Notice: Your browser is not supported or outdated so some features of the site might not be available.
- Table of Contents
- Top
- Main Differences
- Market Context
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
TCL 8 Series 2019/Q825 QLED vs TCL R635
Side-by-Side Comparison
Products
TCL 8 Series 2019/Q825 QLED
TCL R635
Tested using Methodology v1.5
Updated May 29, 2023 03:08 PM
SEE PRICE
Amazon.comTested using Methodology v1.6
Updated Apr 16, 2025 03:43 PM
SEE PRICE
Amazon.com
TypeLED
Sub-TypeVA
Resolution4k
TypeLED
Sub-TypeVA
Resolution4k
Variants
- 65Q825 (65")
- 75Q825 (75")
- 55R635 (55")
- 65R635 (65")
- 75R635 (75")
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.
Check Price
55"
55"
55R635
Searching
Finding store65"
65Q825
Searching
Finding store65"
65R635
Searching
Finding store75"
75Q825
Searching
Finding store75"
75R635
Searching
Finding storeMain Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
8.0
7.8
Black Uniformity
9.3
6.7
Full Comparison
Market Context
Market Context
Design
Style
Design Picture
Curved
No
No
Accelerated Longevity Test
Uniformity Pictures
Month 26
50% Gray
Longevity Graph
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 300x300
VESA 300x300
Borders
Borders Picture
Borders
0.35" (0.9 cm)
0.35" (0.9 cm)
Thickness
Thickness Picture
Max Thickness
3.19" (8.1 cm)
3.66" (9.3 cm)
Build Quality
8.0
7.5
Build quality picture
Picture Quality
Contrast
9.4
9.0
Checkerboard Picture
Native Contrast
6,649 : 1
5,560 : 1
Contrast with local dimming
39,812 : 1
10,537 : 1
SDR Brightness
9.2
8.8
Real Scene Peak Brightness
907 cd/m²
679 cd/m²
Peak 2% Window
1,419 cd/m²
568 cd/m²
Peak 10% Window
1,800 cd/m²
907 cd/m²
Peak 25% Window
1,861 cd/m²
988 cd/m²
Peak 50% Window
1,199 cd/m²
869 cd/m²
Peak 100% Window
656 cd/m²
596 cd/m²
Sustained 2% Window
1,322 cd/m²
567 cd/m²
Sustained 10% Window
1,760 cd/m²
902 cd/m²
Sustained 25% Window
1,818 cd/m²
982 cd/m²
Sustained 50% Window
1,185 cd/m²
865 cd/m²
Sustained 100% Window
654 cd/m²
594 cd/m²
Automatic Brightness Limiting (ABL)
0.052
0.034
Local Dimming
6.5
6.0
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
Yes
Yes
Backlight
Full-Array
Full-Array
Local Dimming In Game Mode
6.0
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
Yes
Backlight
Full-Array
HDR Brightness
9.3
8.4
EOTF
Real Scene Highlight
1,379 cd/m²
885 cd/m²
Peak 2% Window
1,414 cd/m²
599 cd/m²
Peak 10% Window
1,822 cd/m²
986 cd/m²
Peak 25% Window
1,884 cd/m²
1,080 cd/m²
Peak 50% Window
1,215 cd/m²
790 cd/m²
Peak 100% Window
664 cd/m²
662 cd/m²
Sustained 2% Window
1,311 cd/m²
597 cd/m²
Sustained 10% Window
1,775 cd/m²
980 cd/m²
Sustained 25% Window
1,836 cd/m²
1,072 cd/m²
Sustained 50% Window
1,199 cd/m²
788 cd/m²
Sustained 100% Window
661 cd/m²
660 cd/m²
Automatic Brightness Limiting (ABL)
0.052
0.033
HDR Brightness In Game Mode
8.4
Game Mode EOTF
Real Scene Highlight
863 cd/m²
Peak 2% Window
603 cd/m²
Peak 10% Window
1,003 cd/m²
Peak 25% Window
1,096 cd/m²
Peak 50% Window
796 cd/m²
Peak 100% Window
665 cd/m²
Sustained 2% Window
600 cd/m²
Sustained 10% Window
999 cd/m²
Sustained 25% Window
1,081 cd/m²
Sustained 50% Window
793 cd/m²
Sustained 100% Window
664 cd/m²
Automatic Brightness Limiting (ABL)
0.034
Gray Uniformity
6.9
7.1
50% Uniformity Picture
50% Std. Dev.
2.125%
2.489%
50% DSE
0.207%
0.189%
5% Uniformity Picture
5% Std. Dev.
2.381%
2.053%
5% DSE
0.131%
0.135%
Black Uniformity
9.3
6.7
Native Black Uniformity Picture
Native Std. Dev.
0.618%
1.889%
Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
0.301%
0.831%
Viewing Angle
5.5
5.4
Viewing Angle Video
Chroma Graph
Color Washout
25°
25°
Hue Graph
Color Shift
25°
24°
Lightness Graph
Brightness Loss
35°
34°
Black Level Raise
18°
19°
Gamma Shift
19°
16°
Reflections
7.6
7.0
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Semi-gloss
Semi-gloss
Total Reflections
4.9%
6.0%
Indirect Reflections
0.4%
1.1%
Calculated Direct Reflections
4.5%
4.9%
Pre Calibration
4.8
6.1
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
6.02
4.48
Color dE
4.25
3.65
Gamma
2.45
2.28
Color Temperature
5,526 K
5,753 K
Picture Mode
Movie
Movie
Color Temp Setting
Warm
Warm
Gamma Setting
2.2
2.2
Post Calibration
9.6
9.4
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.19
0.23
Color dE
0.81
1.55
Gamma
2.20
2.20
Color Temperature
6,501 K
6,478 K
White Balance Calibration
11 point
11 point
Color Calibration
Yes
Yes
Auto-Calibration Function
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
LED
LED
Sub-Type
VA
VA
Color Gamut
8.4
8.4
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
90.40%
91.01%
DCI P3 uv
93.82%
94.57%
Color Gamut Rec.2020 Picture
Rec 2020 xy
70.05%
69.72%
Rec 2020 uv
80.47%
78.81%
EOTF
Color Volume
8.1
8.0
P3 Color Volume ITP Picture
Normalized DCI P3 Coverage ITP
88.0%
86.8%
10,000 cd/m² DCI P3 Coverage ITP
56.3%
45.0%
2020 Color Volume ITP Picture
Normalized Rec 2020 Coverage ITP
73.4%
71.9%
10,000 cd/m² Rec 2020 Coverage ITP
46.5%
37.3%
Gradient
7.0
6.2
Gradient Picture
Color Depth
10 Bit
10 Bit
Red (Std. Dev.)
0.139
0.204
Green (Std. Dev.)
0.156
0.176
Blue (Std. Dev.)
0.105
0.184
Gray (Std. Dev.)
0.172
0.152
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
10
10
Permanent Burn-In Risk
No
No
Motion
Response Time
7.9
8.4
Motion Blur Picture
Response Time Chart
80% Response Time
5.5 ms
3.8 ms
100% Response Time
11.9 ms
11.1 ms
Flicker-Free
9.9
9.9
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
960 Hz
960 Hz
Black Frame Insertion (BFI)
10
8.7
BFI Picture
BFI Frequency Picture
Optional BFI
Yes
Yes
Min Flicker For 60 fps
60 Hz
60 Hz
60Hz For 60 fps
Yes
Yes
120Hz For 120 fps
Yes
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
7.2
7.0
Frame Hold Time @ 24 fps
29.8 ms
30.6 ms
Frame Hold Time @ 60 fps
4.8 ms
5.6 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
8.2
Native Refresh Rate
120 Hz
120 Hz
Variable Refresh Rate
No
Yes
HDMI Forum VRR
No
Yes
FreeSync
No
Yes
G-SYNC Compatible
No
Yes
4k VRR Maximum
N/A
60 Hz
4k VRR Minimum
No VRR support
48 Hz
1080p VRR Maximum
N/A
120 Hz
1080p VRR Minimum
No VRR support
< 20 Hz
1440p VRR Maximum
N/A
120 Hz
1440p VRR Minimum
No VRR support
< 20 Hz
VRR Supported Connectors
No VRR support
HDMI
Inputs
Input Lag
7.3
9.2
1080p @ 60Hz
26.8 ms
18.4 ms
1080p @ 60Hz Outside Game Mode
135.1 ms
144.0 ms
1440p @ 60Hz
27.0 ms
17.9 ms
4k @ 60Hz
26.2 ms
17.8 ms
4k @ 60Hz + 10-Bit HDR
28.8 ms
18.0 ms
4k @ 60Hz @ 4:4:4
26.4 ms
17.8 ms
4k @ 60Hz Outside Game Mode
118.1 ms
143.7 ms
4k @ 60Hz With Interpolation
127.2 ms
151.5 ms
8k @ 60Hz
N/A
N/A
1080p @ 120Hz
N/A
8.8 ms
1440p @ 120Hz
N/A
9.3 ms
4k @ 120Hz
N/A
N/A
1080p with Variable Refresh Rate
N/A
N/A
1440p with VRR
N/A
N/A
4k with VRR
N/A
N/A
8k with VRR
N/A
N/A
Auto Low Latency Mode (ALLM)
Yes
Yes
Supported Resolutions
8.3
7.9
Resolution
4k
4k
1080p @ 60Hz @ 4:4:4
Yes
No
1080p @ 120Hz
No
Yes (native support)
1440p @ 60Hz
Yes (forced resolution required)
Yes (forced resolution required)
1440p @ 120Hz
No
Yes (native support)
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
No
No
8k @ 30Hz or 24Hz
No
No
8k @ 60Hz
No
No
Advanced Console Compatibility
PS5 Screenshot
Xbox Series X Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
PS5, 4k @ 120Hz + HDR
No
PS5, 4k @ 120Hz
No
PS5, 4k @ 60Hz + HDR
Yes
PS5, 1440p @ 120Hz
Yes
PS5, 1080p @ 120Hz
Yes
PS5, Variable Refresh Rate
Yes
Xbox Series X, 4k @ 120Hz + HDR
No
Xbox Series X, 4k @ 120Hz
No
Xbox Series X, 4k @ 60Hz + HDR
Yes
Xbox Series X, 1440p @ 120Hz
Yes
Xbox Series X, 1080p @ 120Hz
Yes
Xbox Series X, Variable Refresh Rate
Yes
Inputs Specifications
HDR10
Yes
Yes
HDR10+
No
No
Dolby Vision
Yes
Yes
HLG
Yes
Yes
3D
No
HDMI 2.0 Full Bandwidth
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
HDMI 2.1 Class Bandwidth
No
No
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
Yes
Yes
Wi-Fi Support
Yes (2.4 GHz, 5 GHz)
Yes (2.4 GHz, 5 GHz)
Input Photos
Side Inputs Picture
Rear Inputs Picture
Total Inputs
HDMI
4
4
USB
1
1
Digital Optical Audio Out
1
1
Analog Audio Out 3.5mm
1
1
Analog Audio Out RCA
0
0
Component In
0
0
Composite In
1 (incl. adapter)
1 (adapter required, not incl.)
Tuner (Cable/Ant)
1
1
Ethernet
1
1
DisplayPort
0
0
IR In
0
0
SD/SDHC
0
0
Audio Passthrough
ARC
Yes (HDMI 4)
Yes (HDMI 4)
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
7.7
Frequency Response
Low-Frequency Extension
71.27 Hz
80.00 Hz
Std. Dev. @ 70
4.30 dB
3.25 dB
Std. Dev. @ 80
4.02 dB
3.31 dB
Std. Dev. @ Max
4.85 dB
3.84 dB
Max
89.3 dB SPL
90.3 dB SPL
Dynamic Range Compression
2.14 dB
1.56 dB
Distortion
7.9
8.1
Total Harmonic Distortion
Weighted THD @ 80
0.061
0.033
Weighted THD @ Max
0.326
0.340
IMD @ 80
1.10%
0.60%
IMD @ Max
1.57%
1.95%
Smart Features
Interface
8.0
8.0
Smart TV Picture
Smart OS
Roku TV
Roku TV
Version
9.1.2
9.3.2
Ease of Use
Easy
Easy
Smoothness
Very Smooth
Very Smooth
Time Taken to Select YouTube
4 s
4 s
Time Taken to Change Backlight
2 s
3 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
7.0
7.0
Remote Picture
Size
Small
Small
Voice Control
Search, Some Other Features
Search, Some Other Features
CEC Menu Control
Limited Support
Yes
Other Smart Features
No
No
Remote App
Roku
Roku
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
71 W
71 W
Power Consumption (Max)
238 W
219 W
Firmware
9.1.2 build 6463-88
9.3.2 build 5006-88
Check Price
55"
55"
55R635
Searching
Finding store65"
65Q825
Searching
Finding store65"
65R635
Searching
Finding store75"
75Q825
Searching
Finding store75"
75R635
Searching
Finding store
TCL 8 Series 2019/Q825 QLED
TCL R635
Comments
TCL 8 Series 2019/Q825 QLED vs TCL R635: Main Discussion
What do you think of these products? Let us know below.
Looking for a personalized buying advice from the RTINGS.com experts? Insiders have direct access to buying advice on our insider forum.