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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
Sony INZONE M9 vs Cooler Master Tempest GP27U
Side-by-Side Comparison
Products
Sony INZONE M9
Cooler Master Tempest GP27U
Tested using Methodology v2.0.1
Updated Feb 19, 2025 07:56 PM
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Amazon.comTested using Methodology v1.2
Updated May 07, 2025 01:19 PM
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Amazon.com
Max Refresh Rate144 Hz
Size27"
Pixel TypeIPS
Native Resolution3840 x 2160
Variable Refresh RateYes
HDR10Yes
Max Refresh Rate160 Hz
Size27"
Pixel TypeIPS
Native Resolution3840 x 2160
Variable Refresh RateYes
HDR10Yes
Variants
- INZONE M9 (27")
- Tempest GP27U (27")
Our Verdict
Sony INZONE M9
Cooler Master Tempest GP27U
The Cooler Master Tempest GP27U is better overall than the Sony INZONE M9. Although they each have full-array local dimming features, the Cooler Master uses Mini LED backlights to produce deeper blacks, and it also gets much brighter in HDR for brighter highlights. The Cooler Master also has better motion handling and better ergonomics that make it easier to adjust.
Check Price
27"
INZONE M9
SEE PRICE
Amazon.com27"
Tempest GP27U
SEE PRICE
Amazon.com27"
INZONE M9
SEE PRICE
Amazon.com27"
Tempest GP27U
SEE PRICE
Amazon.com27"
INZONE M9
SEE PRICE
Amazon.com27"
INZONE M9
SEE PRICE
Amazon.comMain Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
8.4
Full Comparison
Design
Style
Design Picture
Curved
No
No
Curve Radius
Not Curved
Not Curved
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.0
7.0
Build Quality Picture
Ergonomics
5.6
8.6
Ergonomics Picture
Back Picture
Height Adjustment
2.8" (7.0 cm)
4.3" (11.0 cm)
Min Height To Top Of Panel
15.8" (40.2 cm)
Tilt Range
-20° to 0°
-20° to 5°
Rotate Portrait/Landscape
No
Yes, Both Ways
Swivel Range
No swivel
-30° to 30°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
17.9" (45.5 cm)
11.6" (29.4 cm)
Base Depth
9.6" (24.4 cm)
10.8" (27.4 cm)
Thickness (With Display)
9.7" (24.7 cm)
6.3" (16.0 cm)
Weight (With Display)
14.3 lbs (6.5 kg)
15.2 lbs (6.9 kg)
Display
Display Picture
Size
27"
27"
Housing Width
24.2" (61.4 cm)
24.3" (61.6 cm)
Housing Height
14.3" (36.3 cm)
14.3" (36.3 cm)
Thickness (Without Stand)
2.9" (7.3 cm)
2.8" (7.0 cm)
Weight (Without Stand)
8.6 lbs (3.9 kg)
11.7 lbs (5.3 kg)
Borders Size (Bezels)
0.3" (0.9 cm)
0.2" (0.5 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
External Brick
External Brick
Picture Quality
Contrast
6.2
6.4
Checkerboard Picture
Native Contrast
1,046 : 1
1,072 : 1
Contrast With Local Dimming
1,198 : 1
2,209 : 1
Local Dimming
6.5
6.0
Local Dimming Video
Local Dimming
Yes
Yes
Backlight
Full-Array
Full-Array
SDR Brightness
8.3
8.8
Real Scene
431 cd/m²
634 cd/m²
Peak 2% Window
421 cd/m²
577 cd/m²
Peak 10% Window
432 cd/m²
772 cd/m²
Peak 25% Window
432 cd/m²
854 cd/m²
Peak 50% Window
432 cd/m²
758 cd/m²
Peak 100% Window
432 cd/m²
698 cd/m²
Sustained 2% Window
420 cd/m²
573 cd/m²
Sustained 10% Window
432 cd/m²
763 cd/m²
Sustained 25% Window
432 cd/m²
846 cd/m²
Sustained 50% Window
432 cd/m²
756 cd/m²
Sustained 100% Window
432 cd/m²
697 cd/m²
Automatic Brightness Limiting (ABL)
0.002
0.015
Minimum Brightness
10 cd/m²
52 cd/m²
HDR Brightness
8.1
9.1
EOTF
VESA DisplayHDR Certification
DisplayHDR 600
No Certification
Real Scene
645 cd/m²
1,127 cd/m²
Peak 2% Window
483 cd/m²
846 cd/m²
Peak 10% Window
695 cd/m²
1,550 cd/m²
Peak 25% Window
802 cd/m²
1,359 cd/m²
Peak 50% Window
838 cd/m²
1,274 cd/m²
Peak 100% Window
865 cd/m²
1,532 cd/m²
Sustained 2% Window
483 cd/m²
834 cd/m²
Sustained 10% Window
694 cd/m²
1,497 cd/m²
Sustained 25% Window
800 cd/m²
1,344 cd/m²
Sustained 50% Window
838 cd/m²
1,267 cd/m²
Sustained 100% Window
864 cd/m²
1,368 cd/m²
Automatic Brightness Limiting (ABL)
0.032
0.029
Horizontal Viewing Angle
6.8
7.0
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
29°
27°
Color Washout From Right
28°
32°
Horizontal Hue Graph
Color Shift From Left
33°
39°
Color Shift From Right
40°
45°
Horizontal Lightness Graph
Brightness Loss From Left
33°
31°
Brightness Loss From Right
34°
36°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
31°
30°
Gamma Shift From Right
31°
35°
Vertical Viewing Angle
7.2
7.5
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
32°
31°
Color Washout From Above
28°
35°
Vertical Hue Graph
Color Shift From Below
37°
54°
Color Shift From Above
41°
58°
Vertical Lightness Graph
Brightness Loss From Below
34°
33°
Brightness Loss From Above
32°
37°
Black Level Raise From Below
70°
70°
Black Level Raise From Above
70°
70°
Gamma Shift From Below
43°
40°
Gamma Shift From Above
43°
44°
Gray Uniformity
7.9
8.0
50% Uniformity Picture
50% Std. Dev.
3.650%
2.991%
50% DSE
0.138%
0.142%
Black Uniformity
6.2
7.0
Native Black Uniformity Picture
Native Std. Dev.
1.891%
1.684%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
1.761%
0.471%
Color Accuracy (Pre-Calibration)
6.6
6.6
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Game 1
Standard (sRGB)
sRGB Gamut Area xy
129.2%
95.1%
White Balance dE (Avg.)
1.35
7.83
Color Temperature (Avg.)
6,733 K
6,060 K
Gamma (Avg.)
2.22
2.28
Color dE (Avg.)
3.92
4.58
Contrast Setting
75
70
RGB Settings
100-100-100
50-50-50
Gamma Setting
2.2
2.2
Brightness Setting
60
50
Measured Brightness
252 cd/m²
350 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.6
9.4
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Game 1
Standard
sRGB Gamut Area xy
100.7%
102.0%
White Balance dE (Avg.)
0.88
1.18
Color Temperature (Avg.)
6,447 K
6,491 K
Gamma (Avg.)
2.19
2.18
Color dE (Avg.)
0.45
0.77
Contrast Setting
75
70
RGB Settings
100-95-92
50-48-49
Gamma Setting
2.2
2.2
Brightness Setting
22
4
Measured Brightness
101 cd/m²
104 cd/m²
SDR Color Gamut
9.5
9.9
sRGB Color Gamut Picture
sRGB Coverage xy
100.0%
99.6%
sRGB Picture Mode
Game 1
Standard
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
86.5%
99.6%
Adobe RGB Picture Mode
Game 1
Standard
HDR Color Gamut
8.4
9.4
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
92.7%
97.4%
DCI-P3 Picture Mode
Game 1
Game
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
67.7%
82.5%
Rec. 2020 Picture Mode
Game 1
Game
HDR Color Volume
7.7
8.4
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
67.6%
84.7%
DCI-P3 Picture Mode
Game 1
Game
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
32.4%
73.2%
Rec. 2020 Picture Mode
Game 1
Game
Text Clarity
9.0
9.0
ClearType On
ClearType Off
Pixel Type
IPS
IPS
Pixels
Subpixel Layout
RGB
RGB
Reflections
7.5
7.3
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
5.2%
5.5%
Indirect Reflections
3.0%
3.2%
Calculated Direct Reflections
2.2%
2.4%
Gradient
9.3
9.6
Gradient Picture
Color Depth
10 Bit
10 Bit
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
Motion
Refresh Rate
7.4
8.5
Native Refresh Rate
144 Hz
160 Hz
Max Refresh Rate
144 Hz
160 Hz
Max Refresh Rate Over DP
144 Hz
160 Hz
Max Refresh Rate Over HDMI
120 Hz
144 Hz
Max Refresh Rate Over DP @ 10-bit
144 Hz
160 Hz
Max Refresh Rate Over HDMI @ 10-Bit
120 Hz
144 Hz
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Compatible (Tested)
Compatible (Tested)
G-SYNC
Compatible (NVIDIA Certified)
Compatible (Tested)
VRR Maximum
144 Hz
160 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
VRR Motion Performance
7.6
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
Fast
Variable Overdrive Advertised
No
Avg. CAD
177
Best CAD
151
Worst CAD
221
Refresh Rate Compliance
7.6
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
58%
Compliance @ 120 FPS
62%
Compliance @ 60 FPS
74%
Response Time @ 60Hz
8.6
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Standard
Off
Rise / Fall Time
8.6 ms
3.8 ms
Total Response Time
8.6 ms
9.4 ms
Overshoot Error
0 RGB
0.0%
Worst 3 Rise / Fall Time
13.3 ms
5.5 ms
Worst 3 Total Response Time
13.3 ms
16.6 ms
Worst 3 Overshoot Error
0 RGB
0.0%
CAD @ Max Refresh Rate
7.8
Pursuit Photo At Max Refresh
CAD Heatmap At Max Refresh
OD Transition Max Refresh Rate
OD fast
0 to 31
Recommended Overdrive Setting
Fast
Avg. CAD
151
Best 10% CAD
84
Worst 10% CAD
253
Response Time @ Max Refresh Rate
First Response Time
5.1 ms
3.4 ms
Total Response Time
6.8 ms
6.2 ms
Recommended Overdrive Setting
Fast
Normal
Motion Blur Picture
RGB Overshoot
3 RGB
1.3%
Worst 10% RGB Overshoot
14 RGB
9.4%
Worst 10% First Response Time
9.4 ms
4.2 ms
Worst 10% Total Response Time
10.7 ms
8.7 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
Response Time Table
CAD @ 120Hz
7.8
Pursuit Photo 120Hz
CAD Heatmap 120Hz
OD Transition 120Hz
OD fast
0 to 31
Recommended Overdrive Setting
Fast
Avg. CAD
156
Best 10% CAD
83
Worst 10% CAD
258
Response Time @ 120Hz
Worst 10% First Response Time
8.2 ms
5.5 ms
RGB Overshoot
5 RGB
0.0%
Total Response Time
8.1 ms
7.5 ms
First Response Time
4.9 ms
3.7 ms
Recommended Overdrive Setting
Fast
Off
Worst 10% Total Response Time
12.7 ms
9.5 ms
Worst 10% RGB Overshoot
18 RGB
0.0%
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
Motion Blur Picture
Response Time Table
CAD @ 60Hz
7.4
Pursuit Photo 60Hz
CAD Heatmap 60Hz
OD Transition 60Hz
OD fast
0 to 31
Recommended Overdrive Setting
Standard
Avg. CAD
187
Best 10% CAD
102
Worst 10% CAD
286
Response Time @ 60Hz
Recommended Overdrive Setting
Standard
Off
First Response Time
8.6 ms
3.8 ms
Total Response Time
8.6 ms
9.4 ms
RGB Overshoot
0 RGB
0.0%
Worst 10% Total Response Time
13.3 ms
16.6 ms
Worst 10% First Response Time
13.3 ms
5.5 ms
Worst 10% RGB Overshoot
0 RGB
0.0%
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
9.2
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
0.6 RGB
Middle Gray Flicker
1.0 RGB
Light Gray Flicker
0.8 RGB
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
8.9
8.9
Native Resolution @ Max Hz
4.2 ms
3.9 ms
Native Resolution @ 120Hz
4.8 ms
4.8 ms
Native Resolution @ 60Hz
8.9 ms
8.8 ms
Backlight Strobing (BFI)
N/A
N/A
Resolution
8.8
9.0
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
163 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
10
XSX Compatibility Photo
XSX 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
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.4)
1 (DP 1.4)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.1)
2 (HDMI 2.1)
HDMI 2.1 Bandwidth
40Gbps (FRL 10x4)
48Gbps (FRL 12x4)
DVI
No
No
VGA
No
No
Daisy Chaining
No
No
3.5mm Audio Out
1
1
HDR10
Yes
Yes
3.5mm Audio In
No
No
3.5mm Microphone In
No
No
USB
USB-A Ports
3
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
1
1
USB-C Upstream
Yes
Yes
USB-C Rated Speed
5Gbps (USB 3.2 Gen 1)
5Gbps (USB 3.2 Gen 1)
USB-C Power Delivery
15W
90W
USB-C DisplayPort Alt Mode
Yes
Yes
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
Yes
RGB Illumination
Presets
Fixed (On/Off)
Multiple Input Display
No
No
KVM Switch
Yes
Yes
On-Screen Display (OSD)
OSD Picture
Check Price
27"
INZONE M9
SEE PRICE
Amazon.com27"
Tempest GP27U
SEE PRICE
Amazon.com27"
INZONE M9
SEE PRICE
Amazon.com27"
Tempest GP27U
SEE PRICE
Amazon.com27"
INZONE M9
SEE PRICE
Amazon.com27"
INZONE M9
SEE PRICE
Amazon.com
Sony INZONE M9
Cooler Master Tempest GP27U
Comments
Sony INZONE M9 vs Cooler Master Tempest GP27U: Main Discussion
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