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LG 27GP850-B/27GP83B-B vs Samsung Odyssey G51C S27CG51

Which Monitor Is Better?

    Top
    Main Differences
    Design
      StyleBuild QualityErgonomicsStandDisplayControlsIn The Box
    Picture Quality
      ContrastLocal DimmingSDR BrightnessHDR BrightnessGray UniformityBlack UniformityColor Accuracy (Pre-Calibration)Color Accuracy (Post-Calibration)SDR Color GamutHDR Color GamutHDR Color VolumeViewing AngleText ClarityDirect ReflectionsAmbient Black Level RaiseTotal Reflected LightGradient
    Motion
      Refresh RateVariable Refresh Rate (VRR)VRR Motion PerformanceRefresh Rate ComplianceCAD @ Max Refresh RateResponse Time @ Max Refresh RateCAD @ 120HzResponse Time @ 120HzCAD @ 60HzResponse Time @ 60HzBacklight Strobing (BFI)VRR FlickerImage Flicker
    Inputs
      Input LagResolutionPS5 CompatibilityXbox Series X|S CompatibilityInputsUSBmacOS Compatibility
    Features
      Additional FeaturesOn-Screen Display (OSD)
    Comments

Products

LG 27GP850-B/27GP83B-B
Samsung Odyssey G51C S27CG51

Tested using Methodology v2.1.1

Updated Nov 07, 2025 02:23 PM

SEE PRICE
LG.com

Tested using Methodology v2.1.1

Updated Jan 23, 2026 07:21 PM

SEE PRICE
Samsung.com
LG 27GP850-B/27GP83B-B Picture
Samsung Odyssey G51C S27CG51 Picture
Max Refresh Rate
180 Hz
Size
27"
Panel Type
IPS
Native Resolution
2560 x 1440
Max Refresh Rate
165 Hz
Size
27"
Panel Type
VA
Native Resolution
2560 x 1440

Our Verdict

LG 27GP850-B/27GP83B-B

Samsung Odyssey G51C S27CG51

The LG 27GP850-B/27GP83B-B and the Samsung Odyssey G51C S27CG51 are both low-cost 1440p gaming monitors, but there are a few differences. The LG is better for most gamers as it has a much faster response time, leading to sharper motion, and it has an overclock for a slightly higher 180Hz refresh rate. The LG also has two USB-A ports to connect your peripherals. Lastly, while the LG is better for use in well-lit rooms thanks to its higher peak brightness, the Samsung is better for dark rooms, as it has a higher contrast ratio.

0 

Variants

  • 27GP850-B (27")
  • 27GP83B-B (27")
  • LS27CG512ENXZA (27")

Review

See LG 27GP850-B/27GP83B-B Review
See Samsung Odyssey G51C S27CG51 Review
66 
41 

Check Price

27"
27GP850-B
SEE PRICE
LG.com
27"
LS27CG512ENXZA
SEE PRICE
Samsung.com
27"
27GP83B-B
SEE PRICE
LG.com
27"
LS27CG512ENXZA
SEE PRICE
Amazon.com
 
27"
LS27CG512ENXZA
SEE PRICE
B&H
 
27"
LS27CG512ENXZA
SEE PRICE
BestBuy.com
 
27"
LS27CG512ENXZA
SEE PRICE
Walmart.com

Main Differences for
PC Gaming

Threshold 

0.10

PC Gaming 
 

7.2
6.8

VRR Motion Performance 
 

8.2
6.2

CAD @ Max Refresh Rate 
 

8.2
6.2

Contrast 
 

5.6
7.7

Refresh Rate Compliance 
 

7.9
6.8

CAD @ 60Hz 
 

8.0
5.3

CAD @ 120Hz 
 

8.0
6.4

Full Comparison

Design

Style 
 

Design Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Design Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Design Picture

Curved 
 

No
No

Curve Radius 
 

Not Curved
Not Curved
Show Text 

Build Quality 
 

7.0
7.0

Build Quality Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Build Quality Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Build Quality Picture
Show Text 

Ergonomics 
 

7.5
9.0

Ergonomics Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Ergonomics Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Ergonomics Picture

Back Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Back Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Back Picture

Height Adjustment 
 

4.3" (11.0 cm)
4.7" (11.9 cm)

Min Height To Top Of Panel 
 

18.0" (45.8 cm)
15.3" (38.8 cm)

Tilt Range 
 

-15° to 5°
-22.5° to 5°

Rotate Portrait/Landscape 
 

Yes, Clockwise
Yes, Clockwise

Swivel Range 
 

No swivel
-30° to 30°

Wall Mount 
 

VESA 100x100
VESA 100x100
Show Text 

Stand 
 

Stand Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Stand Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Stand Picture

Thickness Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Thickness Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Thickness Picture

Base Width 
 

16.7" (42.5 cm)
18.0" (45.8 cm)

Base Depth 
 

11.5" (29.3 cm)
8.6" (21.9 cm)

Thickness (With Display) 
 

8.9" (22.6 cm)
6.5" (16.4 cm)

Weight (With Display) 
 

13.7 lbs (6.2 kg)
10.4 lbs (4.7 kg)
Show Text 

Display 
 

Display Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Display Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Display Picture

Size 
 

27"
27"

Housing Width 
 

24.2" (61.5 cm)
24.3" (61.7 cm)

Housing Height 
 

14.4" (36.5 cm)
15.0" (38.0 cm)

Thickness (Without Stand) 
 

2.0" (5.1 cm)
2.9" (7.4 cm)

Weight (Without Stand) 
 

9.0 lbs (4.1 kg)
7.2 lbs (3.3 kg)

Borders Size (Bezels)  
 

0.3" (0.8 cm)
0.2" (0.6 cm)

Controls 
 

Controls Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Controls Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Controls Picture
Show Text 

In The Box 
 

In The Box Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B In The Box Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 In The Box Picture

Power Supply 
 

External Brick
External Brick
Show Text 
Picture Quality

Contrast 
 

5.6
7.7

Checkerboard Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Checkerboard Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Checkerboard Picture

Native Contrast 
 

807 : 1
2,734 : 1

Contrast With Local Dimming 
 

N/A
N/A
Show Text 

Local Dimming 
 

0.0
0.0

Local Dimming Video  

Local Dimming 
 

No
No

Backlight 
 

Edge
Edge
Show Text 

SDR Brightness 
 

8.0
6.8

Real Scene 
 

349 cd/m²
242 cd/m²

Peak 2% Window 
 

364 cd/m²
249 cd/m²

Peak 10% Window 
 

364 cd/m²
250 cd/m²

Peak 25% Window 
 

365 cd/m²
250 cd/m²

Peak 50% Window 
 

365 cd/m²
250 cd/m²

Peak 100% Window 
 

365 cd/m²
250 cd/m²

Sustained 2% Window 
 

364 cd/m²
249 cd/m²

Sustained 10% Window 
 

364 cd/m²
250 cd/m²

Sustained 25% Window 
 

364 cd/m²
250 cd/m²

Sustained 50% Window 
 

365 cd/m²
250 cd/m²

Sustained 100% Window 
 

365 cd/m²
249 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.000
0.000

Minimum Brightness 
 

22 cd/m²
42 cd/m²
Show Text 

HDR Brightness 
 

7.1
5.9

EOTF 
 

Compare High-Res
LG 27GP850-B/27GP83B-B EOTF
Compare High-Res
Samsung Odyssey G51C S27CG51 EOTF

VESA DisplayHDR Certification 
 

DisplayHDR 400 - 1.0/1.1
No Certification

Real Scene 
 

465 cd/m²
279 cd/m²

Peak 2% Window 
 

471 cd/m²
295 cd/m²

Peak 10% Window 
 

472 cd/m²
296 cd/m²

Peak 25% Window 
 

473 cd/m²
297 cd/m²

Peak 50% Window 
 

473 cd/m²
297 cd/m²

Peak 100% Window 
 

472 cd/m²
297 cd/m²

Sustained 2% Window 
 

470 cd/m²
295 cd/m²

Sustained 10% Window 
 

471 cd/m²
296 cd/m²

Sustained 25% Window 
 

472 cd/m²
296 cd/m²

Sustained 50% Window 
 

472 cd/m²
297 cd/m²

Sustained 100% Window 
 

472 cd/m²
296 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.000
0.000
Show Text 

Gray Uniformity 
 

8.0
8.6

50% Uniformity Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B 50% Uniformity Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 50% Uniformity Picture

50% Std. Dev. 
 

2.607%
1.959%

50% DSE 
 

0.147%
0.122%
Show Text 

Black Uniformity 
 

5.7
8.5

Native Black Uniformity Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Native Black Uniformity Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Native Black Uniformity Picture

Native Std. Dev. 
 

2.189%
0.748%

Black Uniformity Picture With Local Dimming 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Black Uniformity Picture With Local Dimming
Compare High-Res
Samsung Odyssey G51C S27CG51 Black Uniformity Picture With Local Dimming

Std. Dev. w/ L.D. 
 

N/A
N/A
Show Text 

Color Accuracy (Pre-Calibration) 
 

8.5
6.9

Pre Calibration Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Pre Calibration Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Pre Calibration Picture

Pre Gamma Curve Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Pre Gamma Curve Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Pre Gamma Curve Picture

Pre Color Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Pre Color Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Pre Color Picture

Picture Mode 
 

sRGB
Custom

sRGB Gamut Area xy 
 

101.4%
100.5%

White Balance dE (Avg.) 
 

3.35
7.86

Color Temperature (Avg.) 
 

5,950 K
8,063 K

Gamma (Avg.) 
 

2.05
2.16

Color dE (Avg.) 
 

2.54
4.95

Contrast Setting 
 

70
70

RGB Settings 
 

Default
50-50-50

Gamma Setting 
 

Default
Mode 1

Brightness Setting 
 

22
100

Measured Brightness 
 

119 cd/m²
294 cd/m²

Brightness Locked 
 

No
No
Show Text 

Color Accuracy (Post-Calibration) 
 

9.7
9.0

Post Calibration Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Post Calibration Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Post Calibration Picture

Post Gamma Curve Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Post Gamma Curve Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Post Gamma Curve Picture

Post Color Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Post Color Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Post Color Picture

Picture Mode 
 

Gamer 1
Custom

sRGB Gamut Area xy 
 

101.3%
99.7%

White Balance dE (Avg.) 
 

0.64
0.58

Color Temperature (Avg.) 
 

6,499 K
6,539 K

Gamma (Avg.) 
 

2.18
2.19

Color dE (Avg.) 
 

0.37
3.61

Contrast Setting 
 

68
70

RGB Settings 
 

50-50-47
42-41-41

Gamma Setting 
 

Mode 2
Mode 3

Brightness Setting 
 

21
24

Measured Brightness 
 

99 cd/m²
100 cd/m²

ICC Profile 
 

Download
Download
Show Text 

SDR Color Gamut 
 

9.6
8.6

sRGB Color Gamut Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B sRGB Color Gamut Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 sRGB Color Gamut Picture

sRGB Coverage xy 
 

99.9%
95.2%

sRGB Picture Mode 
 

Gamer 1
Custom

Adobe RGB Color Gamut Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Adobe RGB Color Gamut Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Adobe RGB Color Gamut Picture

Adobe RGB Coverage xy 
 

88.1%
75.4%

Adobe RGB Picture Mode 
 

Gamer 1
Custom
Show Text 

HDR Color Gamut 
 

8.8
5.7

Wide Color Gamut 
 

Yes
No

DCI-P3 Color Gamut Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B DCI-P3 Color Gamut Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 DCI-P3 Color Gamut Picture

DCI-P3 Coverage xy 
 

95.6%
73.5%

DCI-P3 Picture Mode 
 

Gamer 1
HDR Standard

Rec. 2020 Color Gamut Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Rec. 2020 Color Gamut Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Rec. 2020 Color Gamut Picture

Rec. 2020 Coverage xy 
 

70.4%
52.9%

Rec. 2020 Picture Mode 
 

Gamer 1
HDR Standard
Show Text 

HDR Color Volume 
 

7.4
5.9

DCI-P3 Color Volume ITP Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B DCI-P3 Color Volume ITP Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 DCI-P3 Color Volume ITP Picture

1,000 cd/m² DCI-P3 Coverage ICtCp 
 

64.8%
44.7%

DCI-P3 Picture Mode 
 

Gamer 1
HDR Standard

Rec. 2020 Color Volume ITP Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Rec. 2020 Color Volume ITP Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Rec. 2020 Color Volume ITP Picture

10,000 cd/m² Rec. 2020 Coverage ICtCp 
 

29.1%
19.1%

Rec. 2020 Picture Mode 
 

Gamer 1
HDR Standard
Show Text 

Viewing Angle 
 

8.4
6.3

Viewing Angle Video  

Chroma Graph 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Chroma Graph
Compare High-Res
Samsung Odyssey G51C S27CG51 Chroma Graph

Color Washout From Left 
 

45°
34°

Color Washout From Right 
 

45°
34°

Hue Graph 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Hue Graph
Compare High-Res
Samsung Odyssey G51C S27CG51 Hue Graph

Color Shift From Left 
 

52°
70°

Color Shift From Right 
 

53°
70°

Lightness Graph 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Lightness Graph
Compare High-Res
Samsung Odyssey G51C S27CG51 Lightness Graph

Brightness Loss From Left 
 

48°
43°

Brightness Loss From Right 
 

49°
43°

Black Level Raise From Left 
 

70°
20°

Black Level Raise From Right 
 

70°
22°

Gamma Shift From Left 
 

58°
11°

Gamma Shift From Right 
 

57°
11°
Show Text 

Text Clarity 
 

7.5
7.5

ClearType On 
 

Compare High-Res
LG 27GP850-B/27GP83B-B ClearType On
Compare High-Res
Samsung Odyssey G51C S27CG51 ClearType On

ClearType Off 
 

Compare High-Res
LG 27GP850-B/27GP83B-B ClearType Off
Compare High-Res
Samsung Odyssey G51C S27CG51 ClearType Off

Panel Type 
 

IPS
VA

Pixels 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Pixels
Compare High-Res
Samsung Odyssey G51C S27CG51 Pixels

Subpixel Layout 
 

RGB
RGB
Show Text 

Direct Reflections 
 

6.5
6.5

Ring Light Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Ring Light Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Ring Light Picture

Direct Reflections Graph  

 Preview Graph
LG 27GP850-B/27GP83B-B Direct Reflections Graph
 Preview Graph
Samsung Odyssey G51C S27CG51 Direct Reflections Graph
 Compare in Graph Tool

Peak Direct Reflection Intensity 
 

30.7%
31.6%

Screen Finish 
 

Matte
Matte
Show Text 

Ambient Black Level Raise 
 

8.4
7.1

Black Level Raise Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Black Level Raise Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Black Level Raise Picture

Ambient Black Level Raise Graph  

 Preview Graph
LG 27GP850-B/27GP83B-B Ambient Black Level Raise Graph
 Preview Graph
Samsung Odyssey G51C S27CG51 Ambient Black Level Raise Graph
 Compare in Graph Tool

Black Luminance @ 0 lx 
 

0.43 cd/m²
0.10 cd/m²

Black Luminance @ 1000 lx 
 

0.73 cd/m²
1.51 cd/m²
Show Text 

Total Reflected Light 
 

5.9
5.6

Bright Room Off Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Bright Room Off Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Bright Room Off Picture

Total Reflection Ring Light Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Total Reflection Ring Light Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Total Reflection Ring Light Picture

Total Reflected Light Intensity 
 

32,808% ⋅ pixel
37,005% ⋅ pixel

Diffraction Artifacts 
 

No
No
Show Text 

Gradient 
 

9.6
9.3

Gradient Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Gradient Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Gradient Picture

Color Depth 
 

10 Bit
10 Bit
Show Text 
Motion

Refresh Rate 
 

7.7
7.5

Native Refresh Rate 
 

165 Hz
165 Hz

Max Refresh Rate 
 

180 Hz
165 Hz

Max Refresh Rate Over DP 
 

180 Hz
165 Hz

Max Refresh Rate Over HDMI 
 

144 Hz
144 Hz

Max Refresh Rate Over DP @ 10-bit 
 

180 Hz
120 Hz

Max Refresh Rate Over HDMI @ 10-Bit 
 

60 Hz
60 Hz

DSC Toggle 
 

No
No

DSC Off Max Refresh Rate Over DP 
 

N/A
N/A

DSC Off Max Refresh Rate Over HDMI 
 

N/A
N/A
Show Text 

Variable Refresh Rate (VRR) 
 

Variable Refresh Rate 
 

Yes
Yes

FreeSync 
 

Yes
Yes

G-SYNC 
 

Compatible (NVIDIA Certified)
Compatible (Tested)

VRR Maximum 
 

180 Hz
165 Hz

VRR Minimum 
 

< 20 Hz
< 20 Hz

VRR Supported Connectors 
 

DisplayPort, HDMI
DisplayPort, HDMI
Show Text 

VRR Motion Performance 
 

8.2
6.2

Pursuit Photo VRR 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Pursuit Photo VRR
Compare High-Res
Samsung Odyssey G51C S27CG51 Pursuit Photo VRR

OD Mode CAD Comparison  

 Preview Graph
LG 27GP850-B/27GP83B-B OD Mode CAD Comparison
 Preview Graph
Samsung Odyssey G51C S27CG51 OD Mode CAD Comparison
 Compare in Graph Tool

Recommended VRR OD Setting 
 

Normal
FreeSync Premium (Extreme)

Variable Overdrive Advertised 
 

No
No

Avg. CAD 
 

151
270

Best CAD 
 

150
229

Worst CAD 
 

152
382
Show Text 

Refresh Rate Compliance 
 

7.9
6.8

Fast GTG Sequence  

 Preview Graph
LG 27GP850-B/27GP83B-B Fast GTG Sequence
 Preview Graph
Samsung Odyssey G51C S27CG51 Fast GTG Sequence
 Compare in Graph Tool

VRR Compliance  

 Preview Graph
LG 27GP850-B/27GP83B-B VRR Compliance
 Preview Graph
Samsung Odyssey G51C S27CG51 VRR Compliance
 Compare in Graph Tool

Compliance @ Max Hz 
 

52%
46%

Compliance @ 120 FPS 
 

65%
54%

Compliance @ 60 FPS 
 

82%
69%
Show Text 

CAD @ Max Refresh Rate 
 

8.2
6.2

Pursuit Photo At Max Refresh 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Pursuit Photo At Max Refresh
Compare High-Res
Samsung Odyssey G51C S27CG51 Pursuit Photo At Max Refresh

CAD Heatmap At Max Refresh 
 

Compare High-Res
LG 27GP850-B/27GP83B-B CAD Heatmap At Max Refresh
Compare High-Res
Samsung Odyssey G51C S27CG51 CAD Heatmap At Max Refresh

OD Transition Max Refresh Rate 
 

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

Recommended Overdrive Setting 
 

Fast
FreeSync (Extreme)

Avg. CAD 
 

131
230

Best 10% CAD 
 

66
89

Worst 10% CAD 
 

221
558
Show Text 

Response Time @ Max Refresh Rate 
 

First Response Time 
 

4.7 ms
9.7 ms

Total Response Time 
 

5.5 ms
11.5 ms

Recommended Overdrive Setting 
 

Fast
FreeSync (Extreme)

RGB Overshoot 
 

1 RGB
3 RGB

Worst 10% RGB Overshoot 
 

6 RGB
11 RGB

Worst 10% First Response Time 
 

9.7 ms
25.7 ms

Worst 10% Total Response Time 
 

9.7 ms
25.7 ms

Heatmap First Response 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Heatmap First Response
Compare High-Res
Samsung Odyssey G51C S27CG51 Heatmap First Response

Heatmap Total Response 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Heatmap Total Response
Compare High-Res
Samsung Odyssey G51C S27CG51 Heatmap Total Response

Heatmap RGB Overshoot 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Heatmap RGB Overshoot
Compare High-Res
Samsung Odyssey G51C S27CG51 Heatmap RGB Overshoot
Show Text 

CAD @ 120Hz 
 

8.0
6.4

Pursuit Photo 120Hz 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Pursuit Photo 120Hz
Compare High-Res
Samsung Odyssey G51C S27CG51 Pursuit Photo 120Hz

CAD Heatmap 120Hz 
 

Compare High-Res
LG 27GP850-B/27GP83B-B CAD Heatmap 120Hz
Compare High-Res
Samsung Odyssey G51C S27CG51 CAD Heatmap 120Hz

OD Transition 120Hz 
 

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

Recommended Overdrive Setting 
 

Fast
FreeSync (Extreme)

Avg. CAD 
 

142
237

Best 10% CAD 
 

88
110

Worst 10% CAD 
 

211
473
Show Text 

Response Time @ 120Hz 
 

Worst 10% First Response Time 
 

6.8 ms
23.1 ms

RGB Overshoot 
 

7 RGB
5 RGB

Total Response Time 
 

9.6 ms
12.1 ms

First Response Time 
 

4.2 ms
7.8 ms

Recommended Overdrive Setting 
 

Fast
FreeSync (Extreme)

Worst 10% Total Response Time 
 

11.7 ms
23.1 ms

Worst 10% RGB Overshoot 
 

10 RGB
13 RGB

120Hz First Response Heatmap 
 

Compare High-Res
LG 27GP850-B/27GP83B-B 120Hz First Response Heatmap
Compare High-Res
Samsung Odyssey G51C S27CG51 120Hz First Response Heatmap

120Hz Total Response Heatmap 
 

Compare High-Res
LG 27GP850-B/27GP83B-B 120Hz Total Response Heatmap
Compare High-Res
Samsung Odyssey G51C S27CG51 120Hz Total Response Heatmap

120Hz Heatmap RGB Overshoot 
 

Compare High-Res
LG 27GP850-B/27GP83B-B 120Hz Heatmap RGB Overshoot
Compare High-Res
Samsung Odyssey G51C S27CG51 120Hz Heatmap RGB Overshoot
Show Text 

CAD @ 60Hz 
 

8.0
5.3

Pursuit Photo 60Hz 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Pursuit Photo 60Hz
Compare High-Res
Samsung Odyssey G51C S27CG51 Pursuit Photo 60Hz

CAD Heatmap 60Hz 
 

Compare High-Res
LG 27GP850-B/27GP83B-B CAD Heatmap 60Hz
Compare High-Res
Samsung Odyssey G51C S27CG51 CAD Heatmap 60Hz

OD Transition 60Hz 
 

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

Recommended Overdrive Setting 
 

Normal
FreeSync (Faster)

Avg. CAD 
 

147
310

Best 10% CAD 
 

79
144

Worst 10% CAD 
 

227
624
Show Text 

Response Time @ 60Hz 
 

Recommended Overdrive Setting 
 

Normal
FreeSync (Faster)

First Response Time 
 

5.6 ms
8.6 ms

Total Response Time 
 

6.7 ms
18.2 ms

RGB Overshoot 
 

1 RGB
6 RGB

Worst 10% Total Response Time 
 

17.6 ms
28.5 ms

Worst 10% First Response Time 
 

8.3 ms
20.8 ms

Worst 10% RGB Overshoot 
 

6 RGB
18 RGB

60Hz First Response Heatmap 
 

Compare High-Res
LG 27GP850-B/27GP83B-B 60Hz First Response Heatmap
Compare High-Res
Samsung Odyssey G51C S27CG51 60Hz First Response Heatmap

60Hz Total Response Heatmap 
 

Compare High-Res
LG 27GP850-B/27GP83B-B 60Hz Total Response Heatmap
Compare High-Res
Samsung Odyssey G51C S27CG51 60Hz Total Response Heatmap

60Hz RGB Overshoot Heatmap 
 

Compare High-Res
LG 27GP850-B/27GP83B-B 60Hz RGB Overshoot Heatmap
Compare High-Res
Samsung Odyssey G51C S27CG51 60Hz RGB Overshoot Heatmap
Show Text 

Backlight Strobing (BFI) 
 

Backlight Strobing Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Backlight Strobing Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Backlight Strobing Picture

Backlight Strobing Frequency Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Backlight Strobing Frequency Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Backlight Strobing Frequency Picture

Backlight Strobing (BFI) 
 

Yes
Yes

Maximum Frequency 
 

165 Hz
165 Hz

Minimum Frequency 
 

120 Hz
120 Hz

Longest Pulse Width Brightness 
 

136 cd/m²
54 cd/m²

Shortest Pulse Width Brightness 
 

136 cd/m²
54 cd/m²

Pulse Width Control 
 

No
No

Pulse Phase Control 
 

No
No

Pulse Amplitude Control 
 

Yes
No

VRR At The Same Time 
 

No
No
Show Text 

VRR Flicker 
 

8.2
7.6

VRR Flicker Video  

VRR Flicker Graph 
 

Compare High-Res
LG 27GP850-B/27GP83B-B VRR Flicker Graph
Compare High-Res
Samsung Odyssey G51C S27CG51 VRR Flicker Graph

Dark Gray Flicker 
 

1.0 RGB
1.7 RGB

Middle Gray Flicker 
 

1.8 RGB
1.9 RGB

Light Gray Flicker 
 

1.8 RGB
1.6 RGB
Show Text 

Image Flicker 
 

10
10

Backlight Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Backlight Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 Backlight Picture

Flicker-Free 
 

Yes
Yes

PWM Dimming Frequency 
 

0 Hz
0 Hz
Show Text 
Inputs

Input Lag 
 

9.0
8.8

Native Resolution @ Max Hz 
 

3.6 ms
4.6 ms

Native Resolution @ 120Hz 
 

4.9 ms
5.8 ms

Native Resolution @ 60Hz 
 

9.1 ms
9.9 ms

Backlight Strobing (BFI) 
 

4.4 ms
7.9 ms
Show Text 

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 
 

Compare High-Res
LG 27GP850-B/27GP83B-B PS5 Compatibility Photo
Compare High-Res
Samsung Odyssey G51C S27CG51 PS5 Compatibility Photo

PS5 Compatibility Table 
 

Compare High-Res
LG 27GP850-B/27GP83B-B PS5 Compatibility Table
Compare High-Res
Samsung Odyssey G51C S27CG51 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
Show Text 

Xbox Series X|S Compatibility 
 

7.1
6.6

XSX Compatibility Photo 
 

Compare High-Res
LG 27GP850-B/27GP83B-B XSX Compatibility Photo
Compare High-Res
Samsung Odyssey G51C S27CG51 XSX Compatibility Photo

XSX Compatibility Table 
 

Compare High-Res
LG 27GP850-B/27GP83B-B XSX Compatibility Table
Compare High-Res
Samsung Odyssey G51C S27CG51 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
Show Text 

Inputs 
 

Inputs 1 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Inputs 1
Compare High-Res
Samsung Odyssey G51C S27CG51 Inputs 1

Inputs 2 
 

Compare High-Res
LG 27GP850-B/27GP83B-B Inputs 2
Compare High-Res
Samsung Odyssey G51C S27CG51 Inputs 2

DisplayPort 
 

1 (DP 1.4)
1 (DP 1.2)

DisplayPort Transmission Bandwidth 
 

No DisplayPort 2.1
No DisplayPort 2.1

Mini DisplayPort 
 

No
No

HDMI 
 

2 (HDMI 2.0)
2 (HDMI 2.0)

HDMI 2.1 Bandwidth 
 

No HDMI 2.1
No HDMI 2.1

Daisy Chaining 
 

No
No

3.5mm Audio Out 
 

Yes
Yes

Ethernet 
 

No
No

HDR10 
 

Yes
Yes

Dolby Vision 
 

No
No
Show Text 

USB 
 

USB-A Ports 
 

2
1 (Service Port Only)

USB-A Rated Speed 
 

5Gbps (USB 3.2 Gen 1)
480Mbps (USB 2.0)

USB-B Upstream Port 
 

Yes
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
Show Text 

macOS Compatibility 
 

macOS Screenshot 
 

Compare High-Res
LG 27GP850-B/27GP83B-B macOS Screenshot
Compare High-Res
Samsung Odyssey G51C S27CG51 macOS Screenshot
Show Text 
Features

Additional Features 
 

Speakers 
 

No
No

RGB Illumination 
 

No
No

Multiple Input Display 
 

No
No

KVM Switch 
 

No
No

Smart OS 
 

No
No
Show Text 

On-Screen Display (OSD) 
 

OSD Picture 
 

Compare High-Res
LG 27GP850-B/27GP83B-B OSD Picture
Compare High-Res
Samsung Odyssey G51C S27CG51 OSD Picture

Check Price

27"
27GP850-B
SEE PRICE
LG.com
27"
LS27CG512ENXZA
SEE PRICE
Samsung.com
27"
27GP83B-B
SEE PRICE
LG.com
27"
LS27CG512ENXZA
SEE PRICE
Amazon.com
 
27"
LS27CG512ENXZA
SEE PRICE
B&H
 
27"
LS27CG512ENXZA
SEE PRICE
BestBuy.com
 
27"
LS27CG512ENXZA
SEE PRICE
Walmart.com
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LG 27GP850-B/27GP83B-B

Samsung Odyssey G51C S27CG51

Comments

  1. Comparison
 • Posted 1 year ago

LG 27GP850-B/27GP83B-B vs Samsung Odyssey G51C S27CG51: Main Discussion

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