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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
AOC CQ27G2 vs Dell S2721DGF
Side-by-Side Comparison
Products
AOC CQ27G2
Dell S2721DGF
Tested using Methodology v1.2
Updated Mar 06, 2024 09:05 PM
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Amazon.comTested using Methodology v1.2
Updated May 09, 2024 07:49 PM
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Max Refresh Rate144 Hz
Size27"
Pixel TypeVA
Variable Refresh RateYes
HDR10No
Native Resolution2560 x 1440
Max Refresh Rate165 Hz
Size27"
Pixel TypeIPS
Variable Refresh RateYes
HDR10Yes
Native Resolution2560 x 1440
Variants
- CQ27G2 (27")
- S2721DGF (27")
Our Verdict
AOC CQ27G2
Dell S2721DGF
The Dell S2721DGF is much better than the AOC CQ27G2 for most users. The Dell has much better ergonomics, higher peak brightness, better reflection handling, and much better motion handling. The Dell also has wide viewing angles. On the other hand, the AOC has better contrast, so it might be a better choice for a dark room.
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27"
CQ27G2
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S2721DGF
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Amazon.com27"
CQ27G2
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Walmart.comMain Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
6.8
7.7
SDR Brightness
6.3
8.0
Horizontal Viewing Angle
5.5
8.5
Ergonomics
7.6
9.2
Contrast
8.3
5.8
Response Time @ Max Refresh Rate
6.4
9.0
Full Comparison
Design
Style
Design Picture
Curved
Yes
No
Curve Radius
1500R
Not Curved
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.5
8.0
Build Quality Picture
Ergonomics
7.6
9.2
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
Yes, Both Ways
Swivel Range
-30° to 30°
-45° to 45°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
17.2" (43.7 cm)
10.9" (27.6 cm)
Base Depth
9.1" (23.0 cm)
7.9" (20.0 cm)
Thickness (With Display)
7.7" (19.5 cm)
6.3" (16.0 cm)
Weight (With Display)
11.9 lbs (5.4 kg)
14.6 lbs (6.6 kg)
Display
Display Picture
Size
27"
27"
Housing Width
24.1" (61.1 cm)
24.1" (61.2 cm)
Housing Height
14.4" (36.6 cm)
14.2" (36.1 cm)
Thickness (Without Stand)
2.9" (7.3 cm)
2.6" (6.5 cm)
Weight (Without Stand)
9.0 lbs (4.1 kg)
9.9 lbs (4.5 kg)
Borders Size (Bezels)
0.3" (0.8 cm)
0.3" (0.7 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
Internal
Internal
Picture Quality
Contrast
8.3
5.8
Checkerboard Picture
Native Contrast
3,858 : 1
882 : 1
Contrast With Local Dimming
N/A
971 : 1
Local Dimming
0.0
1.0
Local Dimming Video
Local Dimming
No
Yes
Backlight
Edge
Edge
SDR Brightness
6.3
8.0
Real Scene
225 cd/m²
341 cd/m²
Peak 2% Window
196 cd/m²
364 cd/m²
Peak 10% Window
196 cd/m²
367 cd/m²
Peak 25% Window
197 cd/m²
368 cd/m²
Peak 50% Window
197 cd/m²
368 cd/m²
Peak 100% Window
197 cd/m²
368 cd/m²
Sustained 2% Window
196 cd/m²
364 cd/m²
Sustained 10% Window
196 cd/m²
367 cd/m²
Sustained 25% Window
196 cd/m²
368 cd/m²
Sustained 50% Window
197 cd/m²
368 cd/m²
Sustained 100% Window
197 cd/m²
368 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.001
Minimum Brightness
38 cd/m²
35 cd/m²
HDR Brightness
0.0
6.6
EOTF
VESA DisplayHDR Certification
No Certification
DisplayHDR 400 - 1.0/1.1
Real Scene
N/A
328 cd/m²
Peak 2% Window
N/A
481 cd/m²
Peak 10% Window
N/A
485 cd/m²
Peak 25% Window
N/A
486 cd/m²
Peak 50% Window
N/A
487 cd/m²
Peak 100% Window
N/A
487 cd/m²
Sustained 2% Window
N/A
480 cd/m²
Sustained 10% Window
N/A
484 cd/m²
Sustained 25% Window
N/A
484 cd/m²
Sustained 50% Window
N/A
486 cd/m²
Sustained 100% Window
N/A
486 cd/m²
Automatic Brightness Limiting (ABL)
N/A
0.003
Horizontal Viewing Angle
5.5
8.5
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
25°
46°
Color Washout From Right
25°
47°
Horizontal Hue Graph
Color Shift From Left
41°
52°
Color Shift From Right
42°
55°
Horizontal Lightness Graph
Brightness Loss From Left
28°
48°
Brightness Loss From Right
28°
49°
Black Level Raise From Left
16°
70°
Black Level Raise From Right
16°
70°
Gamma Shift From Left
18°
60°
Gamma Shift From Right
17°
61°
Vertical Viewing Angle
5.1
6.2
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
26°
32°
Color Washout From Above
27°
33°
Vertical Hue Graph
Color Shift From Below
41°
31°
Color Shift From Above
40°
34°
Vertical Lightness Graph
Brightness Loss From Below
29°
36°
Brightness Loss From Above
30°
37°
Black Level Raise From Below
11°
32°
Black Level Raise From Above
11°
22°
Gamma Shift From Below
11°
30°
Gamma Shift From Above
10°
30°
Gray Uniformity
8.1
8.0
50% Uniformity Picture
50% Std. Dev.
2.124%
3.975%
50% DSE
0.152%
0.132%
Black Uniformity
3.0
3.9
Native Black Uniformity Picture
Native Std. Dev.
3.987%
2.946%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
7.261%
Color Accuracy (Pre-Calibration)
7.7
5.9
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Standard (sRGB)
Standard
sRGB Gamut Area xy
105.6%
137.7%
White Balance dE (Avg.)
4.06
3.43
Color Temperature (Avg.)
7,316 K
6,929 K
Gamma (Avg.)
2.31
2.13
Color dE (Avg.)
2.97
3.55
Contrast Setting
50
75
RGB Settings
sRGB
Default
Gamma Setting
Gamma 1
No Gamma Setting
Brightness Setting
90
75
Measured Brightness
188 cd/m²
223 cd/m²
Brightness Locked
Yes
No
Color Accuracy (Post-Calibration)
9.5
9.8
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Standard (User)
Custom Color
sRGB Gamut Area xy
97.3%
100.7%
White Balance dE (Avg.)
0.68
0.54
Color Temperature (Avg.)
6,512 K
6,504 K
Gamma (Avg.)
2.19
2.17
Color dE (Avg.)
0.62
0.34
Contrast Setting
50
73
RGB Settings
51-50-45
100-96-97
Gamma Setting
Gamma 1
No Gamma Setting
Brightness Setting
38
30
Measured Brightness
101 cd/m²
99 cd/m²
SDR Color Gamut
9.1
9.4
sRGB Color Gamut Picture
sRGB Coverage xy
97.5%
99.6%
sRGB Picture Mode
Standard
Custom Color
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
81.4%
84.5%
Adobe RGB Picture Mode
Standard
Custom Color
SDR Color Volume
9.7
9.6
sRGB Color Volume ITP Picture
sRGB In ICtCp
99.0%
97.5%
sRGB Picture Mode
Standard
Custom Color
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
89.4%
89.5%
Adobe RGB Picture Mode
Standard
Custom Color
HDR Color Gamut
0.0
9.1
Wide Color Gamut
N/A
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
N/A
97.2%
DCI-P3 Picture Mode
No HDR
Desktop
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
N/A
72.8%
Rec. 2020 Picture Mode
No HDR
Desktop
HDR Color Volume
0.0
8.8
DCI-P3 Color Volume ITP Picture
DCI-P3 In ICtCp
N/A
89.8%
DCI-P3 Picture Mode
No HDR
Desktop
Rec. 2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
N/A
71.0%
Rec. 2020 Picture Mode
No HDR
Desktop
Reflections
7.4
8.1
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
5.8%
4.4%
Indirect Reflections
3.8%
3.0%
Calculated Direct Reflections
2.0%
1.5%
Text Clarity
7.5
7.5
ClearType On
ClearType Off
Pixel Type
VA
IPS
Pixels
Subpixel Layout
RGB
RGB
Gradient
8.2
9.7
Gradient Picture
Color Depth
8 Bit
10 Bit
Motion
Refresh Rate
8.3
8.5
Native Refresh Rate
144 Hz
165 Hz
Max Refresh Rate
144 Hz
165 Hz
Max Refresh Rate Over DP
144 Hz
165 Hz
Max Refresh Rate Over HDMI
144 Hz
144 Hz
Max Refresh Rate Over DP @ 10-bit
N/A
165 Hz
Max Refresh Rate Over HDMI @ 10-Bit
N/A
60 Hz
Variable Refresh Rate (VRR)
FreeSync
Yes
Yes
G-SYNC
Compatible (Tested)
Compatible (NVIDIA Certified)
VRR Maximum
144 Hz
165 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
Variable Refresh Rate
Yes
Yes
Response Time @ Max Refresh Rate
6.4
9.0
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Strong
Extreme
Rise / Fall Time
6.6 ms
3.5 ms
Total Response Time
15.1 ms
6.3 ms
Overshoot Error
1.0%
1.9%
Worst 3 Rise / Fall Time
20.4 ms
4.2 ms
Worst 3 Total Response Time
36.9 ms
10.6 ms
Worst 3 Overshoot Error
7.8%
14.7%
Response Time @ 120Hz
6.5
8.8
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Strong
Super Fast
Rise / Fall Time
6.3 ms
4.2 ms
Total Response Time
15.3 ms
7.4 ms
Overshoot Error
1.6%
0.6%
Worst 3 Rise / Fall Time
19.7 ms
5.4 ms
Worst 3 Total Response Time
33.7 ms
10.8 ms
Worst 3 Overshoot Error
9.8%
4.8%
Response Time @ 60Hz
6.1
8.0
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Strong
Fast
Rise / Fall Time
5.2 ms
4.8 ms
Total Response Time
21.4 ms
11.6 ms
Overshoot Error
5.7%
1.0%
Worst 3 Rise / Fall Time
9.5 ms
6.5 ms
Worst 3 Total Response Time
44.4 ms
20.2 ms
Worst 3 Overshoot Error
23.1%
5.3%
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
Yes
No BFI
Maximum Frequency
144 Hz
N/A
Minimum Frequency
100 Hz
N/A
Longest Pulse Width Brightness
186 cd/m²
N/A
Shortest Pulse Width Brightness
68 cd/m²
N/A
Pulse Width Control
Yes
No BFI
Pulse Phase Control
No
No BFI
Pulse Amplitude Control
No
No BFI
VRR At The Same Time
No
No BFI
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
>1000 Hz
Inputs
Input Lag
9.0
9.0
Native Resolution @ Max Hz
3.7 ms
3.7 ms
Native Resolution @ 120Hz
5.0 ms
4.8 ms
Native Resolution @ 60Hz
8.6 ms
11.1 ms
Backlight Strobing (BFI)
5.1 ms
N/A
Resolution And Size
8.0
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
5.0
PS5 Compatibility Photo
4k @ 120Hz
No
No
4k @ 60Hz
No
No
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
No
Yes
VRR
No
No
Xbox Series X|S Compatibility
5.8
5.8
XSX Compatibility Photo
4k @ 120Hz
No
No
4k @ 60Hz
No
No
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
No
No
VRR
Yes
Yes
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.2)
1 (DP 1.4)
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
2 (HDMI 2.0)
HDMI 2.1 Rated Speed
No HDMI 2.1
No HDMI 2.1
DVI
No
No
VGA
No
No
Daisy Chaining
No
No
3.5mm Audio Out
1
2
HDR10
No
Yes
3.5mm Audio In
No
No
3.5mm Microphone In
No
No
USB
USB-A Ports
0
4
USB-A Rated Speed
No USB-A Ports
5Gbps (USB 3.2 Gen 1)
USB-B Upstream Port
No
Yes
USB-C Ports
0
0
USB-C Upstream
No USB-C Ports
No USB-C Ports
USB-C Rated Speed
No USB-C Ports
No USB-C Ports
USB-C Power Delivery
No USB-C Ports
No USB-C Ports
USB-C DisplayPort Alt Mode
No USB-C Ports
No USB-C Ports
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
No
No
RGB Illumination
No
Fixed (On/Off)
Multiple Input Display
No
No
KVM Switch
No
No
On-Screen Display (OSD)
OSD Picture
Check Price
27"
CQ27G2
SEE PRICE
Amazon.com27"
S2721DGF
SEARCH
Amazon.com27"
CQ27G2
SEE PRICE
Amazon.com27"
S2721DGF
SEARCH
B&H27"
S2721DGF
SEARCH
BestBuy.com27"
S2721DGF
SEARCH
Walmart.com
AOC CQ27G2
Dell S2721DGF
Comments
AOC CQ27G2 vs Dell S2721DGF: Main Discussion
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