Products
Dell Alienware AW2721D
Samsung Odyssey G7 S28AG70
Tested using Methodology v1.2
Updated Aug 11, 2025 03:50 PM
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Amazon.com
Tested using Methodology v1.2
Updated Jul 14, 2025 03:42 PM
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Amazon.com
Max Refresh Rate
240 Hz
Size
27"
Pixel Type
IPS
Variable Refresh Rate
Yes
HDR10
Yes
Native Resolution
2560 x 1440
Max Refresh Rate
144 Hz
Size
28"
Pixel Type
IPS
Variable Refresh Rate
Yes
HDR10
Yes
Native Resolution
3840 x 2160
Our Verdict
Dell Alienware AW2721D
Samsung Odyssey G7 S28AG70
The Dell Alienware AW2721D and the Samsung Odyssey G5 S27AG50 are different types of gaming monitors. The Dell is meant for high-frame-rate gaming because it has a 240Hz refresh rate with a 1440p resolution, and it has native G-SYNC VRR support. The Dell has a faster response time, but there's also more overshoot, and motion handling is fantastic between each. The Samsung is meant for high-resolution gaming because it has a 4k resolution with FreeSync support and HDMI 2.1 inputs, making it a good choice for console gaming. The Dell gets brighter, but the Samsung has better reflection handling. Also, while they each have local dimming features, they both perform terribly.
Variants
- Alienware AW2721D (27")
- Odyssey G7 S28AG70 (28")
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27"
Alienware AW2721D
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28"
Odyssey G7 S28AG70
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27"
Alienware AW2721D
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28"
Odyssey G7 S28AG70
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27"
Alienware AW2721D
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B&H
28"
Odyssey G7 S28AG70
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B&H
27"
Alienware AW2721D
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28"
Odyssey G7 S28AG70
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Samsung.com
28"
Odyssey G7 S28AG70
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Walmart.com
Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
7.9
8.0
Resolution And Size
8.0
9.0
Text Clarity
7.5
9.0
SDR Brightness
8.6
7.5
Full Comparison
Design
Style
Design Picture
Curved
No
No
Curve Radius
Not Curved
Not Curved
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
8.5
7.0
Build Quality Picture
Ergonomics
9.0
8.1
Ergonomics Picture
Back Picture
Height Adjustment
5.1" (13.0 cm)
4.7" (12.0 cm)
Tilt Range
-21° to 5°
-12.5° to 10°
Rotate Portrait/Landscape
Yes, Both Ways
Yes, Clockwise
Swivel Range
-20° to 20°
-15° to 15°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
18.3" (46.5 cm)
17.8" (45.1 cm)
Base Depth
10.0" (25.4 cm)
9.1" (23.1 cm)
Thickness (With Display)
9.1" (23.0 cm)
7.8" (19.8 cm)
Weight (With Display)
24.5 lbs (11.1 kg)
17.1 lbs (7.8 kg)
Display
Display Picture
Size
27"
28"
Housing Width
23.9" (60.8 cm)
25.1" (63.7 cm)
Housing Height
14.0" (35.5 cm)
15.0" (38.0 cm)
Thickness (Without Stand)
3.3" (8.3 cm)
4.0" (10.2 cm)
Weight (Without Stand)
14.1 lbs (6.4 kg)
13.4 lbs (6.1 kg)
Borders Size (Bezels)
0.2" (0.5 cm)
0.3" (0.8 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
Internal
External Brick
Picture Quality
Contrast
6.1
6.2
Checkerboard Picture
Native Contrast
1,088 : 1
1,155 : 1
Contrast With Local Dimming
1,026 : 1
1,176 : 1
Local Dimming
3.0
2.0
Local Dimming Video
Local Dimming
Yes
Yes
Backlight
Edge
Edge
SDR Brightness
8.6
7.5
Real Scene
545 cd/m²
285 cd/m²
Peak 2% Window
544 cd/m²
360 cd/m²
Peak 10% Window
586 cd/m²
372 cd/m²
Peak 25% Window
586 cd/m²
361 cd/m²
Peak 50% Window
480 cd/m²
347 cd/m²
Peak 100% Window
479 cd/m²
315 cd/m²
Sustained 2% Window
536 cd/m²
358 cd/m²
Sustained 10% Window
572 cd/m²
370 cd/m²
Sustained 25% Window
576 cd/m²
360 cd/m²
Sustained 50% Window
465 cd/m²
346 cd/m²
Sustained 100% Window
474 cd/m²
314 cd/m²
Automatic Brightness Limiting (ABL)
0.014
0.010
Minimum Brightness
38 cd/m²
28 cd/m²
HDR Brightness
7.6
6.3
EOTF
VESA DisplayHDR Certification
DisplayHDR 600
DisplayHDR 400 - 1.0/1.1
Real Scene
562 cd/m²
315 cd/m²
Peak 2% Window
698 cd/m²
395 cd/m²
Peak 10% Window
788 cd/m²
408 cd/m²
Peak 25% Window
621 cd/m²
378 cd/m²
Peak 50% Window
481 cd/m²
380 cd/m²
Peak 100% Window
481 cd/m²
345 cd/m²
Sustained 2% Window
480 cd/m²
393 cd/m²
Sustained 10% Window
495 cd/m²
406 cd/m²
Sustained 25% Window
515 cd/m²
377 cd/m²
Sustained 50% Window
467 cd/m²
378 cd/m²
Sustained 100% Window
470 cd/m²
344 cd/m²
Automatic Brightness Limiting (ABL)
0.006
0.009
Horizontal Viewing Angle
7.8
7.6
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
39°
40°
Color Washout From Right
39°
41°
Horizontal Hue Graph
Color Shift From Left
54°
47°
Color Shift From Right
55°
49°
Horizontal Lightness Graph
Brightness Loss From Left
44°
43°
Brightness Loss From Right
44°
44°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
40°
36°
Gamma Shift From Right
41°
39°
Vertical Viewing Angle
8.4
7.8
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
39°
33°
Color Washout From Above
38°
34°
Vertical Hue Graph
Color Shift From Below
52°
52°
Color Shift From Above
52°
58°
Vertical Lightness Graph
Brightness Loss From Below
42°
36°
Brightness Loss From Above
41°
37°
Black Level Raise From Below
70°
70°
Black Level Raise From Above
70°
70°
Gamma Shift From Below
68°
49°
Gamma Shift From Above
70°
57°
Gray Uniformity
8.3
7.7
50% Uniformity Picture
50% Std. Dev.
2.762%
3.428%
50% DSE
0.132%
0.156%
Black Uniformity
4.3
5.4
Native Black Uniformity Picture
Native Std. Dev.
2.769%
1.702%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
5.472%
6.039%
Color Accuracy (Pre-Calibration)
6.1
7.7
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Warm
sRGB
sRGB Gamut Area xy
136.9%
104.9%
White Balance dE (Avg.)
2.66
4.78
Color Temperature (Avg.)
6,384 K
6,416 K
Gamma (Avg.)
2.16
2.20
Color dE (Avg.)
3.42
3.07
Contrast Setting
75
N/A
RGB Settings
100-100-100
N/A
Gamma Setting
No Gamma Setting
N/A
Brightness Setting
50
50
Measured Brightness
206 cd/m²
310 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.8
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom Color
Custom
sRGB Gamut Area xy
100.1%
98.2%
White Balance dE (Avg.)
0.43
0.42
Color Temperature (Avg.)
6,520 K
6,486 K
Gamma (Avg.)
2.18
2.17
Color dE (Avg.)
0.23
0.38
Contrast Setting
75
75
RGB Settings
100-88-80
49-50-47
Gamma Setting
No Gamma Setting
Mode 1
Brightness Setting
21
26
Measured Brightness
100 cd/m²
100 cd/m²
SDR Color Gamut
9.5
9.4
sRGB Color Gamut Picture
sRGB Coverage xy
99.8%
99.2%
sRGB Picture Mode
Custom Color
Custom
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
85.6%
83.2%
Adobe RGB Picture Mode
Custom Color
Custom
SDR Color Volume
9.6
9.6
sRGB Color Volume ITP Picture
sRGB In ICtCp
98.1%
98.1%
sRGB Picture Mode
Custom Color
Custom
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
88.1%
89.2%
Adobe RGB Picture Mode
Custom Color
Custom
HDR Color Gamut
9.2
7.4
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
97.7%
86.7%
DCI-P3 Picture Mode
Gamer 1
HDR Dynamic
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
71.9%
63.8%
Rec. 2020 Picture Mode
Gamer 1
HDR Dynamic
HDR Color Volume
8.7
7.7
DCI-P3 Color Volume ITP Picture
DCI-P3 In ICtCp
88.9%
78.6%
DCI-P3 Picture Mode
Gamer 1
HDR Dynamic
Rec. 2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
70.5%
57.2%
Rec. 2020 Picture Mode
Gamer 1
HDR Dynamic
Reflections
6.3
7.4
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
7.8%
5.3%
Indirect Reflections
4.2%
2.8%
Calculated Direct Reflections
3.5%
2.5%
Text Clarity
7.5
9.0
ClearType On
ClearType Off
Pixel Type
IPS
IPS
Pixels
Subpixel Layout
RGB
RGB
Gradient
9.6
9.8
Gradient Picture
Color Depth
10 Bit
10 Bit
Motion
Refresh Rate
9.0
8.3
Native Refresh Rate
240 Hz
144 Hz
Max Refresh Rate
240 Hz
144 Hz
Max Refresh Rate Over DP
240 Hz
144 Hz
Max Refresh Rate Over HDMI
144 Hz
144 Hz
Max Refresh Rate Over DP @ 10-bit
144 Hz
144 Hz
Max Refresh Rate Over HDMI @ 10-Bit
60 Hz
144 Hz
Variable Refresh Rate (VRR)
FreeSync
Compatible (Tested)
Yes
G-SYNC
Yes (Native)
Compatible (NVIDIA Certified)
VRR Maximum
240 Hz
144 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
Variable Refresh Rate
Yes
Yes
Response Time @ Max Refresh Rate
8.8
8.6
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Fast
Adaptive Sync
Rise / Fall Time
2.6 ms
2.8 ms
Total Response Time
7.1 ms
8.8 ms
Overshoot Error
8.9%
7.6%
Worst 3 Rise / Fall Time
3.3 ms
3.6 ms
Worst 3 Total Response Time
10.8 ms
12.3 ms
Worst 3 Overshoot Error
27.8%
22.1%
Response Time @ 120Hz
7.8
8.4
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Fast
Adaptive Sync
Rise / Fall Time
3.2 ms
2.8 ms
Total Response Time
12.0 ms
10.2 ms
Overshoot Error
12.9%
9.2%
Worst 3 Rise / Fall Time
4.1 ms
3.6 ms
Worst 3 Total Response Time
16.5 ms
14.2 ms
Worst 3 Overshoot Error
31.0%
26.6%
Response Time @ 60Hz
7.4
7.3
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Fast
Adaptive Sync
Rise / Fall Time
4.3 ms
2.8 ms
Total Response Time
16.1 ms
17 ms
Overshoot Error
5.4%
10.6%
Worst 3 Rise / Fall Time
6.1 ms
3.5 ms
Worst 3 Total Response Time
21.8 ms
23.9 ms
Worst 3 Overshoot Error
14.0%
33.8%
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
No BFI
Yes
Maximum Frequency
N/A
144 Hz
Minimum Frequency
N/A
120 Hz
Longest Pulse Width Brightness
N/A
120 cd/m²
Shortest Pulse Width Brightness
N/A
120 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
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
9.0
8.9
Native Resolution @ Max Hz
3.0 ms
4.1 ms
Native Resolution @ 120Hz
4.8 ms
4.7 ms
Native Resolution @ 60Hz
12.4 ms
12.8 ms
Backlight Strobing (BFI)
N/A
4.2 ms
Resolution And Size
8.0
9.0
Native Resolution
2560 x 1440
3840 x 2160
Aspect Ratio
16:9
16:9
Megapixels
3.7 MP
8.3 MP
Pixel Density
109 PPI
160 PPI
Measured Screen Diagonal
27.0"
27.9"
Screen Area
310 in²
330 in²
PS5 Compatibility
7.0
10
PS5 Compatibility Photo
4k @ 120Hz
No
Yes
4k @ 60Hz
No
Yes
1440p @ 120Hz
Yes
No
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
Yes
Yes
VRR
Yes
Yes
Xbox Series X|S Compatibility
5.8
10
XSX Compatibility Photo
4k @ 120Hz
No
Yes
4k @ 60Hz
No
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
No
Yes
VRR
Yes
Yes
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.4)
1 (DP 1.4)
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
2 (HDMI 2.1)
HDMI 2.1 Rated Speed
No HDMI 2.1
40Gbps (FRL 10x4)
DVI
No
No
VGA
No
No
Daisy Chaining
No
No
3.5mm Audio Out
2
1
HDR10
Yes
Yes
3.5mm Audio In
No
No
3.5mm Microphone In
No
No
USB
USB-A Ports
4
2
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
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
Controllable
Controllable
Multiple Input Display
No
PIP
KVM Switch
No
No
On-Screen Display (OSD)
OSD Picture
Check Price
27"
Alienware AW2721D
SEE PRICE
Amazon.com
28"
Odyssey G7 S28AG70
SEE PRICE
Amazon.com
27"
Alienware AW2721D
SEE PRICE
Walmart.com
28"
Odyssey G7 S28AG70
SEE PRICE
BestBuy.com
27"
Alienware AW2721D
SEARCH
B&H
28"
Odyssey G7 S28AG70
SEARCH
B&H
27"
Alienware AW2721D
SEARCH
BestBuy.com
28"
Odyssey G7 S28AG70
SEARCH
Samsung.com
28"
Odyssey G7 S28AG70
SEARCH
Walmart.com
Dell Alienware AW2721D
Samsung Odyssey G7 S28AG70
Comments
Dell Alienware AW2721D vs Samsung Odyssey G7 S28AG70: Main Discussion
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