LG UltraGear 45GX950A-B / ASUS ROG Swift OLED PG27AQDM

LG UltraGear 45GX950A-B: 45GX950A-B: 44.5-inch 800R curved 5K2K (5120 × 2160) OLED, 165 Hz / Dual-Mode 330 Hz. The same-size 45GX950B (UltraGear evo) and the WQHD 45GX90SB-B are separate.

ASUS ROG Swift OLED PG27AQDM: PG27AQDM: a 26.5-inch (27-inch class) 1440p 240 Hz WOLED gaming monitor. The brighter PG27AQDP (480 Hz) and the QD-OLED PG27UCDM are separate models.

Specification	LG UltraGear 45GX950A-B	ASUS ROG Swift OLED PG27AQDM
Release year	2025	2023
Panel	44.5-inch WOLED, 21:9, 800R curve; 5120 × 2160 (5K2K), 0.2035 mm pixel pitch (about 125 ppi); MLA+ 800R means the screen curves along a circle with an 80 cm radius, so the edges sit closer to the eyes. MLA+ (micro lens array) directs OLED pixel light forward to raise brightness. LG	26.5-inch WOLED; 2560 × 1440 (16:9); 0.229 mm pixel pitch; anti-glare surface WOLED is LG Display’s panel type using a white OLED layer with colour filters; each pixel makes its own light, so blacks go fully dark. Long-lasting static images raise the risk of burn-in. ASUS
Refresh rate and response	165 Hz at 5K2K; 330 Hz at WFHD with VESA-certified Dual-Mode; 0.03 ms (GtG) Dual-Mode doubles the refresh rate by lowering the resolution: 330 Hz for fast competitive games, 5K2K at 165 Hz for detailed games. LG	240 Hz (DisplayPort); 120 Hz over HDMI; 0.03 ms (GtG) 240 Hz is only available through the DisplayPort input; ASUS’s signal table limits the HDMI inputs to 120 Hz. For PC games above 120 Hz, use a DisplayPort cable. ASUS
Brightness and HDR	275 cd/m² typical (minimum 250); HDR10, VESA DisplayHDR True Black 400; DCI-P3 98.5%; 10-bit; contrast 1,500,000:1 (typical) DisplayHDR True Black 400 is VESA’s certification for screens that can turn black fully off, such as OLED, and requires 400 nits peak brightness. LG	—
Sync	NVIDIA G-SYNC Compatible, AMD FreeSync Premium Pro, VRR Variable refresh rate matches the monitor to the graphics card’s frame rate, reducing tearing and stutter. LG	—
Inputs	2 × HDMI, 1 × DisplayPort 2.1 (DSC), 1 × USB-C (5120 × 2160 at 165 Hz, data, 90 W power); 2 × USB 3.0 downstream; 4-pole headphone/mic DSC compresses the image visually losslessly so high resolution and refresh rate fit through one cable. USB-C gives a laptop video, data and 90 W charging over one cable. LG notes NVIDIA released a driver in April 2025 that fixed screen blackouts seen over DisplayPort. LG	1 × DisplayPort 1.4 DSC; 2 × HDMI 2.0; headphone jack; 2 × USB 3.2 Gen 1 Type-A hub DSC (Display Stream Compression) compresses the signal without visible loss so DisplayPort 1.4 has enough bandwidth for high refresh rates. There are no speakers and no USB-C input. ASUS
PiP and PbP	PIP and 2-source PBP PiP shows one source in a small window, and PbP splits the screen to show two sources side by side, for example a computer and a game console at once. LG	—
Audio	10 W × 2 stereo speakers, DTS Headphone:X LG	—
Stand and mounting	Tilt, height and swivel adjustment; 100 × 100 mm VESA mounting LG	Tilt +20° / −5°; swivel ±30°; pivot ±90°; 0–110 mm height; 1/4-inch tripod socket; VESA 100 × 100 (with kit); Aura RGB The VESA mount kit is included in the box. ASUS
Power	External adapter (20 V / 18 A); under 0.5 W in sleep LG	External power adapter; 100–240 V, 50/60 Hz ASUS
Size and weight	With stand 991.6 × 545.6–665.6 × 342 mm, 14 kg; without stand 991.6 × 460.7 × 225.5 mm, 9.4 kg LG	With stand 60.5 × 54.8 × 27.4 cm, 6.9 kg; without stand 60.5 × 35.1 × 5.0 cm, 4.2 kg ASUS
Brightness and contrast	—	HDR peak 1,000 cd/m²; contrast 1,500,000:1; 10-bit (1.07 billion colours) Peak brightness applies to a small part of the screen; with a full white screen brightness drops noticeably. ASUS notes peak brightness may vary with colour pre-calibration. ASUS
Colour	—	DCI-P3 99%; sRGB 135%; factory pre-calibration report ASUS
HDR	—	HDR10 Dolby Vision and HDR10+ support are not listed. ASUS
Variable refresh	—	VESA AdaptiveSync Display 240Hz; AMD FreeSync Premium; G-SYNC Compatible Variable refresh matches the monitor to the graphics card’s frame rate to reduce tearing and stutter. ASUS
OLED care and warranty	—	ASUS OLED Care; 2-year warranty (including panel burn-in) The warranty also covers panel burn-in; terms may vary by region. ASUS
Certifications	—	TÜV Flicker-free; TÜV Low Blue Light (hardware solution) ASUS