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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
TCL 6 Series/R648 2021 8k QLED vs Samsung QN900B 8k QLED
Side-by-Side Comparison
Products
TCL 6 Series/R648 2021 8k QLED
Samsung QN900B 8k QLED
Tested using Methodology v1.11
Updated Feb 07, 2025 06:36 PM
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Updated Sep 11, 2024 01:19 PM
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Resolution8k
TypeLED
Sub-TypeVA
Resolution8k
TypeLED
Sub-TypeVA
Variants
- 65R648 (65")
- 75R648 (75")
- QN65QN900BFXZA (65")
- QN75QN900BFXZA (75")
- QN85QN900BFXZA (85")
Our Verdict
TCL 6 Series/R648 2021 8k QLED
Samsung QN900B 8k QLED
The Samsung QN900B 8k QLED is slightly better than the TCL 6 Series/R648 2021 8k QLED. The Samsung gets a lot brighter, especially in HDR, and small highlights stand out better. The TCL has a higher native contrast ratio, so blacks look better with local dimming disabled, but the Samsung TV's local dimming feature is more effective at boosting contrast. The Samsung is also better for gaming, with a faster response time and support for HDMI 2.1 bandwidth on all four inputs instead of just two on the TCL.
Check Price
65"
65R648
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QN65QN900BFXZA
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75R648
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QN75QN900BFXZA
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QN85QN900BFXZA
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Threshold
Mixed Usage
7.9
8.2
Upscaling: Sharpness Processing
4.0
7.5
Full Comparison
Design
Style
Design Picture
Curved
No
No
Accelerated Longevity Test
Uniformity Pictures
Month 24
50% Gray
Longevity Graph
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 400x400
VESA 400x300
Borders
Borders Picture
Borders
0.39" (1.0 cm)
0.08" (0.2 cm)
Thickness
Thickness Picture
Max Thickness
2.99" (7.6 cm)
0.63" (1.6 cm)
Build Quality
7.5
8.0
Build quality picture
Picture Quality
Contrast
8.9
8.8
Contrast Picture
Contrast
134,133 : 1
191,400 : 1
Native Contrast
3,065 : 1
1,532 : 1
Blooming
7.5
8.0
Blooming Photo
Lighting Zone Transitions
7.5
5.5
Preferred LD Video, Moving Object
Local Dimming
Yes
Yes
Backlight
Full-Array
Full-Array
Dimming Zones Count Of Tested TV
160
1,344
Contrast And Dark Details In Game Mode
8.0
8.0
Blooming Photo In Game Mode
Preferred LD Video, Moving Object In Game Mode
Game Transitions With VRR And Preferred LD
HDR Brightness
8.2
9.1
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
597 cd/m²
1,042 cd/m²
Yellow Skyscraper (~700 cd/m²)
353 cd/m²
655 cd/m²
Landscape Pool (~300 cd/m²)
255 cd/m²
340 cd/m²
Peak 2% Window
770 cd/m²
1,417 cd/m²
Peak 10% Window
1,067 cd/m²
1,432 cd/m²
Peak 25% Window
1,154 cd/m²
1,113 cd/m²
Peak 50% Window
817 cd/m²
665 cd/m²
Peak 100% Window
626 cd/m²
433 cd/m²
Sustained 2% Window
756 cd/m²
1,338 cd/m²
Sustained 10% Window
1,045 cd/m²
1,359 cd/m²
Sustained 25% Window
1,137 cd/m²
1,087 cd/m²
Sustained 50% Window
815 cd/m²
664 cd/m²
Sustained 100% Window
624 cd/m²
431 cd/m²
Automatic Brightness Limiting (ABL)
0.032
0.066
HDR Brightness In Game Mode
8.2
8.8
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
597 cd/m²
667 cd/m²
Yellow Skyscraper (~700 cd/m²)
348 cd/m²
722 cd/m²
Landscape Pool (~300 cd/m²)
256 cd/m²
310 cd/m²
Peak 2% Window
771 cd/m²
1,370 cd/m²
Peak 10% Window
1,069 cd/m²
1,371 cd/m²
Peak 25% Window
1,161 cd/m²
1,021 cd/m²
Peak 50% Window
824 cd/m²
622 cd/m²
Peak 100% Window
632 cd/m²
420 cd/m²
Sustained 2% Window
761 cd/m²
1,292 cd/m²
Sustained 10% Window
1,054 cd/m²
1,296 cd/m²
Sustained 25% Window
1,148 cd/m²
998 cd/m²
Sustained 50% Window
822 cd/m²
620 cd/m²
Sustained 100% Window
631 cd/m²
418 cd/m²
Automatic Brightness Limiting (ABL)
0.032
0.066
PQ EOTF Tracking
8.4
6.9
PQ EOTF Graph
600 Nit Tracking Delta
0.0102
0.0277
1000 Nit Tracking Delta
0.0104
0.0277
4000 Nit Tracking Delta
0.0105
0.0242
SDR Brightness
8.9
8.9
Real Scene Peak Brightness
687 cd/m²
724 cd/m²
Peak 2% Window
724 cd/m²
1,424 cd/m²
Peak 10% Window
1,039 cd/m²
1,478 cd/m²
Peak 25% Window
1,123 cd/m²
1,174 cd/m²
Peak 50% Window
795 cd/m²
693 cd/m²
Peak 100% Window
608 cd/m²
417 cd/m²
Sustained 2% Window
720 cd/m²
1,357 cd/m²
Sustained 10% Window
1,018 cd/m²
1,398 cd/m²
Sustained 25% Window
1,106 cd/m²
1,059 cd/m²
Sustained 50% Window
792 cd/m²
690 cd/m²
Sustained 100% Window
606 cd/m²
415 cd/m²
Automatic Brightness Limiting (ABL)
0.033
0.068
Color Gamut
8.6
8.0
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
90.95%
90.09%
DCI P3 uv
96.19%
93.71%
Color Gamut Rec.2020 Picture
Rec 2020 xy
75.03%
65.53%
Rec 2020 uv
82.71%
71.26%
Color Volume
8.3
8.6
P3 Color Volume ITP Picture
1,000 cd/m² DCI P3 Coverage ITP
77.1%
86.5%
2020 Color Volume ITP Picture
10,000 cd/m² Rec 2020 Coverage ITP
39.1%
42.2%
White Luminance
743 cd/m²
1,392 cd/m²
Red Luminance
156 cd/m²
259 cd/m²
Green Luminance
528 cd/m²
949 cd/m²
Blue Luminance
64 cd/m²
89 cd/m²
Cyan Luminance
592 cd/m²
1,023 cd/m²
Magenta Luminance
221 cd/m²
381 cd/m²
Yellow Luminance
683 cd/m²
1,269 cd/m²
Pre Calibration
8.9
8.9
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
1.97
1.44
Color dE
0.96
1.32
Gamma
2.13
2.21
Color Temperature
6,513 K
6,242 K
Picture Mode
Movie
Movie
Color Temp Setting
Warm
Warm 2
Gamma Setting
2.2
2.2
Post Calibration
9.7
9.5
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.17
0.31
Color dE
0.57
1.13
Gamma
2.20
2.21
Color Temperature
6,503 K
6,486 K
White Balance Calibration
11 point
20 point
Color Calibration
Yes
Yes
Gray Uniformity
7.4
7.3
50% Uniformity Picture
50% Std. Dev.
1.286%
2.349%
50% DSE
0.202%
0.223%
5% Uniformity Picture
5% Std. Dev.
0.965%
0.554%
5% DSE
0.127%
0.092%
Black Uniformity
7.8
9.1
Black Uniformity Picture With Preferred Local Dimming
Std. Dev.
0.829%
0.388%
Native Black Uniformity Picture
Native Std. Dev.
1.509%
1.846%
Viewing Angle
5.2
6.9
Viewing Angle Video
Chroma Graph
Color Washout
21°
34°
Hue Graph
Color Shift
31°
21°
Lightness Graph
Brightness Loss
35°
48°
Black Level Raise
14°
70°
Gamma Shift
12°
26°
Reflections
8.4
8.7
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Semi-gloss
Glossy
Total Reflections
3.2%
2.6%
Indirect Reflections
1.0%
1.6%
Calculated Direct Reflections
2.2%
1.1%
HDR Native Gradient
7.5
7.0
HDR Gradient Picture
100% Black to 50% Gray
4.0
6.0
50% Gray to 100% White
8.0
6.0
100% Black to 50% Red
8.0
8.0
50% Red to 100% Red
10
8.0
100% Black to 50% Green
6.0
8.0
50% Green to 100% Green
8.0
4.0
100% Black to 50% Blue
6.0
10
50% Blue to 100% Blue
10
6.0
Low-Quality Content Smoothing
5.6
6.0
Low-Quality Content Smoothing Picture
Smoothing
5.0
5.5
Detail Preservation
7.0
7.0
Upscaling: Sharpness Processing
4.0
7.5
Sharpness Picture - 480p
Pixels
Pixels Picture
Subpixel Layout
BGR
BGR
Type
LED
LED
Sub-Type
VA
VA
Motion
Response Time
8.6
9.0
Motion Blur Picture
Response Time Chart
80% Response Time
3.6 ms
2.7 ms
100% Response Time
9.5 ms
7.2 ms
Flicker-Free
9.9
9.9
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
960 Hz
960 Hz
Black Frame Insertion (BFI)
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
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
6.7
6.2
Frame Hold Time @ 24 fps
32.2 ms
34.4 ms
Frame Hold Time @ 60 fps
7.2 ms
9.4 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
9.4
9.5
Native Refresh Rate
120 Hz
144 Hz
Variable Refresh Rate
Yes
Yes
HDMI Forum VRR
Yes
Yes
FreeSync
Yes
Yes
G-SYNC Compatible
Yes
Yes
4k VRR Maximum
120 Hz
144 Hz
4k VRR Minimum
< 20 Hz
< 20 Hz
1080p VRR Maximum
120 Hz
144 Hz
1080p VRR Minimum
< 20 Hz
< 20 Hz
1440p VRR Maximum
120 Hz
144 Hz
1440p VRR Minimum
< 20 Hz
< 20 Hz
VRR + Local Dimming
Yes
Yes
Inputs
Input Lag
9.4
9.7
1080p @ 60Hz
15.3 ms
10.4 ms
1080p @ 60Hz Outside Game Mode
112.3 ms
128.0 ms
1080p @ 120Hz
6.3 ms
6.0 ms
1080p @ 144Hz
N/A
6.0 ms
1440p @ 60Hz
15.2 ms
10.6 ms
1440p @ 120Hz
6.3 ms
5.9 ms
1440p @ 144Hz
N/A
5.8 ms
4k @ 60Hz
15.1 ms
10.4 ms
4k @ 60Hz + 10-Bit HDR
15.2 ms
10.5 ms
4k @ 60Hz @ 4:4:4
15.1 ms
10.5 ms
4k @ 60Hz Outside Game Mode
110.6 ms
101.4 ms
4k @ 60Hz With Interpolation
103.9 ms
26.8 ms
4k @ 120Hz
6.2 ms
5.9 ms
4k @ 144Hz
N/A
5.8 ms
8k @ 60Hz
15.2 ms
10.6 ms
Supported Resolutions
10
10
Resolution
8k
8k
480p @ 59.94Hz (Widescreen)
Yes
Yes
720p @ 59.94Hz
Yes
Yes
1080p @ 60Hz @ 4:4:4
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 144Hz
No
Yes
1440p @ 60Hz
Yes (forced resolution required)
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 144Hz
No
Yes
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
Yes
Yes
4k @ 120Hz @ 4:4:4
Yes
Yes
4k @ 144Hz
No
Yes
8k @ 30Hz or 24Hz
Yes
Yes
8k @ 60Hz
Yes
Yes
PS5 Compatibility
PS5 Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
4k @ 120Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
HDR
Yes
Yes
VRR
Yes
Yes
Xbox Series X|S Compatibility
Xbox Series X Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
4k @ 120Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
HDR
Yes
Yes
VRR
Yes
Yes
Inputs Specifications
HDR10
Yes
Yes
HDR10+
No
Yes
Dolby Vision
Yes
No
HLG
Yes
Yes
HDMI 2.0 Full Bandwidth
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
HDMI 2.1 Class Bandwidth
Yes (HDMI 1,2)
Yes (HDMI 1,2,3,4)
CEC
Yes
Yes
HDCP 2.2
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
ATSC Tuner
1.0
3.0 (NEXTGEN TV)
USB 3.0
No
No
Variable Analog Audio Out
Yes
No
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
3
Digital Optical Audio Out
1
1
Analog Audio Out 3.5mm
1
0
Analog Audio Out RCA
0
0
Component In
0
0
Composite In
0
0
Tuner (Cable/Ant)
1
1
Ethernet
1
1
DisplayPort
0
0
IR In
0
0
Audio Passthrough
ARC/eARC Port
eARC
eARC
eARC: Dolby Atmos Over Dolby Digital Plus
Yes
Yes
eARC: Dolby Digital Plus 7.1
Yes
Yes
eARC: LPCM 7.1 Over Dolby MAT
Yes
Yes
eARC: Dolby TrueHD 7.1
Yes
Yes
eARC: DTS:X Over DTS-HD MA
Yes
No
eARC: DTS-HD Master Audio 7.1
Yes
No
eARC: LPCM Channels (Bitstream)
2.0
7.1
ARC: Dolby Digital 5.1
Yes
Yes
ARC: DTS 5.1
Yes
No
Optical: Dolby Digital 5.1
Yes
Yes
Optical: DTS 5.1
Yes
No
Sound Quality
Frequency Response
7.4
7.3
Frequency Response
Low-Frequency Extension
75.51 Hz
106.79 Hz
Std. Dev. @ 70
4.13 dB
2.42 dB
Std. Dev. @ 80
4.13 dB
2.12 dB
Std. Dev. @ Max
4.66 dB
2.66 dB
Max
93.8 dB SPL
88.9 dB SPL
Dynamic Range Compression
4.40 dB
3.66 dB
Distortion
6.9
7.5
Total Harmonic Distortion
Weighted THD @ 80
0.127
0.182
Weighted THD @ Max
0.962
1.137
IMD @ 80
0.52%
0.63%
IMD @ Max
6.85%
1.19%
Smart Features
Interface
8.0
8.5
Smart TV Picture
Smart OS
Roku TV
Tizen
Version
10.0.2
2022
Ease of Use
Easy
Easy
Smoothness
Very Smooth
Very Smooth
Time Taken to Select YouTube
4 s
2 s
Time Taken to Change Backlight
4 s
5 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
8.5
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
7.0
8.5
Remote Picture
Size
Medium
Small
Voice Control
Search, Some Other Features
Many Features
CEC Menu Control
Yes
Yes
Other Smart Features
No
Yes
Remote App
Roku
Samsung SmartThings
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
130 W
124 W
Power Consumption (Max)
290 W
309 W
Firmware
10.0.2 build 4264-AH
1304
Check Price
65"
65R648
Searching
Finding store65"
QN65QN900BFXZA
Searching
Finding store75"
75R648
Searching
Finding store75"
QN75QN900BFXZA
Searching
Finding store85"
QN85QN900BFXZA
Searching
Finding store
TCL 6 Series/R648 2021 8k QLED
Samsung QN900B 8k QLED
Comments
TCL 6 Series/R648 2021 8k QLED vs Samsung QN900B 8k QLED: Main Discussion
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