ASUS ROG Swift OLED PG27UCDM 27"

26.5" QD-OLED · 3840× 2160 · 166 PPI

Optimal Viewing Distance

53cm

Retina distance: 52.5cm / 20.7in

Specifications

ASUS ROG Swift OLED PG27UCDM 27" specifications
Brand	ASUS
Model	ROG Swift OLED PG27UCDM 27"
Screen Size	26.5"
Resolution	3840×2160
Panel	QD-OLED
Refresh Rate	240 Hz
Variable Refresh Rate (VRR)	FreeSync Premium Pro
Response Time	0.0 ms GTG
HDR Certification	DisplayHDR True Black 400
SDR Brightness	250 nits
HDR Peak Brightness	1000 nits
Contrast Ratio	1:1,500,000
Ports	2x HDMI · 1x DP · USB-C · USB Hub
USB-C Power Delivery	90 W
Color Gamut	sRGB 145% · DCI-P3 99% · Adobe RGB 94%
Viewing Angle	178° — Excellent
Pixel Density (PPI)	166
Aspect Ratio	16:9
Year	2025

Compare with...

vs ASUS ROG Swift PG27AQDP 27" 111 PPI · 26.5" vs ASUS ProArt PA279CRV 27" 163 PPI · 27" vs ASUS ROG Strix XG309CM 94 PPI · 29.5" vs ASUS ROG Swift PG32UCDM3 140 PPI · 31.5" vs ASUS ROG Swift OLED PG34WCDM 34" 110 PPI · 33.94" vs ASUS ProArt PA348CGV 34" 110 PPI · 34"

Frequently Asked Questions

What is the optimal viewing distance for the ASUS ROG Swift OLED PG27UCDM 27"?

The optimal viewing distance for the ASUS ROG Swift OLED PG27UCDM 27" (26.5") is approximately 53cm. At this distance, individual pixels become invisible to the human eye.

What is the PPI of the ASUS ROG Swift OLED PG27UCDM 27"?

The ASUS ROG Swift OLED PG27UCDM 27" has a pixel density of 166 PPI (pixels per inch) with a 3840×2160 resolution on a 26.5" display.

Is the ASUS ROG Swift OLED PG27UCDM 27" good for desktop work?

With 166 PPI and a 26.5" QD-OLED display, the ASUS ROG Swift OLED PG27UCDM 27" is very good for desktop work when viewed from the recommended distance of 53cm.

Methodology & Sources

Formula: Retina distance (cm) = 3438 / PPI. Displayed values are rounded for readability.

Sources: Official manufacturer spec sheets and product pages. Specs are normalized before comparisons.

Last updated: March 22, 2026

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