LG Ultragear 27GX790B-B vs ASUS ROG Strix OLED XG27AQDMG Gen2 Monitor Comparison

LG Ultragear 27GX790B-B and ASUS ROG Strix OLED XG27AQDMG Gen2 are both monitors with the same Resolution (2560 x 1440), Dot Pitch (0.23 mm) and Aspect Ratio (16:9). The main differences are in Screen Size, Pixel Density, Panel Type and Brightness.

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LG Ultragear 27GX790B-B	ASUS ROG Strix OLED XG27AQDMG Gen2
Prices (Change region) In Stock $994.99 Last updated 54 minutes ago. In Stock Free shipping $999.99 In Stock $999.99 In Stock $999.99 In Stock Free shipping $999.99 Show 2 more offers	Prices (Change region) In Stock $599.99 Last updated 54 minutes ago. In Stock $629.99 In Stock Free shipping $649.00 In Stock Free shipping $649.00 In Stock Free shipping $664.99 Show 2 more offers
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Brand LG	Brand ASUS
Model 27GX790B-B	Model XG27AQDMGR ROG Strix OLED XG27AQDMG Gen2 90LM0CC0-B01171 90LM0CC0-B03171 ROG-STRIX-OLED-XG27AQDMGR 90LM0CC0-B011B3
Release Date 📅 December 2025	Release Date 📅 February 2026
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews Add a product review
Price history View Details ►	Price history View Details ►
Screen Size 27"	Screen Size 26.5"
Resolution 2560 x 1440	Resolution 2560 x 1440
Pixel Density 108.79 PPI	Pixel Density 110.84 PPI
Dot Pitch 0.23 mm	Dot Pitch 0.23 mm
Panel Type WOLED Tandem	Panel Type WOLED
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
Brightness 335 cd/m²	Brightness 1300 cd/m²
Response Time 0.02 ms	Response Time 0.03 ms
Refresh Rate 540 Hz	Refresh Rate 240 Hz
Built-in Speakers No	Built-in Speakers No
DVI 0	DVI 0
DisplayPort 1	DisplayPort 1
HDMI 2	HDMI 2
VGA 0	VGA 0
G-SYNC Support Yes	G-SYNC Support Yes
FreeSync Support Yes	FreeSync Support Yes