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Compare LG Ultragear 27GX790B-B vs Acer ED242QR wi

LG Ultragear 27GX790B-B and Acer ED242QR wi are both monitors with the same Aspect Ratio (16:9) and Viewing Angle (178° H x 178° V). The main differences are in Screen Size, Resolution, Pixel Density and Dot Pitch.

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LG Ultragear 27GX790B-B

Acer ED242QR wi

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Brand

LG

Brand

Acer

Model

27GX790B-B

Model

ED242QR wi

Release Date

📅 December 2025

Release Date

-

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

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Screen Size

27"

Screen Size

23.6"

Resolution

2560 x 1440

Resolution

1920 x 1080

Pixel Density

108.79 PPI

Pixel Density

93.34 PPI

Dot Pitch

0.23 mm

Dot Pitch

0.27 mm

Panel Type

WOLED Tandem

Panel Type

VA

Widescreen

Yes

Widescreen

Yes

Aspect Ratio

16:9

Aspect Ratio

16:9

Curved Screen

No

Curved Screen

Yes

Viewing Angle

178° H x 178° V

Viewing Angle

178° H x 178° V

Brightness

335 cd/m²

Brightness

250 cd/m²

Response Time

0.02 ms

Response Time

4 ms

Refresh Rate

540 Hz

Refresh Rate

75 Hz

Built-in Speakers

No

Built-in Speakers

No

DVI

0

DVI

0

DisplayPort

1

DisplayPort

0

HDMI

2

HDMI

1

VGA

0

VGA

1

G-SYNC Support

Yes

G-SYNC Support

No

FreeSync Support

Yes

FreeSync Support

Yes

-

Options (3)

	31.5-Inch Full HD (1920 x 1080)
	23.6-Inch Full HD (1920 x 1080), 144Hz $149.99
	27-Inch Full HD (1920 x 1080), 144Hz $179.99

Comparison and key differences summary

Reasons to buy the LG Ultragear 27GX790B-B:

Bigger screen size (+3.40")
Higher Screen Resolution (2560 x 1440 pixel)
Better pixel density (108.79 PPI)
More brightness (+85 cd/m²)
Less response time (-3.98 ms)
Higher refresh rate (540 Hz)
Flat screen
+1 Display Port
+1 Ports HDMI
Supports NVIDIA G-Sync

Reasons to buy the Acer ED242QR wi:

48% cheaper, you can save $479.99
Curved screen
+1 Ports VGA

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