Products
Gigabyte G27QC
AOC CQ27G2
Tested using Methodology v1.1
Updated Jul 23, 2025 07:26 PM
SEE PRICE
Amazon.com
Tested using Methodology v1.2
Updated Jun 13, 2025 08:56 PM
SEE PRICE
Walmart.com
Max Refresh Rate
165 Hz
Size
27"
Pixel Type
VA
Variable Refresh Rate
FreeSync
HDR10
Yes
Native Resolution
2560 x 1440
Max Refresh Rate
144 Hz
Size
27"
Pixel Type
VA
Variable Refresh Rate
Yes
HDR10
No
Native Resolution
2560 x 1440
Our Verdict
Gigabyte G27QC
AOC CQ27G2
Overall, the Gigabyte G27QC is a bit better than the AOC CQ27G2. The Gigabyte has a higher refresh rate, faster response time at 60Hz, and gets brighter. However, the AOC has better ergonomics and a Black Frame Insertion feature to help improve motion clarity.
Variants
- G27QC (27")
- CQ27G2 (27")
Check Price
27"
G27QC
SEE PRICE
Amazon.com
27"
CQ27G2
SEE PRICE
Walmart.com
27"
G27QC
SEE PRICE
Walmart.com
27"
CQ27G2
SEE PRICE
Amazon.com
27"
G27QC
SEARCH
B&H
27"
CQ27G2
SEARCH
B&H
27"
G27QC
SEARCH
BestBuy.com
27"
CQ27G2
SEARCH
BestBuy.com
Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
7.6
6.8
Ergonomics
5.3
7.6
SDR Peak Brightness
7.8
6.3
Full Comparison
Design
Style
Design Picture
Curved
Yes
Yes
Curve Radius
1500R
1500R
Size
27"
27"
Weight (without stand)
10.1 lbs (4.6 kg)
9.0 lbs (4.1 kg)
Weight (with stand)
14.6 lbs (6.6 kg)
11.9 lbs (5.4 kg)
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.5
7.5
Build Quality Picture
Ergonomics
5.3
7.6
Ergonomics Picture
Back Picture
Height Adjustment
5.1" (13.0 cm)
5.1" (13.0 cm)
Tilt Range
-20° to 5°
-20° to 5°
Rotate Portrait/Landscape
No
No
Swivel Range
No swivel
-30° to 30°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
15.7" (40.0 cm)
17.2" (43.7 cm)
Base Depth
7.3" (18.6 cm)
9.1" (23.0 cm)
Thickness (With Display)
6.5" (16.5 cm)
7.7" (19.5 cm)
Weight (With Display)
14.6 lbs (6.6 kg)
11.9 lbs (5.4 kg)
Display
Display Picture
Size
27"
27"
Housing Width
24.1" (61.1 cm)
Housing Height
14.4" (36.6 cm)
Thickness (Without Stand)
3.6" (9.1 cm)
2.9" (7.3 cm)
Weight (Without Stand)
10.1 lbs (4.6 kg)
9.0 lbs (4.1 kg)
Borders Size (Bezels)
0.3" (0.7 cm)
0.3" (0.8 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
Internal
Internal
Back
Back Picture
Wall Mount
VESA 100x100
VESA 100x100
Borders
Borders Picture
Borders
0.3" (0.7 cm)
0.3" (0.8 cm)
Thickness
Thickness Picture
Thickness (with stand)
6.5" (16.5 cm)
7.7" (19.5 cm)
Thickness (without stand)
3.6" (9.1 cm)
2.9" (7.3 cm)
Picture Quality
Contrast
8.3
8.3
Checkerboard Picture
Native Contrast
3,855 : 1
3,858 : 1
Contrast With Local Dimming
N/A
N/A
Local Dimming
0.0
0.0
Local Dimming Video
Local Dimming
No
No
Backlight
Edge
Edge
SDR Brightness
7.8
6.3
Real Scene
376 cd/m²
225 cd/m²
Peak 2% Window
285 cd/m²
196 cd/m²
Peak 10% Window
286 cd/m²
196 cd/m²
Peak 25% Window
286 cd/m²
197 cd/m²
Peak 50% Window
286 cd/m²
197 cd/m²
Peak 100% Window
286 cd/m²
197 cd/m²
Sustained 2% Window
285 cd/m²
196 cd/m²
Sustained 10% Window
286 cd/m²
196 cd/m²
Sustained 25% Window
286 cd/m²
196 cd/m²
Sustained 50% Window
286 cd/m²
197 cd/m²
Sustained 100% Window
286 cd/m²
197 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.000
Minimum Brightness
38 cd/m²
HDR Brightness
6.4
0.0
EOTF
VESA DisplayHDR Certification
No Certification
Real Scene
388 cd/m²
N/A
Peak 2% Window
284 cd/m²
N/A
Peak 10% Window
286 cd/m²
N/A
Peak 25% Window
287 cd/m²
N/A
Peak 50% Window
287 cd/m²
N/A
Peak 100% Window
287 cd/m²
N/A
Sustained 2% Window
284 cd/m²
N/A
Sustained 10% Window
286 cd/m²
N/A
Sustained 25% Window
287 cd/m²
N/A
Sustained 50% Window
287 cd/m²
N/A
Sustained 100% Window
287 cd/m²
N/A
Automatic Brightness Limiting (ABL)
0.000
N/A
Horizontal Viewing Angle
5.5
5.5
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
24°
25°
Color Washout From Right
26°
25°
Horizontal Hue Graph
Color Shift From Left
44°
41°
Color Shift From Right
43°
42°
Horizontal Lightness Graph
Brightness Loss From Left
27°
28°
Brightness Loss From Right
29°
28°
Black Level Raise From Left
14°
16°
Black Level Raise From Right
18°
16°
Gamma Shift From Left
14°
18°
Gamma Shift From Right
20°
17°
Vertical Viewing Angle
5.2
5.1
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
25°
26°
Color Washout From Above
29°
27°
Vertical Hue Graph
Color Shift From Below
38°
41°
Color Shift From Above
46°
40°
Vertical Lightness Graph
Brightness Loss From Below
27°
29°
Brightness Loss From Above
31°
30°
Black Level Raise From Below
10°
11°
Black Level Raise From Above
13°
11°
Gamma Shift From Below
9°
11°
Gamma Shift From Above
11°
10°
Gray Uniformity
8.7
8.1
50% Uniformity Picture
50% Std. Dev.
2.968%
2.124%
50% DSE
0.100%
0.152%
5% Uniformity Picture
5% Std. Dev.
1.000%
5% DSE
0.082%
Black Uniformity
3.2
3.0
Native Black Uniformity Picture
Native Std. Dev.
3.895%
3.987%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
7.7
7.7
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
sRGB
Standard (sRGB)
sRGB Gamut Area xy
105.6%
White Balance dE (Avg.)
2.75
4.06
Color Temperature (Avg.)
6,265 K
7,316 K
Gamma (Avg.)
2.19
2.31
Color dE (Avg.)
2.94
2.97
Contrast Setting
N/A
50
RGB Settings
Default
sRGB
Gamma Setting
Default
Gamma 1
Brightness Setting
35
90
Measured Brightness
156 cd/m²
188 cd/m²
Brightness Locked
Yes
Color Accuracy (Post-Calibration)
9.5
9.5
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom 1
Standard (User)
sRGB Gamut Area xy
97.3%
White Balance dE (Avg.)
0.57
0.68
Color Temperature (Avg.)
6,566 K
6,512 K
Gamma (Avg.)
2.19
2.19
Color dE (Avg.)
0.89
0.62
Contrast Setting
50
50
RGB Settings
94-98-100
51-50-45
Gamma Setting
Gamma 3
Gamma 1
Brightness Setting
14
38
Measured Brightness
100 cd/m²
101 cd/m²
ICC Profile
SDR Color Gamut
8.9
9.1
sRGB Color Gamut Picture
sRGB Coverage xy
97.2%
97.5%
sRGB Picture Mode
Custom 1
Standard
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
81.2%
81.4%
Adobe RGB Picture Mode
Custom 1
Standard
SDR Color Volume
9.4
9.7
sRGB Color Volume ITP Picture
sRGB In ICtCp
98.9%
99.0%
sRGB Picture Mode
Custom 1
Standard
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
88.6%
89.4%
Adobe RGB Picture Mode
Custom 1
Standard
HDR Color Gamut
7.0
0.0
Wide Color Gamut
Yes
N/A
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
N/A
DCI-P3 Picture Mode
Custom 1
No HDR
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
63.1%
N/A
Rec. 2020 Picture Mode
Custom 1
No HDR
DCI P3 xy
77.0%
HDR Color Volume
7.3
0.0
DCI-P3 Color Volume ITP Picture
DCI-P3 In ICtCp
83.9%
N/A
DCI-P3 Picture Mode
Custom 1
No HDR
Rec. 2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
61.4%
N/A
Rec. 2020 Picture Mode
Custom 1
No HDR
Image Retention
9.9
Image Retention Picture
IR After 0 Min Recovery
0.05%
IR After 2 Min Recovery
0.00%
IR After 4 Min Recovery
0.00%
IR After 6 Min Recovery
0.00%
IR After 8 Min Recovery
0.00%
IR After 10 Min Recovery
0.00%
Reflections
7.9
7.4
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
5.3%
5.8%
Indirect Reflections
4.4%
3.8%
Calculated Direct Reflections
0.9%
2.0%
Text Clarity
7.5
7.5
ClearType On
ClearType Off
Pixel Type
VA
VA
Pixels
Subpixel Layout
RGB
RGB
Gradient
9.7
8.2
Gradient Picture
Color Depth
10 Bit
8 Bit
Color Bleed
10
Color Bleed Horizontal
Pixel Row Error
0.001%
Color Bleed Vertical
Pixel Column Error
0.001%
Motion
Refresh Rate
8.3
Native Refresh Rate
165 Hz
144 Hz
Max Refresh Rate
165 Hz
144 Hz
Max Refresh Rate Over DP
144 Hz
Max Refresh Rate Over HDMI
144 Hz
Max Refresh Rate Over DP @ 10-bit
N/A
Max Refresh Rate Over HDMI @ 10-Bit
N/A
Variable Refresh Rate (VRR)
FreeSync
Yes
Yes
G-SYNC
Compatible (Tested)
Compatible (Tested)
VRR Maximum
165 Hz
144 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
Variable Refresh Rate
FreeSync
Yes
Native
165 Hz
144 Hz
Max Refresh Rate
165 Hz
144 Hz
Variable Refresh Rate
Yes
Response Time @ Max Refresh Rate
8.1
6.4
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Speed
Strong
Rise / Fall Time
5.2 ms
6.6 ms
Total Response Time
12.2 ms
15.1 ms
Overshoot Error
7.9%
1.0%
Worst 3 Rise / Fall Time
10.5 ms
20.4 ms
Worst 3 Total Response Time
18.8 ms
36.9 ms
Worst 3 Overshoot Error
2.0%
7.8%
Response Time @ 120Hz
6.5
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Strong
Rise / Fall Time
6.3 ms
Total Response Time
15.3 ms
Overshoot Error
1.6%
Worst 3 Rise / Fall Time
19.7 ms
Worst 3 Total Response Time
33.7 ms
Worst 3 Overshoot Error
9.8%
Response Time @ 60Hz
8.0
6.1
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Balance
Strong
Rise / Fall Time
5.6 ms
5.2 ms
Total Response Time
15.5 ms
21.4 ms
Overshoot Error
3.5%
5.7%
Worst 3 Rise / Fall Time
7.5 ms
9.5 ms
Worst 3 Total Response Time
20.3 ms
44.4 ms
Worst 3 Overshoot Error
4.5%
23.1%
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
Yes
Yes
Maximum Frequency
165 Hz
144 Hz
Minimum Frequency
100 Hz
100 Hz
Longest Pulse Width Brightness
186 cd/m²
Shortest Pulse Width Brightness
68 cd/m²
Pulse Width Control
Yes
Pulse Phase Control
No
Pulse Amplitude Control
No
VRR At The Same Time
No
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
9.5
9.0
Native Resolution @ Max Hz
3.9 ms
3.7 ms
Native Resolution @ 120Hz
5.0 ms
Native Resolution @ 60Hz
8.5 ms
8.6 ms
Variable Refresh Rate
4.1 ms
Variable Refresh Rate @ 60Hz
9.5 ms
10 Bit HDR
N/A
Backlight Strobing (BFI)
4.2 ms
5.1 ms
Resolution And Size
8.3
8.0
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
Measured Screen Diagonal
27.0"
27.0"
Screen Area
310 in²
310 in²
PS5 Compatibility
3.0
PS5 Compatibility Photo
4k @ 120Hz
No
4k @ 60Hz
No
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
HDR
No
VRR
No
Xbox Series X|S Compatibility
5.8
XSX Compatibility Photo
4k @ 120Hz
No
4k @ 60Hz
No
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
HDR
No
VRR
Yes
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.4)
1 (DP 1.2)
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
2 (HDMI 2.0)
HDMI 2.1 Rated Speed
No HDMI 2.1
DVI
No
No
VGA
No
No
Daisy Chaining
No
3.5mm Audio Out
1
1
HDR10
Yes
No
3.5mm Audio In
No
3.5mm Microphone In
No
No
DisplayPort Out
No
USB
2 (USB 3.0)
0
USB C
No
0
Digital Optical Audio Out
No
Analog Audio Out RCA
No
Power Supply
Internal
Internal
USB
USB-A Ports
2 (USB 3.0)
0
USB-A Rated Speed
No USB-A Ports
USB-B Upstream Port
No
USB-C Ports
No
0
USB-C Upstream
No USB-C Ports
USB-C Rated Speed
No USB-C Ports
USB-C Power Delivery
No USB-C Ports
USB-C DisplayPort Alt Mode
No USB-C Ports
Thunderbolt
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
No
RGB Illumination
No
No
Multiple Input Display
PIP + PBP
No
KVM Switch
No
HDR10
Yes
No
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
Check Price
27"
G27QC
SEE PRICE
Amazon.com
27"
CQ27G2
SEE PRICE
Walmart.com
27"
G27QC
SEE PRICE
Walmart.com
27"
CQ27G2
SEE PRICE
Amazon.com
27"
G27QC
SEARCH
B&H
27"
CQ27G2
SEARCH
B&H
27"
G27QC
SEARCH
BestBuy.com
27"
CQ27G2
SEARCH
BestBuy.com
Gigabyte G27QC
AOC CQ27G2
Comments
Gigabyte G27QC vs AOC CQ27G2: Main Discussion
What do you think of these products? Let us know below.
Looking for a personalized buying advice from the RTINGS.com experts? Insiders have direct access to buying advice on our insider forum.