27" Cooler Master Tempest GP27U
vs
27" Sony INZONE M9

For the extremely fast frame rates, the Cooler Tempest GP27U has better maximum refresh rate of 160 Hz that allows smoother gameplay. For the average response rate, the Cooler Tempest GP27U scores 6.2 ms, which is faster than the Sony M9 . Cooler Tempest GP27U has lower total input lag than Sony M9 . The brightness of Sony M9 is better than Cooler Tempest GP27U by 97 %.

27" Cooler Master Tempest GP27U

Cooler Tempest GP27U has a total input lag of 9.7 ms, which is excellent among the competition. The Cooler Tempest GP27U is a relatively new monitor. To compensate for graphically demanding games, the Cooler Tempest GP27U has a very good low end adaptive refresh rate of 20 Hz that can adapt to more lower frame rate drops. For the extremely fast frame rates, the Cooler Tempest GP27U has a maximum refresh rate of 160 Hz that allows smoother gameplay. The Cooler Tempest GP27U has the Display Port and this is essential for NVIDIA cards to work with AMD FreeSync. The monitor has a VESA mount. In terms of pixel density, the Cooler Tempest GP27U has an excellent density of 163 pixels-per-inch, resulting in sharper text and picture quality. For the average response rate, the Cooler Tempest GP27U scores 6.2 ms, which ensures effective synchronization with the high refresh rate. The monitor panel has good viewing angles and offers better contrast and colors than TN panels. For graphics color quality, the Cooler Tempest GP27U has an excellent color depth of 10 -bit, resulting in smoother gradients and more accurate colors. Without the AMD FreeSync support, this monitor is not compatible with AMD graphics cards. The minimum response rate of Cooler Tempest GP27U is 3.4 ms, which is can cause ghosting effects. The brightness of Cooler Tempest GP27U is lower than other monitors. The monitor has an unimpressive contrast ratio of 1072 : 1.

27" Sony INZONE M9

The Sony M9 has the Display Port and this is essential for NVIDIA cards to work with AMD FreeSync. Sony M9 has a total input lag of 12.9 ms, which is excellent among the competition. For graphics color quality, the Sony M9 has an excellent color depth of 10 -bit, resulting in smoother gradients and more accurate colors. For the extremely fast frame rates, the Sony M9 has a maximum refresh rate of 144 Hz that allows smoother gameplay. To compensate for graphically demanding games, the Sony M9 has a very good low end adaptive refresh rate of 20 Hz that can adapt to more lower frame rate drops. The monitor panel has good viewing angles and offers better contrast and colors than TN panels. The brightness of Sony M9 is significantly better than other monitors. In terms of pixel density, the Sony M9 has an excellent density of 164 pixels-per-inch, resulting in sharper text and picture quality. The monitor has a VESA mount. The Sony M9 is a relatively new monitor. Without the AMD FreeSync support, this monitor is not compatible with AMD graphics cards. The monitor has an unimpressive contrast ratio of 1046 : 1. The minimum response rate of Sony M9 is 3.3 ms, which is can cause ghosting effects. For the average response rate, the Sony M9 scores 8.4 ms, which can cause motion blurring due to ineffective synchronization with the high refresh rate.

Design

	27" Cooler Master Tempest GP27U	27" Sony INZONE M9
Base Depth	10.8" (27.4 cm)	9.6" (24.4 cm)
Base Width	11.6" (29.4 cm)	17.9" (45.5 cm)
Borders Size (Bezels)	0.2" (0.5 cm)	0.3" (0.9 cm)
Curve Radius	Not Curved	Not Curved
Curved	No	No
Height Adjustment	4.3" (11.0 cm)	2.8" (7.0 cm)
Housing Height	14.3" (36.3 cm)	14.3" (36.3 cm)
Housing Width	24.3" (61.6 cm)	24.2" (61.4 cm)
Power Supply	External Brick	External Brick
Rotate Portrait/Landscape	Yes, Both Ways	No
Size	27"	27"
Swivel Range	-30° to 30°	No swivel
Thickness (With Display)	6.3" (16.0 cm)	9.7" (24.7 cm)
Thickness (Without Stand)	2.8" (7.0 cm)	2.9" (7.3 cm)
Tilt Range	-20° to 5°	-20° to 0°
Wall Mount	VESA 100x100	VESA 100x100
Weight (With Display)	15.2 lbs (6.9 kg)	14.3 lbs (6.5 kg)
Weight (Without Stand)	11.7 lbs (5.3 kg)	8.6 lbs (3.9 kg)

Features

	27" Cooler Master Tempest GP27U	27" Sony INZONE M9
KVM Switch	Yes	No
Multiple Input Display	No	No
RGB Illumination	Fixed (On/Off)	Presets
Speakers	Yes	Yes

Inputs

	27" Cooler Master Tempest GP27U	27" Sony INZONE M9
1080p @ 60Hz	Yes	Yes
1080p @ 120Hz	Yes	Yes
1080p @ 60Hz	Yes	Yes
1440p @ 120Hz	Yes	Yes
1440p @ 60Hz	Yes	Yes
3.5mm Audio In	No	No
3.5mm Audio Out	1	1
3.5mm Microphone In	No	No
4k @ 120Hz	Yes	Yes
4k @ 60Hz	Yes	Yes
Aspect Ratio	16:9	16:9
Backlight Strobing (BFI)	N/A	N/A
DVI	No	No
Daisy Chaining	No	No
DisplayPort	1 (DP 1.4)	1 (DP 1.4)
HDMI	2 (HDMI 2.1)	2 (HDMI 2.1)
HDMI 2.1 Rated Speed	48Gbps (FRL 12x4)	40Gbps (FRL 10x4)
HDR	Yes	Yes
HDR10	Yes	Yes
Measured Screen Diagonal	26.9"	27.0"
Megapixels	8.3 MP	8.3 MP
Mini DisplayPort	No	No
Native Resolution	3840 x 2160	3840 x 2160
Native Resolution @ 120Hz	4.8 ms	4.8 ms
Native Resolution @ 60Hz	8.8 ms	8.9 ms
Native Resolution @ Max Hz	3.9 ms	4.2 ms
Pixel Density	163 PPI	164 PPI
Screen Area	310 in²	310 in²
Thunderbolt	No	No
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 DisplayPort Alt Mode	Yes	Yes
USB-C Ports	1	1
USB-C Power Delivery	90W	15W
USB-C Rated Speed	5Gbps (USB 3.2 Gen 1)	5Gbps (USB 3.2 Gen 1)
USB-C Upstream	Yes	Yes
VGA	No	No
VRR	Yes	Yes

Motion

	27" Cooler Master Tempest GP27U	27" Sony INZONE M9
Backlight Strobing (BFI)	No BFI	No BFI
Flicker-Free	Yes	Yes
FreeSync	Compatible (Tested)	Compatible (Tested)
G-SYNC	Compatible (Tested)	Compatible (NVIDIA Certified)
Longest Pulse Width Brightness	N/A	N/A
Max Refresh Rate	160 Hz	144 Hz
Max Refresh Rate Over DP	160 Hz	144 Hz
Max Refresh Rate Over DP @ 10-bit	160 Hz	144 Hz
Max Refresh Rate Over HDMI	144 Hz	120 Hz
Max Refresh Rate Over HDMI @ 10-Bit	144 Hz	120 Hz
Maximum Frequency	N/A	N/A
Minimum Frequency	N/A	N/A
Native Refresh Rate	160 Hz	144 Hz
Overshoot Error	1.3%	6.2%
PWM Dimming Frequency	0 Hz	0 Hz
Pulse Amplitude Control	No BFI	No BFI
Pulse Phase Control	No BFI	No BFI
Pulse Width Control	No BFI	No BFI
Recommended Overdrive Setting	Normal	Fast
Rise / Fall Time	3.4 ms	3.3 ms
Shortest Pulse Width Brightness	N/A	N/A
Total Response Time	6.2 ms	8.4 ms
VRR At The Same Time	No BFI	No BFI
VRR Maximum	160 Hz	144 Hz
VRR Minimum	< 20 Hz	< 20 Hz
VRR Supported Connectors	DisplayPort, HDMI	DisplayPort, HDMI
Variable Refresh Rate	Yes	Yes
Worst 3 Overshoot Error	9.4%	27.3%
Worst 3 Rise / Fall Time	4.2 ms	3.9 ms
Worst 3 Total Response Time	8.7 ms	13.7 ms

Picture Quality

	27" Cooler Master Tempest GP27U	27" Sony INZONE M9
50% DSE	0.142%	0.138%
50% Std. Dev.	2.991%	3.650%
ABL	0.015	0.002
Adobe RGB Coverage xy	99.6%	86.5%
Adobe RGB In ICtCp	98.8%	90.4%
Adobe RGB Picture Mode	Standard	Game 1
Backlight	Full-Array	Full-Array
Black Level Raise From Above	70°	70°
Black Level Raise From Below	70°	70°
Black Level Raise From Left	70°	70°
Black Level Raise From Right	70°	70°
Brightness Locked	No	No
Brightness Loss From Above	37°	32°
Brightness Loss From Below	33°	34°
Brightness Loss From Left	31°	33°
Brightness Loss From Right	36°	34°
Brightness Setting	50	60
Calculated Direct Reflections	2.4%	2.2%
Color Depth	10 Bit	10 Bit
Color Shift From Above	58°	41°
Color Shift From Below	54°	37°
Color Shift From Left	39°	33°
Color Shift From Right	45°	40°
Color Temperature (Avg.)	6,060 K	6,733 K
Color Washout From Above	35°	28°
Color Washout From Below	31°	32°
Color Washout From Left	27°	29°
Color Washout From Right	32°	28°
Color dE (Avg.)	4.58	3.92
Contrast Setting	70	75
Contrast With Local Dimming	2,209 : 1	1,198 : 1
DCI-P3 Coverage xy	97.3%	92.7%
DCI-P3 In ICtCp	89.2%	84.9%
DCI-P3 Picture Mode	Game	Game 1
Gamma (Avg.)	2.28	2.22
Gamma Setting	2.2	2.2
Gamma Shift From Above	44°	43°
Gamma Shift From Below	40°	43°
Gamma Shift From Left	30°	31°
Gamma Shift From Right	35°	31°
ICC Profile	Download	Download
Indirect Reflections	3.2%	3.0%
Local Dimming	Yes	Yes
Measured Brightness	350 cd/m²	252 cd/m²
Minimum Brightness	69 cd/m²	10 cd/m²
Native Contrast	1,072 : 1	1,046 : 1
Native Std. Dev.	1.684%	1.891%
Peak 10% Window	1,492 cd/m²	432 cd/m²
Peak 100% Window	1,423 cd/m²	432 cd/m²
Peak 2% Window	1,109 cd/m²	421 cd/m²
Peak 25% Window	1,285 cd/m²	432 cd/m²
Peak 50% Window	1,192 cd/m²	432 cd/m²
Picture Mode	Standard (sRGB)	Game 1
Pixel Type	IPS	IPS
RGB Settings	50-50-50	100-100-100
Real Scene	1,064 cd/m²	431 cd/m²
Rec. 2020 Coverage xy	82.7%	67.7%
Rec. 2020 In ICtCp	77.1%	68.8%
Rec. 2020 Picture Mode	Game	Game 1
Screen Finish	Matte	Matte
Std. Dev. w/ L.D.	0.471%	1.761%
Subpixel Layout	RGB	RGB
Sustained 10% Window	1,442 cd/m²	432 cd/m²
Sustained 100% Window	1,273 cd/m²	432 cd/m²
Sustained 2% Window	1,088 cd/m²	420 cd/m²
Sustained 25% Window	1,271 cd/m²	432 cd/m²
Sustained 50% Window	1,188 cd/m²	432 cd/m²
Total Reflections	5.5%	5.2%
VESA DisplayHDR Certification	No Certification	DisplayHDR 600
White Balance dE (Avg.)	7.83	1.35
Wide Color Gamut	Yes	Yes
sRGB Coverage xy	99.6%	100.0%
sRGB Gamut Area xy	95.1%	129.2%
sRGB In ICtCp	99.0%	97.2%
sRGB Picture Mode	Standard	Game 1