Products
LG 34GN850-B
Samsung Odyssey G55T C34G55T
Tested using Methodology v1.2
Updated Jun 13, 2025 08:49 PM
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Amazon.com
Tested using Methodology v1.2
Updated Jun 13, 2025 08:53 PM
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Amazon.com
Max Refresh Rate
160 Hz
Size
34"
Pixel Type
IPS
Variable Refresh Rate
Yes
HDR10
Yes
Native Resolution
3440 x 1440
Max Refresh Rate
165 Hz
Size
34"
Pixel Type
VA
Variable Refresh Rate
Yes
HDR10
Yes
Native Resolution
3440 x 1440
Our Verdict
LG 34GN850-B
Samsung Odyssey G55T C34G55T
The LG 34GN850-B is better overall than the Samsung Odyssey G55T C34G55T, but they have different panel types. The LG has an IPS panel with wide viewing angles, while the Samsung has a VA panel with a higher contrast ratio. The LG is a bit better for gaming because it has a much quicker response time that results in smoother motion, and it gets brighter overall than the Samsung, making it a better choice for HDR gaming.
Variants
- 34GN850-B (34")
- LC34G55TWWNXZA (34")
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34"
34GN850-B
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34"
LC34G55TWWNXZA
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34"
34GN850-B
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34"
LC34G55TWWNXZA
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34"
34GN850-B
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34"
LC34G55TWWNXZA
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34"
34GN850-B
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34"
LC34G55TWWNXZA
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34GN850-B
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Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
7.8
7.3
Ergonomics
5.9
1.7
Vertical Viewing Angle
7.5
5.2
Contrast
5.9
8.6
Response Time @ Max Refresh Rate
9.2
6.3
Full Comparison
Design
Style
Design Picture
Curved
Yes
Yes
Curve Radius
1900R
1000R
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.0
7.0
Build Quality Picture
Ergonomics
5.9
1.7
Ergonomics Picture
Back Picture
Height Adjustment
4.3" (11.0 cm)
0.0" (0.0 cm)
Tilt Range
-15° to 5°
-17.5° to 2.5°
Rotate Portrait/Landscape
No
No
Swivel Range
No swivel
No swivel
Wall Mount
VESA 100x100
VESA 75x75
Stand
Stand Picture
Thickness Picture
Base Width
17.8" (45.3 cm)
21.5" (54.7 cm)
Base Depth
12.2" (31.0 cm)
10.7" (27.3 cm)
Thickness (With Display)
10.4" (26.5 cm)
10.2" (26.0 cm)
Weight (With Display)
17.1 lbs (7.8 kg)
12.3 lbs (5.6 kg)
Display
Display Picture
Size
34"
34"
Housing Width
32.2" (81.9 cm)
31.8" (80.8 cm)
Housing Height
14.2" (36.1 cm)
14.9" (37.8 cm)
Thickness (Without Stand)
4.3" (10.9 cm)
5.8" (14.7 cm)
Weight (Without Stand)
12.4 lbs (5.6 kg)
11.5 lbs (5.2 kg)
Borders Size (Bezels)
0.4" (1.0 cm)
0.5" (1.2 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
External Brick
External Brick
Picture Quality
Contrast
5.9
8.6
Checkerboard Picture
Native Contrast
960 : 1
4,557 : 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
8.0
7.3
Real Scene
343 cd/m²
275 cd/m²
Peak 2% Window
354 cd/m²
295 cd/m²
Peak 10% Window
358 cd/m²
296 cd/m²
Peak 25% Window
359 cd/m²
296 cd/m²
Peak 50% Window
359 cd/m²
296 cd/m²
Peak 100% Window
359 cd/m²
296 cd/m²
Sustained 2% Window
354 cd/m²
295 cd/m²
Sustained 10% Window
358 cd/m²
296 cd/m²
Sustained 25% Window
359 cd/m²
296 cd/m²
Sustained 50% Window
359 cd/m²
296 cd/m²
Sustained 100% Window
359 cd/m²
296 cd/m²
Automatic Brightness Limiting (ABL)
0.001
0.000
Minimum Brightness
58 cd/m²
53 cd/m²
HDR Brightness
6.9
6.1
EOTF
VESA DisplayHDR Certification
DisplayHDR 400 - 1.0/1.1
No Certification
Real Scene
441 cd/m²
295 cd/m²
Peak 2% Window
436 cd/m²
322 cd/m²
Peak 10% Window
436 cd/m²
331 cd/m²
Peak 25% Window
436 cd/m²
332 cd/m²
Peak 50% Window
436 cd/m²
332 cd/m²
Peak 100% Window
436 cd/m²
332 cd/m²
Sustained 2% Window
435 cd/m²
322 cd/m²
Sustained 10% Window
436 cd/m²
331 cd/m²
Sustained 25% Window
436 cd/m²
331 cd/m²
Sustained 50% Window
436 cd/m²
332 cd/m²
Sustained 100% Window
436 cd/m²
332 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.002
Horizontal Viewing Angle
7.0
5.7
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
43°
31°
Color Washout From Right
42°
33°
Horizontal Hue Graph
Color Shift From Left
55°
52°
Color Shift From Right
54°
52°
Horizontal Lightness Graph
Brightness Loss From Left
47°
30°
Brightness Loss From Right
48°
31°
Black Level Raise From Left
26°
19°
Black Level Raise From Right
20°
20°
Gamma Shift From Left
37°
11°
Gamma Shift From Right
31°
13°
Vertical Viewing Angle
7.5
5.2
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
33°
28°
Color Washout From Above
32°
28°
Vertical Hue Graph
Color Shift From Below
46°
45°
Color Shift From Above
58°
41°
Vertical Lightness Graph
Brightness Loss From Below
36°
29°
Brightness Loss From Above
34°
28°
Black Level Raise From Below
70°
9°
Black Level Raise From Above
70°
8°
Gamma Shift From Below
44°
13°
Gamma Shift From Above
41°
12°
Gray Uniformity
8.1
8.1
50% Uniformity Picture
50% Std. Dev.
2.733%
2.161%
50% DSE
0.144%
0.151%
Black Uniformity
6.6
6.7
Native Black Uniformity Picture
Native Std. Dev.
1.613%
1.527%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
8.7
8.5
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
sRGB
Custom
sRGB Gamut Area xy
100.8%
105.1%
White Balance dE (Avg.)
3.28
2.28
Color Temperature (Avg.)
6,953 K
7,058 K
Gamma (Avg.)
2.20
2.15
Color dE (Avg.)
1.92
1.72
Contrast Setting
70
75
RGB Settings
Default
50-50-50
Gamma Setting
Default
Mode 1
Brightness Setting
45
52
Measured Brightness
196 cd/m²
204 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.8
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Gamer 1
Custom
sRGB Gamut Area xy
100.6%
98.1%
White Balance dE (Avg.)
0.63
0.38
Color Temperature (Avg.)
6,521 K
6,487 K
Gamma (Avg.)
2.18
2.19
Color dE (Avg.)
0.30
0.60
Contrast Setting
70
75
RGB Settings
50-49-48
50-46-45
Gamma Setting
Mode 2
Mode 1
Brightness Setting
14
16
Measured Brightness
100 cd/m²
100 cd/m²
SDR Color Gamut
9.4
9.1
sRGB Color Gamut Picture
sRGB Coverage xy
99.0%
98.7%
sRGB Picture Mode
Gamer 1
Custom
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
86.6%
77.5%
Adobe RGB Picture Mode
Gamer 1
Custom
SDR Color Volume
9.6
9.6
sRGB Color Volume ITP Picture
sRGB In ICtCp
97.4%
98.6%
sRGB Picture Mode
Gamer 1
Custom
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
91.5%
83.4%
Adobe RGB Picture Mode
Gamer 1
Custom
HDR Color Gamut
8.7
6.2
Wide Color Gamut
Yes
No
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
94.5%
77.3%
DCI-P3 Picture Mode
Gamer 1
HDR On
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
71.6%
55.5%
Rec. 2020 Picture Mode
Gamer 1
HDR On
HDR Color Volume
7.6
6.8
DCI-P3 Color Volume ITP Picture
DCI-P3 In ICtCp
78.4%
70.1%
DCI-P3 Picture Mode
Gamer 1
HDR On
Rec. 2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
62.2%
50.6%
Rec. 2020 Picture Mode
Gamer 1
HDR On
Reflections
7.4
7.6
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
5.6%
5.2%
Indirect Reflections
3.3%
3.2%
Calculated Direct Reflections
2.3%
2.0%
Text Clarity
7.5
7.5
ClearType On
ClearType Off
Pixel Type
IPS
VA
Pixels
Subpixel Layout
RGB
RGB
Gradient
9.9
9.8
Gradient Picture
Color Depth
10 Bit
10 Bit
Motion
Refresh Rate
8.5
8.5
Native Refresh Rate
144 Hz
165 Hz
Max Refresh Rate
160 Hz
165 Hz
Max Refresh Rate Over DP
160 Hz
165 Hz
Max Refresh Rate Over HDMI
85 Hz
100 Hz
Max Refresh Rate Over DP @ 10-bit
144 Hz
100 Hz
Max Refresh Rate Over HDMI @ 10-Bit
50 Hz
60 Hz
Variable Refresh Rate (VRR)
FreeSync
Yes
Yes
G-SYNC
Compatible (NVIDIA Certified)
Compatible (Tested)
VRR Maximum
160 Hz
165 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort
Variable Refresh Rate
Yes
Yes
Response Time @ Max Refresh Rate
9.2
6.3
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
FreeSync On
Rise / Fall Time
3.4 ms
6.7 ms
Total Response Time
6.2 ms
16.4 ms
Overshoot Error
1.0%
0.2%
Worst 3 Rise / Fall Time
4.2 ms
19.4 ms
Worst 3 Total Response Time
8.8 ms
37.6 ms
Worst 3 Overshoot Error
8.7%
1.6%
Response Time @ 120Hz
8.7
6.6
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
FreeSync On
Rise / Fall Time
3.8 ms
6.4 ms
Total Response Time
7.9 ms
14.8 ms
Overshoot Error
2.0%
0.6%
Worst 3 Rise / Fall Time
4.6 ms
17.5 ms
Worst 3 Total Response Time
12.9 ms
36.5 ms
Worst 3 Overshoot Error
13.5%
4.3%
Response Time @ 60Hz
7.9
6.0
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
FreeSync On
Rise / Fall Time
3.5 ms
6.0 ms
Total Response Time
13.9 ms
22.1 ms
Overshoot Error
4.2%
3.0%
Worst 3 Rise / Fall Time
4.1 ms
12.3 ms
Worst 3 Total Response Time
22.5 ms
35.2 ms
Worst 3 Overshoot Error
20.5%
10.9%
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
No BFI
Yes
Maximum Frequency
N/A
165 Hz
Minimum Frequency
N/A
165 Hz
Longest Pulse Width Brightness
N/A
129 cd/m²
Shortest Pulse Width Brightness
N/A
129 cd/m²
Pulse Width Control
No BFI
No
Pulse Phase Control
No BFI
No
Pulse Amplitude Control
No BFI
No
VRR At The Same Time
No BFI
No
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
9.0
8.8
Native Resolution @ Max Hz
3.7 ms
4.0 ms
Native Resolution @ 120Hz
4.8 ms
5.6 ms
Native Resolution @ 60Hz
9.2 ms
9.4 ms
Backlight Strobing (BFI)
N/A
9.5 ms
Resolution And Size
8.4
8.4
Native Resolution
3440 x 1440
3440 x 1440
Aspect Ratio
21:9
21:9
Megapixels
5.0 MP
5.0 MP
Pixel Density
108 PPI
108 PPI
Measured Screen Diagonal
34.0"
34.0"
Screen Area
418 in²
418 in²
PS5 Compatibility
7.0
6.0
PS5 Compatibility Photo
4k @ 120Hz
No
No
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
No
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
No
1080p @ 60Hz
Yes
Yes
HDR
Yes
Yes
VRR
No
No
Xbox Series X|S Compatibility
9.2
6.7
XSX Compatibility Photo
4k @ 120Hz
No
No
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
No
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
Yes
Yes
VRR
Yes
No
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.4)
1 (DP 1.4)
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
1 (HDMI 2.0)
HDMI 2.1 Rated Speed
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
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
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
No
No
RGB Illumination
No
No
Multiple Input Display
No
PBP
KVM Switch
No
No
On-Screen Display (OSD)
OSD Picture
Check Price
34"
34GN850-B
SEE PRICE
Amazon.com
34"
LC34G55TWWNXZA
SEE PRICE
Amazon.com
34"
34GN850-B
SEE PRICE
LG.com
34"
LC34G55TWWNXZA
SEE PRICE
BestBuy.com
34"
34GN850-B
SEE PRICE
BestBuy.com
34"
LC34G55TWWNXZA
SEE PRICE
Samsung.com
34"
34GN850-B
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Walmart.com
34"
LC34G55TWWNXZA
SEE PRICE
Walmart.com
34"
34GN850-B
SEARCH
B&H
34"
LC34G55TWWNXZA
SEE PRICE
B&H
LG 34GN850-B
Samsung Odyssey G55T C34G55T
Comments
LG 34GN850-B vs Samsung Odyssey G55T C34G55T: Main Discussion
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