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- Table of Contents
- Top
- Main Differences
- Market Context
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
LG C8 OLED vs LG C9 OLED
Side-by-Side Comparison
Products
LG C8 OLED
LG C9 OLED
Tested using Methodology v1.5
Updated Feb 22, 2024 02:27 PM
SEE PRICE
Amazon.comTested using Methodology v1.5
Updated Apr 12, 2024 03:47 PM
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TypeOLED
Sub-TypeWRGB
Resolution4k
TypeOLED
Sub-TypeWRGB
Resolution4k
Variants
- OLED55C8 (55")
- OLED65C8 (65")
- OLED77C8 (77")
- OLED55C9PUA (55")
- OLED65C9PUA (65")
- OLED77C9PUA (77")
Our Verdict
LG C8 OLED
LG C9 OLED
The LG C9 and LG C8 OLED are extremely similar overall. The C9 we tested had less temporary image retention, but this varies between units, and might not be indicative of the full lineup. The biggest difference between these TVs is the inputs. The C9 has 4 HDMI 2.1 inputs, which for the moment, doesn't add much if anything at all. Once there are HDMI 2.1 sources, the C9 should support a 4k @ 120 Hz input, even at full chroma. The C9 also supports eARC and supports the HDMI 2.1 variable refresh rate technology, which is currently only supported by the Xbox One.
Check Price
55"
OLED55C8
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OLED55C9PUA
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OLED65C8
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OLED65C9PUA
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Finding store77"
OLED77C8
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OLED77C9PUA
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Finding storeMain Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
8.6
8.8
Full Comparison
Market Context
Market Context
Design
Style
9.5
9.5
Design Picture
Curved
No
No
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 300x200
VESA 300x200
Borders
Borders Picture
Borders
0.35" (0.9 cm)
0.37" (0.9 cm)
Thickness
Thickness Picture
Max Thickness
1.89" (4.8 cm)
1.87" (4.8 cm)
Build Quality
9.0
9.0
Build quality picture
Picture Quality
Contrast
10
10
Checkerboard Picture
Native Contrast
Inf : 1
Inf : 1
Contrast with local dimming
N/A
N/A
Local Dimming
10
10
Local Dimming Video
Local Dimming
No
No
Backlight
No Backlight
No Backlight
SDR Peak Brightness
6.8
7.1
SDR Real Scene Peak Brightness
318 cd/m²
335 cd/m²
SDR Peak 2% Window
345 cd/m²
447 cd/m²
SDR Peak 10% Window
345 cd/m²
444 cd/m²
SDR Peak 25% Window
344 cd/m²
398 cd/m²
SDR Peak 50% Window
345 cd/m²
330 cd/m²
SDR Peak 100% Window
163 cd/m²
157 cd/m²
SDR Sustained 2% Window
331 cd/m²
430 cd/m²
SDR Sustained 10% Window
331 cd/m²
426 cd/m²
SDR Sustained 25% Window
333 cd/m²
382 cd/m²
SDR Sustained 50% Window
332 cd/m²
317 cd/m²
SDR Sustained 100% Window
158 cd/m²
151 cd/m²
SDR ABL
0.059
0.072
HDR Peak Brightness
7.2
7.3
HDR Real Scene Peak Brightness
666 cd/m²
726 cd/m²
HDR Peak 2% Window
979 cd/m²
855 cd/m²
HDR Peak 10% Window
918 cd/m²
845 cd/m²
HDR Peak 25% Window
511 cd/m²
530 cd/m²
HDR Peak 50% Window
328 cd/m²
301 cd/m²
HDR Peak 100% Window
159 cd/m²
145 cd/m²
HDR Sustained 2% Window
915 cd/m²
814 cd/m²
HDR Sustained 10% Window
876 cd/m²
802 cd/m²
HDR Sustained 25% Window
492 cd/m²
506 cd/m²
HDR Sustained 50% Window
303 cd/m²
286 cd/m²
HDR Sustained 100% Window
151 cd/m²
138 cd/m²
HDR ABL
0.106
0.109
Gray Uniformity
8.7
8.6
50% Uniformity Picture
50% Std. Dev.
1.495%
0.989%
50% DSE
0.117%
0.128%
5% Uniformity Picture
5% Std. Dev.
0.562%
0.499%
5% DSE
0.097%
0.102%
Viewing Angle
8.8
8.8
Viewing Angle Video
Chroma Graph
Color Washout
48°
49°
Hue Graph
Color Shift
28°
31°
Lightness Graph
Brightness Loss
67°
67°
Black Level Raise
70°
70°
Gamma Shift
70°
67°
Black Uniformity
10
10
Native Black Uniformity Picture
Native Std. Dev.
0.230%
0.249%
Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Reflections
9.4
9.3
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Glossy
Glossy
Total Reflections
1.3%
1.4%
Indirect Reflections
0.1%
0.2%
Calculated Direct Reflections
1.2%
1.2%
Pre Calibration
8.1
7.6
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
2.52
3.46
Color dE
2.11
2.11
Gamma
2.15
2.17
Color Temperature
6,055 K
5,929 K
Picture Mode
Expert (Dark Room)
Expert (Dark Room)
Color Temp Setting
Warm 2
Warm 2
Gamma Setting
2.2
2.2
Post Calibration
9.5
9.5
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.11
0.44
Color dE
1.09
0.91
Gamma
2.20
2.18
Color Temperature
6,496 K
6,539 K
White Balance Calibration
20 point
22 point
Color Calibration
Yes
Yes
Auto-Calibration Function
Yes
Yes
480p Input
8.0
8.0
480p Picture
720p Input
8.0
8.0
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
OLED
Sub-Type
WRGB
WRGB
Color Gamut
8.5
8.6
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
96.64%
97.21%
DCI P3 uv
98.13%
98.68%
Color Gamut Rec.2020 Picture
Rec 2020 xy
70.44%
71.57%
Rec 2020 uv
73.98%
75.53%
EOTF
Color Volume
7.1
7.4
P3 Color Volume ITP Picture
Normalized DCI P3 Coverage ITP
79.9%
84.6%
10,000 cd/m² DCI P3 Coverage ITP
44.5%
46.8%
2020 Color Volume ITP Picture
Normalized Rec 2020 Coverage ITP
60.9%
61.7%
10,000 cd/m² Rec 2020 Coverage ITP
33.9%
34.4%
Gradient
9.1
9.0
Gradient Picture
Color Depth
10 Bit
10 Bit
Red (Std. Dev.)
0.084
0.081
Green (Std. Dev.)
0.089
0.091
Blue (Std. Dev.)
0.077
0.072
Gray (Std. Dev.)
0.053
0.074
Temporary Image Retention
8.3
10
Image Retention Picture
IR after 0 min recovery
0.53%
0.00%
IR after 2 min recovery
0.11%
0.00%
IR after 4 min recovery
0.00%
0.00%
IR after 6 min recovery
0.02%
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
2.0
Permanent Burn-In Risk
Yes
Yes
Motion
Response Time
9.9
9.9
Motion Blur Picture
Response Time Chart
80% Response Time
0.2 ms
0.2 ms
100% Response Time
1.7 ms
2.4 ms
Flicker-Free
10
10
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
0 Hz
0 Hz
Black Frame Insertion (BFI)
8.7
8.7
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
No
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
4.8
5.0
Frame Hold Time @ 24 fps
40.0 ms
39.3 ms
Frame Hold Time @ 60 fps
15.0 ms
14.3 ms
24p Judder
10
10
Judder-Free 24p
Yes
Yes
Judder-Free 24p via 60p
Yes
Yes
Judder-Free 24p via 60i
Yes
Yes
Judder-Free 24p via Native Apps
Yes
Yes
Variable Refresh Rate
0.0
7.6
Native Refresh Rate
120 Hz
120 Hz
Variable Refresh Rate
No
Yes
HDMI Forum VRR
No
Yes
FreeSync
No
No
G-SYNC Compatible
No
Yes (NVIDIA Certified)
4k VRR Maximum
N/A
60 Hz
4k VRR Minimum
No VRR support
40 Hz
1080p VRR Maximum
N/A
120 Hz
1080p VRR Minimum
No VRR support
40 Hz
1440p VRR Maximum
N/A
120 Hz
1440p VRR Minimum
No VRR support
40 Hz
VRR Supported Connectors
No VRR support
HDMI
Inputs
Input Lag
7.9
8.8
1080p @ 60 Hz
21.1 ms
13.5 ms
1080p @ 60 Hz Outside Game Mode
50.0 ms
100.8 ms
1440p @ 60 Hz
N/A
13.9 ms
4k @ 60 Hz
21.1 ms
13.5 ms
4k @ 60 Hz + 10 bit HDR
21.5 ms
13.4 ms
4k @ 60 Hz @ 4:4:4
21.1 ms
13.3 ms
4k @ 60 Hz Outside Game Mode
50.0 ms
50.6 ms
4k @ 60 Hz With Interpolation
100.0 ms
96.7 ms
8k @ 60 Hz
N/A
N/A
1080p @ 120 Hz
21.9 ms
6.8 ms
1440p @ 120 Hz
N/A
6.6 ms
4k @ 120 Hz
N/A
1080p with Variable Refresh Rate
N/A
6.3 ms
1440p with VRR
N/A
6.7 ms
4k with VRR
N/A
15.9 ms
8k with VRR
N/A
N/A
Auto Low Latency Mode (ALLM)
No
Yes
Supported Resolutions
8.3
9.6
Resolution
4k
4k
1080p @ 60 Hz @ 4:4:4
Yes
Yes
1080p @ 120 Hz
Yes (native support)
Yes (native support)
1440p @ 60 Hz
No
Yes (forced resolution required)
1440p @ 120 Hz
No
Yes (native support)
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
4
USB
3
3
Digital Optical Audio Out
1
1
Analog Audio Out 3.5mm
0
1
Analog Audio Out RCA
0
0
Component In
0
0
Composite In
1 (incl. adapter)
1 (incl. adapter)
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
No
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
No
Yes (HDMI 1,2,3,4)
CEC
Yes
Yes
HDCP 2.2
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
USB 3.0
No
No
Variable Analog Audio Out
No
Yes
Wi-Fi Support
Yes (2.4 GHz, 5 GHz)
Yes (2.4 GHz, 5 GHz)
Audio Passthrough
ARC
Yes (HDMI 2)
Yes (HDMI 2)
eARC support
No
Yes
Dolby Atmos via TrueHD via eARC
No
Yes
DTS:X via DTS-HD MA via eARC
No
Yes
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
7.4
Frequency Response
Low-Frequency Extension
63.50 Hz
67.27 Hz
Std. Dev. @ 70
3.86 dB
2.67 dB
Std. Dev. @ 80
4.09 dB
2.74 dB
Std. Dev. @ Max
5.00 dB
4.94 dB
Max
90.0 dB SPL
87.8 dB SPL
Dynamic Range Compression
3.73 dB
4.00 dB
Distortion
7.0
6.0
Total Harmonic Distortion
Weighted THD @ 80
0.078
0.263
Weighted THD @ Max
0.547
3.477
IMD @ 80
3.06%
10.58%
IMD @ Max
7.68%
25.15%
Smart Features
Interface
8.5
8.5
Smart TV Picture
Smart OS
WebOS
WebOS
Version
4.0
4.5
Ease of Use
Easy
Easy
Smoothness
Very Smooth
Average
Time Taken to Select YouTube
2 s
2 s
Time Taken to Change Backlight
7 s
7 s
Advanced Options
Many
Many
Ad-Free
0.0
0.0
Ads Picture
Ads
Yes
Yes
Opt-out
No
No
Suggested Content in Home
Yes
Yes
Opt-out of Suggested Content
No
No
Apps and Features
8.0
8.0
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
9.0
Remote Picture
Size
Large
Large
Voice Control
Many Features
Many Features
CEC Menu Control
Yes
Yes
Other Smart Features
Yes
Yes
Remote App
LG TV Plus
LG TV Plus
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
79 W
89 W
Power Consumption (Max)
179 W
171 W
Firmware
03.00.62
03.50.22
Check Price
55"
OLED55C8
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OLED55C9PUA
Searching
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OLED65C8
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Finding store65"
OLED65C9PUA
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Finding store77"
OLED77C8
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OLED77C9PUA
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LG C8 OLED
LG C9 OLED
Comments
LG C8 OLED vs LG C9 OLED: Main Discussion
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