Products
TCL 8 Series 2019/Q825 QLED
TCL R635
Tested using Methodology v1.5
Updated Jul 23, 2025 06:52 PM
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Tested using Methodology v1.6
Updated Sep 24, 2025 06:41 PM
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TypeLED
Sub-Type
VA
Resolution4k
TypeLED
Sub-Type
VA
Resolution4k
Our Verdict
TCL 8 Series 2019/Q825 QLED
TCL R635
The TCL 8 Series 2019/Q825 QLED and the TCL R635 are similarly performing TVs. That said, the R635 has more advanced features, like VRR support and eARC capability. It also has a lower input lag and a faster response time, so it's a better option for gaming. On the other hand, there's a lot more backlight bleed with the R635, causing issues with black uniformity; however, this can vary between units.
Variants
- 65Q825 (65")
- 75Q825 (75")
- 55R635 (55")
- 65R635 (65")
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55"
55"
55R635
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65"
65Q825
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65"
65R635
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75"
75Q825
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75"
75R635
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Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
Full Comparison
Market Context
Market Context
Design
Style
Design Picture
Curved
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Stand
Stand Picture
Back
Back Picture
Wall Mount
Borders
Borders Picture
Borders
Thickness
Thickness Picture
Max Thickness
Build Quality
Build quality picture
Picture Quality
Contrast
Checkerboard Picture
Native Contrast
Contrast with local dimming
SDR Brightness
Real Scene Peak Brightness
Peak 2% Window
Peak 10% Window
Peak 25% Window
Peak 50% Window
Peak 100% Window
Sustained 2% Window
Sustained 10% Window
Sustained 25% Window
Sustained 50% Window
Sustained 100% Window
Automatic Brightness Limiting (ABL)
Local Dimming
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
Backlight
Local Dimming In Game Mode
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
Backlight
HDR Brightness
EOTF
Real Scene Highlight
Peak 2% Window
Peak 10% Window
Peak 25% Window
Peak 50% Window
Peak 100% Window
Sustained 2% Window
Sustained 10% Window
Sustained 25% Window
Sustained 50% Window
Sustained 100% Window
Automatic Brightness Limiting (ABL)
HDR Brightness In Game Mode
Game Mode EOTF
Real Scene Highlight
Peak 2% Window
Peak 10% Window
Peak 25% Window
Peak 50% Window
Peak 100% Window
Sustained 2% Window
Sustained 10% Window
Sustained 25% Window
Sustained 50% Window
Sustained 100% Window
Automatic Brightness Limiting (ABL)
Gray Uniformity
50% Uniformity Picture
50% Std. Dev.
50% DSE
5% Uniformity Picture
5% Std. Dev.
5% DSE
Black Uniformity
Native Black Uniformity Picture
Native Std. Dev.
Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
Viewing Angle
Viewing Angle Video
Chroma Graph
Color Washout
Hue Graph
Color Shift
Lightness Graph
Brightness Loss
Black Level Raise
Gamma Shift
Reflections
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Total Reflections
Indirect Reflections
Calculated Direct Reflections
Pre Calibration
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
Color dE
Gamma
Color Temperature
Picture Mode
Color Temp Setting
Gamma Setting
Post Calibration
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
Color dE
Gamma
Color Temperature
White Balance Calibration
Color Calibration
Auto-Calibration Function
480p Input
480p Picture
720p Input
720p Picture
1080p Input
1080p Picture
4k Input
4k Picture
8k Input
8k Picture
Pixels
Pixels Picture
Type
Sub-Type
Color Gamut
Wide Color Gamut
Color Gamut DCI-P3 Picture
DCI P3 xy
DCI P3 uv
Color Gamut Rec.2020 Picture
Rec 2020 xy
Rec 2020 uv
EOTF
Color Volume
P3 Color Volume ITP Picture
Normalized DCI P3 Coverage ITP
10,000 cd/m² DCI P3 Coverage ITP
2020 Color Volume ITP Picture
Normalized Rec 2020 Coverage ITP
10,000 cd/m² Rec 2020 Coverage ITP
Gradient
Gradient Picture
Color Depth
Red (Std. Dev.)
Green (Std. Dev.)
Blue (Std. Dev.)
Gray (Std. Dev.)
Temporary Image Retention
Image Retention Picture
IR after 0 min recovery
IR after 2 min recovery
IR after 4 min recovery
IR after 6 min recovery
IR after 8 min recovery
IR after 10 min recovery
Permanent Burn-In Risk
Permanent Burn-In Risk
Motion
Response Time
Motion Blur Picture
Response Time Chart
80% Response Time
100% Response Time
Flicker-Free
Backlight chart
Flicker-Free
PWM Dimming Frequency
Black Frame Insertion (BFI)
BFI Picture
BFI Frequency Picture
Optional BFI
Min Flicker For 60 fps
60Hz For 60 fps
120Hz For 120 fps
Min Flicker for 60 fps in Game Mode
Motion Interpolation
Motion Interpolation (30 fps) Picture
Motion Interpolation (30 fps)
Motion Interpolation (60 fps) Picture
Motion Interpolation (60 fps)
Stutter
Frame Hold Time @ 24 fps
Frame Hold Time @ 60 fps
24p Judder
Judder-Free 24p
Judder-Free 24p via 60p
Judder-Free 24p via 60i
Judder-Free 24p via Native Apps
Variable Refresh Rate
Native Refresh Rate
Variable Refresh Rate
HDMI Forum VRR
FreeSync
G-SYNC Compatible
4k VRR Maximum
4k VRR Minimum
1080p VRR Maximum
1080p VRR Minimum
1440p VRR Maximum
1440p VRR Minimum
VRR Supported Connectors
Inputs
Input Lag
1080p @ 60Hz
1080p @ 60Hz Outside Game Mode
1440p @ 60Hz
4k @ 60Hz
4k @ 60Hz + 10-Bit HDR
4k @ 60Hz @ 4:4:4
4k @ 60Hz Outside Game Mode
4k @ 60Hz With Interpolation
8k @ 60Hz
1080p @ 120Hz
1440p @ 120Hz
4k @ 120Hz
1080p with Variable Refresh Rate
1440p with VRR
4k with VRR
8k with VRR
Auto Low Latency Mode (ALLM)
Supported Resolutions
Resolution
1080p @ 60Hz @ 4:4:4
1080p @ 120Hz
1440p @ 60Hz
1440p @ 120Hz
4k @ 60Hz
4k @ 60Hz @ 4:4:4
4k @ 120Hz
8k @ 30Hz or 24Hz
8k @ 60Hz
Advanced Console Compatibility
PS5 Screenshot
Xbox Series X Screenshot
Auto Low Latency Mode (ALLM)
PS5, 4k @ 120Hz + HDR
PS5, 4k @ 120Hz
PS5, 4k @ 60Hz + HDR
PS5, 1440p @ 120Hz
PS5, 1080p @ 120Hz
PS5, Variable Refresh Rate
Xbox Series X, 4k @ 120Hz + HDR
Xbox Series X, 4k @ 120Hz
Xbox Series X, 4k @ 60Hz + HDR
Xbox Series X, 1440p @ 120Hz
Xbox Series X, 1080p @ 120Hz
Xbox Series X, Variable Refresh Rate
Inputs Specifications
HDR10
HDR10+
Dolby Vision
HLG
3D
HDMI 2.0 Full Bandwidth
HDMI 2.1 Class Bandwidth
CEC
HDCP 2.2
USB 3.0
Variable Analog Audio Out
Wi-Fi Support
Input Photos
Side Inputs Picture
Rear Inputs Picture
Total Inputs
HDMI
USB
Digital Optical Audio Out
Analog Audio Out 3.5mm
Analog Audio Out RCA
Component In
Composite In
Tuner (Cable/Ant)
Ethernet
DisplayPort
IR In
SD/SDHC
Audio Passthrough
ARC
eARC support
Dolby Atmos via TrueHD via eARC
DTS:X via DTS-HD MA via eARC
5.1 Dolby Digital via ARC
5.1 DTS via ARC
5.1 Dolby Digital via Optical
5.1 DTS via Optical
Sound Quality
Frequency Response
Frequency Response
Low-Frequency Extension
Std. Dev. @ 70
Std. Dev. @ 80
Std. Dev. @ Max
Max
Dynamic Range Compression
Distortion
Total Harmonic Distortion
Weighted THD @ 80
Weighted THD @ Max
IMD @ 80
IMD @ Max
Smart Features
Interface
Smart TV Picture
Smart OS
Version
Ease of Use
Smoothness
Time Taken to Select YouTube
Time Taken to Change Backlight
Advanced Options
Ad-Free
Ads Picture
Ads
Opt-out
Suggested Content in Home
Opt-out of Suggested Content
Apps and Features
Apps Picture
App Selection
App Smoothness
Cast Capable
USB Drive Playback
USB Drive HDR Playback
HDR in Netflix
HDR in YouTube
Remote
Remote Picture
Size
Voice Control
CEC Menu Control
Other Smart Features
Remote App
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
Power Consumption (Max)
Firmware
Check Price
55"
55"
55R635
SEE PRICE
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65"
65Q825
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65"
65R635
SEE PRICE
Amazon.com
75"
75Q825
SEARCH
Amazon.com
75"
75R635
SEARCH
Amazon.com
TCL 8 Series 2019/Q825 QLED
TCL R635
Comments
TCL 8 Series 2019/Q825 QLED vs TCL R635: Main Discussion
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