Products
Gigabyte M27Q X
AOC Q27G3XMN
Tested using Methodology v2.0.1
Updated Jul 09, 2025 02:23 PM
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Tested using Methodology v2.1.1
Updated Nov 12, 2025 02:44 PM
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Max Refresh Rate
240 Hz
Size
27"
Pixel Type
IPS
Native Resolution
2560 x 1440
Max Refresh Rate
180 Hz
Size
27"
Pixel Type
VA
Native Resolution
2560 x 1440
Our Verdict
Gigabyte M27Q X
AOC Q27G3XMN
The Gigabyte M27Q X and the AOC Q27G3XMN are 1440p gaming monitors, with their own strengths and weaknesses. The Gigabyte is the better choice if you need something with a higher 240Hz refresh rate, and it doesn't have any distracting VRR flicker, like on the AOC. The AOC is the better choice for HDR gaming as it uses Mini LED backlighting with deep blacks and bright highlights.
Variants
- M27Q X (27")
- Q27G3XMN (27")
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27"
M27Q X
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27"
Q27G3XMN
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27"
M27Q X
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Q27G3XMN
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M27Q X
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Q27G3XMN
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Q27G3XMN
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Main Differences for
PC Gaming
PC Gaming
Threshold
PC Gaming
7.1
8.2
Local Dimming
0.0
7.5
Refresh Rate Compliance
6.3
8.5
Contrast
6.1
8.8
VRR Motion Performance
7.6
8.8
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
7.5
Build Quality Picture
Ergonomics
7.0
9.2
Ergonomics Picture
Back Picture
Height Adjustment
5.1" (13.0 cm)
5.1" (12.9 cm)
Min Height To Top Of Panel
15.6" (39.5 cm)
15.4" (39.2 cm)
Tilt Range
-20° to 5°
-20° to 5°
Rotate Portrait/Landscape
No
Yes, Both Ways
Swivel Range
No swivel
-30° to 30°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
14.6" (37.0 cm)
19.1" (48.5 cm)
Base Depth
7.0" (17.7 cm)
12.2" (31.0 cm)
Thickness (With Display)
4.9" (12.4 cm)
9.2" (23.4 cm)
Weight (With Display)
11.5 lbs (5.2 kg)
15.8 lbs (7.2 kg)
Display
Display Picture
Size
27"
27"
Housing Width
24.2" (61.5 cm)
24.2" (61.4 cm)
Housing Height
14.5" (36.8 cm)
14.3" (36.4 cm)
Thickness (Without Stand)
1.7" (4.4 cm)
2.8" (7.2 cm)
Weight (Without Stand)
7.7 lbs (3.5 kg)
12.2 lbs (5.6 kg)
Borders Size (Bezels)
0.3" (0.9 cm)
0.3" (0.8 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
External Brick
Internal
Picture Quality
Contrast
6.1
8.8
Checkerboard Picture
Native Contrast
1,088 : 1
4,508 : 1
Contrast With Local Dimming
N/A
9,613 : 1
Local Dimming
0.0
7.5
Local Dimming Video
Local Dimming
No
Yes
Backlight
Edge
Full-Array
SDR Brightness
8.4
7.8
Real Scene
434 cd/m²
327 cd/m²
Peak 2% Window
458 cd/m²
270 cd/m²
Peak 10% Window
459 cd/m²
332 cd/m²
Peak 25% Window
459 cd/m²
359 cd/m²
Peak 50% Window
459 cd/m²
373 cd/m²
Peak 100% Window
459 cd/m²
382 cd/m²
Sustained 2% Window
458 cd/m²
270 cd/m²
Sustained 10% Window
458 cd/m²
332 cd/m²
Sustained 25% Window
458 cd/m²
357 cd/m²
Sustained 50% Window
459 cd/m²
371 cd/m²
Sustained 100% Window
459 cd/m²
380 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.021
Minimum Brightness
41 cd/m²
34 cd/m²
HDR Brightness
7.2
8.7
EOTF
VESA DisplayHDR Certification
DisplayHDR 400 - 1.0/1.1
DisplayHDR 1000
Real Scene
482 cd/m²
810 cd/m²
Peak 2% Window
507 cd/m²
796 cd/m²
Peak 10% Window
508 cd/m²
976 cd/m²
Peak 25% Window
508 cd/m²
1,034 cd/m²
Peak 50% Window
509 cd/m²
1,011 cd/m²
Peak 100% Window
509 cd/m²
966 cd/m²
Sustained 2% Window
507 cd/m²
790 cd/m²
Sustained 10% Window
508 cd/m²
970 cd/m²
Sustained 25% Window
508 cd/m²
1,018 cd/m²
Sustained 50% Window
508 cd/m²
991 cd/m²
Sustained 100% Window
508 cd/m²
949 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.013
Gray Uniformity
7.4
7.2
50% Uniformity Picture
50% Std. Dev.
3.903%
2.627%
50% DSE
0.170%
0.198%
Black Uniformity
6.0
7.3
Native Black Uniformity Picture
Native Std. Dev.
1.999%
1.426%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
0.292%
Vertical Viewing Angle
7.9
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
32°
Color Washout From Above
37°
Vertical Hue Graph
Color Shift From Below
64°
Color Shift From Above
69°
Vertical Lightness Graph
Brightness Loss From Below
34°
Brightness Loss From Above
38°
Black Level Raise From Below
70°
Black Level Raise From Above
70°
Gamma Shift From Below
42°
Gamma Shift From Above
52°
Color Accuracy (Pre-Calibration)
9.5
9.0
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
sRGB
Off (sRGB)
sRGB Gamut Area xy
100.1%
102.3%
White Balance dE (Avg.)
0.86
2.02
Color Temperature (Avg.)
6,586 K
6,487 K
Gamma (Avg.)
2.10
2.31
Color dE (Avg.)
1.07
1.50
Contrast Setting
N/A
N/A
RGB Settings
Default
Default
Gamma Setting
Default
Default
Brightness Setting
27
70
Measured Brightness
149 cd/m²
217 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.7
9.6
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom 1
Off
sRGB Gamut Area xy
100.4%
98.0%
White Balance dE (Avg.)
0.66
0.56
Color Temperature (Avg.)
6,597 K
6,504 K
Gamma (Avg.)
2.18
2.19
Color dE (Avg.)
0.37
0.54
Contrast Setting
50
50
RGB Settings
94-98-100
29-45-42
Gamma Setting
2.2
Gamma 1
Brightness Setting
12
24
Measured Brightness
102 cd/m²
101 cd/m²
SDR Color Gamut
9.9
9.4
sRGB Color Gamut Picture
sRGB Coverage xy
99.9%
98.1%
sRGB Picture Mode
Custom 1
Off
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
97.7%
90.4%
Adobe RGB Picture Mode
Custom 1
Off
HDR Color Gamut
8.4
8.3
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
92.4%
91.7%
DCI-P3 Picture Mode
HDR Mode
Display HDR
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
73.0%
69.6%
Rec. 2020 Picture Mode
HDR Mode
Display HDR
HDR Color Volume
7.3
8.3
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
51.1%
80.1%
DCI-P3 Picture Mode
HDR Mode
Display HDR
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
28.9%
38.6%
Rec. 2020 Picture Mode
HDR Mode
Display HDR
Viewing Angle
8.0
5.2
Viewing Angle Video
Chroma Graph
Color Washout From Left
40°
27°
Color Washout From Right
39°
25°
Hue Graph
Color Shift From Left
66°
26°
Color Shift From Right
67°
26°
Lightness Graph
Brightness Loss From Left
44°
30°
Brightness Loss From Right
43°
28°
Black Level Raise From Left
70°
15°
Black Level Raise From Right
70°
15°
Gamma Shift From Left
40°
14°
Gamma Shift From Right
38°
16°
Text Clarity
7.5
7.5
ClearType On
ClearType Off
Pixel Type
IPS
VA
Pixels
Subpixel Layout
RGB
RGB
Direct Reflections
6.4
Ring Light Picture
Direct Reflections Graph
Peak Direct Reflection Intensity
32.3%
Screen Finish
Matte
Matte
Reflections
7.9
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
4.4%
Indirect Reflections
2.6%
Calculated Direct Reflections
1.8%
Ambient Black Level Raise
8.7
Black Level Raise Picture
Ambient Black Level Raise Graph
Black Luminance @ 0 lx
0.09 cd/m²
Black Luminance @ 1000 lx
0.59 cd/m²
Total Reflected Light
5.7
Bright Room Off Picture
Total Reflection Ring Light Picture
Total Reflected Light Intensity
35,932% ⋅ pixel
Diffraction Artifacts
No
Gradient
9.5
9.7
Gradient Picture
Color Depth
10 Bit
10 Bit
Motion
Refresh Rate
8.0
7.7
Native Refresh Rate
240 Hz
165 Hz
Max Refresh Rate
240 Hz
180 Hz
Max Refresh Rate Over DP
240 Hz
180 Hz
Max Refresh Rate Over HDMI
144 Hz
144 Hz
Max Refresh Rate Over DP @ 10-bit
200 Hz
180 Hz
Max Refresh Rate Over HDMI @ 10-Bit
60 Hz
60 Hz
DSC Toggle
No
DSC Off Max Refresh Rate Over DP
N/A
DSC Off Max Refresh Rate Over HDMI
N/A
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Yes
Yes
G-SYNC
Compatible (Tested)
Compatible (Tested)
VRR Maximum
240 Hz
180 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
VRR Motion Performance
7.6
8.8
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
Picture Quality
Medium
Variable Overdrive Advertised
Yes
No
Avg. CAD
176
109
Best CAD
150
106
Worst CAD
239
117
Refresh Rate Compliance
6.3
8.5
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
43%
65%
Compliance @ 120 FPS
55%
75%
Compliance @ 60 FPS
62%
86%
CAD @ Max Refresh Rate
8.0
8.4
Pursuit Photo At Max Refresh
CAD Heatmap At Max Refresh
OD Transition Max Refresh Rate
OD balance
0 to 31
OD medium
0 to 31
Recommended Overdrive Setting
Balance
Medium
Avg. CAD
140
107
Best 10% CAD
74
29
Worst 10% CAD
246
219
Response Time @ Max Refresh Rate
First Response Time
4.1 ms
4.2 ms
Total Response Time
6.4 ms
4.5 ms
Recommended Overdrive Setting
Balance
Medium
RGB Overshoot
6 RGB
1 RGB
Worst 10% RGB Overshoot
20 RGB
8 RGB
Worst 10% First Response Time
10.3 ms
10.3 ms
Worst 10% Total Response Time
10.4 ms
10.3 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
CAD @ 120Hz
7.7
8.5
Pursuit Photo 120Hz
CAD Heatmap 120Hz
OD Transition 120Hz
OD balance
0 to 31
OD medium
0 to 31
Recommended Overdrive Setting
Picture Quality
Medium
Avg. CAD
165
106
Best 10% CAD
88
31
Worst 10% CAD
260
203
Response Time @ 120Hz
Worst 10% First Response Time
10.0 ms
9.4 ms
RGB Overshoot
4 RGB
1 RGB
Total Response Time
8.7 ms
4.4 ms
First Response Time
5.2 ms
3.8 ms
Recommended Overdrive Setting
Picture Quality
Medium
Worst 10% Total Response Time
12.4 ms
9.9 ms
Worst 10% RGB Overshoot
13 RGB
11 RGB
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
CAD @ 60Hz
7.3
8.2
Pursuit Photo 60Hz
CAD Heatmap 60Hz
OD Transition 60Hz
OD balance
0 to 31
OD medium
0 to 31
Recommended Overdrive Setting
Off
Medium
Avg. CAD
195
116
Best 10% CAD
109
29
Worst 10% CAD
290
276
Response Time @ 60Hz
Recommended Overdrive Setting
Off
Medium
First Response Time
8.9 ms
3.7 ms
Total Response Time
8.9 ms
5.3 ms
RGB Overshoot
0 RGB
2 RGB
Worst 10% Total Response Time
14.0 ms
17.3 ms
Worst 10% First Response Time
14.0 ms
9.2 ms
Worst 10% RGB Overshoot
0 RGB
16 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)
Yes
No BFI
Maximum Frequency
240 Hz
N/A
Minimum Frequency
80 Hz
N/A
Longest Pulse Width Brightness
197 cd/m²
N/A
Shortest Pulse Width Brightness
197 cd/m²
N/A
Pulse Width Control
No
No BFI
Pulse Phase Control
No
No BFI
Pulse Amplitude Control
No
No BFI
VRR At The Same Time
Yes
No BFI
VRR Flicker
9.3
2.0
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
0.7 RGB
6.7 RGB
Middle Gray Flicker
0.1 RGB
5.4 RGB
Light Gray Flicker
0.1 RGB
5.8 RGB
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
>1000 Hz
Inputs
Input Lag
9.2
8.8
Native Resolution @ Max Hz
2.6 ms
4.3 ms
Native Resolution @ 120Hz
4.5 ms
5.1 ms
Native Resolution @ 60Hz
8.9 ms
9.3 ms
Backlight Strobing (BFI)
2.6 ms
N/A
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
109 PPI
109 PPI
PS5 Compatibility
4.9
4.9
PS5 Compatibility Photo
PS5 Compatibility Table
4k @ 120Hz
No
No
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
7.1
7.1
XSX Compatibility Photo
XSX Compatibility Table
4k @ 120Hz
No
No
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
Inputs Photos
Inputs 1
Inputs 2
Inputs
Inputs 1
Inputs 2
DisplayPort
1 (DP 1.4)
1 (DP 1.4)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
No DisplayPort 2.1
Mini DisplayPort
No
No
DVI
No
HDMI
2 (HDMI 2.0)
2 (HDMI 2.0)
VGA
No
HDMI 2.1 Bandwidth
No HDMI 2.1
No HDMI 2.1
Daisy Chaining
No
No
3.5mm Audio Out
1
Yes
3.5mm Audio In
No
3.5mm Microphone In
No
Ethernet
No
HDR10
Yes
Yes
Dolby Vision
No
USB
USB-A Ports
2
0
USB-A Rated Speed
5Gbps (USB 3.2 Gen 1)
No USB-A Ports
USB-B Upstream Port
Yes
No
USB-C Ports
1
0
USB-C Upstream
Yes
No USB-C Ports
USB-C Rated Speed
5Gbps (USB 3.2 Gen 1)
No USB-C Ports
USB-C Power Delivery
18W
No USB-C Ports
USB-C DisplayPort Alt Mode
Yes
No USB-C Ports
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
No
HDR10
Yes
Yes
RGB Illumination
No
No
Multiple Input Display
PIP + PBP
No
KVM Switch
Yes
No
Smart OS
No
On-Screen Display (OSD)
OSD Picture
Check Price
27"
M27Q X
SEE PRICE
Amazon.com
27"
Q27G3XMN
SEE PRICE
Amazon.com
27"
M27Q X
SEE PRICE
Walmart.com
27"
Q27G3XMN
SEE PRICE
Walmart.com
27"
M27Q X
SEARCH
B&H
27"
Q27G3XMN
SEARCH
B&H
27"
M27Q X
SEARCH
BestBuy.com
27"
Q27G3XMN
SEARCH
BestBuy.com
Gigabyte M27Q X
AOC Q27G3XMN
Comments
Gigabyte M27Q X vs AOC Q27G3XMN: Main Discussion
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