ASUS ROG Swift OLED PG32UCDM / LG UltraGear 27GR93U-B

ASUS ROG Swift OLED PG32UCDM: PG32UCDM, 31.5-inch 4K 240 Hz QD-OLED. The similarly named PG32UCDP and the 27-inch PG27UCDM are separate products.

LG UltraGear 27GR93U-B: 27GR93U-B, the 27-inch 4K 144 Hz IPS model; the spec table is from LG UK, dimensions and weights from LG Canada. The 32-inch 32GR93U and the OLED UltraGear models are separate products.

SpecificationASUS ROG Swift OLED PG32UCDMLG UltraGear 27GR93U-B
Release year20242023
Panel31.5-inch QD-OLED; 3840 × 2160 (16:9); 240 Hz; 0.03 ms (GtG); 10-bit; 0.182 mm pixel pitch; anti-reflection surface

In QD-OLED, blue OLED light is converted to red and green by quantum dots, keeping colours saturated. The semi-glossy surface can make blacks look grey in a bright room.

ASUS		27-inch (68.5 cm) IPS, 3840 × 2160, 16:9; anti-glare surface

At 27 inches, 4K means high pixel density; text and detail look very sharp, though Windows usually needs scaling. IPS panels offer wide viewing angles and good colour, but blacks are not as deep as OLED.

LG
Brightness and contrastHDR peak 1000 cd/m²; contrast 1,500,000:1

1000 cd/m² is a peak reached on a small part of the screen; full-screen white is much dimmer. ASUS notes the value can vary due to pre-calibration.

ASUS		—
Colour and HDR99% DCI-P3; HDR10 and Dolby Vision; VESA DisplayHDR 400 True Black; factory calibration e-report ASUS—
SyncAdaptive-Sync; FreeSync Premium Pro; G-SYNC Compatible; ELMB

ELMB is a mode that inserts black between frames to reduce motion blur.

ASUS		—
Inputs1 × DisplayPort 1.4 (DSC); 2 × HDMI 2.1 (FRL); 1 × USB-C (DisplayPort Alt Mode, 90 W power delivery)

4K 240 Hz 10-bit over DisplayPort 1.4 uses Display Stream Compression (DSC). The 90 W USB-C port can drive and charge a laptop over a single cable.

ASUS		—
USB and audio3 × USB 3.2 Gen 1 Type-A hub; KVM switch; earphone jack; S/PDIF optical out; no speakers

KVM lets two computers share the same keyboard and mouse through the monitor.

ASUS		—
OLED careASUS OLED Care; proximity sensor; flicker-free

The proximity sensor dims the screen when the user leaves the desk to reduce burn-in risk; some owners wrote that they turned it off.

ASUS		—
StandTilt +20° / −5°; swivel ±15°; height 0–80 mm; VESA 100 × 100; tripod socket ASUS—
Size and weight71.8 × 57.9 × 27.4 cm with stand; 8.8 kg with stand, 6.0 kg without ASUSWith stand 613.5 × 467.7–577.7 × 253.7 mm, 6.4 kg; without stand 613.5 × 371.6 × 51.3 mm, 4.5 kg LG
Warranty3 years, including panel burn-in

Warranty length and coverage can vary by country.

ASUS		—
Refresh rate and response time—144 Hz; 1 ms (GtG, Faster mode)

LG notes that 1 ms is only achieved with Game Adjust → Response Time → Faster. 144 Hz requires a graphics card with DisplayPort 1.4 (DSC) or HDMI 2.1.

LG
Contrast and viewing angle—1000:1 typical (700:1 minimum); 178° / 178°

1000:1 is ordinary for IPS: blacks can look grey in a dark room. No local dimming is listed.

LG
Colour—DCI-P3 95% typical (90% minimum, CIE1976); 10-bit (8-bit + FRC), 1.07 billion colours; hardware calibration ready

8-bit + FRC imitates 10-bit gradations with rapid dithering; usually invisible to the eye. Hardware calibration writes settings to the monitor’s own memory.

LG
HDR—HDR10; VESA DisplayHDR 400; HDR Effect

DisplayHDR 400 is the entry tier of HDR certification; without local dimming, the bright-to-dark range of HDR content stays limited. HDR Effect is a picture mode that makes SDR content look more HDR-like.

LG
Adaptive sync—NVIDIA G-SYNC Compatible; AMD FreeSync Premium; VRR up to 144 Hz

Matches the monitor’s refresh to the game’s frame rate, reducing tearing and stutter. According to LG, VRR needs a graphics card with DisplayPort 1.4 (DSC) or HDMI 2.1.

LG
Connections—2 × HDMI (2.1), 1 × DisplayPort 1.4 (DSC); USB 3.0 upstream 1, downstream 2; 4-pole headphone out (audio + mic), DTS Headphone:X

DSC (Display Stream Compression) compresses the 4K 144 Hz signal, which exceeds DisplayPort 1.4 bandwidth, with no visible loss. There is no USB-C input and no built-in speakers are listed.

LG
Gaming features—Black Stabilizer, Dynamic Action Sync, Crosshair, FPS Counter, User Defined Key; Hexagon RGB LED lighting

Black Stabilizer brightens dark areas so opponents in shadow are visible; Crosshair places a fixed aiming point at screen centre. Crosshair is unavailable while FPS Counter is on.

LG
Stand and mounting—Height, tilt, pivot; detachable base; cable holder and mouse cable holder

Per LG Canada dimensions, height with stand ranges from 467.7 to 577.7 mm, so about 110 mm of height adjustment. Pivot turns the screen to portrait; swivel is not listed.

LG
Power—External adapter, 19 V / 3.42 A (65 W); 50 W typical, 55 W max; under 0.5 W in sleep LG