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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
AOC CQ27G2 vs Dell S2721HGF
Side-by-Side Comparison
Products
AOC CQ27G2
Dell S2721HGF
Tested using Methodology v1.2
Updated Mar 06, 2024 09:05 PM
SEE PRICE
Amazon.comTested using Methodology v1.1
Updated May 29, 2023 03:10 PM
SEE PRICE
Amazon.com
Max Refresh Rate144 Hz
Size27"
Pixel TypeVA
Variable Refresh RateYes
HDR10No
Native Resolution2560 x 1440
Max Refresh Rate144 Hz
Size27"
Pixel TypeVA
Variable Refresh RateAdaptive Sync
HDR10No
Native Resolution1920 x 1080
Variants
- CQ27G2 (27")
- S2721HGF (27")
Our Verdict
AOC CQ27G2
Dell S2721HGF
The Dell S2721HGF and the AOC CQ27G2 score similarly overall; however, there are a few differences between them. The AOC has a higher 1440p resolution compared to the Dell's 1080p, making it a better choice if you also use it for work, but its response time isn't as good as the Dell's, especially in dark scenes. Both monitors have VA panels that are well-suited for dark rooms; however, the Dell is better for well-lit rooms because it gets a lot brighter. If you often share your screen with others, the Dell has wider viewing angles, but it doesn't allow for any swivel adjustment, which the AOC does.
Main Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
6.8
7.3
Ergonomics
7.6
5.2
Resolution And Size
8.0
7.1
SDR Brightness
6.3
7.5
Horizontal Viewing Angle
5.5
6.9
Black Uniformity
3.0
5.4
Full Comparison
Design
Style
Design Picture
Curved
Yes
Yes
Curve Radius
1500R
1500R
Size
27"
27"
Weight (without stand)
9.0 lbs (4.1 kg)
9.0 lbs (4.1 kg)
Weight (with stand)
11.9 lbs (5.4 kg)
15.0 lbs (6.8 kg)
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.5
8.0
Build Quality Picture
Ergonomics
7.6
5.2
Ergonomics Picture
Back Picture
Height Adjustment
5.1" (13.0 cm)
5.0" (12.8 cm)
Tilt Range
-20° to 5°
-21° to 5°
Rotate Portrait/Landscape
No
No
Swivel Range
-30° to 30°
No swivel
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
17.2" (43.7 cm)
9.2" (23.3 cm)
Base Depth
9.1" (23.0 cm)
7.6" (19.4 cm)
Thickness (With Display)
7.7" (19.5 cm)
6.2" (15.8 cm)
Weight (With Display)
11.9 lbs (5.4 kg)
15.0 lbs (6.8 kg)
Display
Display Picture
Size
27"
27"
Housing Width
24.1" (61.1 cm)
Housing Height
14.4" (36.6 cm)
Thickness (Without Stand)
2.9" (7.3 cm)
2.8" (7.1 cm)
Weight (Without Stand)
9.0 lbs (4.1 kg)
9.0 lbs (4.1 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
Back
Back Picture
Wall Mount
VESA 100x100
VESA 100x100
Borders
Borders Picture
Borders
0.3" (0.8 cm)
0.3" (0.7 cm)
Thickness
Thickness Picture
Thickness (with stand)
7.7" (19.5 cm)
6.2" (15.8 cm)
Thickness (without stand)
2.9" (7.3 cm)
2.8" (7.1 cm)
Picture Quality
Contrast
8.3
8.1
Checkerboard Picture
Native Contrast
3,858 : 1
3,432 : 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
6.3
7.5
Real Scene
225 cd/m²
288 cd/m²
Peak 2% Window
196 cd/m²
320 cd/m²
Peak 10% Window
196 cd/m²
322 cd/m²
Peak 25% Window
197 cd/m²
322 cd/m²
Peak 50% Window
197 cd/m²
322 cd/m²
Peak 100% Window
197 cd/m²
322 cd/m²
Sustained 2% Window
196 cd/m²
320 cd/m²
Sustained 10% Window
196 cd/m²
321 cd/m²
Sustained 25% Window
196 cd/m²
322 cd/m²
Sustained 50% Window
197 cd/m²
322 cd/m²
Sustained 100% Window
197 cd/m²
322 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.000
Minimum Brightness
38 cd/m²
HDR Brightness
0.0
0.0
EOTF
VESA DisplayHDR Certification
No Certification
Real Scene
N/A
N/A
Peak 2% Window
N/A
N/A
Peak 10% Window
N/A
N/A
Peak 25% Window
N/A
N/A
Peak 50% Window
N/A
N/A
Peak 100% Window
N/A
N/A
Sustained 2% Window
N/A
N/A
Sustained 10% Window
N/A
N/A
Sustained 25% Window
N/A
N/A
Sustained 50% Window
N/A
N/A
Sustained 100% Window
N/A
N/A
Automatic Brightness Limiting (ABL)
N/A
N/A
Horizontal Viewing Angle
5.5
6.9
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
25°
46°
Color Washout From Right
25°
45°
Horizontal Hue Graph
Color Shift From Left
41°
68°
Color Shift From Right
42°
69°
Horizontal Lightness Graph
Brightness Loss From Left
28°
46°
Brightness Loss From Right
28°
45°
Black Level Raise From Left
16°
23°
Black Level Raise From Right
16°
21°
Gamma Shift From Left
18°
18°
Gamma Shift From Right
17°
17°
Vertical Viewing Angle
5.1
6.0
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
26°
33°
Color Washout From Above
27°
34°
Vertical Hue Graph
Color Shift From Below
41°
53°
Color Shift From Above
40°
54°
Vertical Lightness Graph
Brightness Loss From Below
29°
35°
Brightness Loss From Above
30°
35°
Black Level Raise From Below
11°
16°
Black Level Raise From Above
11°
15°
Gamma Shift From Below
11°
17°
Gamma Shift From Above
10°
19°
Gray Uniformity
8.1
8.6
50% Uniformity Picture
50% Std. Dev.
2.124%
3.023%
50% DSE
0.152%
0.114%
5% Uniformity Picture
5% Std. Dev.
0.599%
5% DSE
0.072%
Black Uniformity
3.0
5.4
Native Black Uniformity Picture
Native Std. Dev.
3.987%
2.427%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
7.7
8.0
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Standard (sRGB)
Standard
sRGB Gamut Area xy
105.6%
White Balance dE (Avg.)
4.06
2.73
Color Temperature (Avg.)
7,316 K
6,353 K
Gamma (Avg.)
2.31
2.25
Color dE (Avg.)
2.97
2.27
Contrast Setting
50
75
RGB Settings
sRGB
100-100-100
Gamma Setting
Gamma 1
No Gamma Setting
Brightness Setting
90
75
Measured Brightness
188 cd/m²
250 cd/m²
Brightness Locked
Yes
Color Accuracy (Post-Calibration)
9.5
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Standard (User)
Custom Color
sRGB Gamut Area xy
97.3%
White Balance dE (Avg.)
0.68
0.48
Color Temperature (Avg.)
6,512 K
6,536 K
Gamma (Avg.)
2.19
2.18
Color dE (Avg.)
0.62
0.61
Contrast Setting
50
78
RGB Settings
51-50-45
100-98-100
Gamma Setting
Gamma 1
No Gamma Setting
Brightness Setting
38
21
Measured Brightness
101 cd/m²
99 cd/m²
ICC Profile
SDR Color Gamut
9.1
8.6
sRGB Color Gamut Picture
sRGB Coverage xy
97.5%
96.8%
sRGB Picture Mode
Standard
Custom Color
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
81.4%
75.8%
Adobe RGB Picture Mode
Standard
Custom Color
SDR Color Volume
9.7
8.9
sRGB Color Volume ITP Picture
sRGB In ICtCp
99.0%
97.1%
sRGB Picture Mode
Standard
Custom Color
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
89.4%
81.3%
Adobe RGB Picture Mode
Standard
Custom Color
HDR Color Gamut
0.0
0.0
Wide Color Gamut
N/A
N/A
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
N/A
DCI-P3 Picture Mode
No HDR
No HDR
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
N/A
N/A
Rec. 2020 Picture Mode
No HDR
No HDR
DCI P3 xy
N/A
HDR Color Volume
0.0
0.0
DCI-P3 Color Volume ITP Picture
DCI-P3 In ICtCp
N/A
N/A
DCI-P3 Picture Mode
No HDR
No HDR
Rec. 2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
N/A
N/A
Rec. 2020 Picture Mode
No HDR
No HDR
Image Retention
10
Image Retention Picture
IR After 0 Min Recovery
0.00%
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
7.4
7.9
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
5.8%
4.5%
Indirect Reflections
3.8%
2.7%
Calculated Direct Reflections
2.0%
1.8%
Text Clarity
7.5
7.0
ClearType On
ClearType Off
Pixel Type
VA
VA
Pixels
Subpixel Layout
RGB
RGB
Gradient
8.2
8.6
Gradient Picture
Color Depth
8 Bit
8 Bit
Color Bleed
10
Color Bleed Horizontal
Pixel Row Error
0.000%
Color Bleed Vertical
Pixel Column Error
0.001%
Motion
Refresh Rate
8.3
Native Refresh Rate
144 Hz
144 Hz
Max Refresh Rate
144 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 (NVIDIA Certified)
VRR Maximum
144 Hz
144 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
Variable Refresh Rate
Yes
Adaptive Sync
Native
144 Hz
144 Hz
Max Refresh Rate
144 Hz
144 Hz
Variable Refresh Rate
Yes
Response Time @ Max Refresh Rate
6.4
8.6
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Strong
Super Fast
Rise / Fall Time
6.6 ms
5.0 ms
Total Response Time
15.1 ms
13.0 ms
Overshoot Error
1.0%
3.5%
Worst 3 Rise / Fall Time
20.4 ms
4.0 ms
Worst 3 Total Response Time
36.9 ms
14.8 ms
Worst 3 Overshoot Error
7.8%
8.3%
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
6.1
7.1
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Strong
Super Fast
Rise / Fall Time
5.2 ms
6.0 ms
Total Response Time
21.4 ms
19.6 ms
Overshoot Error
5.7%
6.4%
Worst 3 Rise / Fall Time
9.5 ms
6.5 ms
Worst 3 Total Response Time
44.4 ms
24.5 ms
Worst 3 Overshoot Error
23.1%
10.9%
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
Yes
Yes
Maximum Frequency
144 Hz
144 Hz
Minimum Frequency
100 Hz
120 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
9.0
9.5
Native Resolution @ Max Hz
3.7 ms
4.1 ms
Native Resolution @ 120Hz
5.0 ms
Native Resolution @ 60Hz
8.6 ms
8.9 ms
Variable Refresh Rate
4.9 ms
Variable Refresh Rate @ 60Hz
9.9 ms
10 Bit HDR
N/A
Backlight Strobing (BFI)
5.1 ms
8.9 ms
Resolution And Size
8.0
7.1
Native Resolution
2560 x 1440
1920 x 1080
Aspect Ratio
16:9
16:9
Megapixels
3.7 MP
2.1 MP
Pixel Density
109 PPI
82 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 1.2)
1 (DP 1.4)
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
2 (HDMI 1.4)
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
No
No
3.5mm Audio In
No
3.5mm Microphone In
No
No
DisplayPort Out
No
USB
0
No
USB C
0
No
Digital Optical Audio Out
No
Analog Audio Out RCA
No
Power Supply
Internal
Internal
USB
USB-A Ports
0
No
USB-A Rated Speed
No USB-A Ports
USB-B Upstream Port
No
USB-C Ports
0
No
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
No
No
RGB Illumination
No
No
Multiple Input Display
No
No
KVM Switch
No
HDR10
No
No
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
AOC CQ27G2
Dell S2721HGF
Comments
AOC CQ27G2 vs Dell S2721HGF: Main Discussion
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