Products
Samsung Odyssey G55T C27G55T
Samsung Odyssey G7 S28AG70
Tested using Methodology v1.2
Updated Jun 13, 2025 08:56 PM
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Amazon.com
Tested using Methodology v1.2
Updated Jul 14, 2025 03:42 PM
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Max Refresh Rate
144 Hz
Size
27"
Pixel Type
VA
Variable Refresh Rate
Yes
HDR10
Yes
Native Resolution
2560 x 1440
Max Refresh Rate
144 Hz
Size
28"
Pixel Type
IPS
Variable Refresh Rate
Yes
HDR10
Yes
Native Resolution
3840 x 2160
Our Verdict
Samsung Odyssey G55T C27G55T
Samsung Odyssey G7 S28AG70
The Samsung Odyssey G7 S28AG70 is much better than the Samsung Odyssey G55T C27G55T because it's a higher-end monitor. The S28AG70 has a 4k resolution that delivers sharp text, while the C27G55T has a 1440p resolution. The S28AG70 has an IPS panel with wider viewing angles, and the C27G55T has a VA panel with better contrast. They each have a 144Hz refresh rate, but the S28AG70 has much better motion handling thanks to the quicker response time, especially at 60Hz, and it also gets brighter. The S28AG70 has a local dimming feature, which the C27G55T doesn't have, but it doesn't add much because it's terrible.
Variants
- LC27G55TQWNXZA (27")
- Odyssey G7 S28AG70 (28")
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27"
LC27G55TQWNXZA
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28"
Odyssey G7 S28AG70
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27"
LC27G55TQWNXZA
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28"
Odyssey G7 S28AG70
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27"
LC27G55TQWNXZA
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28"
Odyssey G7 S28AG70
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27"
LC27G55TQWNXZA
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28"
Odyssey G7 S28AG70
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27"
LC27G55TQWNXZA
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28"
Odyssey G7 S28AG70
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Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
6.7
8.0
Ergonomics
1.7
8.1
Image Flicker
2.0
10
Resolution And Size
8.0
9.0
Text Clarity
7.0
9.0
Response Time @ Max Refresh Rate
4.7
8.6
Vertical Viewing Angle
4.9
7.8
Horizontal Viewing Angle
5.4
7.6
Full Comparison
Design
Style
Design Picture
Curved
Yes
No
Curve Radius
1000R
Not Curved
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.0
7.0
Build Quality Picture
Ergonomics
1.7
8.1
Ergonomics Picture
Back Picture
Height Adjustment
0.0" (0.0 cm)
4.7" (12.0 cm)
Tilt Range
-17.5° to 2.5°
-12.5° to 10°
Rotate Portrait/Landscape
No
Yes, Clockwise
Swivel Range
No swivel
-15° to 15°
Wall Mount
VESA 75x75
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
21.7" (55.0 cm)
17.8" (45.1 cm)
Base Depth
10.8" (27.5 cm)
9.1" (23.1 cm)
Thickness (With Display)
9.4" (24.0 cm)
7.8" (19.8 cm)
Weight (With Display)
9.9 lbs (4.5 kg)
17.1 lbs (7.8 kg)
Display
Display Picture
Size
27"
28"
Housing Width
24.2" (61.4 cm)
25.1" (63.7 cm)
Housing Height
15.1" (38.3 cm)
15.0" (38.0 cm)
Thickness (Without Stand)
4.7" (12.0 cm)
4.0" (10.2 cm)
Weight (Without Stand)
9.7 lbs (4.4 kg)
13.4 lbs (6.1 kg)
Borders Size (Bezels)
0.5" (1.2 cm)
0.3" (0.8 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
External Brick
External Brick
Picture Quality
Contrast
7.9
6.2
Checkerboard Picture
Native Contrast
2,997 : 1
1,155 : 1
Contrast With Local Dimming
N/A
1,176 : 1
Local Dimming
0.0
2.0
Local Dimming Video
Local Dimming
No
Yes
Backlight
Edge
Edge
SDR Brightness
7.2
7.5
Real Scene
285 cd/m²
285 cd/m²
Peak 2% Window
150 cd/m²
360 cd/m²
Peak 10% Window
281 cd/m²
372 cd/m²
Peak 25% Window
281 cd/m²
361 cd/m²
Peak 50% Window
281 cd/m²
347 cd/m²
Peak 100% Window
281 cd/m²
315 cd/m²
Sustained 2% Window
150 cd/m²
358 cd/m²
Sustained 10% Window
281 cd/m²
370 cd/m²
Sustained 25% Window
281 cd/m²
360 cd/m²
Sustained 50% Window
281 cd/m²
346 cd/m²
Sustained 100% Window
281 cd/m²
314 cd/m²
Automatic Brightness Limiting (ABL)
0.044
0.010
Minimum Brightness
37 cd/m²
28 cd/m²
HDR Brightness
5.9
6.3
EOTF
VESA DisplayHDR Certification
No Certification
DisplayHDR 400 - 1.0/1.1
Real Scene
298 cd/m²
315 cd/m²
Peak 2% Window
159 cd/m²
395 cd/m²
Peak 10% Window
297 cd/m²
408 cd/m²
Peak 25% Window
297 cd/m²
378 cd/m²
Peak 50% Window
297 cd/m²
380 cd/m²
Peak 100% Window
297 cd/m²
345 cd/m²
Sustained 2% Window
158 cd/m²
393 cd/m²
Sustained 10% Window
296 cd/m²
406 cd/m²
Sustained 25% Window
297 cd/m²
377 cd/m²
Sustained 50% Window
297 cd/m²
378 cd/m²
Sustained 100% Window
297 cd/m²
344 cd/m²
Automatic Brightness Limiting (ABL)
0.043
0.009
Horizontal Viewing Angle
5.4
7.6
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
29°
40°
Color Washout From Right
29°
41°
Horizontal Hue Graph
Color Shift From Left
39°
47°
Color Shift From Right
42°
49°
Horizontal Lightness Graph
Brightness Loss From Left
30°
43°
Brightness Loss From Right
30°
44°
Black Level Raise From Left
12°
70°
Black Level Raise From Right
14°
70°
Gamma Shift From Left
12°
36°
Gamma Shift From Right
15°
39°
Vertical Viewing Angle
4.9
7.8
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
25°
33°
Color Washout From Above
26°
34°
Vertical Hue Graph
Color Shift From Below
25°
52°
Color Shift From Above
29°
58°
Vertical Lightness Graph
Brightness Loss From Below
28°
36°
Brightness Loss From Above
29°
37°
Black Level Raise From Below
6°
70°
Black Level Raise From Above
9°
70°
Gamma Shift From Below
12°
49°
Gamma Shift From Above
15°
57°
Gray Uniformity
8.7
7.7
50% Uniformity Picture
50% Std. Dev.
1.852%
3.428%
50% DSE
0.119%
0.156%
Black Uniformity
3.5
5.4
Native Black Uniformity Picture
Native Std. Dev.
3.691%
1.702%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
6.039%
Color Accuracy (Pre-Calibration)
9.0
7.7
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Custom
sRGB
sRGB Gamut Area xy
101.1%
104.9%
White Balance dE (Avg.)
1.74
4.78
Color Temperature (Avg.)
6,747 K
6,416 K
Gamma (Avg.)
2.08
2.20
Color dE (Avg.)
2.16
3.07
Contrast Setting
75
N/A
RGB Settings
50-50-50
N/A
Gamma Setting
Mode 1
N/A
Brightness Setting
55
50
Measured Brightness
191 cd/m²
310 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.3
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom
Custom
sRGB Gamut Area xy
95.0%
98.2%
White Balance dE (Avg.)
0.51
0.42
Color Temperature (Avg.)
6,472 K
6,486 K
Gamma (Avg.)
2.19
2.17
Color dE (Avg.)
0.84
0.38
Contrast Setting
75
75
RGB Settings
52-49-48
49-50-47
Gamma Setting
Mode 1
Mode 1
Brightness Setting
26
26
Measured Brightness
100 cd/m²
100 cd/m²
SDR Color Gamut
8.5
9.4
sRGB Color Gamut Picture
sRGB Coverage xy
95.5%
99.2%
sRGB Picture Mode
Custom
Custom
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
73.2%
83.2%
Adobe RGB Picture Mode
Custom
Custom
SDR Color Volume
7.7
9.6
sRGB Color Volume ITP Picture
sRGB In ICtCp
79.7%
98.1%
sRGB Picture Mode
Custom
Custom
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
67.4%
89.2%
Adobe RGB Picture Mode
Custom
Custom
HDR Color Gamut
5.9
7.4
Wide Color Gamut
No
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
74.7%
86.7%
DCI-P3 Picture Mode
Custom
HDR Dynamic
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
51.9%
63.8%
Rec. 2020 Picture Mode
Custom
HDR Dynamic
HDR Color Volume
5.4
7.7
DCI-P3 Color Volume ITP Picture
DCI-P3 In ICtCp
55.3%
78.6%
DCI-P3 Picture Mode
Custom
HDR Dynamic
Rec. 2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
42.2%
57.2%
Rec. 2020 Picture Mode
Custom
HDR Dynamic
Reflections
7.8
7.4
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
5.2%
5.3%
Indirect Reflections
3.6%
2.8%
Calculated Direct Reflections
1.5%
2.5%
Text Clarity
7.0
9.0
ClearType On
ClearType Off
Pixel Type
VA
IPS
Pixels
Subpixel Layout
RGB
RGB
Gradient
9.8
9.8
Gradient Picture
Color Depth
10 Bit
10 Bit
Motion
Refresh Rate
8.3
8.3
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
120 Hz
144 Hz
Max Refresh Rate Over HDMI @ 10-Bit
60 Hz
144 Hz
Variable Refresh Rate (VRR)
FreeSync
Yes
Yes
G-SYNC
Compatible (Tested)
Compatible (NVIDIA Certified)
VRR Maximum
144 Hz
144 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
Variable Refresh Rate
Yes
Yes
Response Time @ Max Refresh Rate
4.7
8.6
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
FreeSync On
Adaptive Sync
Rise / Fall Time
11.6 ms
2.8 ms
Total Response Time
21.9 ms
8.8 ms
Overshoot Error
0.0%
7.6%
Worst 3 Rise / Fall Time
23.2 ms
3.6 ms
Worst 3 Total Response Time
38.6 ms
12.3 ms
Worst 3 Overshoot Error
0.0%
22.1%
Response Time @ 120Hz
4.5
8.4
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
FreeSync On
Adaptive Sync
Rise / Fall Time
12.3 ms
2.8 ms
Total Response Time
22.9 ms
10.2 ms
Overshoot Error
0.0%
9.2%
Worst 3 Rise / Fall Time
23.3 ms
3.6 ms
Worst 3 Total Response Time
38.7 ms
14.2 ms
Worst 3 Overshoot Error
0.0%
26.6%
Response Time @ 60Hz
2.6
7.3
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
FreeSync On
Adaptive Sync
Rise / Fall Time
18.2 ms
2.8 ms
Total Response Time
33.3 ms
17 ms
Overshoot Error
0.0%
10.6%
Worst 3 Rise / Fall Time
28.3 ms
3.5 ms
Worst 3 Total Response Time
49.7 ms
23.9 ms
Worst 3 Overshoot Error
0.0%
33.8%
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
Yes
Yes
Maximum Frequency
144 Hz
144 Hz
Minimum Frequency
144 Hz
120 Hz
Longest Pulse Width Brightness
147 cd/m²
120 cd/m²
Shortest Pulse Width Brightness
147 cd/m²
120 cd/m²
Pulse Width Control
No
No
Pulse Phase Control
No
No
Pulse Amplitude Control
No
No
VRR At The Same Time
No
No
Image Flicker
2.0
10
Backlight Picture
Flicker-Free
No
Yes
PWM Dimming Frequency
144 Hz
0 Hz
Inputs
Input Lag
8.8
8.9
Native Resolution @ Max Hz
4.5 ms
4.1 ms
Native Resolution @ 120Hz
5.2 ms
4.7 ms
Native Resolution @ 60Hz
9.2 ms
12.8 ms
Backlight Strobing (BFI)
4.4 ms
4.2 ms
Resolution And Size
8.0
9.0
Native Resolution
2560 x 1440
3840 x 2160
Aspect Ratio
16:9
16:9
Megapixels
3.7 MP
8.3 MP
Pixel Density
109 PPI
160 PPI
Measured Screen Diagonal
27.0"
27.9"
Screen Area
310 in²
330 in²
PS5 Compatibility
7.0
10
PS5 Compatibility Photo
4k @ 120Hz
No
Yes
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
No
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
Yes
Yes
VRR
No
Yes
Xbox Series X|S Compatibility
9.2
10
XSX Compatibility Photo
4k @ 120Hz
No
Yes
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
Yes
Yes
VRR
Yes
Yes
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.2)
1 (DP 1.4)
Mini DisplayPort
No
No
HDMI
1 (HDMI 2.0)
2 (HDMI 2.1)
HDMI 2.1 Rated Speed
No HDMI 2.1
40Gbps (FRL 10x4)
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
1 (Service Port Only)
2
USB-A Rated Speed
480Mbps (USB 2.0)
5Gbps (USB 3.2 Gen 1)
USB-B Upstream Port
No
Yes
USB-C Ports
0
0
USB-C Upstream
No USB-C Ports
No USB-C Ports
USB-C Rated Speed
No USB-C Ports
No USB-C Ports
USB-C Power Delivery
No USB-C Ports
No USB-C Ports
USB-C DisplayPort Alt Mode
No USB-C Ports
No USB-C Ports
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
No
RGB Illumination
No
Controllable
Multiple Input Display
No
PIP
KVM Switch
No
No
On-Screen Display (OSD)
OSD Picture
Check Price
27"
LC27G55TQWNXZA
SEE PRICE
Amazon.com
28"
Odyssey G7 S28AG70
SEE PRICE
Amazon.com
27"
LC27G55TQWNXZA
SEE PRICE
BestBuy.com
28"
Odyssey G7 S28AG70
SEE PRICE
BestBuy.com
27"
LC27G55TQWNXZA
SEE PRICE
Walmart.com
28"
Odyssey G7 S28AG70
SEARCH
B&H
27"
LC27G55TQWNXZA
SEARCH
B&H
28"
Odyssey G7 S28AG70
SEARCH
Samsung.com
27"
LC27G55TQWNXZA
SEARCH
Samsung.com
28"
Odyssey G7 S28AG70
SEARCH
Walmart.com
Samsung Odyssey G55T C27G55T
Samsung Odyssey G7 S28AG70
Comments
Samsung Odyssey G55T C27G55T vs Samsung Odyssey G7 S28AG70: Main Discussion
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