Products
Cooler Master Tempest GP27U
Dell Alienware AW3225QF
Tested using Methodology v1.2
Updated May 07, 2025 01:19 PM
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Tested using Methodology v2.1.1
Updated Nov 07, 2025 02:09 PM
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Max Refresh Rate
160 Hz
Size
27"
Pixel Type
IPS
Native Resolution
3840 x 2160
Variable Refresh Rate
Yes
HDR10
Yes
Max Refresh Rate
240 Hz
Size
32"
Pixel Type
QD-OLED
Native Resolution
3840 x 2160
Variable Refresh Rate
Yes
HDR10
Yes
Our Verdict
Cooler Master Tempest GP27U
Dell Alienware AW3225QF
The Dell Alienware AW3225QF and the Cooler Master Tempest GP27U are both 4k gaming monitors with different characteristics. They use different panel technologies, like the Dell monitor's QD-OLED panel, which displays perfect blacks without any blooming, making it the better choice in dark rooms. However, if you want something for bright rooms, the Cooler Master has an advantage because of its high peak brightness. Besides that, the Dell is superior for gaming thanks to its higher refresh rate and faster response time, but the Cooler Master is better for general work use as it doesn't risk permanent burn-in.
Variants
- Tempest GP27U (27")
- Alienware AW3225QF (32")
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27"
Tempest GP27U
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32"
Alienware AW3225QF
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Tempest GP27U
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32"
Alienware AW3225QF
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Tempest GP27U
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32"
Alienware AW3225QF
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Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
8.4
Full Comparison
Design
Style
Design Picture
Curved
No
Yes
Curve Radius
Not Curved
1700R
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.0
8.5
Build Quality Picture
Ergonomics
8.6
7.2
Ergonomics Picture
Back Picture
Height Adjustment
4.3" (11.0 cm)
4.2" (10.7 cm)
Min Height To Top Of Panel
18.2" (46.2 cm)
Tilt Range
-20° to 5°
-21° to 5°
Rotate Portrait/Landscape
Yes, Both Ways
No
Swivel Range
-30° to 30°
-20° to 20°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
11.6" (29.4 cm)
16.9" (43.0 cm)
Base Depth
10.8" (27.4 cm)
11.6" (29.5 cm)
Thickness (With Display)
6.3" (16.0 cm)
10.0" (25.5 cm)
Weight (With Display)
15.2 lbs (6.9 kg)
19.4 lbs (8.8 kg)
Display
Display Picture
Size
27"
32"
Housing Width
24.3" (61.6 cm)
28.1" (71.4 cm)
Housing Height
14.3" (36.3 cm)
16.6" (42.1 cm)
Thickness (Without Stand)
2.8" (7.0 cm)
3.6" (9.2 cm)
Weight (Without Stand)
11.7 lbs (5.3 kg)
12.9 lbs (5.9 kg)
Borders Size (Bezels)
0.2" (0.5 cm)
0.4" (1.0 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
External Brick
Internal
Picture Quality
Contrast
6.4
10
Checkerboard Picture
Native Contrast
1,072 : 1
Inf : 1
Contrast With Local Dimming
2,209 : 1
Inf : 1
Local Dimming
6.0
10
Local Dimming Video
Local Dimming
Yes
No
Backlight
Full-Array
No Backlight
SDR Brightness
8.8
6.7
Real Scene
634 cd/m²
234 cd/m²
Peak 2% Window
577 cd/m²
245 cd/m²
Peak 10% Window
772 cd/m²
245 cd/m²
Peak 25% Window
854 cd/m²
248 cd/m²
Peak 50% Window
758 cd/m²
250 cd/m²
Peak 100% Window
698 cd/m²
245 cd/m²
Sustained 2% Window
573 cd/m²
241 cd/m²
Sustained 10% Window
763 cd/m²
244 cd/m²
Sustained 25% Window
846 cd/m²
246 cd/m²
Sustained 50% Window
756 cd/m²
247 cd/m²
Sustained 100% Window
697 cd/m²
244 cd/m²
Automatic Brightness Limiting (ABL)
0.015
0.001
Minimum Brightness
52 cd/m²
26 cd/m²
HDR Brightness
9.1
6.8
EOTF
VESA DisplayHDR Certification
No Certification
DisplayHDR TRUE BLACK 400
Real Scene
1,127 cd/m²
420 cd/m²
Peak 2% Window
846 cd/m²
976 cd/m²
Peak 10% Window
1,550 cd/m²
448 cd/m²
Peak 25% Window
1,359 cd/m²
355 cd/m²
Peak 50% Window
1,274 cd/m²
300 cd/m²
Peak 100% Window
1,532 cd/m²
249 cd/m²
Sustained 2% Window
834 cd/m²
971 cd/m²
Sustained 10% Window
1,497 cd/m²
446 cd/m²
Sustained 25% Window
1,344 cd/m²
352 cd/m²
Sustained 50% Window
1,267 cd/m²
297 cd/m²
Sustained 100% Window
1,368 cd/m²
247 cd/m²
Automatic Brightness Limiting (ABL)
0.029
0.078
Gray Uniformity
8.0
9.3
50% Uniformity Picture
50% Std. Dev.
2.991%
0.531%
50% DSE
0.142%
0.100%
Black Uniformity
7.0
10
Native Black Uniformity Picture
Native Std. Dev.
1.684%
0.162%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
0.471%
N/A
Color Accuracy (Pre-Calibration)
6.6
9.7
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Standard (sRGB)
Creator (sRGB)
sRGB Gamut Area xy
95.1%
98.8%
White Balance dE (Avg.)
7.83
0.76
Color Temperature (Avg.)
6,060 K
6,452 K
Gamma (Avg.)
2.28
2.15
Color dE (Avg.)
4.58
0.42
Contrast Setting
70
75
RGB Settings
50-50-50
Default
Gamma Setting
2.2
2.2
Brightness Setting
50
75
Measured Brightness
350 cd/m²
167 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.4
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Standard
Custom Color
sRGB Gamut Area xy
102.0%
101.0%
White Balance dE (Avg.)
1.18
0.58
Color Temperature (Avg.)
6,491 K
6,492 K
Gamma (Avg.)
2.18
2.18
Color dE (Avg.)
0.77
0.48
Contrast Setting
70
75
RGB Settings
50-48-49
97-98-100
Gamma Setting
2.2
No Gamma Setting
Brightness Setting
4
37
Measured Brightness
104 cd/m²
100 cd/m²
SDR Color Gamut
9.9
9.8
sRGB Color Gamut Picture
sRGB Coverage xy
99.6%
100.0%
sRGB Picture Mode
Standard
Custom Color
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
99.6%
94.6%
Adobe RGB Picture Mode
Standard
Custom Color
HDR Color Gamut
9.4
9.5
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
97.4%
98.8%
DCI-P3 Picture Mode
Game
HDR Peak 1000
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
82.5%
78.3%
Rec. 2020 Picture Mode
Game
HDR Peak 1000
HDR Color Volume
8.4
8.8
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
84.7%
93.4%
DCI-P3 Picture Mode
Game
HDR Peak 1000
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
73.2%
45.6%
Rec. 2020 Picture Mode
Game
HDR Peak 1000
Viewing Angle
7.0
10
Viewing Angle Video
Chroma Graph
Color Washout From Left
27°
70°
Color Washout From Right
32°
70°
Hue Graph
Color Shift From Left
39°
70°
Color Shift From Right
45°
70°
Lightness Graph
Brightness Loss From Left
31°
70°
Brightness Loss From Right
36°
70°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
30°
70°
Gamma Shift From Right
35°
70°
Text Clarity
9.0
8.5
ClearType On
ClearType Off
Pixel Type
IPS
QD-OLED
Pixels
Subpixel Layout
RGB
Triangular RGB
Direct Reflections
6.7
Ring Light Picture
Direct Reflections Graph
Peak Direct Reflection Intensity
28.3%
Screen Finish
Matte
Glossy
Ambient Black Level Raise
4.5
Black Level Raise Picture
Ambient Black Level Raise Graph
Black Luminance @ 0 lx
0.00 cd/m²
Black Luminance @ 1000 lx
3.22 cd/m²
Total Reflected Light
8.8
Bright Room Off Picture
Total Reflection Ring Light Picture
Total Reflected Light Intensity
7,953% ⋅ pixel
Diffraction Artifacts
No
Gradient
9.6
9.8
Gradient Picture
Color Depth
10 Bit
10 Bit
Vertical Viewing Angle
7.5
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
31°
Color Washout From Above
35°
Vertical Hue Graph
Color Shift From Below
54°
Color Shift From Above
58°
Vertical Lightness Graph
Brightness Loss From Below
33°
Brightness Loss From Above
37°
Black Level Raise From Below
70°
Black Level Raise From Above
70°
Gamma Shift From Below
40°
Gamma Shift From Above
44°
SDR Color Volume
9.9
sRGB Color Volume ITP Picture
sRGB In ICtCp
99.0%
sRGB Picture Mode
Standard
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
98.8%
Adobe RGB Picture Mode
Standard
Reflections
7.3
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Glossy
Total Reflections
5.5%
Indirect Reflections
3.2%
Calculated Direct Reflections
2.4%
Motion
Refresh Rate
8.5
8.0
Native Refresh Rate
160 Hz
240 Hz
Max Refresh Rate
160 Hz
240 Hz
Max Refresh Rate Over DP
160 Hz
240 Hz
Max Refresh Rate Over HDMI
144 Hz
240 Hz
Max Refresh Rate Over DP @ 10-bit
160 Hz
240 Hz
Max Refresh Rate Over HDMI @ 10-Bit
144 Hz
240 Hz
DSC Toggle
No
DSC Off Max Refresh Rate Over DP
N/A
DSC Off Max Refresh Rate Over HDMI
N/A
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Compatible (Tested)
Compatible (Tested)
G-SYNC
Compatible (Tested)
Compatible (NVIDIA Certified)
VRR Maximum
160 Hz
240 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
VRR Motion Performance
9.7
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
No OD Mode
Variable Overdrive Advertised
No
Avg. CAD
29
Best CAD
17
Worst CAD
38
Refresh Rate Compliance
9.5
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
89%
Compliance @ 120 FPS
92%
Compliance @ 60 FPS
95%
Response Time @ 60Hz
8.6
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Off
No OD Mode
Rise / Fall Time
3.8 ms
0.4 ms
Total Response Time
9.4 ms
0.4 ms
Overshoot Error
0.0%
0 RGB
Worst 3 Rise / Fall Time
5.5 ms
1.4 ms
Worst 3 Total Response Time
16.6 ms
1.4 ms
Worst 3 Overshoot Error
0.0%
0 RGB
CAD @ Max Refresh Rate
9.9
Pursuit Photo At Max Refresh
CAD Heatmap At Max Refresh
OD Transition Max Refresh Rate
OD no
0 to 31
Recommended Overdrive Setting
No OD Mode
Avg. CAD
13
Best 10% CAD
7
Worst 10% CAD
23
Response Time @ Max Refresh Rate
First Response Time
3.4 ms
0.4 ms
Total Response Time
6.2 ms
0.4 ms
Recommended Overdrive Setting
Normal
No OD Mode
Motion Blur Picture
RGB Overshoot
1.3%
0 RGB
Worst 10% RGB Overshoot
9.4%
0 RGB
Worst 10% First Response Time
4.2 ms
1.9 ms
Worst 10% Total Response Time
8.7 ms
1.9 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
Response Time Table
CAD @ 120Hz
9.9
Pursuit Photo 120Hz
CAD Heatmap 120Hz
OD Transition 120Hz
OD no
0 to 31
Recommended Overdrive Setting
No OD Mode
Avg. CAD
13
Best 10% CAD
7
Worst 10% CAD
20
Response Time @ 120Hz
Worst 10% First Response Time
5.5 ms
1.4 ms
RGB Overshoot
0.0%
0 RGB
Total Response Time
7.5 ms
0.4 ms
First Response Time
3.7 ms
0.4 ms
Recommended Overdrive Setting
Off
No OD Mode
Worst 10% Total Response Time
9.5 ms
1.4 ms
Worst 10% RGB Overshoot
0.0%
0 RGB
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
Motion Blur Picture
Response Time Table
CAD @ 60Hz
9.9
Pursuit Photo 60Hz
CAD Heatmap 60Hz
OD Transition 60Hz
OD no
0 to 31
Recommended Overdrive Setting
No OD Mode
Avg. CAD
13
Best 10% CAD
6
Worst 10% CAD
20
Response Time @ 60Hz
Recommended Overdrive Setting
Off
No OD Mode
First Response Time
3.8 ms
0.4 ms
Total Response Time
9.4 ms
0.4 ms
RGB Overshoot
0.0%
0 RGB
Worst 10% Total Response Time
16.6 ms
1.4 ms
Worst 10% First Response Time
5.5 ms
1.4 ms
Worst 10% RGB Overshoot
0.0%
0 RGB
60Hz First Response Heatmap
60Hz Total Response Heatmap
60Hz RGB Overshoot Heatmap
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
No BFI
No BFI
Maximum Frequency
N/A
N/A
Minimum Frequency
N/A
N/A
Longest Pulse Width Brightness
N/A
N/A
Shortest Pulse Width Brightness
N/A
N/A
Pulse Width Control
No BFI
No BFI
Pulse Phase Control
No BFI
No BFI
Pulse Amplitude Control
No BFI
No BFI
VRR At The Same Time
No BFI
No BFI
VRR Flicker
5.5
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
5.6 RGB
Middle Gray Flicker
0.9 RGB
Light Gray Flicker
1.1 RGB
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
No
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
8.9
8.9
Native Resolution @ Max Hz
3.9 ms
3.1 ms
Native Resolution @ 120Hz
4.8 ms
7.3 ms
Native Resolution @ 60Hz
8.8 ms
15.0 ms
Backlight Strobing (BFI)
N/A
N/A
Resolution
9.0
8.5
Native Resolution
3840 x 2160
3840 x 2160
Aspect Ratio
16:9
16:9
Megapixels
8.3 MP
8.3 MP
Pixel Density
163 PPI
138 PPI
Measured Screen Diagonal
26.9"
Screen Area
310 in²
PS5 Compatibility
10
10
PS5 Compatibility Photo
PS5 Compatibility Table
4k @ 120Hz
Yes
Yes
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
Yes
VRR
Yes
Xbox Series X|S Compatibility
10
8.2
XSX Compatibility Photo
XSX Compatibility Table
4k @ 120Hz
Yes
Yes
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
No
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
Yes
VRR
Yes
Inputs Photos
Inputs 1
Inputs 2
Inputs
Inputs 1
Inputs 2
DisplayPort
1 (DP 1.4)
1 (DP 1.4)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
Mini DisplayPort
No
No
DVI
No
HDMI
2 (HDMI 2.1)
2 (HDMI 2.1)
VGA
No
HDMI 2.1 Bandwidth
48Gbps (FRL 12x4)
48Gbps (FRL 12x4)
Daisy Chaining
No
No
3.5mm Audio Out
1
No
3.5mm Audio In
No
3.5mm Microphone In
No
Ethernet
No
HDR10
Yes
Yes
Dolby Vision
Yes
USB
USB-A Ports
2
3
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
1
1
USB-C Upstream
Yes
No
USB-C Rated Speed
5Gbps (USB 3.2 Gen 1)
5Gbps (USB 3.2 Gen 1)
USB-C Power Delivery
90W
15W
USB-C DisplayPort Alt Mode
Yes
No
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
No
RGB Illumination
Fixed (On/Off)
Controllable
Multiple Input Display
No
PIP + PBP
KVM Switch
Yes
No
Smart OS
No
On-Screen Display (OSD)
OSD Picture
Check Price
27"
Tempest GP27U
SEE PRICE
Amazon.com
32"
Alienware AW3225QF
SEE PRICE
BestBuy.com
27"
Tempest GP27U
SEE PRICE
Walmart.com
32"
Alienware AW3225QF
SEARCH
Amazon.com
27"
Tempest GP27U
SEARCH
B&H
32"
Alienware AW3225QF
SEARCH
B&H
27"
Tempest GP27U
SEARCH
BestBuy.com
32"
Alienware AW3225QF
SEARCH
Walmart.com
Cooler Master Tempest GP27U
Dell Alienware AW3225QF
Comments
Cooler Master Tempest GP27U vs Dell Alienware AW3225QF: Main Discussion
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