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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Accelerated Longevity Test
    3. Build Quality
    4. Ergonomics
    5. Stand
    6. Display
    7. Controls
    8. In The Box
  5. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Brightness
    4. HDR Brightness
    5. Horizontal Viewing Angle
    6. Vertical Viewing Angle
    7. Gray Uniformity
    8. Black Uniformity
    9. Color Accuracy (Pre-Calibration)
    10. Color Accuracy (Post-Calibration)
    11. SDR Color Gamut
    12. HDR Color Gamut
    13. HDR Color Volume
    14. Text Clarity
    15. Reflections
    16. Gradient
    17. SDR Color Volume
  6. Motion
    1. Refresh Rate
    2. Variable Refresh Rate (VRR)
    3. VRR Motion Performance
    4. Refresh Rate Compliance
    5. Response Time @ 60Hz
    6. CAD @ Max Refresh Rate
    7. Response Time @ Max Refresh Rate
    8. CAD @ 120Hz
    9. Response Time @ 120Hz
    10. CAD @ 60Hz
    11. Response Time @ 60Hz
    12. Backlight Strobing (BFI)
    13. VRR Flicker
    14. Image Flicker
  7. Inputs
    1. Input Lag
    2. Resolution
    3. PS5 Compatibility
    4. Xbox Series X|S Compatibility
    5. Inputs Photos
    6. Video And Audio Ports
    7. USB
    8. macOS Compatibility
  8. Features
    1. Additional Features
    2. On-Screen Display (OSD)
  9. Comments

Gigabyte M28U vs MSI Optix G321CU

Side-by-Side Comparison

Products

Gigabyte M28U
MSI Optix G321CU

Tested using Methodology v1.2

Updated Sep 12, 2024 07:06 PM

SEE PRICE
Amazon.com

Tested using Methodology v2.0

Updated Aug 12, 2024 03:19 PM

SEE PRICE
Amazon.com
Gigabyte M28U Picture
MSI Optix G321CU Picture

Variants

  • M28U (28")
  • Optix G321CU (32")

Our Verdict

Gigabyte M28U

MSI Optix G321CU

The Gigabyte M28U is a better gaming monitor than the MSI Optix G321CU. The main advantage of the Gigabyte monitor is its superior motion handling, so there's less smearing with fast-moving objects. The Gigabyte also has wider viewing angles and better ergonomics that make it better for co-op gaming. On the other hand, the MSI has a bigger screen for a more immersive feel. It also has the full 48 Gbps bandwidth of HDMI 2.1, while the Gigabyte is limited to 24 Gbps, so your graphics card doesn't need to use compression for demanding signals.

0

Notice: Two or more of the products selected have been tested with different test methodologies, so some of the results below aren't directly comparable. Learn how our test benches and scoring system work, and read more about the latest changes to our monitors test methodology.

Main Differences for

Threshold 

0.10

Mixed Usage 

8.0
No major differences between these monitors for mixed usage. See full list of tests below.

Full Comparison

Design

Style 
 

Design Picture  

Gigabyte M28U Design Picture
MSI Optix G321CU Design Picture

Curved 
 

No
Yes

Curve Radius 
 

Not Curved
1500R

Show text

Accelerated Longevity Test 
 

Uniformity Pictures  

Longevity Graph  

Build Quality 
 

7.5
7.5

Build Quality Picture  

Gigabyte M28U Build Quality Picture
MSI Optix G321CU Build Quality Picture

Show text

Ergonomics 
 

6.9
2.1

Ergonomics Picture  

Gigabyte M28U Ergonomics Picture
MSI Optix G321CU Ergonomics Picture

Back Picture  

Gigabyte M28U Back Picture
MSI Optix G321CU Back Picture

Height Adjustment 
 

5.1" (13.0 cm)
0.0" (0.0 cm)

Min Height To Top Of Panel 
 

N/A

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

Show text

Stand 
 

Stand Picture  

Gigabyte M28U Stand Picture
MSI Optix G321CU Stand Picture

Thickness Picture  

Gigabyte M28U Thickness Picture
MSI Optix G321CU Thickness Picture

Base Width 
 

14.2" (36.0 cm)
20.3" (51.6 cm)

Base Depth 
 

7.1" (18.0 cm)
10.2" (26.0 cm)

Thickness (With Display) 
 

6.0" (15.2 cm)
7.7" (19.5 cm)

Weight (With Display) 
 

15.4 lbs (7.0 kg)
14.0 lbs (6.3 kg)

Show text

Display 
 

Display Picture  

Gigabyte M28U Display Picture
MSI Optix G321CU Display Picture

Size 
 

28"
32"

Housing Width 
 

25.0" (63.6 cm)
28.2" (71.6 cm)

Housing Height 
 

14.6" (37.2 cm)
16.7" (42.4 cm)

Thickness (Without Stand) 
 

2.5" (6.3 cm)
2.5" (6.3 cm)

Weight (Without Stand) 
 

11.7 lbs (5.3 kg)
10.7 lbs (4.8 kg)

Borders Size (Bezels)  
 

0.3" (0.7 cm)
0.2" (0.6 cm)

Show text

Controls 
 

Controls Picture  

Gigabyte M28U Controls Picture
MSI Optix G321CU Controls Picture

Show text

In The Box 
 

In The Box Picture  

Gigabyte M28U In The Box Picture
MSI Optix G321CU In The Box Picture

Power Supply 
 

Internal
External Brick

Show text

Picture Quality

Contrast 
 

6.3
7.3

Checkerboard Picture  

Gigabyte M28U Checkerboard Picture
MSI Optix G321CU Checkerboard Picture

Native Contrast 
 

1,228 : 1
2,174 : 1

Contrast With Local Dimming 
 

1,224 : 1
N/A

Show text

Local Dimming 
 

2.0
0.0

Local Dimming Video  

Local Dimming 
 

Yes
No

Backlight 
 

Edge
Edge

Show text

SDR Brightness 
 

7.2
7.5

Real Scene 
 

262 cd/m²
297 cd/m²

Peak 2% Window 
 

293 cd/m²
301 cd/m²

Peak 10% Window 
 

309 cd/m²
301 cd/m²

Peak 25% Window 
 

309 cd/m²
302 cd/m²

Peak 50% Window 
 

311 cd/m²
302 cd/m²

Peak 100% Window 
 

312 cd/m²
302 cd/m²

Sustained 2% Window 
 

292 cd/m²
301 cd/m²

Sustained 10% Window 
 

308 cd/m²
301 cd/m²

Sustained 25% Window 
 

308 cd/m²
302 cd/m²

Sustained 50% Window 
 

310 cd/m²
302 cd/m²

Sustained 100% Window 
 

312 cd/m²
302 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.004
0.000

Minimum Brightness 
 

34 cd/m²
53 cd/m²

Show text

HDR Brightness 
 

7.1
6.1

EOTF  

Gigabyte M28U EOTF
MSI Optix G321CU EOTF

VESA DisplayHDR Certification 
 

DisplayHDR 400 - 1.0/1.1
No Certification

Real Scene 
 

447 cd/m²
316 cd/m²

Peak 2% Window 
 

470 cd/m²
314 cd/m²

Peak 10% Window 
 

495 cd/m²
315 cd/m²

Peak 25% Window 
 

496 cd/m²
315 cd/m²

Peak 50% Window 
 

498 cd/m²
316 cd/m²

Peak 100% Window 
 

500 cd/m²
316 cd/m²

Sustained 2% Window 
 

467 cd/m²
314 cd/m²

Sustained 10% Window 
 

492 cd/m²
315 cd/m²

Sustained 25% Window 
 

492 cd/m²
315 cd/m²

Sustained 50% Window 
 

496 cd/m²
315 cd/m²

Sustained 100% Window 
 

497 cd/m²
316 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.004
0.000

Show text

Horizontal Viewing Angle 
 

7.6
6.7

Horizontal Viewing Angle Video  

Horizontal Chroma Graph  

Gigabyte M28U Horizontal Chroma Graph
MSI Optix G321CU Horizontal Chroma Graph

Color Washout From Left 
 

38°
49°

Color Washout From Right 
 

39°
50°

Horizontal Hue Graph  

Gigabyte M28U Horizontal Hue Graph
MSI Optix G321CU Horizontal Hue Graph

Color Shift From Left 
 

47°
70°

Color Shift From Right 
 

50°
70°

Horizontal Lightness Graph  

Gigabyte M28U Horizontal Lightness Graph
MSI Optix G321CU Horizontal Lightness Graph

Brightness Loss From Left 
 

42°
45°

Brightness Loss From Right 
 

44°
45°

Black Level Raise From Left 
 

70°
21°

Black Level Raise From Right 
 

70°
22°

Gamma Shift From Left 
 

35°
11°

Gamma Shift From Right 
 

37°
11°

Show text

Vertical Viewing Angle 
 

7.9
6.2

Vertical Viewing Angle Video  

Vertical Chroma Graph  

Gigabyte M28U Vertical Chroma Graph
MSI Optix G321CU Vertical Chroma Graph

Color Washout From Below 
 

31°
40°

Color Washout From Above 
 

36°
36°

Vertical Hue Graph  

Gigabyte M28U Vertical Hue Graph
MSI Optix G321CU Vertical Hue Graph

Color Shift From Below 
 

54°
70°

Color Shift From Above 
 

64°
69°

Vertical Lightness Graph  

Gigabyte M28U Vertical Lightness Graph
MSI Optix G321CU Vertical Lightness Graph

Brightness Loss From Below 
 

34°
36°

Brightness Loss From Above 
 

39°
33°

Black Level Raise From Below 
 

70°
15°

Black Level Raise From Above 
 

70°
17°

Gamma Shift From Below 
 

48°
11°

Gamma Shift From Above 
 

59°
13°

Show text

Gray Uniformity 
 

7.7
8.3

50% Uniformity Picture  

Gigabyte M28U 50% Uniformity Picture
MSI Optix G321CU 50% Uniformity Picture

50% Std. Dev. 
 

3.607%
2.667%

50% DSE 
 

0.150%
0.131%

Show text

Black Uniformity 
 

4.1
5.8

Native Black Uniformity Picture  

Gigabyte M28U Native Black Uniformity Picture
MSI Optix G321CU Native Black Uniformity Picture

Native Std. Dev. 
 

3.306%
2.128%

Black Uniformity Picture With Local Dimming  

Gigabyte M28U Black Uniformity Picture With Local Dimming
MSI Optix G321CU Black Uniformity Picture With Local Dimming

Std. Dev. w/ L.D. 
 

3.350%
N/A

Show text

Color Accuracy (Pre-Calibration) 
 

9.3
7.7

Pre Calibration Picture  

Gigabyte M28U Pre Calibration Picture
MSI Optix G321CU Pre Calibration Picture

Pre Gamma Curve Picture  

Gigabyte M28U Pre Gamma Curve Picture
MSI Optix G321CU Pre Gamma Curve Picture

Pre Color Picture  

Gigabyte M28U Pre Color Picture
MSI Optix G321CU Pre Color Picture

Picture Mode 
 

sRGB
sRGB

sRGB Gamut Area xy 
 

101.1%
100.3%

White Balance dE (Avg.) 
 

1.57
5.70

Color Temperature (Avg.) 
 

6,790 K
6,037 K

Gamma (Avg.) 
 

2.18
2.29

Color dE (Avg.) 
 

1.07
3.58

Contrast Setting 
 

N/A
N/A

RGB Settings 
 

Default
Default

Gamma Setting 
 

Default
No Gamma Setting

Brightness Setting 
 

44
N/A

Measured Brightness 
 

155 cd/m²
188 cd/m²

Brightness Locked 
 

No
Yes

Show text

Color Accuracy (Post-Calibration) 
 

9.8
9.5

Post Calibration Picture  

Gigabyte M28U Post Calibration Picture
MSI Optix G321CU Post Calibration Picture

Post Gamma Curve Picture  

Gigabyte M28U Post Gamma Curve Picture
MSI Optix G321CU Post Gamma Curve Picture

Post Color Picture  

Gigabyte M28U Post Color Picture
MSI Optix G321CU Post Color Picture

Picture Mode 
 

Custom 1
User

sRGB Gamut Area xy 
 

99.7%
96.8%

White Balance dE (Avg.) 
 

0.49
0.50

Color Temperature (Avg.) 
 

6,493 K
6,471 K

Gamma (Avg.) 
 

2.18
2.19

Color dE (Avg.) 
 

0.34
0.65

Contrast Setting 
 

50
70

RGB Settings 
 

100-97-98
Normal

Gamma Setting 
 

2.2
No Gamma Setting

Brightness Setting 
 

22
15

Measured Brightness 
 

100 cd/m²
100 cd/m²

ICC Profile 
 

Show text

SDR Color Gamut 
 

9.4
9.1

sRGB Color Gamut Picture  

Gigabyte M28U sRGB Color Gamut Picture
MSI Optix G321CU sRGB Color Gamut Picture

sRGB Coverage xy 
 

99.7%
96.9%

sRGB Picture Mode 
 

Standard
User

Adobe RGB Color Gamut Picture  

Gigabyte M28U Adobe RGB Color Gamut Picture
MSI Optix G321CU Adobe RGB Color Gamut Picture

Adobe RGB Coverage xy 
 

83.6%
83.5%

Adobe RGB Picture Mode 
 

Standard
User

Show text

HDR Color Gamut 
 

7.8
7.6

Wide Color Gamut 
 

Yes
Yes

DCI-P3 Color Gamut Picture  

Gigabyte M28U DCI-P3 Color Gamut Picture
MSI Optix G321CU DCI-P3 Color Gamut Picture

DCI-P3 Coverage xy 
 

89.0%
87.3%

DCI-P3 Picture Mode 
 

HDR Mode
User

Rec. 2020 Color Gamut Picture  

Gigabyte M28U Rec. 2020 Color Gamut Picture
MSI Optix G321CU Rec. 2020 Color Gamut Picture

Rec. 2020 Coverage xy 
 

65.0%
63.2%

Rec. 2020 Picture Mode 
 

HDR Mode
User

Show text

HDR Color Volume 
 

7.0
6.7

DCI-P3 Color Volume ITP Picture  

Gigabyte M28U DCI-P3 Color Volume ITP Picture
MSI Optix G321CU DCI-P3 Color Volume ITP Picture

1,000 cd/m² DCI-P3 Coverage ICtCp 
 

71.2%
55.1%

DCI-P3 Picture Mode 
 

HDR Mode
User

Rec. 2020 Color Volume ITP Picture  

Gigabyte M28U Rec. 2020 Color Volume ITP Picture
MSI Optix G321CU Rec. 2020 Color Volume ITP Picture

10,000 cd/m² Rec. 2020 Coverage ICtCp 
 

63.2%
24.1%

Rec. 2020 Picture Mode 
 

HDR Mode
User

Show text

Text Clarity 
 

9.0
9.0

ClearType On  

Gigabyte M28U ClearType On
MSI Optix G321CU ClearType On

ClearType Off  

Gigabyte M28U ClearType Off
MSI Optix G321CU ClearType Off

Pixel Type 
 

IPS
VA

Pixels  

Gigabyte M28U Pixels
MSI Optix G321CU Pixels

Subpixel Layout 
 

RGB
RGB

Show text

Reflections 
 

7.5
7.1

Average Room  

Gigabyte M28U Average Room
MSI Optix G321CU Average Room

Average Room Off Picture  

Gigabyte M28U Average Room Off Picture
MSI Optix G321CU Average Room Off Picture

Bright Room Off Picture  

Gigabyte M28U Bright Room Off Picture
MSI Optix G321CU Bright Room Off Picture

Screen Finish 
 

Matte
Matte

Total Reflections 
 

5.2%
6.3%

Indirect Reflections 
 

3.0%
4.0%

Calculated Direct Reflections 
 

2.2%
2.3%

Show text

Gradient 
 

9.8
9.8

Gradient Picture  

Gigabyte M28U Gradient Picture
MSI Optix G321CU Gradient Picture

Color Depth 
 

10 Bit
10 Bit

Show text

SDR Color Volume 
 

9.8

sRGB Color Volume ITP Picture  

Gigabyte M28U sRGB Color Volume ITP Picture

sRGB In ICtCp 
 

99.6%

sRGB Picture Mode 
 

Standard

Adobe RGB Color Volume ITP Picture  

Gigabyte M28U Adobe RGB Color Volume ITP Picture

Adobe RGB In ICtCp 
 

92.4%

Adobe RGB Picture Mode 
 

Standard

Show text

Motion

Refresh Rate 
 

8.3
7.4

Native Refresh Rate 
 

144 Hz
144 Hz

Max Refresh Rate 
 

144 Hz
144 Hz

Max Refresh Rate Over DP 
 

144 Hz
144 Hz

Max Refresh Rate Over HDMI 
 

144 Hz
144 Hz

Max Refresh Rate Over DP @ 10-bit 
 

144 Hz
144 Hz

Max Refresh Rate Over HDMI @ 10-Bit 
 

144 Hz
144 Hz

Show text

Variable Refresh Rate (VRR) 
 

Variable Refresh Rate 
 

Yes
Yes

FreeSync 
 

Yes
Yes

G-SYNC 
 

Compatible (Tested)
Compatible (Tested)

VRR Maximum 
 

144 Hz
144 Hz

VRR Minimum 
 

< 20 Hz
< 20 Hz

VRR Supported Connectors 
 

DisplayPort, HDMI
DisplayPort, HDMI

Show text

VRR Motion Performance 
 

6.6

Pursuit Photo VRR  

MSI Optix G321CU Pursuit Photo VRR

OD Mode CAD Comparison  

See details on graph tool

Recommended VRR OD Setting 
 

Fast

Variable Overdrive Advertised 
 

No

Avg. CAD 
 

264

Best CAD 
 

248

Worst CAD 
 

284

Show text

Refresh Rate Compliance 
 

7.1

Fast GTG Sequence  

See details on graph tool

VRR Compliance  

See details on graph tool

Compliance @ Max Hz 
 

54%

Compliance @ 120 FPS 
 

57%

Compliance @ 60 FPS 
 

72%

Show text

Response Time @ 60Hz 
 

7.8

Motion Blur Picture  

Gigabyte M28U Motion Blur Picture

Response Time Table  

Gigabyte M28U Response Time Table
MSI Optix G321CU Response Time Table

Recommended Overdrive Setting 
 

Picture Quality
Fastest

Rise / Fall Time 
 

2.5 ms
7.1 ms

Total Response Time 
 

14.4 ms
15.2 ms

Overshoot Error 
 

9.1%
5 RGB

Worst 3 Rise / Fall Time 
 

3.0 ms
16.4 ms

Worst 3 Total Response Time 
 

22.8 ms
23.5 ms

Worst 3 Overshoot Error 
 

30.3%
11 RGB

Show text

CAD @ Max Refresh Rate 
 

6.0

Pursuit Photo At Max Refresh  

Gigabyte M28U Pursuit Photo At Max Refresh
MSI Optix G321CU Pursuit Photo At Max Refresh

CAD Heatmap At Max Refresh  

Gigabyte M28U CAD Heatmap At Max Refresh
MSI Optix G321CU CAD Heatmap At Max Refresh

OD Transition Max Refresh Rate 
 

od-transition-max-refresh-rate-fast-0-31
OD fast
0 to 31

Recommended Overdrive Setting 
 

Fast

Avg. CAD 
 

248

Best 10% CAD 
 

59

Worst 10% CAD 
 

608

Show text

Response Time @ Max Refresh Rate 
 

First Response Time 
 

2.5 ms
10.0 ms

Total Response Time 
 

7.7 ms
11.4 ms

Recommended Overdrive Setting 
 

Picture Quality
Fast

Motion Blur Picture  

Gigabyte M28U Motion Blur Picture
MSI Optix G321CU Motion Blur Picture

RGB Overshoot 
 

6.9%
3 RGB

Worst 10% RGB Overshoot 
 

21.8%
23 RGB

Worst 10% First Response Time 
 

3.0 ms
26.2 ms

Worst 10% Total Response Time 
 

11.7 ms
26.2 ms

Heatmap First Response  

MSI Optix G321CU Heatmap First Response

Heatmap Total Response  

MSI Optix G321CU Heatmap Total Response

Heatmap RGB Overshoot  

MSI Optix G321CU Heatmap RGB Overshoot

Response Time Table  

Gigabyte M28U Response Time Table
MSI Optix G321CU Response Time Table

Show text

CAD @ 120Hz 
 

6.3

Pursuit Photo 120Hz  

Gigabyte M28U Pursuit Photo 120Hz
MSI Optix G321CU Pursuit Photo 120Hz

CAD Heatmap 120Hz  

Gigabyte M28U CAD Heatmap 120Hz
MSI Optix G321CU CAD Heatmap 120Hz

OD Transition 120Hz 
 

od-transition-120-fast-0-31
OD fast
0 to 31

Recommended Overdrive Setting 
 

Fast

Avg. CAD 
 

236

Best 10% CAD 
 

55

Worst 10% CAD 
 

555

Show text

Response Time @ 120Hz 
 

Worst 10% First Response Time 
 

3.1 ms
23.1 ms

RGB Overshoot 
 

7.9%
4 RGB

Total Response Time 
 

8.7 ms
10.9 ms

First Response Time 
 

2.5 ms
8.2 ms

Recommended Overdrive Setting 
 

Picture Quality
Fast

Worst 10% Total Response Time 
 

13.5 ms
23.1 ms

Worst 10% RGB Overshoot 
 

25.3%
27 RGB

120Hz First Response Heatmap  

MSI Optix G321CU 120Hz First Response Heatmap

120Hz Total Response Heatmap  

MSI Optix G321CU 120Hz Total Response Heatmap

120Hz Heatmap RGB Overshoot  

MSI Optix G321CU 120Hz Heatmap RGB Overshoot

Motion Blur Picture  

Gigabyte M28U Motion Blur Picture
MSI Optix G321CU Motion Blur Picture

Response Time Table  

Gigabyte M28U Response Time Table
MSI Optix G321CU Response Time Table

Show text

CAD @ 60Hz 
 

6.3

Pursuit Photo 60Hz  

Gigabyte M28U Pursuit Photo 60Hz
MSI Optix G321CU Pursuit Photo 60Hz

CAD Heatmap 60Hz  

MSI Optix G321CU CAD Heatmap 60Hz

OD Transition 60Hz 
 

od-transition-60-fast-0-31
OD fast
0 to 31

Recommended Overdrive Setting 
 

Fastest

Avg. CAD 
 

253

Best 10% CAD 
 

65

Worst 10% CAD 
 

460

Show text

Response Time @ 60Hz 
 

Recommended Overdrive Setting 
 

Picture Quality
Fastest

First Response Time 
 

2.5 ms
7.1 ms

Total Response Time 
 

14.4 ms
15.2 ms

RGB Overshoot 
 

9.1%
5 RGB

Worst 10% Total Response Time 
 

22.8 ms
23.5 ms

Worst 10% First Response Time 
 

3.0 ms
16.4 ms

Worst 10% RGB Overshoot 
 

30.3%
11 RGB

60Hz First Response Heatmap  

MSI Optix G321CU 60Hz First Response Heatmap

60Hz Total Response Heatmap  

MSI Optix G321CU 60Hz Total Response Heatmap

60Hz RGB Overshoot Heatmap  

MSI Optix G321CU 60Hz RGB Overshoot Heatmap

Show text

Backlight Strobing (BFI) 
 

Backlight Strobing Picture  

Gigabyte M28U Backlight Strobing Picture
MSI Optix G321CU Backlight Strobing Picture

Backlight Strobing Frequency Picture  

Gigabyte M28U Backlight Strobing Frequency Picture
MSI Optix G321CU Backlight Strobing Frequency Picture

Backlight Strobing (BFI) 
 

Yes
Yes

Maximum Frequency 
 

144 Hz
144 Hz

Minimum Frequency 
 

60 Hz
120 Hz

Longest Pulse Width Brightness 
 

153 cd/m²
100 cd/m²

Shortest Pulse Width Brightness 
 

153 cd/m²
100 cd/m²

Pulse Width Control 
 

No
No

Pulse Phase Control 
 

No
No

Pulse Amplitude Control 
 

No
No

VRR At The Same Time 
 

Yes
Yes

Show text

VRR Flicker 
 

7.8

VRR Flicker Video  

VRR Flicker Graph  

MSI Optix G321CU VRR Flicker Graph

Dark Gray Flicker 
 

1.9 RGB

Middle Gray Flicker 
 

1.1 RGB

Light Gray Flicker 
 

1.0 RGB

Show text

Image Flicker 
 

10
10

Backlight Picture  

Gigabyte M28U Backlight Picture
MSI Optix G321CU Backlight Picture

Flicker-Free 
 

Yes
Yes

PWM Dimming Frequency 
 

0 Hz
0 Hz

Show text

Inputs

Input Lag 
 

8.8
8.7

Native Resolution @ Max Hz 
 

4.6 ms
4.9 ms

Native Resolution @ 120Hz 
 

4.9 ms
5.6 ms

Native Resolution @ 60Hz 
 

13.1 ms
11.9 ms

Backlight Strobing (BFI) 
 

4.6 ms
6.2 ms

Show text

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 
 

160 PPI
138 PPI

Measured Screen Diagonal 
 

27.9"

Screen Area 
 

329 in²

Show text

PS5 Compatibility 
 

10
10

PS5 Compatibility Photo  

Gigabyte M28U PS5 Compatibility Photo
MSI Optix G321CU PS5 Compatibility Photo

PS5 Compatibility Table  

MSI Optix G321CU 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

Show text

Xbox Series X|S Compatibility 
 

10
9.1

XSX Compatibility Photo  

Gigabyte M28U XSX Compatibility Photo
MSI Optix G321CU XSX Compatibility Photo

XSX Compatibility Table  

MSI Optix G321CU 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

Show text

Inputs Photos  

Inputs 1  

Gigabyte M28U Inputs 1
MSI Optix G321CU Inputs 1

Inputs 2  

Gigabyte M28U Inputs 2
MSI Optix G321CU Inputs 2

Video And Audio Ports 
 

DisplayPort 
 

1 (DP 1.4)
1 (DP 1.4)

Mini DisplayPort 
 

No
No

HDMI 
 

2 (HDMI 2.1)
2 (HDMI 2.1)

HDMI 2.1 Rated Speed 
 

24Gbps (FRL 6x4)
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

Show text

USB 
 

USB-A Ports 
 

3
0

USB-A Rated Speed 
 

5Gbps (USB 3.2 Gen 1)
No USB-A Ports

USB-B Upstream Port 
 

Yes
No

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

Show text

macOS Compatibility 
 

macOS Screenshot  

Gigabyte M28U macOS Screenshot
MSI Optix G321CU macOS Screenshot

Show text

Features

Additional Features 
 

Speakers 
 

Yes
No

RGB Illumination 
 

No
No

Multiple Input Display 
 

PIP + PBP
PIP + PBP

KVM Switch 
 

Yes
No

Show text

On-Screen Display (OSD) 
 

OSD Picture  

Gigabyte M28U OSD Picture
MSI Optix G321CU OSD Picture

Gigabyte M28U

MSI Optix G321CU

Comments

  1. Comparison

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