07 billion colors MSI
DCI-P3—Claimed 99% coverage MSI
Surface—Anti-reflection coating MSI
DisplayPort—1 × DP 2.1a UHBR20 MSI
HDMI—2 × HDMI 2.1; 1440p 500 Hz support MSI
USB-C—DisplayPort Alt Mode and USB Power Delivery MSI
USB hub—2 × USB-A 5 Gbit/s; 1 × USB-B 5 Gbit/s upstream MSI
KVM—Switch one keyboard/mouse between computers MSI
Multiple sources—PIP / PBP MSI
Headphones—Headphone output MSI
Panel care—OLED Care 3.0; pixel shift and panel protection MSI
Presence sensor—AI Care Sensor; monitor or system control mode MSI
Height—110 mm adjustment MSI
Tilt and rotation—−5°–20° tilt; ±30° swivel, ±90° pivot MSI
VESA—100 × 100 mm MSI
Dimensions with stand—609.3 × 241.9 × 416.1 mm (W × D × H) MSI
Net weight—8.4 kg MSI