What are the key display performance specs of this monitor for gaming?

It has a 26.5-inch QHD OLED panel with 2560 x 1440 resolution, a 240Hz refresh rate, and a 0.03 ms response time.

Does this monitor support both AMD FreeSync Premium Pro and NVIDIA G-Sync Compatible?

Yes. The ASUS ROG Strix XG27AQDMES supports both AMD FreeSync Premium Pro and G-Sync Compatible adaptive sync technology.

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27-inch QHD (2560 x 1440) QD-OLED gaming monitor with 240Hz refresh rate and 0.03ms response time
ASUS OLED Care Pro functions with Neo Proximity Sensor that precisely detects when the user is away, switching to a black screen to reduce the risk of burn-in
99% DCI-P3 gamut, true 10-bit color, and Delta E < 2 color difference for astonishing HDR performance
Exclusive ASUS DisplayWidget Center application allows users to easily access OLED Care Pro functions and adjust monitor settings using a mouse
ROG Gaming A.I technology with AI-powered features to enhance users' gaming experience
What's in the box: DisplayPort cable, HDMI cable, Microfiber cloth, Quick start guide, ROG pouch, ROG sticker, VESA mount kit, Warranty Card
ASUS Rapid Replacement (ARR) 3 years warranty with cross shipping service included
Free 3-month Adobe Creative Cloud Subscription: Receive complimentary access with the purchase of this product (offer valid until 08/31/2026)

Overview

Specs

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Display
Screen Size	26.5"
Widescreen	Yes
Glare Screen	Anti-glare
Panel	OLED
Display Type	QHD
Adaptive Sync Technology	FreeSync Premium Pro & G-Sync Compatible
Resolution	2560 x 1440 (2K)
Viewing Angle	178° (H) / 178° (V)
Aspect Ratio	16:9
Brightness	200 cd/m2
Contrast Ratio	1,500,000:1
Response Time	0.03 ms
Color Gamut	DCI-P3 99%
Display Colors	1.07 Billion
Monitor Pixel Density	0.229mm
Refresh Rate	240Hz
HDR Standard	HDR10
Curved Surface Screen	Flat Panel

Power
Power Supply	100 - 240 VAC, 50/60Hz
Power Consumption	Power Consumption : < 25W Power Saving Mode : < 0.5W Power Off Mode : <0.3W

Convenience
Stand Adjustments	T
Built-in Speakers	No
Built-in Webcam	No
VESA Compatibility - Mountable	100 x 100mm
Features	GameVisual: Yes Color Temp. Selection: Yes (8 modes) Color Adjustment: 6-axis adjustment (R,G,B,C,M,Y) Gamma Adjustment: Yes (Support Gamma 1.8/2.0/2.2/2.4/2.6) Color Accuracy: Delta E< 2 GamePlus: Yes HDCP: Yes, 2.3 Extreme Low Motion Blur: Yes VRR Technology: Yes (Adaptive-Sync) GameFast Input technology: Yes Shadow Boost: Yes DisplayWidget: Yes, DisplayWidget Center Low Blue Light: Yes (Hardware Solution) ASUS Power Sync: Yes A.I. Assistant Technology: AI Visual A.I. Assistant Technology: Dynamic Crosshair A.I. Assistant Technology: Dynamic Shadow Boost

Dimensions & Weight
Dimensions	19.8" x 24.06" x 7.4" with stand 14.57" x 24.06" x 2.72" without stand
Weight	14.99 lbs. with stand 10.8 lbs. without stand

Packaging
Package Contents	DisplayPort cable HDMI cable Microfiber cloth Quick start guide ROG pouch ROG sticker VESA mount kit Warranty Card

Additional Information
First Listed on Newegg	August 27, 2026