LG Ultragear 27GX790B-B vs ASUS ROG SWIFT PG258Q Monitor Comparison

LG Ultragear 27GX790B-B and ASUS ROG SWIFT PG258Q are both monitors with the same Aspect Ratio (16:9) and DisplayPort (1). The main differences are in Screen Size, Resolution, Pixel Density and Dot Pitch.

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LG Ultragear 27GX790B-B

ASUS ROG SWIFT PG258Q

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$994.99

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$999.99

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$999.99

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Brand

Asus

Model

27GX790B-B

Model

PG258Q

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

24.5"

Resolution

2560 x 1440

Resolution

1920 x 1080

Pixel Density

108.79 PPI

Pixel Density

89.91 PPI

Dot Pitch

0.23 mm

Dot Pitch

0.28 mm

Panel Type

WOLED Tandem

Panel Type

Widescreen

Yes

Widescreen

Yes

Aspect Ratio

16:9

Aspect Ratio

16:9

Curved Screen

Viewing Angle

178° H x 178° V

Viewing Angle

170° H x 160° V

Display Colors

16700000

Brightness

335 cd/m²

Brightness

400 cd/m²

Contrast Ratio

1,000:1

Response Time

0.02 ms

Response Time

1 ms

Refresh Rate

540 Hz

Refresh Rate

240 Hz

Built-in Speakers

DVI

DisplayPort

HDMI

VGA

G-SYNC Support

Yes

G-SYNC Support

Yes

FreeSync Support

Yes

FreeSync Support

Options (6)

	24-inch Full HD, 1ms (180Hz) $399.99
	27-Inch 4K/UHD, IPS
	27-Inch WQHD Curved, 1ms (165Hz)
	27-Inch WQHD, 1ms (165Hz) $999.80
	27-Inch WQHD, IPS (165Hz) $1,251.11
	34-Inch UWQHD 21:9 Curved, IPS (100Hz)