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Products
AOC AGON PRO AG276QZD2
ASUS ROG Strix OLED XG27ACDNG
Tested using Methodology v2.1
Updated Jul 23, 2025 12:37 PM
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Amazon.comTested using Methodology v2.1
Updated Jul 11, 2025 01:18 PM
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Samsung.com
Max Refresh Rate240 Hz
Size27"
Pixel TypeQD-OLED
Native Resolution2560 x 1440
Max Refresh Rate360 Hz
Size27"
Pixel TypeQD-OLED
Native Resolution2560 x 1440
Our Verdict
AOC AGON PRO AG276QZD2
ASUS ROG Strix OLED XG27ACDNG
The ASUS ROG Strix OLED XG27ACDNG and the AOC AGON PRO AG276QZD2 are 27-inch QD-OLED gaming monitors. The ASUS is the better option, as its colors are more vivid and rich. Another advantage of the ASUS is that it has a higher refresh rate, resulting in a smoother feel.
Variants
- AGON PRO AG276QZD2 (27")
- ROG Strix OLED XG27ACDNG (27")
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27"
AGON PRO AG276QZD2
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Amazon.com27"
ROG Strix OLED XG27ACDNG
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Samsung.com27"
AGON PRO AG276QZD2
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ROG Strix OLED XG27ACDNG
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Amazon.com27"
AGON PRO AG276QZD2
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ROG Strix OLED XG27ACDNG
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Walmart.com27"
AGON PRO AG276QZD2
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Walmart.com27"
ROG Strix OLED XG27ACDNG
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ROG Strix OLED XG27ACDNG
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BestBuy.comMain Differences forPC Gaming
PC Gaming
Threshold
PC Gaming
8.9
9.2
1,000 cd/m² DCI-P3 Coverage ICtCp
48.6%
97.0%
Full Comparison
Design
Style
Design Picture
Curved
No
No
Curve Radius
Not Curved
Not Curved
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.5
8.5
Build Quality Picture
Ergonomics
9.0
9.0
Ergonomics Picture
Back Picture
Height Adjustment
5.0" (12.7 cm)
4.7" (12.0 cm)
Min Height To Top Of Panel
15.5" (39.4 cm)
15.1" (38.3 cm)
Tilt Range
-20° to 2.5°
-17.5° to 5°
Rotate Portrait/Landscape
Yes, Both Ways
Yes, Both Ways
Swivel Range
-30° to 30°
-45° to 45°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
10.4" (26.5 cm)
10.4" (26.5 cm)
Base Depth
8.9" (22.7 cm)
8.7" (22.0 cm)
Thickness (With Display)
6.8" (17.2 cm)
6.9" (17.5 cm)
Weight (With Display)
14.9 lbs (6.8 kg)
16.1 lbs (7.3 kg)
Display
Display Picture
Size
27"
27"
Housing Width
24.1" (61.2 cm)
24.1" (61.1 cm)
Housing Height
14.2" (36.0 cm)
14.5" (36.9 cm)
Thickness (Without Stand)
2.8" (7.2 cm)
2.6" (6.6 cm)
Weight (Without Stand)
12.3 lbs (5.6 kg)
10.8 lbs (4.9 kg)
Borders Size (Bezels)
0.3" (0.8 cm)
0.4" (0.9 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
External Brick
Internal
Picture Quality
Contrast
10
10
Checkerboard Picture
Native Contrast
Inf : 1
Inf : 1
Contrast With Local Dimming
Inf : 1
Inf : 1
Local Dimming
10
10
Local Dimming Video
Local Dimming
No
No
Backlight
No Backlight
No Backlight
SDR Brightness
6.9
7.7
Real Scene
251 cd/m²
322 cd/m²
Peak 2% Window
252 cd/m²
411 cd/m²
Peak 10% Window
252 cd/m²
414 cd/m²
Peak 25% Window
253 cd/m²
344 cd/m²
Peak 50% Window
253 cd/m²
292 cd/m²
Peak 100% Window
254 cd/m²
245 cd/m²
Sustained 2% Window
250 cd/m²
410 cd/m²
Sustained 10% Window
251 cd/m²
411 cd/m²
Sustained 25% Window
252 cd/m²
341 cd/m²
Sustained 50% Window
252 cd/m²
290 cd/m²
Sustained 100% Window
250 cd/m²
244 cd/m²
Automatic Brightness Limiting (ABL)
0.001
0.034
Minimum Brightness
14 cd/m²
13 cd/m²
HDR Brightness
6.8
6.8
EOTF
VESA DisplayHDR Certification
DisplayHDR TRUE BLACK 400
DisplayHDR TRUE BLACK 400
Real Scene
427 cd/m²
413 cd/m²
Peak 2% Window
983 cd/m²
992 cd/m²
Peak 10% Window
454 cd/m²
454 cd/m²
Peak 25% Window
359 cd/m²
359 cd/m²
Peak 50% Window
302 cd/m²
301 cd/m²
Peak 100% Window
253 cd/m²
252 cd/m²
Sustained 2% Window
974 cd/m²
982 cd/m²
Sustained 10% Window
449 cd/m²
448 cd/m²
Sustained 25% Window
357 cd/m²
354 cd/m²
Sustained 50% Window
300 cd/m²
298 cd/m²
Sustained 100% Window
251 cd/m²
250 cd/m²
Automatic Brightness Limiting (ABL)
0.078
0.078
Horizontal Viewing Angle
10
10
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
70°
70°
Color Washout From Right
70°
70°
Horizontal Hue Graph
Color Shift From Left
70°
70°
Color Shift From Right
70°
70°
Horizontal Lightness Graph
Brightness Loss From Left
70°
70°
Brightness Loss From Right
70°
70°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
70°
70°
Gamma Shift From Right
70°
70°
Vertical Viewing Angle
10
10
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
70°
70°
Color Washout From Above
70°
70°
Vertical Hue Graph
Color Shift From Below
70°
70°
Color Shift From Above
70°
70°
Vertical Lightness Graph
Brightness Loss From Below
70°
70°
Brightness Loss From Above
70°
70°
Black Level Raise From Below
70°
70°
Black Level Raise From Above
70°
70°
Gamma Shift From Below
70°
70°
Gamma Shift From Above
70°
70°
Gray Uniformity
8.9
9.3
50% Uniformity Picture
50% Std. Dev.
1.029%
0.602%
50% DSE
0.117%
0.100%
Black Uniformity
10
10
Native Black Uniformity Picture
Native Std. Dev.
0.323%
0.293%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
8.4
8.5
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Off (sRGB)
sRGB Cal Mode
sRGB Gamut Area xy
103.6%
107.0%
White Balance dE (Avg.)
3.57
1.74
Color Temperature (Avg.)
6,305 K
6,411 K
Gamma (Avg.)
2.25
2.27
Color dE (Avg.)
2.05
1.49
Contrast Setting
N/A
N/A
RGB Settings
Default
Default
Gamma Setting
Default
Default
Brightness Setting
90
44
Measured Brightness
213 cd/m²
119 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.7
9.8
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Off
User Mode
sRGB Gamut Area xy
101.5%
100.4%
White Balance dE (Avg.)
0.57
0.43
Color Temperature (Avg.)
6,484 K
6,500 K
Gamma (Avg.)
2.18
2.19
Color dE (Avg.)
0.35
0.44
Contrast Setting
50
75
RGB Settings
48-49-50
97-98-97
Gamma Setting
Gamma 1
2.2
Brightness Setting
38
25
Measured Brightness
101 cd/m²
100 cd/m²
SDR Color Gamut
9.8
9.8
sRGB Color Gamut Picture
sRGB Coverage xy
100.0%
100.0%
sRGB Picture Mode
Off
User Mode
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
95.3%
95.2%
Adobe RGB Picture Mode
Off
User Mode
HDR Color Gamut
6.0
9.6
Wide Color Gamut
No
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
75.5%
99.3%
DCI-P3 Picture Mode
HDR Peak
Console HDR
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
55.2%
79.8%
Rec. 2020 Picture Mode
HDR Peak
Console HDR
HDR Color Volume
7.6
8.9
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
48.6%
97.0%
DCI-P3 Picture Mode
HDR Peak
Console HDR
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
32.0%
47.6%
Rec. 2020 Picture Mode
HDR Peak
Console HDR
Text Clarity
7.0
7.0
ClearType On
ClearType Off
Pixel Type
QD-OLED
QD-OLED
Pixels
Subpixel Layout
Triangular RGB
Triangular RGB
Direct Reflections
7.0
7.0
Ring Light Picture
Direct Reflections Graph
Peak Direct Reflection Intensity
25.3%
25.4%
Screen Finish
Glossy
Glossy
Ambient Black Level Raise
4.2
4.1
Black Level Raise Picture
Ambient Black Level Raise Graph
Black Luminance @ 0 lx
0.00 cd/m²
0.00 cd/m²
Black Luminance @ 1000 lx
3.43
3.53 cd/m²
Total Reflected Light
9.1
9.0
Bright Room Off Picture
Total Reflection Ring Light Picture
Total Reflected Light Intensity
4,641% ⋅ pixel
4,720% ⋅ pixel
Diffraction Artifacts
No
No
Gradient
9.8
9.6
Gradient Picture
Color Depth
10 Bit
10 Bit
Motion
Refresh Rate
8.0
8.4
Native Refresh Rate
240 Hz
360 Hz
Max Refresh Rate
240 Hz
360 Hz
Max Refresh Rate Over DP
240 Hz
360 Hz
Max Refresh Rate Over HDMI
144 Hz
360 Hz
Max Refresh Rate Over DP @ 10-bit
240 Hz
360 Hz
Max Refresh Rate Over HDMI @ 10-Bit
60 Hz
360 Hz
DSC Toggle
No
Yes
DSC Off Max Refresh Rate Over DP
N/A
180 Hz
DSC Off Max Refresh Rate Over HDMI
N/A
180 Hz
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Yes
Yes
G-SYNC
Compatible (NVIDIA Certified)
Compatible (NVIDIA Certified)
VRR Maximum
240 Hz
360 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
VRR Motion Performance
9.9
9.8
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
No OD Mode
No OD Mode
Variable Overdrive Advertised
No
No
Avg. CAD
9
22
Best CAD
9
22
Worst CAD
10
23
Refresh Rate Compliance
9.8
9.7
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
94%
85%
Compliance @ 120 FPS
96%
94%
Compliance @ 60 FPS
98%
96%
CAD @ Max Refresh Rate
9.9
9.8
Pursuit Photo At Max Refresh
CAD Heatmap At Max Refresh
OD Transition Max Refresh Rate
OD noodmode
0 to 31
OD nomode
0 to 31
Recommended Overdrive Setting
No OD Mode
No OD Mode
Avg. CAD
10
22
Best 10% CAD
4
14
Worst 10% CAD
25
36
Response Time @ Max Refresh Rate
First Response Time
0.3 ms
0.6 ms
Total Response Time
0.8 ms
0.6 ms
Recommended Overdrive Setting
No OD Mode
No OD Mode
RGB Overshoot
3 RGB
0 RGB
Worst 10% RGB Overshoot
27 RGB
0 RGB
Worst 10% First Response Time
1.0 ms
2.4 ms
Worst 10% Total Response Time
5.4 ms
2.4 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
CAD @ 120Hz
9.9
9.8
Pursuit Photo 120Hz
CAD Heatmap 120Hz
OD Transition 120Hz
OD noodmode
0 to 31
OD noodmode
0 to 31
Recommended Overdrive Setting
No OD Mode
No OD Mode
Avg. CAD
11
22
Best 10% CAD
4
12
Worst 10% CAD
18
33
Response Time @ 120Hz
Worst 10% First Response Time
1.8 ms
2.3 ms
RGB Overshoot
0 RGB
0 RGB
Total Response Time
0.4 ms
0.7 ms
First Response Time
0.4 ms
0.6 ms
Recommended Overdrive Setting
No OD Mode
No OD Mode
Worst 10% Total Response Time
1.8 ms
3.1 ms
Worst 10% RGB Overshoot
0 RGB
1 RGB
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
CAD @ 60Hz
9.9
9.8
Pursuit Photo 60Hz
CAD Heatmap 60Hz
OD Transition 60Hz
OD noodmode
0 to 31
OD noodmode
0 to 31
Recommended Overdrive Setting
No OD Mode
No OD Mode
Avg. CAD
9
23
Best 10% CAD
4
12
Worst 10% CAD
15
38
Response Time @ 60Hz
Recommended Overdrive Setting
No OD Mode
No OD Mode
First Response Time
0.3 ms
0.7 ms
Total Response Time
0.3 ms
1.0 ms
RGB Overshoot
0 RGB
0 RGB
Worst 10% Total Response Time
1.2 ms
5.6 ms
Worst 10% First Response Time
1.2 ms
3.1 ms
Worst 10% RGB Overshoot
0 RGB
1 RGB
60Hz First Response Heatmap
60Hz Total Response Heatmap
60Hz RGB Overshoot Heatmap
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
No BFI
Yes
Maximum Frequency
N/A
180 Hz
Minimum Frequency
N/A
120 Hz
Longest Pulse Width Brightness
N/A
146 cd/m²
Shortest Pulse Width Brightness
N/A
146 cd/m²
Pulse Width Control
No BFI
No
Pulse Phase Control
No BFI
No
Pulse Amplitude Control
No BFI
No
VRR At The Same Time
No BFI
No
VRR Flicker
5.6
5.2
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
5.9 RGB
5.7 RGB
Middle Gray Flicker
0.5 RGB
0.9 RGB
Light Gray Flicker
0.6 RGB
2.3 RGB
Image Flicker
10
10
Backlight Picture
Flicker-Free
No
No
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
8.8
9.1
Native Resolution @ Max Hz
2.5 ms
2.0 ms
Native Resolution @ 120Hz
15.3 ms
5.5 ms
Native Resolution @ 60Hz
23.0 ms
14.2 ms
Backlight Strobing (BFI)
N/A
6.8 ms
Resolution
7.5
7.5
Native Resolution
2560 x 1440
2560 x 1440
Aspect Ratio
16:9
16:9
Megapixels
3.7 MP
3.7 MP
Pixel Density
110 PPI
109 PPI
PS5 Compatibility
4.9
9.3
PS5 Compatibility Photo
PS5 Compatibility Table
4k @ 120Hz
No
Yes
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
Xbox Series X|S Compatibility
6.8
9.3
XSX Compatibility Photo
XSX Compatibility Table
4k @ 120Hz
No
Yes
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
Inputs
Inputs 1
Inputs 2
DisplayPort
2 (DP 1.4)
1 (DP 1.4)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
No DisplayPort 2.1
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
2 (HDMI 2.1)
HDMI 2.1 Bandwidth
No HDMI 2.1
48Gbps (FRL 12x4)
Daisy Chaining
No
No
3.5mm Audio Out
Yes
Yes
Ethernet
No
No
HDR10
Yes
Yes
Dolby Vision
No
No
USB
USB-A Ports
2
3
USB-A Rated Speed
5Gbps (USB 3.2 Gen 1)
5Gbps (USB 3.2 Gen 1)
USB-B Upstream Port
Yes
Yes
USB-C Ports
0
1
USB-C Upstream
No USB-C Ports
Yes
USB-C Rated Speed
No USB-C Ports
5Gbps (USB 3.2 Gen 1)
USB-C Power Delivery
No USB-C Ports
90W
USB-C DisplayPort Alt Mode
No USB-C Ports
Yes
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
No
RGB Illumination
Controllable
Controllable
Multiple Input Display
PIP + PBP
PIP + PBP
KVM Switch
No
Yes
Smart OS
No
No
On-Screen Display (OSD)
OSD Picture
Check Price
27"
AGON PRO AG276QZD2
SEE PRICE
Amazon.com27"
ROG Strix OLED XG27ACDNG
SEE PRICE
Samsung.com27"
AGON PRO AG276QZD2
SEE PRICE
B&H27"
ROG Strix OLED XG27ACDNG
SEARCH
Amazon.com27"
AGON PRO AG276QZD2
SEE PRICE
BestBuy.com27"
ROG Strix OLED XG27ACDNG
SEE PRICE
Walmart.com27"
AGON PRO AG276QZD2
SEE PRICE
Walmart.com27"
ROG Strix OLED XG27ACDNG
SEARCH
B&H27"
ROG Strix OLED XG27ACDNG
SEARCH
BestBuy.com
AOC AGON PRO AG276QZD2
ASUS ROG Strix OLED XG27ACDNG
Comments
AOC AGON PRO AG276QZD2 vs ASUS ROG Strix OLED XG27ACDNG: Main Discussion
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