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- Table of Contents
- Top
- Main Differences
- Market Context
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
LG C9 OLED vs Vizio P Series Quantum X 2019
Side-by-Side Comparison
Products
LG C9 OLED
Vizio P Series Quantum X 2019
Tested using Methodology v1.5
Updated Apr 12, 2024 03:47 PM
SEE PRICE
Walmart.comTested using Methodology v1.5
Updated Sep 04, 2021 12:40 AM
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Amazon.com
TypeOLED
Sub-TypeWRGB
Resolution4k
TypeLED
Sub-TypeVA
Resolution4k
Variants
- OLED55C9PUA (55")
- OLED65C9PUA (65")
- OLED77C9PUA (77")
- PX65-G1 (65")
- PX75-G1 (75")
Our Verdict
LG C9 OLED
Vizio P Series Quantum X 2019
The LG C9 and the Vizio P Series Quantum X use different panel types, each with their strengths and weaknesses. The C9 is better for a dark room, and it has incredibly wide viewing angles. The C9 also has a nearly-instantaneous response time, outstanding low input lag, and some great future-proof features, like 4 HDMI 2.1 ports. As an OLED TV, the C9 does have a risk of permanent burn-in. The Quantum X, on the other hand, is much brighter, and small highlights in HDR movies look much closer to what the director intended. There is also no chance of burn-in with the Quantum X.
Check Price
55"
OLED55C9PUA
SEE PRICE
Amazon.com55"
65"
OLED65C9PUA
SEE PRICE
Amazon.com65"
PX65-G1
SEE PRICE
Amazon.com75"
75"
PX75-G1
SEE PRICE
Amazon.com77"
OLED77C9PUA
SEE PRICE
Walmart.com77"
Main Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
8.8
8.1
Local Dimming
10
8.0
Viewing Angle
8.8
5.2
SDR Peak Brightness
7.1
8.9
Contrast
10
9.1
Black Uniformity
10
8.1
Gray Uniformity
8.6
7.1
Full Comparison
Market Context
Market Context
Design
Style
9.5
8.5
Design Picture
Curved
No
No
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 300x200
VESA 400x400
Borders
Borders Picture
Borders
0.37" (0.9 cm)
0.35" (0.9 cm)
Thickness
Thickness Picture
Max Thickness
1.87" (4.8 cm)
2.72" (6.9 cm)
Build Quality
9.0
8.0
Build quality picture
Picture Quality
Contrast
10
9.1
Checkerboard Picture
Native Contrast
Inf : 1
5,414 : 1
Contrast with local dimming
N/A
14,743 : 1
Local Dimming
10
8.0
Local Dimming Video
Local Dimming
No
Yes
Backlight
No Backlight
Full-Array
SDR Peak Brightness
7.1
8.9
SDR Real Scene Peak Brightness
335 cd/m²
637 cd/m²
SDR Peak 2% Window
447 cd/m²
2,005 cd/m²
SDR Peak 10% Window
444 cd/m²
2,351 cd/m²
SDR Peak 25% Window
398 cd/m²
1,832 cd/m²
SDR Peak 50% Window
330 cd/m²
1,001 cd/m²
SDR Peak 100% Window
157 cd/m²
595 cd/m²
SDR Sustained 2% Window
430 cd/m²
1,446 cd/m²
SDR Sustained 10% Window
426 cd/m²
1,694 cd/m²
SDR Sustained 25% Window
382 cd/m²
1,684 cd/m²
SDR Sustained 50% Window
317 cd/m²
924 cd/m²
SDR Sustained 100% Window
151 cd/m²
591 cd/m²
SDR ABL
0.072
0.001
HDR Peak Brightness
7.3
9.2
HDR Real Scene Peak Brightness
726 cd/m²
1,406 cd/m²
HDR Peak 2% Window
855 cd/m²
1,800 cd/m²
HDR Peak 10% Window
845 cd/m²
2,373 cd/m²
HDR Peak 25% Window
530 cd/m²
1,826 cd/m²
HDR Peak 50% Window
301 cd/m²
1,015 cd/m²
HDR Peak 100% Window
145 cd/m²
604 cd/m²
HDR Sustained 2% Window
814 cd/m²
1,298 cd/m²
HDR Sustained 10% Window
802 cd/m²
1,705 cd/m²
HDR Sustained 25% Window
506 cd/m²
1,671 cd/m²
HDR Sustained 50% Window
286 cd/m²
921 cd/m²
HDR Sustained 100% Window
138 cd/m²
601 cd/m²
HDR ABL
0.109
0.056
Gray Uniformity
8.6
7.1
50% Uniformity Picture
50% Std. Dev.
0.989%
4.482%
50% DSE
0.128%
0.178%
5% Uniformity Picture
5% Std. Dev.
0.499%
1.614%
5% DSE
0.102%
0.112%
Viewing Angle
8.8
5.2
Viewing Angle Video
Chroma Graph
Color Washout
49°
23°
Hue Graph
Color Shift
31°
21°
Lightness Graph
Brightness Loss
67°
36°
Black Level Raise
70°
13°
Gamma Shift
67°
17°
Black Uniformity
10
8.1
Native Black Uniformity Picture
Native Std. Dev.
0.249%
1.008%
Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
N/A
0.410%
Reflections
9.3
8.9
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Glossy
Glossy
Total Reflections
1.4%
2.2%
Indirect Reflections
0.2%
0.2%
Calculated Direct Reflections
1.2%
2.0%
Pre Calibration
7.6
6.7
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
3.46
4.03
Color dE
2.11
3.10
Gamma
2.17
2.22
Color Temperature
5,929 K
5,803 K
Picture Mode
Expert (Dark Room)
Calibrated Dark
Color Temp Setting
Warm 2
Normal
Gamma Setting
2.2
2.2
Post Calibration
9.5
9.6
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.44
0.36
Color dE
0.91
0.76
Gamma
2.18
2.20
Color Temperature
6,539 K
6,452 K
White Balance Calibration
22 point
11 point
Color Calibration
Yes
Yes
Auto-Calibration Function
Yes
No
480p Input
8.0
7.0
480p Picture
720p Input
8.0
7.0
720p Picture
1080p Input
9.0
9.0
1080p Picture
4k Input
10
10
4k Picture
8k Input
0.0
0.0
8k Picture
Pixels
Pixels Picture
Type
OLED
LED
Sub-Type
WRGB
VA
Color Gamut
8.6
9.0
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
97.21%
96.34%
DCI P3 uv
98.68%
97.94%
Color Gamut Rec.2020 Picture
Rec 2020 xy
71.57%
79.00%
Rec 2020 uv
75.53%
85.55%
EOTF
Color Volume
7.4
8.0
P3 Color Volume ITP Picture
Normalized DCI P3 Coverage ITP
84.6%
84.1%
10,000 cd/m² DCI P3 Coverage ITP
46.8%
60.7%
2020 Color Volume ITP Picture
Normalized Rec 2020 Coverage ITP
61.7%
76.4%
10,000 cd/m² Rec 2020 Coverage ITP
34.4%
52.2%
Gradient
9.0
6.9
Gradient Picture
Color Depth
10 Bit
10 Bit
Red (Std. Dev.)
0.081
0.140
Green (Std. Dev.)
0.091
0.147
Blue (Std. Dev.)
0.072
0.113
Gray (Std. Dev.)
0.074
0.197
Temporary Image Retention
10
10
Image Retention Picture
IR after 0 min recovery
0.00%
0.00%
IR after 2 min recovery
0.00%
0.00%
IR after 4 min recovery
0.00%
0.00%
IR after 6 min recovery
0.00%
0.00%
IR after 8 min recovery
0.00%
0.00%
IR after 10 min recovery
0.00%
0.00%
Permanent Burn-In Risk
2.0
10
Permanent Burn-In Risk
Yes
No
Motion
Response Time
9.9
8.5
Motion Blur Picture
Response Time Chart
80% Response Time
0.2 ms
3.5 ms
100% Response Time
2.4 ms
9.9 ms
Flicker-Free
10
4.0
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
0 Hz
120 Hz
Black Frame Insertion (BFI)
8.7
10
BFI Picture
BFI Frequency Picture
Optional BFI
Yes
Yes
Min Flicker for 60 fps
60 Hz
60 Hz
60 Hz for 60 fps
Yes
Yes
120 Hz for 120 fps
No
Yes
Min Flicker for 60 fps in Game Mode
60 Hz
60 Hz
Motion Interpolation
Motion Interpolation (30 fps) Picture
Motion Interpolation (30 fps)
Yes
Yes
Motion Interpolation (60 fps) Picture
Motion Interpolation (60 fps)
Yes
Yes
Stutter
5.0
6.7
Frame Hold Time @ 24 fps
39.3 ms
31.8 ms
Frame Hold Time @ 60 fps
14.3 ms
6.8 ms
24p Judder
10
7.8
Judder-Free 24p
Yes
Yes
Judder-Free 24p via 60p
Yes
No
Judder-Free 24p via 60i
Yes
No
Judder-Free 24p via Native Apps
Yes
Yes
Variable Refresh Rate
7.6
0.0
Native Refresh Rate
120 Hz
120 Hz
Variable Refresh Rate
Yes
No
HDMI Forum VRR
Yes
No
FreeSync
No
No
G-SYNC Compatible
Yes (NVIDIA Certified)
No
4k VRR Maximum
60 Hz
N/A
4k VRR Minimum
40 Hz
No VRR support
1080p VRR Maximum
120 Hz
N/A
1080p VRR Minimum
40 Hz
No VRR support
1440p VRR Maximum
120 Hz
N/A
1440p VRR Minimum
40 Hz
No VRR support
VRR Supported Connectors
HDMI
No VRR support
Inputs
Input Lag
8.8
8.3
1080p @ 60 Hz
13.5 ms
14.7 ms
1080p @ 60 Hz Outside Game Mode
100.8 ms
89.7 ms
1440p @ 60 Hz
13.9 ms
N/A
4k @ 60 Hz
13.5 ms
16.6 ms
4k @ 60 Hz + 10 bit HDR
13.4 ms
26.1 ms
4k @ 60 Hz @ 4:4:4
13.3 ms
26.0 ms
4k @ 60 Hz Outside Game Mode
50.6 ms
83.1 ms
4k @ 60 Hz With Interpolation
96.7 ms
83.8 ms
8k @ 60 Hz
N/A
N/A
1080p @ 120 Hz
6.8 ms
10.5 ms
1440p @ 120 Hz
6.6 ms
N/A
4k @ 120 Hz
N/A
1080p with Variable Refresh Rate
6.3 ms
N/A
1440p with VRR
6.7 ms
N/A
4k with VRR
15.9 ms
N/A
8k with VRR
N/A
N/A
Auto Low Latency Mode (ALLM)
Yes
No
Supported Resolutions
9.6
8.3
Resolution
4k
4k
1080p @ 60 Hz @ 4:4:4
Yes
Yes
1080p @ 120 Hz
Yes (native support)
Yes (native support)
1440p @ 60 Hz
Yes (forced resolution required)
No
1440p @ 120 Hz
Yes (native support)
No
4k @ 60 Hz
Yes
Yes
4k @ 60 Hz @ 4:4:4
Yes
Yes
4k @ 120 Hz
No
8k @ 30 Hz or 24 Hz
No
No
8k @ 60 Hz
No
No
Input Photos
Side Inputs Picture
Rear Inputs Picture
Total Inputs
HDMI
4
5
USB
3
1
Digital Optical Audio Out
1
1
Analog Audio Out 3.5mm
1
0
Analog Audio Out RCA
0
1
Component In
0
1 (shared)
Composite In
1 (incl. adapter)
1 (shared)
Tuner (Cable/Ant)
1
1
Ethernet
1
1
DisplayPort
0
0
IR In
0
0
SD/SDHC
0
0
Inputs Specifications
HDR10
Yes
Yes
HDR10+
No
Yes
Dolby Vision
Yes
Yes
HLG
Yes
Yes
3D
No
No
HDMI 2.0 Full Bandwidth
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
HDMI 2.1
Yes (HDMI 1,2,3,4)
No
CEC
Yes
Yes
HDCP 2.2
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4,5)
USB 3.0
No
No
Variable Analog Audio Out
Yes
Yes
Wi-Fi Support
Yes (2.4 GHz, 5 GHz)
Yes (2.4 GHz, 5 GHz)
Audio Passthrough
ARC
Yes (HDMI 2)
Yes (HDMI 1)
eARC support
Yes
No
Dolby Atmos via TrueHD via eARC
Yes
No
DTS:X via DTS-HD MA via eARC
Yes
No
5.1 Dolby Digital via ARC
Yes
Yes
5.1 DTS via ARC
Yes
Yes
5.1 Dolby Digital via Optical
Yes
Yes
5.1 DTS via Optical
Yes
Yes
Sound Quality
Frequency Response
7.4
4.4
Frequency Response
Low-Frequency Extension
67.27 Hz
142.54 Hz
Std. Dev. @ 70
2.67 dB
5.07 dB
Std. Dev. @ 80
2.74 dB
5.66 dB
Std. Dev. @ Max
4.94 dB
5.59 dB
Max
87.8 dB SPL
70.1 dB SPL
Dynamic Range Compression
4.00 dB
1.42 dB
Distortion
6.0
8.2
Total Harmonic Distortion
Weighted THD @ 80
0.263
0.060
Weighted THD @ Max
3.477
0.059
IMD @ 80
10.58%
0.68%
IMD @ Max
25.15%
0.83%
Smart Features
Interface
8.5
7.0
Smart TV Picture
Smart OS
WebOS
SmartCast
Version
4.5
1.27
Ease of Use
Easy
Easy
Smoothness
Average
Not Smooth
Time Taken to Select YouTube
2 s
3 s
Time Taken to Change Backlight
7 s
3 s
Advanced Options
Many
Many
Ad-Free
0.0
10
Ads Picture
Ads
Yes
No
Opt-out
No
No Add
Suggested Content in Home
Yes
Yes
Opt-out of Suggested Content
No
No
Apps and Features
8.0
6.5
Apps Picture
App Selection
Great
Great
App Smoothness
Average
Average
Cast Capable
Yes
Yes
USB Drive Playback
Yes
Yes
USB Drive HDR Playback
Yes
Yes
HDR in Netflix
Yes
Yes
HDR in YouTube
Yes
Yes
Remote
9.0
6.0
Remote Picture
Size
Large
Medium
Voice Control
Many Features
No
CEC Menu Control
Yes
Yes
Other Smart Features
Yes
No
Remote App
LG TV Plus
Vizio SmartCast Mobile
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
89 W
94 W
Power Consumption (Max)
171 W
328 W
Firmware
03.50.22
2.1.6.3
Check Price
55"
OLED55C9PUA
SEE PRICE
Amazon.com55"
65"
OLED65C9PUA
SEE PRICE
Amazon.com65"
PX65-G1
SEE PRICE
Amazon.com75"
75"
PX75-G1
SEE PRICE
Amazon.com77"
OLED77C9PUA
SEE PRICE
Walmart.com77"
LG C9 OLED
Vizio P Series Quantum X 2019
Comments
LG C9 OLED vs Vizio P Series Quantum X 2019: Main Discussion
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