Products
LG 27GN800-B
Samsung Odyssey G50D S27DG50
Tested using Methodology v1.2
Updated Aug 28, 2025 04:57 PM
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Amazon.com
Tested using Methodology v2.1.1
Updated Nov 07, 2025 02:19 PM
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Amazon.com
Max Refresh Rate
144 Hz
Size
27"
Pixel Type
IPS
Native Resolution
2560 x 1440
Variable Refresh Rate
Yes
HDR10
Yes
Max Refresh Rate
180 Hz
Size
27"
Pixel Type
IPS
Native Resolution
2560 x 1440
Variable Refresh Rate
Yes
HDR10
Yes
Our Verdict
LG 27GN800-B
Samsung Odyssey G50D S27DG50
The LG 27GN800-B and the Samsung Odyssey G50D S27DG50 are similar 1440p gaming monitors. The Samsung is a bit more polished because it has a higher refresh rate, gets brighter, and has more accurate colors before any sort of calibration. The Samsung also comes with a much more ergonomic stand, making it easier to adjust.
Variants
- 27GN800-B (27")
- LS27DG500ENXZA (27")
Check Price
27"
27GN800-B
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Amazon.com
27"
LS27DG500ENXZA
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Amazon.com
27"
27GN800-B
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LG.com
27"
LS27DG500ENXZA
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BestBuy.com
27"
27GN800-B
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Walmart.com
27"
LS27DG500ENXZA
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Samsung.com
27"
27GN800-B
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BestBuy.com
27"
LS27DG500ENXZA
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Walmart.com
27"
27GN800-B
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B&H
27"
LS27DG500ENXZA
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Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
7.4
Full Comparison
Design
Style
Design Picture
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Curved
No
No
Curve Radius
Not Curved
Not Curved
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.0
7.0
Build Quality Picture
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Ergonomics
1.5
9.3
Ergonomics Picture
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Back Picture
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Height Adjustment
0.0" (0.0 cm)
4.7" (12.0 cm)
Min Height To Top Of Panel
16.6" (42.2 cm)
Tilt Range
-15° to 2.5°
-25° to 2.5°
Rotate Portrait/Landscape
No
Yes, Both Ways
Swivel Range
No swivel
-30° to 30°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
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Thickness Picture
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Base Width
18.6" (47.3 cm)
11.7" (29.7 cm)
Base Depth
9.3" (23.5 cm)
9.8" (25.0 cm)
Thickness (With Display)
6.0" (15.2 cm)
7.3" (18.5 cm)
Weight (With Display)
13.4 lbs (6.1 kg)
14.3 lbs (6.5 kg)
Display
Display Picture
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Size
27"
27"
Housing Width
24.2" (61.5 cm)
24.2" (61.4 cm)
Housing Height
14.4" (36.5 cm)
14.5" (36.9 cm)
Thickness (Without Stand)
3.0" (7.5 cm)
1.6" (4.0 cm)
Weight (Without Stand)
11.9 lbs (5.4 kg)
7.4 lbs (3.4 kg)
Borders Size (Bezels)
0.3" (0.8 cm)
0.3" (0.8 cm)
Controls
Controls Picture
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In The Box
In The Box Picture
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Power Supply
External Brick
External Brick
Picture Quality
Contrast
5.7
6.3
Checkerboard Picture
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Native Contrast
841 : 1
1,221 : 1
Contrast With Local Dimming
N/A
1,239 : 1
Local Dimming
0.0
2.5
Local Dimming Video
Local Dimming
No
Yes
Backlight
Edge
Edge
SDR Brightness
7.6
8.3
Real Scene
304 cd/m²
404 cd/m²
Peak 2% Window
328 cd/m²
429 cd/m²
Peak 10% Window
329 cd/m²
428 cd/m²
Peak 25% Window
329 cd/m²
428 cd/m²
Peak 50% Window
330 cd/m²
427 cd/m²
Peak 100% Window
330 cd/m²
427 cd/m²
Sustained 2% Window
328 cd/m²
428 cd/m²
Sustained 10% Window
329 cd/m²
427 cd/m²
Sustained 25% Window
329 cd/m²
427 cd/m²
Sustained 50% Window
330 cd/m²
426 cd/m²
Sustained 100% Window
329 cd/m²
426 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.000
Minimum Brightness
55 cd/m²
58 cd/m²
HDR Brightness
6.4
6.9
EOTF
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VESA DisplayHDR Certification
No Certification
DisplayHDR 400 - 1.0/1.1
Real Scene
346 cd/m²
415 cd/m²
Peak 2% Window
371 cd/m²
431 cd/m²
Peak 10% Window
373 cd/m²
431 cd/m²
Peak 25% Window
372 cd/m²
432 cd/m²
Peak 50% Window
373 cd/m²
431 cd/m²
Peak 100% Window
372 cd/m²
432 cd/m²
Sustained 2% Window
371 cd/m²
430 cd/m²
Sustained 10% Window
372 cd/m²
431 cd/m²
Sustained 25% Window
372 cd/m²
431 cd/m²
Sustained 50% Window
372 cd/m²
431 cd/m²
Sustained 100% Window
372 cd/m²
432 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.000
Gray Uniformity
7.7
7.1
50% Uniformity Picture
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50% Std. Dev.
4.072%
5.117%
50% DSE
0.145%
0.169%
Black Uniformity
4.5
6.3
Native Black Uniformity Picture
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Native Std. Dev.
3.033%
1.645%
Black Uniformity Picture With Local Dimming
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Std. Dev. w/ L.D.
N/A
2.407%
Color Accuracy (Pre-Calibration)
5.4
8.5
Pre Calibration Picture
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Pre Gamma Curve Picture
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Pre Color Picture
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Picture Mode
Gamer 1
Custom
sRGB Gamut Area xy
129.7%
101.1%
White Balance dE (Avg.)
5.39
2.92
Color Temperature (Avg.)
6,969 K
7,054 K
Gamma (Avg.)
2.13
2.26
Color dE (Avg.)
4.85
3.06
Contrast Setting
70
50
RGB Settings
50-50-50
0-0-0
Gamma Setting
Mode 2
0
Brightness Setting
59
50
Measured Brightness
195 cd/m²
441 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.7
8.4
Post Calibration Picture
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Post Gamma Curve Picture
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Post Color Picture
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Picture Mode
Gamer 1
Custom
sRGB Gamut Area xy
100.7%
90.1%
White Balance dE (Avg.)
0.74
0.67
Color Temperature (Avg.)
6,469 K
6,510 K
Gamma (Avg.)
2.17
2.17
Color dE (Avg.)
0.41
1.70
Contrast Setting
70
50
RGB Settings
48-50-47
-1,-2,-9
Gamma Setting
Mode 2
0
Brightness Setting
15
6
Measured Brightness
101 cd/m²
104 cd/m²
SDR Color Gamut
9.6
9.3
sRGB Color Gamut Picture
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sRGB Coverage xy
100.0%
99.1%
sRGB Picture Mode
Gamer 1
Custom
Adobe RGB Color Gamut Picture
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Adobe RGB Coverage xy
89.4%
79.7%
Adobe RGB Picture Mode
Gamer 1
Custom
HDR Color Gamut
8.5
7.1
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
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DCI-P3 Coverage xy
93.2%
84.1%
DCI-P3 Picture Mode
Gamer 2
Custom
Rec. 2020 Color Gamut Picture
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Rec. 2020 Coverage xy
67.6%
60.7%
Rec. 2020 Picture Mode
Gamer 2
Custom
HDR Color Volume
7.4
7.1
DCI-P3 Color Volume ITP Picture
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1,000 cd/m² DCI-P3 Coverage ICtCp
76.4%
61.1%
DCI-P3 Picture Mode
Gamer 2
Custom
Rec. 2020 Color Volume ITP Picture
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10,000 cd/m² Rec. 2020 Coverage ICtCp
57.0%
26.9%
Rec. 2020 Picture Mode
Gamer 2
Custom
Viewing Angle
8.5
7.6
Viewing Angle Video
Chroma Graph
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Color Washout From Left
50°
34°
Color Washout From Right
47°
39°
Hue Graph
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Color Shift From Left
56°
47°
Color Shift From Right
55°
57°
Lightness Graph
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Brightness Loss From Left
50°
40°
Brightness Loss From Right
49°
44°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
58°
37°
Gamma Shift From Right
57°
37°
Text Clarity
7.0
7.5
ClearType On
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ClearType Off
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Pixel Type
IPS
IPS
Pixels
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Subpixel Layout
RGB
RGB
Direct Reflections
7.5
Ring Light Picture
Direct Reflections Graph
Peak Direct Reflection Intensity
20.4%
Screen Finish
Matte
Matte
Ambient Black Level Raise
6.8
Black Level Raise Picture
Ambient Black Level Raise Graph
Black Luminance @ 0 lx
0.33 cd/m²
Black Luminance @ 1000 lx
1.68 cd/m²
Total Reflected Light
6.6
Bright Room Off Picture
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Total Reflection Ring Light Picture
Total Reflected Light Intensity
25,911% ⋅ pixel
Diffraction Artifacts
No
Gradient
9.8
9.8
Gradient Picture
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Color Depth
10 Bit
10 Bit
Vertical Viewing Angle
6.6
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
31°
Color Washout From Above
31°
Vertical Hue Graph
Color Shift From Below
38°
Color Shift From Above
41°
Vertical Lightness Graph
Brightness Loss From Below
35°
Brightness Loss From Above
37°
Black Level Raise From Below
70°
Black Level Raise From Above
23°
Gamma Shift From Below
31°
Gamma Shift From Above
30°
SDR Color Volume
9.6
sRGB Color Volume ITP Picture
sRGB In ICtCp
97.1%
sRGB Picture Mode
Gamer 1
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
91.4%
Adobe RGB Picture Mode
Gamer 1
Reflections
8.2
Average Room
Average Room Off Picture
Bright Room Off Picture
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Screen Finish
Matte
Matte
Total Reflections
4.8%
Indirect Reflections
4.1%
Calculated Direct Reflections
0.7%
Motion
Refresh Rate
8.3
7.7
Native Refresh Rate
144 Hz
180 Hz
Max Refresh Rate
144 Hz
180 Hz
Max Refresh Rate Over DP
144 Hz
180 Hz
Max Refresh Rate Over HDMI
144 Hz
144 Hz
Max Refresh Rate Over DP @ 10-bit
144 Hz
120 Hz
Max Refresh Rate Over HDMI @ 10-Bit
60 Hz
60 Hz
DSC Toggle
No
DSC Off Max Refresh Rate Over DP
N/A
DSC Off Max Refresh Rate Over HDMI
N/A
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Yes
Yes
G-SYNC
Compatible (NVIDIA Certified)
Compatible (NVIDIA Certified)
VRR Maximum
144 Hz
180 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
VRR Motion Performance
7.2
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
Adaptive-Sync
Variable Overdrive Advertised
No
Avg. CAD
223
Best CAD
223
Worst CAD
224
Refresh Rate Compliance
7.0
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
39%
Compliance @ 120 FPS
53%
Compliance @ 60 FPS
74%
Response Time @ 60Hz
8.1
Motion Blur Picture
Response Time Table
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Recommended Overdrive Setting
Normal
Faster
Rise / Fall Time
3.3 ms
5.5 ms
Total Response Time
13.3 ms
7.2 ms
Overshoot Error
2.9%
3 RGB
Worst 3 Rise / Fall Time
4.1 ms
7.8 ms
Worst 3 Total Response Time
22.6 ms
12.5 ms
Worst 3 Overshoot Error
14.6%
17 RGB
CAD @ Max Refresh Rate
7.5
Pursuit Photo At Max Refresh
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CAD Heatmap At Max Refresh
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OD Transition Max Refresh Rate
OD adaptivesync
0 to 31
Recommended Overdrive Setting
Faster
Avg. CAD
174
Best 10% CAD
89
Worst 10% CAD
278
Response Time @ Max Refresh Rate
First Response Time
3.2 ms
6.9 ms
Total Response Time
6.1 ms
7.3 ms
Recommended Overdrive Setting
Normal
Faster
Motion Blur Picture
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RGB Overshoot
1.1%
1 RGB
Worst 10% RGB Overshoot
8.4%
9 RGB
Worst 10% First Response Time
4.1 ms
12.0 ms
Worst 10% Total Response Time
10.0 ms
12.0 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
Response Time Table
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CAD @ 120Hz
7.7
Pursuit Photo 120Hz
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CAD Heatmap 120Hz
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OD Transition 120Hz
OD adaptivesync
0 to 31
Recommended Overdrive Setting
Faster
Avg. CAD
172
Best 10% CAD
90
Worst 10% CAD
260
Response Time @ 120Hz
Worst 10% First Response Time
4.1 ms
8.2 ms
RGB Overshoot
1.8%
3 RGB
Total Response Time
7.2 ms
7.4 ms
First Response Time
3.2 ms
5.6 ms
Recommended Overdrive Setting
Normal
Faster
Worst 10% Total Response Time
12.2 ms
12.7 ms
Worst 10% RGB Overshoot
11.3%
17 RGB
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
Motion Blur Picture
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Response Time Table
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CAD @ 60Hz
7.7
Pursuit Photo 60Hz
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CAD Heatmap 60Hz
OD Transition 60Hz
OD adaptivesync
0 to 31
Recommended Overdrive Setting
Faster
Avg. CAD
169
Best 10% CAD
88
Worst 10% CAD
254
Response Time @ 60Hz
Recommended Overdrive Setting
Normal
Faster
First Response Time
3.3 ms
5.5 ms
Total Response Time
13.3 ms
7.2 ms
RGB Overshoot
2.9%
3 RGB
Worst 10% Total Response Time
22.6 ms
12.5 ms
Worst 10% First Response Time
4.1 ms
7.8 ms
Worst 10% RGB Overshoot
14.6%
17 RGB
60Hz First Response Heatmap
60Hz Total Response Heatmap
60Hz RGB Overshoot Heatmap
Backlight Strobing (BFI)
Backlight Strobing Picture
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Backlight Strobing Frequency Picture
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Backlight Strobing (BFI)
Yes
No BFI
Maximum Frequency
144 Hz
N/A
Minimum Frequency
120 Hz
N/A
Longest Pulse Width Brightness
172 cd/m²
N/A
Shortest Pulse Width Brightness
172 cd/m²
N/A
Pulse Width Control
No
No BFI
Pulse Phase Control
No
No BFI
Pulse Amplitude Control
Yes
No BFI
VRR At The Same Time
No
No BFI
VRR Flicker
9.6
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
0.3 RGB
Middle Gray Flicker
0.2 RGB
Light Gray Flicker
0.2 RGB
Image Flicker
10
10
Backlight Picture
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Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
8.9
8.8
Native Resolution @ Max Hz
4.0 ms
4.8 ms
Native Resolution @ 120Hz
4.8 ms
6.2 ms
Native Resolution @ 60Hz
8.9 ms
10.8 ms
Backlight Strobing (BFI)
7.4 ms
N/A
Resolution
8.0
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
Measured Screen Diagonal
27.0"
Screen Area
311 in²
PS5 Compatibility
7.0
4.9
PS5 Compatibility Photo
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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
HDR
Yes
VRR
No
Xbox Series X|S Compatibility
9.2
6.6
XSX Compatibility Photo
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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
HDR
Yes
VRR
Yes
Inputs Photos
Inputs 1
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Inputs 2
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Inputs
Inputs 1
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Inputs 2
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DisplayPort
1 (DP 1.4)
1 (DP 1.2)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
Mini DisplayPort
No
No
DVI
No
HDMI
2 (HDMI 2.0)
1 (HDMI 2.0)
VGA
No
HDMI 2.1 Bandwidth
No HDMI 2.1
No HDMI 2.1
Daisy Chaining
No
No
3.5mm Audio Out
1
Yes
3.5mm Audio In
No
3.5mm Microphone In
No
Ethernet
No
HDR10
Yes
Yes
Dolby Vision
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
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Features
Additional Features
Speakers
No
No
RGB Illumination
No
No
Multiple Input Display
No
No
KVM Switch
No
No
Smart OS
No
On-Screen Display (OSD)
OSD Picture
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Check Price
27"
27GN800-B
SEE PRICE
Amazon.com
27"
LS27DG500ENXZA
SEE PRICE
Amazon.com
27"
27GN800-B
SEE PRICE
LG.com
27"
LS27DG500ENXZA
SEE PRICE
BestBuy.com
27"
27GN800-B
SEE PRICE
Walmart.com
27"
LS27DG500ENXZA
SEE PRICE
Samsung.com
27"
27GN800-B
SEE PRICE
BestBuy.com
27"
LS27DG500ENXZA
SEE PRICE
Walmart.com
27"
27GN800-B
SEARCH
B&H
27"
LS27DG500ENXZA
SEE PRICE
B&H
LG 27GN800-B
Samsung Odyssey G50D S27DG50
Comments
LG 27GN800-B vs Samsung Odyssey G50D S27DG50: Main Discussion
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