ASUS ROG Strix OLED XG27AQDMG Gen2 vs LG UltraGear 45GX90SA-B Monitor Comparison

ASUS ROG Strix OLED XG27AQDMG Gen2 and LG UltraGear 45GX90SA-B are both monitors with the same Viewing Angle (178° H x 178° V), Brightness (1300 cd/m²) and Response Time (0.03 ms). The main differences are in Screen Size, Resolution, Pixel Density and Dot Pitch.

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ASUS ROG Strix OLED XG27AQDMG Gen2	LG UltraGear 45GX90SA-B
Prices (Change region) In Stock $599.99 Last updated 36 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	Prices (Change region) In Stock $999.99 In Stock Free shipping $2,999.00
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Brand ASUS	Brand LG
Model XG27AQDMGR ROG Strix OLED XG27AQDMG Gen2 90LM0CC0-B01171 90LM0CC0-B03171 ROG-STRIX-OLED-XG27AQDMGR 90LM0CC0-B011B3	Model 45GX90SA-B
Release Date 📅 February 2026	Release Date -
* 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 26.5"	Screen Size 45"
Resolution 2560 x 1440	Resolution 3440 x 1440
Pixel Density 110.84 PPI	Pixel Density 82.87 PPI
Dot Pitch 0.23 mm	Dot Pitch 0.31 mm
Panel Type WOLED	Panel Type WOLED Tandem
Widescreen Yes	Widescreen Yes
Aspect Ratio 16:9	Aspect Ratio 21:9
Curved Screen No	Curved Screen Yes
Viewing Angle 178° H x 178° V	Viewing Angle 178° H x 178° V
Brightness 1300 cd/m²	Brightness 1300 cd/m²
Response Time 0.03 ms	Response Time 0.03 ms
Refresh Rate 240 Hz	Refresh Rate 240 Hz
Built-in Speakers No	Built-in Speakers Yes
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