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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
Dell Alienware AW2720HF vs Dell Alienware AW2521H
Side-by-Side Comparison
Products
Dell Alienware AW2720HF
Dell Alienware AW2521H
Tested using Methodology v1.1
Updated Dec 15, 2022 07:30 PM
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Walmart.comTested using Methodology v1.2
Updated Sep 12, 2024 07:11 PM
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Amazon.com
Max Refresh Rate240 Hz
Size27"
Pixel TypeIPS
Variable Refresh RateFreeSync
HDR10No
Native Resolution1920 x 1080
Max Refresh Rate360 Hz
Size25"
Pixel TypeIPS
Variable Refresh RateYes
HDR10Yes
Native Resolution1920 x 1080
Variants
- Alienware AW2720HF (27")
- Alienware AW2521H (25")
Our Verdict
Dell Alienware AW2720HF
Dell Alienware AW2521H
The Dell Alienware AW2521H is better than the Dell Alienware AW2720HF. The AW2521H has a much higher 360Hz refresh rate, it gets brighter, supports HDR, has a quicker response time at 60Hz, and has slightly lower input lag. However, the AW2720HF has better ergonomics and better reflection handling.
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27"
Alienware AW2720HF
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Walmart.com25"
Alienware AW2521H
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Amazon.com27"
Alienware AW2720HF
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Amazon.com25"
Alienware AW2521H
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Walmart.com27"
Alienware AW2720HF
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BestBuy.com25"
Alienware AW2521H
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BestBuy.comMain Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
7.5
7.6
Black Uniformity
2.4
5.4
Full Comparison
Design
Style
Design Picture
Curved
No
No
Curve Radius
Not Curved
Not Curved
Size
27"
25"
Weight (without stand)
10.1 lbs (4.6 kg)
9.9 lbs (4.5 kg)
Weight (with stand)
18.2 lbs (8.2 kg)
17.0 lbs (7.7 kg)
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
8.5
8.5
Build Quality Picture
Ergonomics
8.3
9.0
Ergonomics Picture
Back Picture
Height Adjustment
4.9" (12.5 cm)
5.1" (13.0 cm)
Tilt Range
-20° to 5°
-20° to 5°
Rotate Portrait/Landscape
Yes, Both Ways
Yes, Both Ways
Swivel Range
-30° to 30°
-20° to 20°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
18.3" (46.4 cm)
18.3" (46.5 cm)
Base Depth
10.0" (25.3 cm)
10.3" (26.1 cm)
Thickness (With Display)
8.9" (22.5 cm)
8.9" (22.6 cm)
Weight (With Display)
18.2 lbs (8.2 kg)
17.0 lbs (7.7 kg)
Display
Display Picture
Size
27"
25"
Housing Width
21.9" (55.7 cm)
Housing Height
13.0" (32.9 cm)
Thickness (Without Stand)
3.0" (7.6 cm)
3.3" (8.4 cm)
Weight (Without Stand)
10.1 lbs (4.6 kg)
9.9 lbs (4.5 kg)
Borders Size (Bezels)
0.3" (0.7 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" (0.7 cm)
0.3" (0.7 cm)
Thickness
Thickness Picture
Thickness (with stand)
8.9" (22.5 cm)
8.9" (22.6 cm)
Thickness (without stand)
3.0" (7.6 cm)
3.3" (8.4 cm)
Picture Quality
Contrast
5.8
6.5
Checkerboard Picture
Native Contrast
877 : 1
1,336 : 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
8.3
Real Scene
326 cd/m²
440 cd/m²
Peak 2% Window
333 cd/m²
435 cd/m²
Peak 10% Window
335 cd/m²
436 cd/m²
Peak 25% Window
335 cd/m²
436 cd/m²
Peak 50% Window
335 cd/m²
437 cd/m²
Peak 100% Window
335 cd/m²
437 cd/m²
Sustained 2% Window
333 cd/m²
434 cd/m²
Sustained 10% Window
335 cd/m²
436 cd/m²
Sustained 25% Window
335 cd/m²
436 cd/m²
Sustained 50% Window
335 cd/m²
437 cd/m²
Sustained 100% Window
335 cd/m²
437 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.000
Minimum Brightness
36 cd/m²
HDR Brightness
0.0
7.1
EOTF
VESA DisplayHDR Certification
No Certification
Real Scene
N/A
457 cd/m²
Peak 2% Window
N/A
464 cd/m²
Peak 10% Window
N/A
466 cd/m²
Peak 25% Window
N/A
466 cd/m²
Peak 50% Window
N/A
467 cd/m²
Peak 100% Window
N/A
466 cd/m²
Sustained 2% Window
N/A
464 cd/m²
Sustained 10% Window
N/A
466 cd/m²
Sustained 25% Window
N/A
466 cd/m²
Sustained 50% Window
N/A
466 cd/m²
Sustained 100% Window
N/A
466 cd/m²
Automatic Brightness Limiting (ABL)
N/A
0.000
Horizontal Viewing Angle
8.4
8.0
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
45°
35°
Color Washout From Right
47°
37°
Horizontal Hue Graph
Color Shift From Left
50°
47°
Color Shift From Right
53°
50°
Horizontal Lightness Graph
Brightness Loss From Left
47°
38°
Brightness Loss From Right
50°
41°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
55°
58°
Gamma Shift From Right
58°
59°
Vertical Viewing Angle
6.3
7.1
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
29°
28°
Color Washout From Above
35°
29°
Vertical Hue Graph
Color Shift From Below
21°
69°
Color Shift From Above
37°
67°
Vertical Lightness Graph
Brightness Loss From Below
35°
32°
Brightness Loss From Above
39°
33°
Black Level Raise From Below
20°
49°
Black Level Raise From Above
52°
70°
Gamma Shift From Below
27°
28°
Gamma Shift From Above
35°
30°
Gray Uniformity
8.8
8.0
50% Uniformity Picture
50% Std. Dev.
2.697%
3.463%
50% DSE
0.104%
0.136%
5% Uniformity Picture
5% Std. Dev.
0.155%
5% DSE
0.035%
Black Uniformity
2.4
5.4
Native Black Uniformity Picture
Native Std. Dev.
4.406%
2.390%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
7.3
8.7
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
RPG
Custom Color
sRGB Gamut Area xy
98.2%
White Balance dE (Avg.)
2.48
2.90
Color Temperature (Avg.)
6,224 K
7,005 K
Gamma (Avg.)
2.39
2.21
Color dE (Avg.)
3.85
1.81
Contrast Setting
75
75
RGB Settings
100-100-100
100-100-100
Gamma Setting
No Gamma Setting
No Gamma Setting
Brightness Setting
24
75
Measured Brightness
103 cd/m²
205 cd/m²
Brightness Locked
No
Color Accuracy (Post-Calibration)
9.6
9.6
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom Color
Custom Color
sRGB Gamut Area xy
97.6%
White Balance dE (Avg.)
0.53
0.52
Color Temperature (Avg.)
6,542 K
6,516 K
Gamma (Avg.)
2.17
2.18
Color dE (Avg.)
0.53
0.54
Contrast Setting
73
75
RGB Settings
95-99-100
100-98-90
Gamma Setting
No Gamma Setting
No Gamma Setting
Brightness Setting
29
30
Measured Brightness
101 cd/m²
101 cd/m²
ICC Profile
SDR Color Gamut
8.7
9.0
sRGB Color Gamut Picture
sRGB Coverage xy
97.2%
98.8%
sRGB Picture Mode
Custom Color
Custom Color
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
76.5%
73.0%
Adobe RGB Picture Mode
Custom Color
Custom Color
SDR Color Volume
8.9
9.3
sRGB Color Volume ITP Picture
sRGB In ICtCp
96.1%
96.8%
sRGB Picture Mode
Custom Color
Custom Color
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
82.1%
78.0%
Adobe RGB Picture Mode
Custom Color
Custom Color
HDR Color Gamut
0.0
6.7
Wide Color Gamut
N/A
No
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
81.3%
DCI-P3 Picture Mode
No HDR
Custom Color
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
N/A
58.3%
Rec. 2020 Picture Mode
No HDR
Custom Color
DCI P3 xy
N/A
HDR Color Volume
0.0
7.6
DCI-P3 Color Volume ITP Picture
DCI-P3 In ICtCp
N/A
77.5%
DCI-P3 Picture Mode
No HDR
Custom Color
Rec. 2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
N/A
55.9%
Rec. 2020 Picture Mode
No HDR
Custom Color
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
8.0
7.5
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
5.2%
5.8%
Indirect Reflections
4.3%
4.0%
Calculated Direct Reflections
0.9%
1.8%
Text Clarity
7.0
7.0
ClearType On
ClearType Off
Pixel Type
IPS
IPS
Pixels
Subpixel Layout
RGB
RGB
Gradient
8.0
9.6
Gradient Picture
Color Depth
8 Bit
10 Bit
Color Bleed
9.9
Color Bleed Horizontal
Pixel Row Error
0.000%
Color Bleed Vertical
Pixel Column Error
0.021%
Motion
Refresh Rate
9.3
Native Refresh Rate
240 Hz
360 Hz
Max Refresh Rate
240 Hz
360 Hz
Max Refresh Rate Over DP
360 Hz
Max Refresh Rate Over HDMI
240 Hz
Max Refresh Rate Over DP @ 10-bit
300 Hz
Max Refresh Rate Over HDMI @ 10-Bit
144 Hz
Variable Refresh Rate (VRR)
FreeSync
Yes
No
G-SYNC
Compatible (NVIDIA Certified)
Yes (Native)
VRR Maximum
240 Hz
360 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
Variable Refresh Rate
FreeSync
Yes
Native
240 Hz
360 Hz
Max Refresh Rate
240 Hz
360 Hz
Variable Refresh Rate
Yes
Response Time @ Max Refresh Rate
9.7
9.2
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Fast
Fast
Rise / Fall Time
3.0 ms
3.1 ms
Total Response Time
5.8 ms
6.9 ms
Overshoot Error
0.8%
0.0%
Worst 3 Rise / Fall Time
3.1 ms
5.5 ms
Worst 3 Total Response Time
7.1 ms
10.2 ms
Worst 3 Overshoot Error
1.0%
0.0%
Response Time @ 120Hz
8.9
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Fast
Rise / Fall Time
3.8 ms
Total Response Time
7.6 ms
Overshoot Error
1.4%
Worst 3 Rise / Fall Time
5.1 ms
Worst 3 Total Response Time
11.5 ms
Worst 3 Overshoot Error
5.5%
Response Time @ 60Hz
7.9
8.0
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Fast
Fast
Rise / Fall Time
3.9 ms
4.3 ms
Total Response Time
17.3 ms
12.3 ms
Overshoot Error
6.8%
1.2%
Worst 3 Rise / Fall Time
4.1 ms
6.1 ms
Worst 3 Total Response Time
21.0 ms
22.1 ms
Worst 3 Overshoot Error
9.2%
5.1%
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
No BFI
Yes
Maximum Frequency
N/A
240 Hz
Minimum Frequency
N/A
144 Hz
Longest Pulse Width Brightness
217 cd/m²
Shortest Pulse Width Brightness
22 cd/m²
Pulse Width Control
Yes
Pulse Phase Control
No
Pulse Amplitude Control
Yes
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
9.6
9.2
Native Resolution @ Max Hz
2.8 ms
1.7 ms
Native Resolution @ 120Hz
4.8 ms
Native Resolution @ 60Hz
14.3 ms
8.4 ms
Variable Refresh Rate
3.0 ms
Variable Refresh Rate @ 60Hz
15.1 ms
10 Bit HDR
N/A
Backlight Strobing (BFI)
N/A
5.5 ms
Resolution And Size
7.1
6.7
Native Resolution
1920 x 1080
1920 x 1080
Aspect Ratio
16:9
16:9
Megapixels
2.1 MP
2.1 MP
Pixel Density
82 PPI
91 PPI
Measured Screen Diagonal
27.0"
24.5"
Screen Area
310 in²
255 in²
PS5 Compatibility
7.0
PS5 Compatibility Photo
4k @ 120Hz
No
4k @ 60Hz
No
1440p @ 120Hz
No
1440p @ 60Hz
No
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
HDR
Yes
VRR
Yes
Xbox Series X|S Compatibility
4.2
XSX Compatibility Photo
4k @ 120Hz
No
4k @ 60Hz
No
1440p @ 120Hz
No
1440p @ 60Hz
No
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 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
2
HDR10
No
Yes
3.5mm Audio In
No
3.5mm Microphone In
No
No
DisplayPort Out
No
USB
4 (USB 3.0)
4
USB C
No
0
Digital Optical Audio Out
No
Analog Audio Out RCA
No
Power Supply
Internal
Internal
USB
USB-A Ports
4 (USB 3.0)
4
USB-A Rated Speed
5Gbps (USB 3.2 Gen 1)
USB-B Upstream Port
Yes
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
No
No
RGB Illumination
Controllable
Controllable
Multiple Input Display
No
No
KVM Switch
No
HDR10
No
Yes
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
Check Price
27"
Alienware AW2720HF
SEE PRICE
Walmart.com25"
Alienware AW2521H
SEE PRICE
Amazon.com27"
Alienware AW2720HF
SEE PRICE
Amazon.com25"
Alienware AW2521H
SEE PRICE
Walmart.com27"
Alienware AW2720HF
SEARCH
BestBuy.com25"
Alienware AW2521H
SEARCH
BestBuy.com
Dell Alienware AW2720HF
Dell Alienware AW2521H
Comments
Dell Alienware AW2720HF vs Dell Alienware AW2521H: Main Discussion
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