Products
Gigabyte M28U
Gigabyte M27U
Tested using Methodology v1.2
Updated Jul 10, 2025 05:13 PM
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Tested using Methodology v2.0.1
Updated Jul 09, 2025 02:24 PM
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Max Refresh Rate
144 Hz
Size
28"
Pixel Type
IPS
Native Resolution
3840 x 2160
Variable Refresh Rate
Yes
HDR10
Yes
Max Refresh Rate
160 Hz
Size
27"
Pixel Type
IPS
Native Resolution
3840 x 2160
Variable Refresh Rate
Yes
HDR10
Yes
Our Verdict
Gigabyte M28U
Gigabyte M27U
The Gigabyte M27U and the Gigabyte M28U are very similar monitors in terms of features, but the M27U edges out in a few areas. The M27U gets much brighter, making it better for bright rooms and delivering a better HDR experience. The M27U also has an overclock feature to 160Hz for a slightly smoother feel than the 144Hz on the M28U.
Variants
- M28U (28")
- M27U (27")
Check Price
28"
M28U
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27"
M27U
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Amazon.com
28"
M28U
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27"
M27U
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28"
M28U
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27"
M27U
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28"
M28U
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27"
M27U
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Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
8.0
Full Comparison
Design
Style
Design Picture
Curved
No
No
Curve Radius
Not Curved
Not Curved
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.5
7.5
Build Quality Picture
Ergonomics
6.9
7.0
Ergonomics Picture
Back Picture
Height Adjustment
5.1" (13.0 cm)
5.0" (12.8 cm)
Min Height To Top Of Panel
15.0" (38.1 cm)
Tilt Range
-20° to 5°
-20° to 5°
Rotate Portrait/Landscape
No
No
Swivel Range
No swivel
No swivel
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
14.2" (36.0 cm)
14.5" (36.8 cm)
Base Depth
7.1" (18.0 cm)
7.1" (18.0 cm)
Thickness (With Display)
6.0" (15.2 cm)
5.7" (14.6 cm)
Weight (With Display)
15.4 lbs (7.0 kg)
13.9 lbs (6.3 kg)
Display
Display Picture
Size
28"
27"
Housing Width
25.0" (63.6 cm)
24.2" (61.4 cm)
Housing Height
14.6" (37.2 cm)
14.6" (37.1 cm)
Thickness (Without Stand)
2.5" (6.3 cm)
2.1" (5.4 cm)
Weight (Without Stand)
11.7 lbs (5.3 kg)
10.1 lbs (4.6 kg)
Borders Size (Bezels)
0.3" (0.7 cm)
0.2" (0.6 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
Internal
Internal
Picture Quality
Contrast
6.3
6.3
Checkerboard Picture
Native Contrast
1,228 : 1
1,072 : 1
Contrast With Local Dimming
1,224 : 1
1,656 : 1
Local Dimming
2.0
2.0
Local Dimming Video
Local Dimming
Yes
Yes
Backlight
Edge
Edge
SDR Brightness
7.2
8.2
Real Scene
262 cd/m²
391 cd/m²
Peak 2% Window
293 cd/m²
411 cd/m²
Peak 10% Window
309 cd/m²
414 cd/m²
Peak 25% Window
309 cd/m²
415 cd/m²
Peak 50% Window
311 cd/m²
415 cd/m²
Peak 100% Window
312 cd/m²
415 cd/m²
Sustained 2% Window
292 cd/m²
411 cd/m²
Sustained 10% Window
308 cd/m²
414 cd/m²
Sustained 25% Window
308 cd/m²
415 cd/m²
Sustained 50% Window
310 cd/m²
415 cd/m²
Sustained 100% Window
312 cd/m²
415 cd/m²
Automatic Brightness Limiting (ABL)
0.004
0.001
Minimum Brightness
34 cd/m²
62 cd/m²
HDR Brightness
7.1
7.8
EOTF
VESA DisplayHDR Certification
DisplayHDR 400 - 1.0/1.1
DisplayHDR 600
Real Scene
447 cd/m²
591 cd/m²
Peak 2% Window
470 cd/m²
643 cd/m²
Peak 10% Window
495 cd/m²
680 cd/m²
Peak 25% Window
496 cd/m²
680 cd/m²
Peak 50% Window
498 cd/m²
684 cd/m²
Peak 100% Window
500 cd/m²
441 cd/m²
Sustained 2% Window
467 cd/m²
640 cd/m²
Sustained 10% Window
492 cd/m²
677 cd/m²
Sustained 25% Window
492 cd/m²
678 cd/m²
Sustained 50% Window
496 cd/m²
682 cd/m²
Sustained 100% Window
497 cd/m²
438 cd/m²
Automatic Brightness Limiting (ABL)
0.004
0.026
Horizontal Viewing Angle
7.6
7.1
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
38°
31°
Color Washout From Right
39°
33°
Horizontal Hue Graph
Color Shift From Left
47°
35°
Color Shift From Right
50°
42°
Horizontal Lightness Graph
Brightness Loss From Left
42°
38°
Brightness Loss From Right
44°
40°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
35°
30°
Gamma Shift From Right
37°
34°
Vertical Viewing Angle
7.9
7.7
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
31°
30°
Color Washout From Above
36°
31°
Vertical Hue Graph
Color Shift From Below
54°
40°
Color Shift From Above
64°
47°
Vertical Lightness Graph
Brightness Loss From Below
34°
33°
Brightness Loss From Above
39°
34°
Black Level Raise From Below
70°
70°
Black Level Raise From Above
70°
70°
Gamma Shift From Below
48°
60°
Gamma Shift From Above
59°
62°
Gray Uniformity
7.7
7.8
50% Uniformity Picture
50% Std. Dev.
3.607%
4.141%
50% DSE
0.150%
0.141%
Black Uniformity
4.1
5.0
Native Black Uniformity Picture
Native Std. Dev.
3.306%
2.072%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
3.350%
6.513%
Color Accuracy (Pre-Calibration)
9.3
8.6
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
sRGB
sRGB
sRGB Gamut Area xy
101.1%
103.9%
White Balance dE (Avg.)
1.57
2.30
Color Temperature (Avg.)
6,790 K
6,852 K
Gamma (Avg.)
2.18
2.32
Color dE (Avg.)
1.07
2.19
Contrast Setting
N/A
N/A
RGB Settings
Default
Default
Gamma Setting
Default
Default
Brightness Setting
44
60
Measured Brightness
155 cd/m²
184 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.8
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom 1
Custom 1
sRGB Gamut Area xy
99.7%
98.7%
White Balance dE (Avg.)
0.49
0.57
Color Temperature (Avg.)
6,493 K
6,433 K
Gamma (Avg.)
2.18
2.18
Color dE (Avg.)
0.34
0.45
Contrast Setting
50
50
RGB Settings
100-97-98
97-98-98
Gamma Setting
2.2
2.2
Brightness Setting
22
12
Measured Brightness
100 cd/m²
102 cd/m²
SDR Color Gamut
9.4
9.5
sRGB Color Gamut Picture
sRGB Coverage xy
99.7%
99.3%
sRGB Picture Mode
Standard
Custom 1
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
83.6%
88.3%
Adobe RGB Picture Mode
Standard
Custom 1
HDR Color Gamut
7.8
8.4
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
89.0%
92.4%
DCI-P3 Picture Mode
HDR Mode
HDR Mode
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
65.0%
68.3%
Rec. 2020 Picture Mode
HDR Mode
HDR Mode
HDR Color Volume
7.0
7.9
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
71.2%
59.7%
DCI-P3 Picture Mode
HDR Mode
HDR Mode
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
63.2%
35.1%
Rec. 2020 Picture Mode
HDR Mode
HDR Mode
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%
5.6%
Indirect Reflections
3.0%
3.0%
Calculated Direct Reflections
2.2%
2.5%
Gradient
9.8
9.8
Gradient Picture
Color Depth
10 Bit
10 Bit
SDR Color Volume
9.8
sRGB Color Volume ITP Picture
sRGB In ICtCp
99.6%
sRGB Picture Mode
Standard
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
92.4%
Adobe RGB Picture Mode
Standard
Motion
Refresh Rate
8.3
7.5
Native Refresh Rate
144 Hz
150 Hz
Max Refresh Rate
144 Hz
160 Hz
Max Refresh Rate Over DP
144 Hz
160 Hz
Max Refresh Rate Over HDMI
144 Hz
150 Hz
Max Refresh Rate Over DP @ 10-bit
144 Hz
160 Hz
Max Refresh Rate Over HDMI @ 10-Bit
144 Hz
150 Hz
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Yes
Yes
G-SYNC
Compatible (Tested)
Compatible (Tested)
VRR Maximum
144 Hz
160 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
VRR Motion Performance
7.8
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
Picture Quality
Variable Overdrive Advertised
Yes
Avg. CAD
167
Best CAD
154
Worst CAD
200
Refresh Rate Compliance
7.6
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
51%
Compliance @ 120 FPS
61%
Compliance @ 60 FPS
78%
Response Time @ 60Hz
7.8
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Picture Quality
Off
Rise / Fall Time
2.5 ms
9.0 ms
Total Response Time
14.4 ms
9.0 ms
Overshoot Error
9.1%
0 RGB
Worst 3 Rise / Fall Time
3.0 ms
15.5 ms
Worst 3 Total Response Time
22.8 ms
15.5 ms
Worst 3 Overshoot Error
30.3%
0 RGB
CAD @ Max Refresh Rate
7.9
Pursuit Photo At Max Refresh
CAD Heatmap At Max Refresh
OD Transition Max Refresh Rate
OD balance
0 to 31
Recommended Overdrive Setting
Balance
Avg. CAD
144
Best 10% CAD
80
Worst 10% CAD
245
Response Time @ Max Refresh Rate
First Response Time
2.5 ms
4.4 ms
Total Response Time
7.7 ms
7.0 ms
Recommended Overdrive Setting
Picture Quality
Balance
Motion Blur Picture
RGB Overshoot
6.9%
4 RGB
Worst 10% RGB Overshoot
21.8%
9 RGB
Worst 10% First Response Time
3.0 ms
8.2 ms
Worst 10% Total Response Time
11.7 ms
9.5 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 balance
0 to 31
Recommended Overdrive Setting
Picture Quality
Avg. CAD
156
Best 10% CAD
82
Worst 10% CAD
264
Response Time @ 120Hz
Worst 10% First Response Time
3.1 ms
8.5 ms
RGB Overshoot
7.9%
1 RGB
Total Response Time
8.7 ms
6.9 ms
First Response Time
2.5 ms
5.4 ms
Recommended Overdrive Setting
Picture Quality
Picture Quality
Worst 10% Total Response Time
13.5 ms
10.1 ms
Worst 10% RGB Overshoot
25.3%
6 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 balance
0 to 31
Recommended Overdrive Setting
Off
Avg. CAD
194
Best 10% CAD
98
Worst 10% CAD
312
Response Time @ 60Hz
Recommended Overdrive Setting
Picture Quality
Off
First Response Time
2.5 ms
9.0 ms
Total Response Time
14.4 ms
9.0 ms
RGB Overshoot
9.1%
0 RGB
Worst 10% Total Response Time
22.8 ms
15.5 ms
Worst 10% First Response Time
3.0 ms
15.5 ms
Worst 10% RGB Overshoot
30.3%
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)
Yes
Yes
Maximum Frequency
144 Hz
160 Hz
Minimum Frequency
60 Hz
60 Hz
Longest Pulse Width Brightness
153 cd/m²
243 cd/m²
Shortest Pulse Width Brightness
153 cd/m²
243 cd/m²
Pulse Width Control
No
No
Pulse Phase Control
No
No
Pulse Amplitude Control
No
No
VRR At The Same Time
Yes
Yes
VRR Flicker
9.4
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
0.3 RGB
Middle Gray Flicker
0.7 RGB
Light Gray Flicker
0.7 RGB
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
8.8
8.9
Native Resolution @ Max Hz
4.6 ms
3.7 ms
Native Resolution @ 120Hz
4.9 ms
4.8 ms
Native Resolution @ 60Hz
13.1 ms
8.7 ms
Backlight Strobing (BFI)
4.6 ms
7.5 ms
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
160 PPI
163 PPI
Measured Screen Diagonal
27.9"
Screen Area
329 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
24Gbps (FRL 6x4)
24Gbps (FRL 6x4)
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
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
Yes
USB-C Rated Speed
5Gbps (USB 3.2 Gen 1)
5Gbps (USB 3.2 Gen 1)
USB-C Power Delivery
15W
15W
USB-C DisplayPort Alt Mode
Yes
Yes
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
HDR10
Yes
Yes
Speakers
Yes
Yes
RGB Illumination
No
No
Multiple Input Display
PIP + PBP
PIP + PBP
KVM Switch
Yes
Yes
On-Screen Display (OSD)
OSD Picture
Check Price
28"
M28U
SEE PRICE
Amazon.com
27"
M27U
SEE PRICE
Amazon.com
28"
M28U
SEE PRICE
BestBuy.com
27"
M27U
SEE PRICE
Walmart.com
28"
M28U
SEE PRICE
Walmart.com
27"
M27U
SEARCH
B&H
28"
M28U
SEARCH
B&H
27"
M27U
SEARCH
BestBuy.com
Gigabyte M28U
Gigabyte M27U
Comments
Gigabyte M28U vs Gigabyte M27U: Main Discussion
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