Products
LG C2 42 OLED
Samsung 43 QN90B QLED
Tested using Methodology v1.2
Updated Jun 13, 2025 09:04 PM
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Tested using Methodology v1.2
Updated Jun 13, 2025 07:28 PM
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Amazon.com
Max Refresh Rate
120 Hz
Size
42"
Pixel Type
OLED
Variable Refresh Rate
Yes
HDR10
Yes
Native Resolution
3840 x 2160
Max Refresh Rate
144 Hz
Size
43"
Pixel Type
VA
Variable Refresh Rate
Yes
HDR10
Yes
Native Resolution
3840 x 2160
Our Verdict
LG C2 42 OLED
Samsung 43 QN90B QLED
The LG C2 42 OLED and the Samsung 43 QN90B QLED are both TVs we tested as monitors. They're both great for PC gaming, but the main difference is that the Samsung model has a slightly higher 144Hz refresh rate. They also have a few differences in picture quality as the LG is the better choice for dark room gaming thanks to its near-infinite contrast ratio, but the Samsung is better for well-lit rooms as it gets brighter.
Variants
- OLED42C2PUA (42")
- QN43QN90BAFXZA (43")
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42"
OLED42C2PUA
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43"
QN43QN90BAFXZA
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42"
OLED42C2PUA
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43"
QN43QN90BAFXZA
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42"
OLED42C2PUA
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43"
QN43QN90BAFXZA
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42"
OLED42C2PUA
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43"
QN43QN90BAFXZA
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42"
OLED42C2PUA
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43"
QN43QN90BAFXZA
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Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
8.3
7.7
SDR Brightness
5.8
8.8
Vertical Viewing Angle
8.9
4.6
Horizontal Viewing Angle
8.5
5.0
Response Time @ Max Refresh Rate
9.8
6.8
Full Comparison
Design
Style
Design Picture
Curved
No
No
Curve Radius
Not Curved
Not Curved
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
9.0
9.0
Build Quality Picture
Ergonomics
0.0
0.0
Ergonomics Picture
Back Picture
Height Adjustment
0.0" (0.0 cm)
0.0" (0.0 cm)
Tilt Range
No Tilt
No Tilt
Rotate Portrait/Landscape
No
No
Swivel Range
No swivel
No swivel
Wall Mount
VESA 300x200
VESA 200x200
Stand
Stand Picture
Thickness Picture
Base Width
28.1" (71.5 cm)
18.3" (46.5 cm)
Base Depth
6.7" (16.9 cm)
8.9" (22.5 cm)
Thickness (With Display)
4.0" (10.1 cm)
6.4" (16.3 cm)
Weight (With Display)
19.4 lbs (8.8 kg)
31.2 lbs (14.2 kg)
Display
Display Picture
Size
42"
43"
Housing Width
36.7" (93.2 cm)
37.9" (96.3 cm)
Housing Height
21.3" (54.1 cm)
21.3" (54.1 cm)
Thickness (Without Stand)
1.5" (3.8 cm)
1.3" (3.3 cm)
Weight (Without Stand)
19.0 lbs (8.6 kg)
21.2 lbs (9.6 kg)
Borders Size (Bezels)
0.3" (0.7 cm)
0.4" (1.0 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
Internal
Internal
Picture Quality
Contrast
10
9.0
Checkerboard Picture
Native Contrast
Inf : 1
5,548 : 1
Contrast With Local Dimming
N/A
7,064 : 1
Local Dimming
10
7.5
Local Dimming Video
Local Dimming
No
Yes
Backlight
No Backlight
Full-Array
SDR Brightness
5.8
8.8
Real Scene
190 cd/m²
600 cd/m²
Peak 2% Window
182 cd/m²
604 cd/m²
Peak 10% Window
187 cd/m²
922 cd/m²
Peak 25% Window
188 cd/m²
1,029 cd/m²
Peak 50% Window
190 cd/m²
748 cd/m²
Peak 100% Window
182 cd/m²
570 cd/m²
Sustained 2% Window
172 cd/m²
600 cd/m²
Sustained 10% Window
178 cd/m²
912 cd/m²
Sustained 25% Window
181 cd/m²
1,018 cd/m²
Sustained 50% Window
184 cd/m²
746 cd/m²
Sustained 100% Window
177 cd/m²
569 cd/m²
Automatic Brightness Limiting (ABL)
0.003
0.035
Minimum Brightness
29 cd/m²
32 cd/m²
HDR Brightness
7.1
8.2
EOTF
VESA DisplayHDR Certification
No Certification
No Certification
Real Scene
575 cd/m²
761 cd/m²
Peak 2% Window
678 cd/m²
381 cd/m²
Peak 10% Window
699 cd/m²
782 cd/m²
Peak 25% Window
351 cd/m²
1,009 cd/m²
Peak 50% Window
210 cd/m²
690 cd/m²
Peak 100% Window
133 cd/m²
570 cd/m²
Sustained 2% Window
602 cd/m²
378 cd/m²
Sustained 10% Window
652 cd/m²
778 cd/m²
Sustained 25% Window
332 cd/m²
1,001 cd/m²
Sustained 50% Window
199 cd/m²
688 cd/m²
Sustained 100% Window
108 cd/m²
569 cd/m²
Automatic Brightness Limiting (ABL)
0.115
0.050
Horizontal Viewing Angle
8.5
5.0
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
44°
22°
Color Washout From Right
47°
18°
Horizontal Hue Graph
Color Shift From Left
28°
19°
Color Shift From Right
28°
17°
Horizontal Lightness Graph
Brightness Loss From Left
63°
35°
Brightness Loss From Right
62°
31°
Black Level Raise From Left
70°
15°
Black Level Raise From Right
70°
14°
Gamma Shift From Left
65°
14°
Gamma Shift From Right
63°
15°
Vertical Viewing Angle
8.9
4.6
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
49°
19°
Color Washout From Above
50°
18°
Vertical Hue Graph
Color Shift From Below
29°
16°
Color Shift From Above
29°
17°
Vertical Lightness Graph
Brightness Loss From Below
68°
29°
Brightness Loss From Above
68°
28°
Black Level Raise From Below
70°
10°
Black Level Raise From Above
70°
9°
Gamma Shift From Below
70°
13°
Gamma Shift From Above
70°
13°
Gray Uniformity
8.8
7.6
50% Uniformity Picture
50% Std. Dev.
0.803%
2.590%
50% DSE
0.126%
0.172%
Black Uniformity
10
7.4
Native Black Uniformity Picture
Native Std. Dev.
0.094%
1.205%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
0.568%
Color Accuracy (Pre-Calibration)
8.2
7.9
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Game Optimizer
Custom
sRGB Gamut Area xy
97.5%
98.9%
White Balance dE (Avg.)
4.18
3.71
Color Temperature (Avg.)
6,180 K
6,932 K
Gamma (Avg.)
2.12
1.95
Color dE (Avg.)
2.60
4.68
Contrast Setting
95
50
RGB Settings
Warm 50
Gain (0,0,0), Offset (0,0,0)
Gamma Setting
2.2
2.2
Brightness Setting
100
50
Measured Brightness
186 cd/m²
898 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.0
8.8
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Game Optimizer
Custom
sRGB Gamut Area xy
96.3%
95.2%
White Balance dE (Avg.)
1.11
0.74
Color Temperature (Avg.)
6,392 K
6,450 K
Gamma (Avg.)
2.28
2.17
Color dE (Avg.)
1.94
2.62
Contrast Setting
85
50
RGB Settings
High (-14, 2, -4), Low (0, 0, 7)
Gain (7,0,-3), Offset (3,0,-1)
Gamma Setting
2.2
2.2
Brightness Setting
56
3
Measured Brightness
103 cd/m²
102 cd/m²
SDR Color Gamut
9.0
9.5
sRGB Color Gamut Picture
sRGB Coverage xy
96.7%
99.3%
sRGB Picture Mode
Game Optimizer
Custom
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
85.9%
87.0%
Adobe RGB Picture Mode
Game Optimizer
Custom
SDR Color Volume
9.7
9.6
sRGB Color Volume ITP Picture
sRGB In ICtCp
98.3%
97.4%
sRGB Picture Mode
Game Optimizer
Custom
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
92.6%
92.1%
Adobe RGB Picture Mode
Game Optimizer
Custom
HDR Color Gamut
8.9
8.8
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
96.2%
94.8%
DCI-P3 Picture Mode
Game Optimizer
Standard
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
69.3%
72.4%
Rec. 2020 Picture Mode
Game Optimizer
Standard
HDR Color Volume
7.4
8.1
DCI-P3 Color Volume ITP Picture
DCI-P3 In ICtCp
75.5%
82.0%
DCI-P3 Picture Mode
Game Optimizer
Standard
Rec. 2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
58.6%
72.0%
Rec. 2020 Picture Mode
Game Optimizer
Standard
Reflections
9.3
9.1
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Glossy
Glossy
Total Reflections
1.2%
1.5%
Indirect Reflections
0.1%
0.2%
Calculated Direct Reflections
1.0%
1.3%
Text Clarity
7.0
7.0
ClearType On
ClearType Off
Pixel Type
OLED
VA
Pixels
Subpixel Layout
RWBG
BGR
Gradient
9.3
9.6
Gradient Picture
Color Depth
10 Bit
10 Bit
Motion
Refresh Rate
8.0
8.3
Native Refresh Rate
120 Hz
144 Hz
Max Refresh Rate
120 Hz
144 Hz
Max Refresh Rate Over DP
N/A
N/A
Max Refresh Rate Over HDMI
120 Hz
144 Hz
Max Refresh Rate Over DP @ 10-bit
N/A
N/A
Max Refresh Rate Over HDMI @ 10-Bit
120 Hz
144 Hz
Variable Refresh Rate (VRR)
FreeSync
Yes
Yes
G-SYNC
Compatible (NVIDIA Certified)
Compatible (Tested)
VRR Maximum
120 Hz
144 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
HDMI
HDMI
Variable Refresh Rate
Yes
Yes
Response Time @ Max Refresh Rate
9.8
6.8
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
No Overdrive
Game Mode
Rise / Fall Time
0.3 ms
5.5 ms
Total Response Time
1.8 ms
12.9 ms
Overshoot Error
0.9%
2.7%
Worst 3 Rise / Fall Time
0.4 ms
17.4 ms
Worst 3 Total Response Time
8.3 ms
33.0 ms
Worst 3 Overshoot Error
6.9%
20.9%
Response Time @ 120Hz
9.8
7.6
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
No Overdrive
Game Mode
Rise / Fall Time
0.3 ms
4.3 ms
Total Response Time
1.8 ms
11.8 ms
Overshoot Error
0.9%
5.6%
Worst 3 Rise / Fall Time
0.4 ms
8.0 ms
Worst 3 Total Response Time
8.3 ms
24.7 ms
Worst 3 Overshoot Error
6.9%
29.3%
Response Time @ 60Hz
9.7
6.7
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
No Overdrive
Game Mode
Rise / Fall Time
0.5 ms
6.7 ms
Total Response Time
2.8 ms
15.3 ms
Overshoot Error
0.4%
0.5%
Worst 3 Rise / Fall Time
0.5 ms
11.9 ms
Worst 3 Total Response Time
16.4 ms
28.5 ms
Worst 3 Overshoot Error
3.6%
5.1%
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
Yes
Yes
Maximum Frequency
60 Hz
60 Hz
Minimum Frequency
60 Hz
60 Hz
Longest Pulse Width Brightness
91 cd/m²
458 cd/m²
Shortest Pulse Width Brightness
91 cd/m²
458 cd/m²
Pulse Width Control
No
No
Pulse Phase Control
No
No
Pulse Amplitude Control
Yes
Yes
VRR At The Same Time
No
No
Image Flicker
10
9.0
Backlight Picture
Flicker-Free
No
No
PWM Dimming Frequency
0 Hz
960 Hz
Inputs
Input Lag
8.4
8.3
Native Resolution @ Max Hz
5.3 ms
6.0 ms
Native Resolution @ 120Hz
5.3 ms
7.1 ms
Native Resolution @ 60Hz
10.0 ms
11.4 ms
Backlight Strobing (BFI)
30.0 ms
32.4 ms
Resolution And Size
8.8
8.8
Native Resolution
3840 x 2160
3840 x 2160
Aspect Ratio
16:9
16:9
Megapixels
8.3 MP
8.3 MP
Pixel Density
106 PPI
103 PPI
Measured Screen Diagonal
41.5"
42.6"
Screen Area
734 in²
776 in²
PS5 Compatibility
10
10
PS5 Compatibility Photo
4k @ 120Hz
Yes
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
Xbox Series X|S Compatibility
10
10
XSX Compatibility Photo
4k @ 120Hz
Yes
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
No
No
Mini DisplayPort
No
No
HDMI
4 (HDMI 2.1)
4 (HDMI 2.1)
HDMI 2.1 Rated Speed
48Gbps (FRL 12x4)
48Gbps (FRL 12x4)
DVI
No
No
VGA
No
No
Daisy Chaining
No
No
3.5mm Audio Out
1
No
HDR10
Yes
Yes
3.5mm Audio In
No
No
3.5mm Microphone In
No
No
USB
USB-A Ports
3
2
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
Yes
Yes
RGB Illumination
No
No
Multiple Input Display
No
No
KVM Switch
No
No
On-Screen Display (OSD)
OSD Picture
Check Price
42"
OLED42C2PUA
SEE PRICE
Amazon.com
43"
QN43QN90BAFXZA
SEE PRICE
Amazon.com
42"
OLED42C2PUA
SEE PRICE
BestBuy.com
43"
QN43QN90BAFXZA
SEARCH
B&H
42"
OLED42C2PUA
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Walmart.com
43"
QN43QN90BAFXZA
SEARCH
BestBuy.com
42"
OLED42C2PUA
SEARCH
B&H
43"
QN43QN90BAFXZA
SEARCH
Samsung.com
42"
OLED42C2PUA
SEARCH
LG.com
43"
QN43QN90BAFXZA
SEARCH
Walmart.com
LG C2 42 OLED
Samsung 43 QN90B QLED
Comments
LG C2 42 OLED vs Samsung 43 QN90B QLED: Main Discussion
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