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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
ASUS ROG Swift 360Hz PG259QN vs Dell Alienware AW2521H
Side-by-Side Comparison
Products
ASUS ROG Swift 360Hz PG259QN
Dell Alienware AW2521H
Tested using Methodology v1.2
Updated Feb 02, 2024 04:01 PM
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Updated Sep 12, 2024 07:11 PM
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Max Refresh Rate360 Hz
Size25"
Pixel TypeIPS
Variable Refresh RateYes
HDR10Yes
Native Resolution1920 x 1080
Max Refresh Rate360 Hz
Size25"
Pixel TypeIPS
Variable Refresh RateYes
HDR10Yes
Native Resolution1920 x 1080
Variants
- PG259QN (24.5")
- Alienware AW2521H (25")
Our Verdict
ASUS ROG Swift 360Hz PG259QN
Dell Alienware AW2521H
The ASUS ROG Swift 360Hz PG259QN and the Dell Alienware AW2521H are very similar 360Hz monitors. The Dell has a better response time, it gets brighter, and has better ergonomics. However, the ASUS has better reflection handling and better color accuracy.
Main Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
7.6
7.6
Full Comparison
Design
Style
Design Picture
Curved
No
No
Curve Radius
Not Curved
Not Curved
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
8.0
8.5
Build Quality Picture
Ergonomics
8.5
9.0
Ergonomics Picture
Back Picture
Height Adjustment
4.7" (12.0 cm)
5.1" (13.0 cm)
Tilt Range
-20° to 5°
-20° to 5°
Rotate Portrait/Landscape
Yes, Clockwise
Yes, Both Ways
Swivel Range
-25° to 25°
-20° to 20°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
20.9" (53.2 cm)
18.3" (46.5 cm)
Base Depth
9.7" (24.6 cm)
10.3" (26.1 cm)
Thickness (With Display)
9.3" (23.5 cm)
8.9" (22.6 cm)
Weight (With Display)
15.7 lbs (7.1 kg)
17.0 lbs (7.7 kg)
Display
Display Picture
Size
25"
25"
Housing Width
21.9" (55.6 cm)
21.9" (55.7 cm)
Housing Height
13.0" (32.9 cm)
13.0" (32.9 cm)
Thickness (Without Stand)
3.7" (9.5 cm)
3.3" (8.4 cm)
Weight (Without Stand)
7.7 lbs (3.5 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
External Brick
Internal
Picture Quality
Contrast
6.4
6.5
Checkerboard Picture
Native Contrast
1,296 : 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
8.1
8.3
Real Scene
355 cd/m²
440 cd/m²
Peak 2% Window
413 cd/m²
435 cd/m²
Peak 10% Window
417 cd/m²
436 cd/m²
Peak 25% Window
417 cd/m²
436 cd/m²
Peak 50% Window
418 cd/m²
437 cd/m²
Peak 100% Window
418 cd/m²
437 cd/m²
Sustained 2% Window
413 cd/m²
434 cd/m²
Sustained 10% Window
417 cd/m²
436 cd/m²
Sustained 25% Window
417 cd/m²
436 cd/m²
Sustained 50% Window
417 cd/m²
437 cd/m²
Sustained 100% Window
417 cd/m²
437 cd/m²
Automatic Brightness Limiting (ABL)
0.001
0.000
Minimum Brightness
39 cd/m²
36 cd/m²
HDR Brightness
6.7
7.1
EOTF
VESA DisplayHDR Certification
No Certification
No Certification
Real Scene
385 cd/m²
457 cd/m²
Peak 2% Window
429 cd/m²
464 cd/m²
Peak 10% Window
433 cd/m²
466 cd/m²
Peak 25% Window
434 cd/m²
466 cd/m²
Peak 50% Window
434 cd/m²
467 cd/m²
Peak 100% Window
434 cd/m²
466 cd/m²
Sustained 2% Window
428 cd/m²
464 cd/m²
Sustained 10% Window
433 cd/m²
466 cd/m²
Sustained 25% Window
433 cd/m²
466 cd/m²
Sustained 50% Window
434 cd/m²
466 cd/m²
Sustained 100% Window
434 cd/m²
466 cd/m²
Automatic Brightness Limiting (ABL)
0.001
0.000
Horizontal Viewing Angle
7.9
8.0
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
35°
35°
Color Washout From Right
34°
37°
Horizontal Hue Graph
Color Shift From Left
50°
47°
Color Shift From Right
50°
50°
Horizontal Lightness Graph
Brightness Loss From Left
39°
38°
Brightness Loss From Right
38°
41°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
59°
58°
Gamma Shift From Right
57°
59°
Vertical Viewing Angle
7.1
7.1
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
28°
28°
Color Washout From Above
29°
29°
Vertical Hue Graph
Color Shift From Below
64°
69°
Color Shift From Above
67°
67°
Vertical Lightness Graph
Brightness Loss From Below
31°
32°
Brightness Loss From Above
34°
33°
Black Level Raise From Below
53°
49°
Black Level Raise From Above
70°
70°
Gamma Shift From Below
28°
28°
Gamma Shift From Above
30°
30°
Gray Uniformity
8.0
8.0
50% Uniformity Picture
50% Std. Dev.
3.715%
3.463%
50% DSE
0.132%
0.136%
Black Uniformity
7.2
5.4
Native Black Uniformity Picture
Native Std. Dev.
1.166%
2.390%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
8.9
8.7
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
sRGB
Custom Color
sRGB Gamut Area xy
98.0%
98.2%
White Balance dE (Avg.)
2.33
2.90
Color Temperature (Avg.)
6,955 K
7,005 K
Gamma (Avg.)
2.14
2.21
Color dE (Avg.)
1.63
1.81
Contrast Setting
N/A
75
RGB Settings
Default
100-100-100
Gamma Setting
Default
No Gamma Setting
Brightness Setting
N/A
75
Measured Brightness
102 cd/m²
205 cd/m²
Brightness Locked
Yes
No
Color Accuracy (Post-Calibration)
9.6
9.6
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Racing Mode
Custom Color
sRGB Gamut Area xy
97.7%
97.6%
White Balance dE (Avg.)
0.43
0.52
Color Temperature (Avg.)
6,509 K
6,516 K
Gamma (Avg.)
2.18
2.18
Color dE (Avg.)
0.43
0.54
Contrast Setting
50
75
RGB Settings
100-94-88
100-98-90
Gamma Setting
2.2
No Gamma Setting
Brightness Setting
16
30
Measured Brightness
99 cd/m²
101 cd/m²
SDR Color Gamut
8.9
9.0
sRGB Color Gamut Picture
sRGB Coverage xy
98.3%
98.8%
sRGB Picture Mode
Racing Mode
Custom Color
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
73.0%
73.0%
Adobe RGB Picture Mode
Racing Mode
Custom Color
SDR Color Volume
9.3
9.3
sRGB Color Volume ITP Picture
sRGB In ICtCp
96.7%
96.8%
sRGB Picture Mode
Racing Mode
Custom Color
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
77.8%
78.0%
Adobe RGB Picture Mode
Racing Mode
Custom Color
HDR Color Gamut
6.8
6.7
Wide Color Gamut
No
No
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
81.9%
81.3%
DCI-P3 Picture Mode
HDR On
Custom Color
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
54.6%
58.3%
Rec. 2020 Picture Mode
HDR On
Custom Color
HDR Color Volume
7.0
7.6
DCI-P3 Color Volume ITP Picture
DCI-P3 In ICtCp
71.7%
77.5%
DCI-P3 Picture Mode
HDR On
Custom Color
Rec. 2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
51.5%
55.9%
Rec. 2020 Picture Mode
HDR On
Custom Color
Reflections
8.1
7.5
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
4.9%
5.8%
Indirect Reflections
4.1%
4.0%
Calculated Direct Reflections
0.8%
1.8%
Text Clarity
7.0
7.0
ClearType On
ClearType Off
Pixel Type
IPS
IPS
Pixels
Subpixel Layout
RGB
RGB
Gradient
9.6
9.6
Gradient Picture
Color Depth
10 Bit
10 Bit
Motion
Refresh Rate
9.3
9.3
Native Refresh Rate
360 Hz
360 Hz
Max Refresh Rate
360 Hz
360 Hz
Max Refresh Rate Over DP
360 Hz
360 Hz
Max Refresh Rate Over HDMI
240 Hz
240 Hz
Max Refresh Rate Over DP @ 10-bit
300 Hz
300 Hz
Max Refresh Rate Over HDMI @ 10-Bit
144 Hz
144 Hz
Variable Refresh Rate (VRR)
FreeSync
Compatible (Tested)
No
G-SYNC
Yes (Native)
Yes (Native)
VRR Maximum
360 Hz
360 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
Variable Refresh Rate
Yes
Yes
Response Time @ Max Refresh Rate
8.7
9.2
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
Fast
Rise / Fall Time
1.9 ms
3.1 ms
Total Response Time
6.4 ms
6.9 ms
Overshoot Error
14.3%
0.0%
Worst 3 Rise / Fall Time
2.9 ms
5.5 ms
Worst 3 Total Response Time
9.1 ms
10.2 ms
Worst 3 Overshoot Error
38.6%
0.0%
Response Time @ 120Hz
8.3
8.9
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
Fast
Rise / Fall Time
3.1 ms
3.8 ms
Total Response Time
10.7 ms
7.6 ms
Overshoot Error
8.6%
1.4%
Worst 3 Rise / Fall Time
3.7 ms
5.1 ms
Worst 3 Total Response Time
14.1 ms
11.5 ms
Worst 3 Overshoot Error
21.1%
5.5%
Response Time @ 60Hz
7.8
8.0
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
Fast
Rise / Fall Time
3.6 ms
4.3 ms
Total Response Time
14 ms
12.3 ms
Overshoot Error
5.1%
1.2%
Worst 3 Rise / Fall Time
5.0 ms
6.1 ms
Worst 3 Total Response Time
23.2 ms
22.1 ms
Worst 3 Overshoot Error
16.2%
5.1%
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
Yes
Yes
Maximum Frequency
240 Hz
240 Hz
Minimum Frequency
144 Hz
144 Hz
Longest Pulse Width Brightness
184 cd/m²
217 cd/m²
Shortest Pulse Width Brightness
18 cd/m²
22 cd/m²
Pulse Width Control
Yes
Yes
Pulse Phase Control
No
No
Pulse Amplitude Control
Yes
Yes
VRR At The Same Time
No
No
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
9.1
9.2
Native Resolution @ Max Hz
2.3 ms
1.7 ms
Native Resolution @ 120Hz
5.1 ms
4.8 ms
Native Resolution @ 60Hz
12.1 ms
8.4 ms
Backlight Strobing (BFI)
6.2 ms
5.5 ms
Resolution And Size
6.7
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
91 PPI
91 PPI
Measured Screen Diagonal
24.5"
24.5"
Screen Area
255 in²
255 in²
PS5 Compatibility
7.0
7.0
PS5 Compatibility Photo
4k @ 120Hz
No
No
4k @ 60Hz
No
No
1440p @ 120Hz
No
No
1440p @ 60Hz
No
No
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
Yes
Yes
VRR
Yes
Yes
Xbox Series X|S Compatibility
4.2
4.2
XSX Compatibility Photo
4k @ 120Hz
No
No
4k @ 60Hz
No
No
1440p @ 120Hz
No
No
1440p @ 60Hz
No
No
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 1.4)
1 (DP 1.4)
Mini DisplayPort
No
No
HDMI
1 (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
Yes
Yes
3.5mm Audio In
No
No
3.5mm Microphone In
No
No
USB
USB-A Ports
2
4
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
No
KVM Switch
No
No
On-Screen Display (OSD)
OSD Picture
ASUS ROG Swift 360Hz PG259QN
Dell Alienware AW2521H
Comments
ASUS ROG Swift 360Hz PG259QN vs Dell Alienware AW2521H: Main Discussion
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