LG UltraGear 27GX700A-B / ASUS ROG Swift OLED PG34WCDM

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.

ASUS ROG Swift OLED PG34WCDM: PG34WCDM (2024). 34-inch class (33.94-inch) 800R curved WOLED.

SpecificationLG UltraGear 27GX700A-BASUS ROG Swift OLED PG34WCDM
Release year20252024
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		33.94-inch WOLED; 3440 × 1440; 21:9; 800R curve; anti-glare (matte) surface

800R means the screen curves like an arc of a circle with an 800 mm radius. Pixel pitch is 0.231 mm.

ASUS
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		—
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		—
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		—
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 LGTilt +20° / −5°, swivel ±15°, height 0–110 mm; VESA 100 × 100 mm; 1/4-inch tripod socket; Kensington lock

The tripod socket is for mounting a camera or light on top of the stand.

ASUS
PowerExternal adapter, AC 100–240 V; under 0.5 W in sleep, under 0.3 W off LG31 W consumption; external power adapter; 100–240 V ASUS
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 LGWith stand 78.6 × 55.1 × 29.3 cm and 8.4 kg; without stand 78.6 × 37.2 × 16.1 cm and 5.6 kg

ASUS notes dimensions and weight may vary by region.

ASUS
Refresh rate and response—240 Hz; 0.03 ms (GtG); Adaptive-Sync VRR

ASUS lists VESA AdaptiveSync Display 240Hz, AMD FreeSync Premium Pro and G-SYNC Compatible certification.

ASUS
Brightness and HDR—1300 cd/m² HDR peak brightness; HDR10; VESA DisplayHDR 400 True Black

ASUS gives this figure, asterisked, as peak HDR brightness; it is not sustained full-screen brightness.

ASUS
Colour—10-bit (1.07 billion colours); DCI-P3 99%, sRGB 135%; ΔE ≤ 2; 1,500,000:1 contrast

A factory colour calibration report is in the box.

ASUS
Video inputs—1 × DisplayPort 1.4 (DSC); 2 × HDMI 2.1 (FRL); 1 × USB-C (DP Alt Mode, 90 W power)

The USB-C input can take video from a laptop over one cable while charging it at up to 90 W. All three inputs support vertical frequencies up to 240 Hz.

ASUS
Other connections and features—USB hub: 2 × USB 3.2 Gen 1 Type-A, 1 × USB 2.0 Type-A; KVM switch; optical audio (S/PDIF) out; headphone out; no built-in speakers; proximity sensor

With KVM a keyboard and mouse plugged into the monitor can be shared between two computers.

ASUS