ASUS ROG Swift OLED PG27AQDP / MSI MPG 341CQPX QD-OLED

ASUS ROG Swift OLED PG27AQDP: PG27AQDP · 26.5-inch WOLED, 2560 × 1440, 480 Hz; single model

MSI MPG 341CQPX QD-OLED: MPG 341CQPX QD-OLED, 34-inch 240 Hz curved ultrawide monitor, black. The 175 Hz MAG 341CQP QD-OLED and later revisions are separate models.

SpecificationASUS ROG Swift OLED PG27AQDPMSI MPG 341CQPX QD-OLED
Release year20242024
Panel26.5-inch WOLED; anti-glare surface

WOLED uses a white OLED layer with colour filters; each pixel makes its own light, so blacks switch fully off.

ASUS		34.18-inch curved QD-OLED, 1800R; 3440 × 1440 (UWQHD), 21:9; 0.2315 mm pixel pitch

1800R is the curve of a circle with a 1.8 m radius; it brings the edges of the wide screen closer to your eyes. The 21:9 ratio gives a wider field of view in supported games and room for two windows side by side.

MSI
Resolution2560 × 1440, 16:9 ASUS—
Refresh rateUp to 480 Hz

480 Hz improves motion clarity in fast games; reaching it also needs the graphics card to render close to 480 frames.

ASUS		—
Response time0.03 ms (GtG)

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

ASUS		—
Brightness and contrastHDR peak 1,300 cd/m²; contrast 1,500,000:1 (typical)

The peak figure applies to a small part of the screen; ASUS notes that peak brightness may vary with colour pre-calibration.

ASUS		—
Colour99% DCI-P3, 135% sRGB; 10-bit; ΔE < 2

A colour pre-calibration report is included in the box.

ASUS		10-bit (1.07 billion colours); DCI-P3 99.3%, Adobe RGB 97.8%, sRGB 139.1% (CIE 1976)

sRGB above 100% means sRGB content can look oversaturated unless shown in a clamped mode.

MSI
HDR and certificationsHDR10; VESA DisplayHDR 400 True Black ASUS—
Variable refreshVESA AdaptiveSync Display 480Hz; AMD FreeSync Premium; G-SYNC Compatible

Variable refresh matches the monitor’s rate to the graphics card’s frame rate to prevent tearing.

ASUS		G-SYNC Compatible, AMD FreeSync Premium Pro

Matching refresh to the graphics card’s frame rate reduces tearing and stutter; FreeSync Premium Pro also covers low-latency HDR operation.

MSI
Video inputs1 × DisplayPort 1.4 (DSC), 2 × HDMI 2.1 (FRL)

DSC compresses the signal in a way considered visually lossless so that 1440p 480 Hz fits within DisplayPort 1.4 bandwidth.

ASUS		1 × DisplayPort 1.4a (3440 × 1440 240 Hz); 2 × HDMI 2.1 (UWQHD 240 Hz); 1 × USB-C (DisplayPort Alt Mode, 98 W Power Delivery)

USB-C takes video from a laptop over one cable and charges it at up to 98 W; the PD charging option must be enabled in the OSD. The USB-C data path runs at USB 2.0 speed.

MSI
Other connections2 × USB 3.2 Gen 1 Type-A hub, headphone jack; no speakers ASUS—
StandTilt +20°/−5°, swivel ±30°, pivot ±90°, height 0–110 mm; 100 × 100 VESA; 1/4-inch tripod socket ASUS—
Power consumptionUnder 27 W in use; under 0.5 W standby, 0.3 W off ASUS—
Size and weightWith stand 60.5 × 54.8 × 27.4 cm, 6.2 kg; without stand 60.5 × 35.1 × 5.0 cm, 3.5 kg

ASUS states the dimensions are estimates and may vary by region.

ASUS		With stand 812 × 318 × 427 mm, 8.8 kg; without stand 812 × 130 × 361 mm, 6.66 kg MSI
Warranty3 years, including OLED burn-in

Burn-in is when long-static images leave a mark on an OLED panel; the OLED Care features aim to reduce it.

ASUS		3 years, including panel burn-in

On OLED, images left static for long periods can leave permanent marks; MSI covers this risk under warranty. Terms can vary by country.

MSI
In the boxDisplayPort cable, Ultra High Speed HDMI cable, USB 3.2 cable, power adapter, VESA mount kit, calibration report, ROG pouch ASUS—
Refresh and response—240 Hz (48–240 Hz variable range); 0.03 ms GtG

240 Hz is reached at full resolution over DisplayPort 1.4a or HDMI 2.1. 0.03 ms is pixel transition time, not total input lag. Below 48 fps the frame rate falls outside the variable refresh range.

MSI
Brightness and HDR—250 nits typical SDR; 1,000 nits peak HDR at 3% APL, 450 nits at 10% APL; VESA DisplayHDR True Black 400; 1,500,000:1 contrast

1,000 nits is reached only on bright areas covering about 3% of the screen (explosions, sun glints); as the bright area grows, OLED automatic brightness limiting kicks in.

MSI
USB and audio—2 × USB 2.0 Type-A, 1 × USB 2.0 Type-B (upstream); headphone out; no built-in speakers

The USB-A ports are for low-speed devices like keyboard and mouse; they are not suited to external SSDs.

MSI
KVM and multi-view—Built-in KVM; PiP (picture-in-picture) and PbP (picture-by-picture)

KVM shares the keyboard and mouse attached to the monitor between two computers; switching is done via the USB option in the OSD. PbP splits the screen between two sources, PiP shows one in a small window.

MSI
Surface and viewing angle—Anti-reflection surface treatment; 178° / 178° MSI
Stand and mounting—Tilt −5° / 20°, swivel −30° / 30°, height 0–100 mm; VESA 100 × 100 MSI