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Compare LG 27EP950-B vs ASUS ROG Strix OLED XG27UCDMG

LG 27EP950-B and ASUS ROG Strix OLED XG27UCDMG are both monitors with the same Resolution (3840 x 2160), Dot Pitch (0.15 mm) and Aspect Ratio (16:9). The main differences are in Screen Size, Pixel Density, Panel Type and Brightness.

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LG 27EP950-B

ASUS ROG Strix OLED XG27UCDMG

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Brand

LG

Brand

ASUS

Model

27EP950-B
27EP950

Model

90LM0B20-B01971
XG27UCDMG
ROG Strix OLED XG27UCDMG
90LM0B20-B019B1

Release Date

📅 November 2021

Release Date

📅 August 2025

* First availability for purchase, it may not correspond to the actual market launch date.

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Screen Size

27"

Screen Size

26.5"

Resolution

3840 x 2160

Resolution

3840 x 2160

Pixel Density

163.18 PPI

Pixel Density

166.26 PPI

Dot Pitch

0.15 mm

Dot Pitch

0.15 mm

Panel Type

OLED

Panel Type

QD-OLED

Widescreen

Yes

Widescreen

Yes

Aspect Ratio

16:9

Aspect Ratio

16:9

Curved Screen

No

Curved Screen

No

Viewing Angle

178° H x 178° V

Viewing Angle

178° H x 178° V

Display Colors

1070000000

Display Colors

-

Brightness

250 cd/m²

Brightness

1000 cd/m²

Contrast Ratio

1000000:1

Contrast Ratio

-

Response Time

1 ms

Response Time

0.03 ms

Refresh Rate

60 Hz

Refresh Rate

240 Hz

Built-in Speakers

No

Built-in Speakers

No

DVI

0

DVI

0

DisplayPort

2

DisplayPort

1

HDMI

1

HDMI

2

VGA

0

VGA

0

G-SYNC Support

No

G-SYNC Support

Yes

FreeSync Support

No

FreeSync Support

Yes

Options (1)

32 inch HW Calibration
$1,999.00

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Comparison and key differences summary

Reasons to buy the LG 27EP950-B:

Bigger screen size (+0.50")
+1 Display Port

Reasons to buy the ASUS ROG Strix OLED XG27UCDMG:

Newer Product, it was released around 4 years later
Better pixel density (166.26 PPI)
More brightness (+750 cd/m²)
Less response time (-0.97 ms)
Higher refresh rate (240 Hz)
+1 Ports HDMI
Supports NVIDIA G-Sync
Supports AMD FreeSync

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