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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
Cooler Master Tempest GP27U vs LG 27GR95UM-B
Side-by-Side Comparison
Products
Cooler Master Tempest GP27U
LG 27GR95UM-B
Tested using Methodology v1.2
Updated Dec 18, 2024 03:54 PM
SEE PRICE
Amazon.comTested using Methodology v2.0.1
Updated Mar 31, 2025 01:52 PM
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Amazon.com
Max Refresh Rate160 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
- Tempest GP27U (27")
- 27GR95UM-B (27")
Our Verdict
Cooler Master Tempest GP27U
LG 27GR95UM-B
The Cooler Master Tempest GP27U and the LG 27GR95UM-B are both 4k gaming monitors with similar specs. They each have Mini LED backlighting, and even though the Cooler Master has fewer dimming zones, its local dimming feature is better with less blooming and black crush. On top of that, the Cooler Master is better for productivity thanks to its KVM switch and USB-C port.
Check Price
27"
Tempest GP27U
SEE PRICE
Amazon.com27"
27GR95UM-B
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
7.5
Build Quality Picture
Ergonomics
8.6
7.2
Ergonomics Picture
Back Picture
Height Adjustment
4.3" (11.0 cm)
4.3" (11.0 cm)
Min Height To Top Of Panel
18.0" (45.6 cm)
Tilt Range
-20° to 5°
-15° to 2.5°
Rotate Portrait/Landscape
Yes, Both Ways
Yes, Clockwise
Swivel Range
-30° to 30°
No swivel
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
11.6" (29.4 cm)
17.4" (44.3 cm)
Base Depth
10.8" (27.4 cm)
10.2" (26.0 cm)
Thickness (With Display)
6.3" (16.0 cm)
7.7" (19.5 cm)
Weight (With Display)
15.2 lbs (6.9 kg)
17.3 lbs (7.9 kg)
Display
Display Picture
Size
27"
27"
Housing Width
24.3" (61.6 cm)
24.0" (60.9 cm)
Housing Height
14.3" (36.3 cm)
13.9" (35.2 cm)
Thickness (Without Stand)
2.8" (7.0 cm)
2.4" (6.0 cm)
Weight (Without Stand)
11.7 lbs (5.3 kg)
13.2 lbs (6.0 kg)
Borders Size (Bezels)
0.2" (0.5 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
6.4
6.3
Checkerboard Picture
Native Contrast
1,072 : 1
961 : 1
Contrast With Local Dimming
2,209 : 1
2,594 : 1
Local Dimming
7.0
5.0
Local Dimming Video
Local Dimming
Yes
Yes
Backlight
Full-Array
Full-Array
SDR Brightness
8.8
8.5
Real Scene
634 cd/m²
455 cd/m²
Peak 2% Window
577 cd/m²
665 cd/m²
Peak 10% Window
772 cd/m²
806 cd/m²
Peak 25% Window
854 cd/m²
768 cd/m²
Peak 50% Window
758 cd/m²
648 cd/m²
Peak 100% Window
698 cd/m²
476 cd/m²
Sustained 2% Window
573 cd/m²
664 cd/m²
Sustained 10% Window
763 cd/m²
806 cd/m²
Sustained 25% Window
846 cd/m²
767 cd/m²
Sustained 50% Window
756 cd/m²
648 cd/m²
Sustained 100% Window
697 cd/m²
476 cd/m²
Automatic Brightness Limiting (ABL)
0.015
0.028
Minimum Brightness
52 cd/m²
18 cd/m²
HDR Brightness
9.1
8.8
EOTF
VESA DisplayHDR Certification
No Certification
DisplayHDR 1000
Real Scene
1,127 cd/m²
799 cd/m²
Peak 2% Window
846 cd/m²
1,084 cd/m²
Peak 10% Window
1,550 cd/m²
1,377 cd/m²
Peak 25% Window
1,359 cd/m²
1,328 cd/m²
Peak 50% Window
1,274 cd/m²
1,380 cd/m²
Peak 100% Window
1,532 cd/m²
1,408 cd/m²
Sustained 2% Window
834 cd/m²
1,078 cd/m²
Sustained 10% Window
1,497 cd/m²
1,302 cd/m²
Sustained 25% Window
1,344 cd/m²
1,309 cd/m²
Sustained 50% Window
1,267 cd/m²
1,122 cd/m²
Sustained 100% Window
1,368 cd/m²
853 cd/m²
Automatic Brightness Limiting (ABL)
0.029
0.022
Horizontal Viewing Angle
7.0
6.8
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
27°
27°
Color Washout From Right
32°
28°
Horizontal Hue Graph
Color Shift From Left
39°
33°
Color Shift From Right
45°
37°
Horizontal Lightness Graph
Brightness Loss From Left
31°
31°
Brightness Loss From Right
36°
32°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
30°
31°
Gamma Shift From Right
35°
34°
Vertical Viewing Angle
7.5
7.8
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
31°
30°
Color Washout From Above
35°
30°
Vertical Hue Graph
Color Shift From Below
54°
64°
Color Shift From Above
58°
66°
Vertical Lightness Graph
Brightness Loss From Below
33°
33°
Brightness Loss From Above
37°
33°
Black Level Raise From Below
70°
70°
Black Level Raise From Above
70°
70°
Gamma Shift From Below
40°
55°
Gamma Shift From Above
44°
47°
Gray Uniformity
8.0
7.9
50% Uniformity Picture
50% Std. Dev.
2.991%
3.148%
50% DSE
0.142%
0.151%
Black Uniformity
7.0
7.2
Native Black Uniformity Picture
Native Std. Dev.
1.684%
1.497%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
0.471%
0.450%
Color Accuracy (Pre-Calibration)
6.6
7.2
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Standard (sRGB)
sRGB
sRGB Gamut Area xy
95.1%
109.2%
White Balance dE (Avg.)
7.83
4.40
Color Temperature (Avg.)
6,060 K
5,917 K
Gamma (Avg.)
2.28
2.32
Color dE (Avg.)
4.58
3.29
Contrast Setting
70
70
RGB Settings
50-50-50
50-50-50
Gamma Setting
2.2
Default
Brightness Setting
50
27
Measured Brightness
350 cd/m²
136 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.4
9.8
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Standard
Gamer 1
sRGB Gamut Area xy
102.0%
101.0%
White Balance dE (Avg.)
1.18
0.51
Color Temperature (Avg.)
6,491 K
6,478 K
Gamma (Avg.)
2.18
2.19
Color dE (Avg.)
0.77
0.30
Contrast Setting
70
70
RGB Settings
50-48-49
51-48-49
Gamma Setting
2.2
Mode 2
Brightness Setting
4
20
Measured Brightness
104 cd/m²
101 cd/m²
SDR Color Gamut
9.9
9.8
sRGB Color Gamut Picture
sRGB Coverage xy
99.6%
100.0%
sRGB Picture Mode
Standard
Gamer 1
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
99.6%
93.4%
Adobe RGB Picture Mode
Standard
Gamer 1
HDR Color Gamut
9.4
9.4
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
97.4%
98.7%
DCI-P3 Picture Mode
Game
Gamer 2
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
82.5%
74.2%
Rec. 2020 Picture Mode
Game
Gamer 2
HDR Color Volume
8.4
8.6
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
84.7%
89.2%
DCI-P3 Picture Mode
Game
Gamer 2
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
73.2%
42.7%
Rec. 2020 Picture Mode
Game
Gamer 2
Text Clarity
9.0
9.0
ClearType On
ClearType Off
Pixel Type
IPS
IPS
Pixels
Subpixel Layout
RGB
RGB
Reflections
7.3
6.1
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
5.5%
7.9%
Indirect Reflections
3.2%
4.1%
Calculated Direct Reflections
2.4%
3.8%
Gradient
9.6
9.8
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
8.5
7.5
Native Refresh Rate
160 Hz
144 Hz
Max Refresh Rate
160 Hz
160 Hz
Max Refresh Rate Over DP
160 Hz
160 Hz
Max Refresh Rate Over HDMI
144 Hz
160 Hz
Max Refresh Rate Over DP @ 10-bit
160 Hz
160 Hz
Max Refresh Rate Over HDMI @ 10-Bit
144 Hz
160 Hz
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Compatible (Tested)
Yes
G-SYNC
Compatible (Tested)
Compatible (NVIDIA Certified)
VRR Maximum
160 Hz
160 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
VRR Motion Performance
7.5
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
Fast
Variable Overdrive Advertised
No
Avg. CAD
189
Best CAD
176
Worst CAD
224
Refresh Rate Compliance
7.5
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
52%
Compliance @ 120 FPS
61%
Compliance @ 60 FPS
75%
Response Time @ 60Hz
8.6
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Off
Off
Rise / Fall Time
3.8 ms
9.5 ms
Total Response Time
9.4 ms
9.5 ms
Overshoot Error
0.0%
0 RGB
Worst 3 Rise / Fall Time
5.5 ms
15.4 ms
Worst 3 Total Response Time
16.6 ms
15.4 ms
Worst 3 Overshoot Error
0.0%
0 RGB
CAD @ Max Refresh Rate
7.5
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
177
Best 10% CAD
97
Worst 10% CAD
298
Response Time @ Max Refresh Rate
First Response Time
3.4 ms
7.1 ms
Total Response Time
6.2 ms
7.2 ms
Recommended Overdrive Setting
Normal
Fast
Motion Blur Picture
RGB Overshoot
1.3%
0 RGB
Worst 10% RGB Overshoot
9.4%
1 RGB
Worst 10% First Response Time
4.2 ms
13.4 ms
Worst 10% Total Response Time
8.7 ms
13.4 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
Response Time Table
CAD @ 120Hz
7.5
Pursuit Photo 120Hz
CAD Heatmap 120Hz
OD Transition 120Hz
OD fast
0 to 31
Recommended Overdrive Setting
Fast
Avg. CAD
176
Best 10% CAD
96
Worst 10% CAD
290
Response Time @ 120Hz
Worst 10% First Response Time
5.5 ms
11.5 ms
RGB Overshoot
0.0%
2 RGB
Total Response Time
7.5 ms
8.0 ms
First Response Time
3.7 ms
6.3 ms
Recommended Overdrive Setting
Off
Fast
Worst 10% Total Response Time
9.5 ms
12.1 ms
Worst 10% RGB Overshoot
0.0%
8 RGB
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
Motion Blur Picture
Response Time Table
CAD @ 60Hz
7.3
Pursuit Photo 60Hz
CAD Heatmap 60Hz
OD Transition 60Hz
OD fast
0 to 31
Recommended Overdrive Setting
Off
Avg. CAD
198
Best 10% CAD
117
Worst 10% CAD
282
Response Time @ 60Hz
Recommended Overdrive Setting
Off
Off
First Response Time
3.8 ms
9.5 ms
Total Response Time
9.4 ms
9.5 ms
RGB Overshoot
0.0%
0 RGB
Worst 10% Total Response Time
16.6 ms
15.4 ms
Worst 10% First Response Time
5.5 ms
15.4 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
9.5
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
0.4 RGB
Middle Gray Flicker
0.1 RGB
Light Gray Flicker
0.1 RGB
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
8.9
9.0
Native Resolution @ Max Hz
3.9 ms
3.6 ms
Native Resolution @ 120Hz
4.8 ms
4.7 ms
Native Resolution @ 60Hz
8.8 ms
9.1 ms
Backlight Strobing (BFI)
N/A
N/A
Resolution
9.0
8.8
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
9.7
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
48Gbps (FRL 12x4)
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
2
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
0
USB-C Upstream
Yes
No USB-C Ports
USB-C Rated Speed
5Gbps (USB 3.2 Gen 1)
No USB-C Ports
USB-C Power Delivery
90W
No USB-C Ports
USB-C DisplayPort Alt Mode
Yes
No USB-C Ports
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
Yes
RGB Illumination
Fixed (On/Off)
Controllable
Multiple Input Display
No
No
KVM Switch
Yes
No
On-Screen Display (OSD)
OSD Picture
Check Price
27"
Tempest GP27U
SEE PRICE
Amazon.com27"
27GR95UM-B
SEE PRICE
Amazon.com
Cooler Master Tempest GP27U
LG 27GR95UM-B
Comments
Cooler Master Tempest GP27U vs LG 27GR95UM-B: Main Discussion
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