ASUS ROG Strix OLED XG27AQDMG Gen2 vs Alienware AW2521H Monitor Comparison

ASUS ROG Strix OLED XG27AQDMG Gen2 and Alienware AW2521H are both monitors with the same Aspect Ratio (16:9), Viewing Angle (178° H x 178° V) and DisplayPort (1). The main differences are in Screen Size, Resolution, Pixel Density and Dot Pitch.

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ASUS ROG Strix OLED XG27AQDMG Gen2	Alienware AW2521H
Prices (Change region) In Stock $599.99 Last updated 57 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) Out of Stock $186.99 Out of Stock Free shipping $379.99 Out of Stock Free shipping $399.99 Out of Stock + $23.47 Shipping $429.99 Out of Stock + $9.96 Shipping $548.99 Out of Stock $649.99 - Buy now Show 4 more offers
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Brand ASUS	Brand Alienware
Model XG27AQDMGR ROG Strix OLED XG27AQDMG Gen2 90LM0CC0-B01171 90LM0CC0-B03171 ROG-STRIX-OLED-XG27AQDMGR 90LM0CC0-B011B3	Model AW2521H
Release Date 📅 February 2026	Release Date 📅 February 2021
* 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 24.5"
Resolution 2560 x 1440	Resolution 1920 x 1080
Pixel Density 110.84 PPI	Pixel Density 89.91 PPI
Dot Pitch 0.23 mm	Dot Pitch 0.28 mm
Panel Type WOLED	Panel Type IPS
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 1300 cd/m²	Brightness 400 cd/m²
Response Time 0.03 ms	Response Time 1 ms
Refresh Rate 240 Hz	Refresh Rate 360 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 No