ASUS ROG Swift OLED PG27UCDM / LG UltraGear 27GP750-B

ASUS ROG Swift OLED PG27UCDM: PG27UCDM; a single 26.5-inch 4K 240 Hz model. The larger PG32UCDM is a separate monitor.

LG UltraGear 27GP750-B: 27GP750-B; 27-inch Full HD 240 Hz IPS gaming monitor (Canadian spec table). The higher-resolution 27GP850-B and the OLED UltraGear models are separate products.

SpecificationASUS ROG Swift OLED PG27UCDMLG UltraGear 27GP750-B
Release year20252021
Panel26.5-inch QD-OLED, 16:9; 3840 × 2160 (4K); 0.153 mm pixel pitch

The small pixel pitch (about 166 ppi) makes text and interface edges look sharper than on 27-inch 1440p monitors.

ASUS		27-inch (68.5 cm) IPS; 1920 × 1080; 16:9; pixel pitch 0.3108 mm

A 0.31 mm pixel pitch works out to about 82 ppi at 27 inches. Viewing angles are 178°/178°.

LG
Refresh rate and VRR240 Hz; 48–240 Hz variable refresh on HDMI and DP/USB-C inputs; FreeSync Premium Pro, G-SYNC Compatible, VESA AdaptiveSync Display 240Hz

All inputs support 240 Hz at 4K; variable refresh prevents tearing and stutter as the game frame rate moves between 48 and 240.

ASUS		—
Response time0.03 ms (GtG)

Grey-to-grey transition time; because OLED pixels change much faster than LCD, motion blur depends mostly on the refresh rate.

ASUS		—
Brightness and contrast1,000 cd/m² HDR peak; 1,500,000:1 typical contrast

1,000 cd/m² is a peak reached on a small area of the screen; a full white screen stays much lower. ASUS gives no typical SDR brightness value.

ASUS		400 cd/m² typical (minimum 320); 1000:1 typical contrast (minimum 700:1) LG
HDRVESA DisplayHDR 400 True Black; HDR10; Dolby Vision

The True Black tier measures OLED’s very low black level; 400 is the minimum peak brightness threshold in the certification test. Dolby Vision support lets compatible sources use scene-by-scene HDR data.

ASUS		—
Colour99% DCI-P3, 145% sRGB; 10-bit (1.07 billion colours); ΔE < 2

ΔE < 2 means factory calibration deviates from target colours by an amount most people cannot see; a calibration report is included.

ASUS		—
Inputs1 × DisplayPort 2.1; 2 × HDMI 2.1 (FRL); 1 × USB-C (DP Alt Mode, 90 W power delivery); headphone jack

USB-C takes video over a single cable and supplies up to 90 W to a laptop. The HDMI 2.1 inputs can be used for 4K 120 Hz on consoles.

ASUS		—
USB and KVM3 × USB-A 5 Gbps (USB 3.2 Gen 1) hub; KVM switch

KVM moves the keyboard and mouse attached to the monitor between two computers when the input is switched.

ASUS		—
SpeakersNone

A headphone jack or external speakers are needed for audio.

ASUS		—
OLED protectionASUS OLED Care; Neo Proximity Sensor

OLED Care includes burn-in prevention functions such as pixel cleaning, screen shift, logo brightness adjustment and taskbar detection. The proximity sensor dims the screen when the user leaves, reducing static image time.

ASUS		—
Power consumptionUnder 80 W in operation; under 0.5 W in standby, 0.3 W off ASUS—
Stand and mountingTilt +20°/−5°, swivel ±30°, pivot ±90°, height 0–110 mm; VESA 100 × 100; 1/4-inch tripod socket

The tripod socket is used to mount accessories such as a camera or light on the stand.

ASUS		Height, tilt and pivot adjustment; VESA 100 × 100

Height adjustment changes the overall height with the stand between 465.9 and 575.9 mm.

LG
Dimensions and weightWith stand 61.03 × 54.95 × 21.88 cm, 7.62 kg; without stand 61.03 × 36.92 × 7.05 cm, 4.97 kg ASUS—
Warranty3 years, including panel burn-in

Warranty terms can vary by country.

ASUS		—
Refresh and response—Up to 240 Hz; 1 ms (GtG, in Faster mode)

LG quotes 1 ms for grey-to-grey transitions at the fastest overdrive setting. Dynamic Action Sync aims to reduce input lag, and Black Stabilizer brings out detail in dark scenes.

LG
Variable refresh—NVIDIA G-SYNC Compatible; AMD FreeSync Premium

Variable refresh matches the monitor’s refresh rate to the graphics card’s frame rate to reduce tearing and stutter.

LG
Colour and HDR—99% sRGB typical (minimum 95%, CIE1931); 16.7 million colours; HDR10; factory calibrated

HDR10 signals are accepted; LG lists no DisplayHDR certification in the spec table, and typical brightness is 400 cd/m².

LG
Connections—2 × HDMI; 1 × DisplayPort 1.4; 3.5 mm headphone out

A DisplayPort cable is in the box. There are no built-in speakers or USB hub.

LG
Power—External adapter; 45 W typical, 48 W maximum; under 0.5 W in sleep LG
Size and weight—Without stand 614.2 × 364.8 × 51.7 mm, 3.9 kg; with stand 6 kg LG