ASUS ROG Strix OLED XG27UCDMG / MSI MAG 271QPX QD-OLED E2

ASUS ROG Strix OLED XG27UCDMG: XG27UCDMG · 26.5-inch 4K 240 Hz QD-OLED

MSI MAG 271QPX QD-OLED E2: 26.5-inch flat MAG 271QPX QD-OLED E2, black (9S6-3CD89T). The original 360 Hz MAG 271QPX QD-OLED and the MPG 271QRX are different models.

SpecificationASUS ROG Strix OLED XG27UCDMGMSI MAG 271QPX QD-OLED E2
Release year20252024
Panel26.5-inch (27-inch class) QD-OLED, 16:9, anti-reflection surface

QD-OLED pairs self-emitting pixels with a quantum-dot colour layer; each pixel switches off individually, so blacks are fully dark.

ASUS		26.5-inch flat QD-OLED; 2560 × 1440 (WQHD), 16:9; anti-reflection surface

In QD-OLED, light from a blue OLED layer is converted to red and green by quantum dots; because each pixel emits its own light, blacks turn fully off.

MSI
Resolution and refresh3840 × 2160, 240 Hz

The 4K 240 Hz signal travels over DisplayPort 1.4 with DSC compression, or over HDMI 2.1 depending on graphics-card support.

ASUS		—
Response time0.03 ms (GtG)

This is the grey-to-grey pixel transition time, not total input lag.

ASUS		0.03 ms (GtG)

This is grey-to-grey transition time; OLED’s very fast transitions reduce motion blur, but it is not the same as total input lag.

MSI
Brightness1000 cd/m² HDR peak

ASUS notes peak brightness may vary with colour pre-calibration; the peak is reached on a small screen area.

ASUS		—
Contrast1,500,000:1 (typical) ASUS—
Colour99% DCI-P3, 145% sRGB; ΔE < 2; 10-bit

Factory calibration (ΔE < 2) means colours are set close enough to target that differences are hard to see.

ASUS		10-bit (1.07 billion colours); 99.1% DCI-P3 and 100% sRGB coverage (CIE 1976); ΔE ≤ 2

The wide gamut gives saturated colour in HDR and games; MSI states colour accuracy as ΔE ≤ 2.

MSI
HDRHDR10; VESA DisplayHDR 400 True Black ASUS—
Inputs1 × DisplayPort 1.4 (DSC); 2 × HDMI 2.1 (FRL); 1 × USB-C (DP Alt Mode, 90 W power)

The USB-C input takes video from a laptop and charges it at up to 90 W over one cable. HDMI 2.1 suits consoles at 4K 120 Hz.

ASUS		2 × HDMI 2.1 (HDCP 2.3), 1 × DisplayPort 1.4a, 1 × USB-C (DP Alt, 15 W PD), headphone out

The HDMI 2.1 inputs support WQHD 240 Hz on consoles at 48 Gbps (Console Mode). USB-C with 15 W only charges small devices such as phones and is not enough to charge a laptop; the port runs at USB 2.0 speed and there is no separate USB hub.

MSI
USB hub and audio3 × USB 3.2 Gen 1 Type-A; headphone jack ASUS—
Variable refreshFreeSync Premium Pro, G-SYNC Compatible; VESA AdaptiveSync Display 240 Hz

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

ASUS		—
FeaturesASUS OLED Care, KVM switch, Extreme Low Motion Blur, Neo Proximity Sensor, flicker-free

KVM shares a keyboard and mouse connected to the monitor between two computers. The proximity sensor dims the screen when the user leaves to reduce OLED wear.

ASUS		—
Power consumption< 80 W; < 0.5 W in power saving; < 0.3 W off; 100–240 V ASUS40 kWh/1000 h in on mode; standby 0.5 W; off 0.3 W; energy class G MSI
StandTilt +20°/−5°, swivel ±45°, pivot ±90°, 0–120 mm height; VESA 100 × 100; 1/4-inch tripod socket

The tripod socket lets a camera or light be mounted on the stand.

ASUS		—
Dimensions and weightWith stand 61.30 × 50.94 × 16.87 cm, 7.44 kg; without stand 61.03 × 36.92 × 6.65 cm, 5.0 kg ASUS—
Warranty3 years (including panel burn-in)

Warranty terms may vary by country.

ASUS		3 years including OLED burn-in

Terms may vary by country.

MSI
In the boxDisplayPort, Ultra High Speed HDMI, USB 3.2 and USB-C cables; power cord; VESA mount kit; microfibre cloth ASUSDisplayPort cable, HDMI cable, power cord, quick guide MSI
Refresh rate—240 Hz; Adaptive-Sync 48–240 Hz; 2560 × 1440 at 240 Hz over DisplayPort 1.4a, both HDMI 2.1 ports and USB-C (DP Alt)

240 Hz shows 240 frames per second for smooth, clear motion in fast games, provided the graphics card can produce that frame rate. Adaptive-Sync matches the display’s refresh to the card’s frame rate to prevent tearing.

MSI
Brightness and HDR—SDR 250 nits (typical); HDR 450 nits at 10% window and 1000 nits peak at 3% window; VESA DisplayHDR True Black 400

OLED brightness falls as the lit area grows; 1000 nits appears only in very small bright highlights. True Black 400 certifies deep blacks with at least 400 nits HDR performance.

MSI
Contrast and viewing angle—1,500,000:1 (typical); 178° / 178° MSI
PiP / PbP—Picture-in-picture and picture-by-picture support

Shows two sources at once: in PiP one is a small window, in PbP the two sit side by side.

MSI
OLED care and cooling—MSI OLED Care 2.0; fanless design with graphene film and custom heatsink

OLED Care includes protection functions that reduce the risk of static images leaving marks (burn-in). With no fan, it makes no noise while running.

MSI
Stand and mounting—Tilt -5°/20°, swivel ±30°, height 0–110 mm, pivot ±90°; VESA 100 × 100 mm MSI
Size and weight—609 × 242 × 416 mm with stand; 609 × 72 × 362 mm without; 5.3 kg without stand MSI