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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
Samsung Odyssey G51C S27CG51 vs Samsung Odyssey G55C S27CG55
Side-by-Side Comparison
Products
Samsung Odyssey G51C S27CG51
Samsung Odyssey G55C S27CG55
Tested using Methodology v2.0.1
Updated Feb 19, 2025 04:48 PM
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Amazon.comTested using Methodology v2.0.1
Updated Feb 19, 2025 04:50 PM
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Max Refresh Rate165 Hz
Size27"
Pixel TypeVA
Native Resolution2560 x 1440
Max Refresh Rate165 Hz
Size27"
Pixel TypeVA
Native Resolution2560 x 1440
Variants
- LS27CG512ENXZA (27")
- LS27CG552ENXZA (27")
Our Verdict
Samsung Odyssey G51C S27CG51
Samsung Odyssey G55C S27CG55
The Samsung Odyssey G5/G51C S27CG51 and the Samsung Odyssey G5/G55C S27CG55 are both 27-inch gaming monitors. Despite the G5/G51C being marketed as a lower-end monitor, it has better gaming performance. The G5/G51C has a substantially better response time, so fast-moving objects look crisper, and the monitor has considerably lower latency. The G5/G51C also has better ergonomics, so placing it in your preferred position for a long gaming session is easier. However, the G5/G55C gets considerably brighter, and you may prefer it if you're regularly gaming in a brighter room.
Check Price
27"
LS27CG512ENXZA
Searching
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LS27CG552ENXZA
Searching
Finding store27"
LS27CG512ENXZA
Searching
Finding store27"
LS27CG552ENXZA
Searching
Finding store27"
LS27CG512ENXZA
Searching
Finding store27"
LS27CG552ENXZA
Searching
Finding store27"
LS27CG512ENXZA
Searching
Finding store27"
LS27CG552ENXZA
Searching
Finding store27"
LS27CG512ENXZA
Searching
Finding store27"
LS27CG552ENXZA
Searching
Finding store27"
LS27CG512ENXZA
Searching
Finding store27"
LS27CG552ENXZA
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Finding storeMain Differences forPC Gaming
PC Gaming
Threshold
PC Gaming
6.8
6.1
VRR Motion Performance
6.2
3.7
Refresh Rate Compliance
6.8
4.8
Input Lag
8.8
7.6
Black Uniformity
8.5
3.9
Full Comparison
Design
Style
Design Picture
Curved
No
Yes
Curve Radius
Not Curved
1000R
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.0
7.0
Build Quality Picture
Ergonomics
9.0
1.7
Ergonomics Picture
Back Picture
Height Adjustment
4.7" (11.9 cm)
0.0" (0.0 cm)
Min Height To Top Of Panel
15.3" (38.8 cm)
N/A
Tilt Range
-22.5° to 5°
-17.5° to 2.5°
Rotate Portrait/Landscape
Yes, Clockwise
No
Swivel Range
-30° to 30°
No swivel
Wall Mount
VESA 100x100
VESA 75x75
Stand
Stand Picture
Thickness Picture
Base Width
18.0" (45.8 cm)
21.9" (55.5 cm)
Base Depth
8.6" (21.9 cm)
11.2" (28.5 cm)
Thickness (With Display)
6.5" (16.4 cm)
9.3" (23.5 cm)
Weight (With Display)
10.4 lbs (4.7 kg)
9.3 lbs (4.2 kg)
Display
Display Picture
Size
27"
27"
Housing Width
24.3" (61.7 cm)
24.2" (61.5 cm)
Housing Height
15.0" (38.0 cm)
15.0" (38.0 cm)
Thickness (Without Stand)
2.9" (7.4 cm)
4.7" (12.0 cm)
Weight (Without Stand)
7.2 lbs (3.3 kg)
8.4 lbs (3.8 kg)
Borders Size (Bezels)
0.2" (0.6 cm)
0.4" (1.0 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
External Brick
External Brick
Picture Quality
Contrast
7.7
7.8
Checkerboard Picture
Native Contrast
2,734 : 1
2,922 : 1
Contrast With Local Dimming
N/A
N/A
Local Dimming
0.0
0.0
Local Dimming Video
Local Dimming
No
No
Backlight
Edge
Edge
SDR Brightness
6.8
7.8
Real Scene
242 cd/m²
319 cd/m²
Peak 2% Window
249 cd/m²
334 cd/m²
Peak 10% Window
250 cd/m²
335 cd/m²
Peak 25% Window
250 cd/m²
335 cd/m²
Peak 50% Window
250 cd/m²
335 cd/m²
Peak 100% Window
250 cd/m²
336 cd/m²
Sustained 2% Window
249 cd/m²
334 cd/m²
Sustained 10% Window
250 cd/m²
335 cd/m²
Sustained 25% Window
250 cd/m²
335 cd/m²
Sustained 50% Window
250 cd/m²
335 cd/m²
Sustained 100% Window
249 cd/m²
335 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.000
Minimum Brightness
42 cd/m²
38 cd/m²
HDR Brightness
5.9
6.3
EOTF
VESA DisplayHDR Certification
No Certification
No Certification
Real Scene
279 cd/m²
327 cd/m²
Peak 2% Window
295 cd/m²
342 cd/m²
Peak 10% Window
296 cd/m²
342 cd/m²
Peak 25% Window
297 cd/m²
342 cd/m²
Peak 50% Window
297 cd/m²
342 cd/m²
Peak 100% Window
297 cd/m²
342 cd/m²
Sustained 2% Window
295 cd/m²
342 cd/m²
Sustained 10% Window
296 cd/m²
342 cd/m²
Sustained 25% Window
296 cd/m²
342 cd/m²
Sustained 50% Window
297 cd/m²
342 cd/m²
Sustained 100% Window
296 cd/m²
342 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.000
Horizontal Viewing Angle
6.3
5.3
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
34°
30°
Color Washout From Right
34°
26°
Horizontal Hue Graph
Color Shift From Left
70°
40°
Color Shift From Right
70°
36°
Horizontal Lightness Graph
Brightness Loss From Left
43°
31°
Brightness Loss From Right
43°
28°
Black Level Raise From Left
20°
14°
Black Level Raise From Right
22°
11°
Gamma Shift From Left
11°
15°
Gamma Shift From Right
11°
12°
Vertical Viewing Angle
5.7
4.9
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
26°
25°
Color Washout From Above
28°
25°
Vertical Hue Graph
Color Shift From Below
57°
26°
Color Shift From Above
57°
26°
Vertical Lightness Graph
Brightness Loss From Below
30°
29°
Brightness Loss From Above
32°
29°
Black Level Raise From Below
19°
8°
Black Level Raise From Above
21°
7°
Gamma Shift From Below
11°
14°
Gamma Shift From Above
14°
13°
Gray Uniformity
8.6
8.4
50% Uniformity Picture
50% Std. Dev.
1.959%
1.735%
50% DSE
0.122%
0.141%
Black Uniformity
8.5
3.9
Native Black Uniformity Picture
Native Std. Dev.
0.748%
3.384%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
6.9
8.1
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Custom
Original
sRGB Gamut Area xy
100.5%
101.2%
White Balance dE (Avg.)
7.86
4.39
Color Temperature (Avg.)
8,063 K
7,393 K
Gamma (Avg.)
2.16
2.13
Color dE (Avg.)
4.95
3.02
Contrast Setting
70
50
RGB Settings
50-50-50
0-0-0
Gamma Setting
Mode 1
0
Brightness Setting
100
50
Measured Brightness
294 cd/m²
371 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.0
9.3
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom
Original
sRGB Gamut Area xy
99.7%
99.4%
White Balance dE (Avg.)
0.58
0.48
Color Temperature (Avg.)
6,539 K
6,510 K
Gamma (Avg.)
2.19
2.18
Color dE (Avg.)
3.61
2.25
Contrast Setting
70
48
RGB Settings
42-41-41
7-3-(-13)
Gamma Setting
Mode 3
0
Brightness Setting
24
9
Measured Brightness
100 cd/m²
99 cd/m²
SDR Color Gamut
8.6
9.1
sRGB Color Gamut Picture
sRGB Coverage xy
95.2%
99.1%
sRGB Picture Mode
Custom
Original
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
75.4%
76.5%
Adobe RGB Picture Mode
Custom
Original
HDR Color Gamut
5.7
6.1
Wide Color Gamut
No
No
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
73.5%
76.5%
DCI-P3 Picture Mode
HDR Standard
Graphics
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
52.9%
54.8%
Rec. 2020 Picture Mode
HDR Standard
Graphics
HDR Color Volume
5.9
6.1
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
44.7%
46.3%
DCI-P3 Picture Mode
HDR Standard
Graphics
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
19.1%
19.9%
Rec. 2020 Picture Mode
HDR Standard
Graphics
Text Clarity
7.5
7.5
ClearType On
ClearType Off
Pixel Type
VA
VA
Pixels
Subpixel Layout
RGB
RGB
Reflections
7.5
7.2
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Semi-Gloss
Total Reflections
5.8%
5.8%
Indirect Reflections
3.8%
3.2%
Calculated Direct Reflections
1.9%
2.6%
Gradient
9.3
9.8
Gradient Picture
Color Depth
10 Bit
10 Bit
Motion
Refresh Rate
7.5
7.5
Native Refresh Rate
165 Hz
165 Hz
Max Refresh Rate
165 Hz
165 Hz
Max Refresh Rate Over DP
165 Hz
165 Hz
Max Refresh Rate Over HDMI
144 Hz
144 Hz
Max Refresh Rate Over DP @ 10-bit
120 Hz
120 Hz
Max Refresh Rate Over HDMI @ 10-Bit
60 Hz
60 Hz
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Yes
Yes
G-SYNC
Compatible (Tested)
Compatible (Tested)
VRR Maximum
165 Hz
165 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
VRR Motion Performance
6.2
3.7
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
FreeSync Premium (Extreme)
Adaptive-Sync
Variable Overdrive Advertised
No
No
Avg. CAD
270
491
Best CAD
229
460
Worst CAD
382
542
Refresh Rate Compliance
6.8
4.8
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
46%
31%
Compliance @ 120 FPS
54%
40%
Compliance @ 60 FPS
69%
58%
CAD @ Max Refresh Rate
6.2
5.3
Pursuit Photo At Max Refresh
CAD Heatmap At Max Refresh
OD Transition Max Refresh Rate
OD extreme
0 to 31
OD extreme
0 to 31
Recommended Overdrive Setting
FreeSync (Extreme)
Extreme
Avg. CAD
230
295
Best 10% CAD
89
91
Worst 10% CAD
558
680
Response Time @ Max Refresh Rate
First Response Time
9.7 ms
13.2 ms
Total Response Time
11.5 ms
14.4 ms
Recommended Overdrive Setting
FreeSync (Extreme)
Extreme
RGB Overshoot
3 RGB
2 RGB
Worst 10% RGB Overshoot
11 RGB
14 RGB
Worst 10% First Response Time
25.7 ms
33.0 ms
Worst 10% Total Response Time
25.7 ms
33.0 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
CAD @ 120Hz
6.4
5.3
Pursuit Photo 120Hz
CAD Heatmap 120Hz
OD Transition 120Hz
OD extreme
0 to 31
OD extreme
0 to 31
Recommended Overdrive Setting
FreeSync (Extreme)
Extreme
Avg. CAD
237
299
Best 10% CAD
110
90
Worst 10% CAD
473
688
Response Time @ 120Hz
Worst 10% First Response Time
23.1 ms
33.6 ms
RGB Overshoot
5 RGB
2 RGB
Total Response Time
12.1 ms
14.5 ms
First Response Time
7.8 ms
13.4 ms
Recommended Overdrive Setting
FreeSync (Extreme)
Extreme
Worst 10% Total Response Time
23.1 ms
33.6 ms
Worst 10% RGB Overshoot
13 RGB
13 RGB
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
CAD @ 60Hz
5.3
5.4
Pursuit Photo 60Hz
CAD Heatmap 60Hz
OD Transition 60Hz
OD extreme
0 to 31
OD extreme
0 to 31
Recommended Overdrive Setting
FreeSync (Faster)
Extreme
Avg. CAD
310
290
Best 10% CAD
144
89
Worst 10% CAD
624
653
Response Time @ 60Hz
Recommended Overdrive Setting
FreeSync (Faster)
Extreme
First Response Time
8.6 ms
12.6 ms
Total Response Time
18.2 ms
13.8 ms
RGB Overshoot
6 RGB
2 RGB
Worst 10% Total Response Time
28.5 ms
29.6 ms
Worst 10% First Response Time
20.8 ms
29.6 ms
Worst 10% RGB Overshoot
18 RGB
13 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
165 Hz
165 Hz
Minimum Frequency
120 Hz
165 Hz
Longest Pulse Width Brightness
54 cd/m²
120 cd/m²
Shortest Pulse Width Brightness
54 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
VRR Flicker
7.6
4.0
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
1.7 RGB
3.3 RGB
Middle Gray Flicker
1.9 RGB
4.0 RGB
Light Gray Flicker
1.6 RGB
2.9 RGB
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
8.8
7.6
Native Resolution @ Max Hz
4.6 ms
12.9 ms
Native Resolution @ 120Hz
5.8 ms
5.0 ms
Native Resolution @ 60Hz
9.9 ms
25.4 ms
Backlight Strobing (BFI)
7.9 ms
16.0 ms
Resolution
7.5
7.5
Native Resolution
2560 x 1440
2560 x 1440
Aspect Ratio
16:9
16:9
Megapixels
3.7 MP
3.7 MP
Pixel Density
109 PPI
109 PPI
PS5 Compatibility
4.9
4.9
PS5 Compatibility Photo
PS5 Compatibility Table
4k @ 120Hz
No
No
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
Xbox Series X|S Compatibility
6.6
6.6
XSX Compatibility Photo
XSX Compatibility Table
4k @ 120Hz
No
No
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.2)
1 (DP 1.2)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
No DisplayPort 2.1
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
1 (HDMI 2.0)
HDMI 2.1 Bandwidth
No HDMI 2.1
No HDMI 2.1
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)
1 (Service Port Only)
USB-A Rated Speed
480Mbps (USB 2.0)
480Mbps (USB 2.0)
USB-B Upstream Port
No
No
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
No
No
RGB Illumination
No
No
Multiple Input Display
No
No
KVM Switch
No
No
On-Screen Display (OSD)
OSD Picture
Check Price
27"
LS27CG512ENXZA
Searching
Finding store27"
LS27CG552ENXZA
Searching
Finding store27"
LS27CG512ENXZA
Searching
Finding store27"
LS27CG552ENXZA
Searching
Finding store27"
LS27CG512ENXZA
Searching
Finding store27"
LS27CG552ENXZA
Searching
Finding store27"
LS27CG512ENXZA
Searching
Finding store27"
LS27CG552ENXZA
Searching
Finding store27"
LS27CG512ENXZA
Searching
Finding store27"
LS27CG552ENXZA
Searching
Finding store27"
LS27CG512ENXZA
Searching
Finding store27"
LS27CG552ENXZA
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Samsung Odyssey G51C S27CG51
Samsung Odyssey G55C S27CG55
Comments
Samsung Odyssey G51C S27CG51 vs Samsung Odyssey G55C S27CG55: Main Discussion
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