Products
TCL Q651G
TCL QM6K
Tested using Methodology v2.0.1
Updated Nov 13, 2025 07:35 PM
SEE PRICE
BestBuy.com
Tested using Methodology v2.0.1
Updated Nov 12, 2025 08:04 PM
SEE PRICE
BestBuy.com
Resolution4k
Native Refresh Rate
60Hz
TypeLED
Sub-Type
VA
Dolby Vision
Yes
Screen Finish
Glossy
Resolution4k
Native Refresh Rate
144Hz
TypeLED
Sub-Type
VA
Dolby Vision
Yes
Screen Finish
Glossy
Our Verdict
TCL Q651G
TCL QM6K
The TCL QM6K is significantly better than the TCL Q651G. The newer QM6K is brighter, it has better contrast, and it has a full array local dimming feature, all of which contribute to much better picture quality overall. The QM6K also has better gaming features, with a higher maximum refresh rate at lower resolutions and a wider VRR range with 4k signals. The biggest difference with VRR is that the refresh rate range is wide enough at 4k to allow it to work with Low Framerate Compensation, which keeps the image tear-free even when your framerate drops a bit.
Variants
- 43Q651G (43")
- 50Q651G (50")
- 55Q651G (55")
- 65Q651G (65")
- 75Q651G (75")
- 85Q651G (85")
- 98Q651G (98")
- 55QM6K (55")
- 65QM6K (65")
- 75QM6K (75")
- 85QM6K (85")
- 98QM6K (98")
Check Price
43"
43Q651G
SEE PRICE
BestBuy.com
43"
50"
50Q651G
SEE PRICE
BestBuy.com
50"
55"
55Q651G
SEE PRICE
BestBuy.com
55"
55QM6K
SEE PRICE
BestBuy.com
65"
65Q651G
SEE PRICE
BestBuy.com
65"
65QM6K
SEE PRICE
BestBuy.com
75"
75Q651G
SEE PRICE
BestBuy.com
75"
75QM6K
SEE PRICE
BestBuy.com
85"
85Q651G
SEE PRICE
BestBuy.com
85"
85QM6K
SEE PRICE
BestBuy.com
98"
98Q651G
SEE PRICE
BestBuy.com
98"
98QM6K
SEE PRICE
BestBuy.com
Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
5.9
7.1
HDR Brightness
5.0
6.0
Contrast
5.4
8.1
Lighting Zone Precision
0.0
6.5
SDR Brightness
6.1
7.5
Black Uniformity
9.0
7.5
Full Comparison
Brightness
HDR Brightness
5.0
6.0
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
367 cd/m²
409 cd/m²
Yellow Skyscraper (~700 cd/m²)
291 cd/m²
276 cd/m²
Landscape Pool (~300 cd/m²)
170 cd/m²
198 cd/m²
Peak 2% Window
368 cd/m²
544 cd/m²
Peak 10% Window
367 cd/m²
698 cd/m²
Peak 25% Window
368 cd/m²
890 cd/m²
Peak 50% Window
367 cd/m²
697 cd/m²
Peak 100% Window
367 cd/m²
453 cd/m²
Sustained 2% Window
367 cd/m²
468 cd/m²
Sustained 10% Window
367 cd/m²
694 cd/m²
Sustained 25% Window
367 cd/m²
752 cd/m²
Sustained 50% Window
367 cd/m²
691 cd/m²
Sustained 100% Window
366 cd/m²
452 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.034
HDR Brightness In Game Mode
5.0
6.0
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
367 cd/m²
412 cd/m²
Yellow Skyscraper (~700 cd/m²)
289 cd/m²
246 cd/m²
Landscape Pool (~300 cd/m²)
168 cd/m²
232 cd/m²
Peak 2% Window
373 cd/m²
468 cd/m²
Peak 10% Window
371 cd/m²
684 cd/m²
Peak 25% Window
370 cd/m²
758 cd/m²
Peak 50% Window
369 cd/m²
693 cd/m²
Peak 100% Window
368 cd/m²
450 cd/m²
Sustained 2% Window
371 cd/m²
466 cd/m²
Sustained 10% Window
370 cd/m²
677 cd/m²
Sustained 25% Window
369 cd/m²
744 cd/m²
Sustained 50% Window
368 cd/m²
688 cd/m²
Sustained 100% Window
367 cd/m²
450 cd/m²
Automatic Brightness Limiting (ABL)
0.001
0.033
SDR Brightness
6.1
7.5
Real Scene Peak Brightness
350 cd/m²
429 cd/m²
Peak 2% Window
374 cd/m²
513 cd/m²
Peak 10% Window
372 cd/m²
642 cd/m²
Peak 25% Window
371 cd/m²
814 cd/m²
Peak 50% Window
370 cd/m²
646 cd/m²
Peak 100% Window
370 cd/m²
418 cd/m²
Sustained 2% Window
372 cd/m²
442 cd/m²
Sustained 10% Window
371 cd/m²
635 cd/m²
Sustained 25% Window
370 cd/m²
696 cd/m²
Sustained 50% Window
369 cd/m²
640 cd/m²
Sustained 100% Window
369 cd/m²
418 cd/m²
Automatic Brightness Limiting (ABL)
0.001
0.031
Black Level
Contrast
5.4
8.1
Contrast Picture
Contrast
6,647 : 1
118,059 : 1
Native Contrast
6,647 : 1
6,471 : 1
Lighting Zone Precision
0.0
6.5
Lighting Zone Precision Picture
Lighting Zone Transitions
0.0
7.0
Preferred LD Video, Moving Object
Local Dimming
No
Yes
Backlight
Direct
Full-Array
Dimming Zone Count Of The Tested TV
N/A
312
Contrast And Dark Details In Game Mode
4.5
7.0
Lighting Zone Precision Photo In Game Mode
Preferred LD Video, Moving Object In Game Mode
Game Transitions With VRR And Preferred LD
Black Uniformity
9.0
7.5
Black Uniformity Picture With Preferred Local Dimming
Std. Dev.
N/A
0.972%
Native Black Uniformity Picture
Native Std. Dev.
0.419%
0.477%
Color
SDR Color Volume
6.6
6.7
DCI-P3 Gamut Rings
CIELAB DCI-P3 Coverage
83.01%
83.71%
BT.2020 Gamut Rings
CIELAB BT.2020 Coverage
56.48%
57.93%
HDR Color Volume
6.3
6.9
P3 Color Volume ITP Picture
1,000 cd/m² DCI P3 Coverage ITP
58.3%
68.2%
2020 Color Volume ITP Picture
10,000 cd/m² BT.2020 Coverage ITP
26.3%
30.5%
White Luminance
367 cd/m²
477 cd/m²
Red Luminance
77 cd/m²
103 cd/m²
Green Luminance
263 cd/m²
343 cd/m²
Blue Luminance
26 cd/m²
29 cd/m²
Cyan Luminance
289 cd/m²
374 cd/m²
Magenta Luminance
103 cd/m²
119 cd/m²
Yellow Luminance
339 cd/m²
415 cd/m²
SDR Pre-Calibration Color Accuracy
8.3
7.6
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE 2000
3.31
4.15
Color dE 2000
1.96
2.42
Gamma
2.25
2.23
Color Temperature
6,473 K
6,456 K
Picture Mode
Movie
Movie
Color Temp Setting
Warm -5
warm 5
Gamma Setting
2.2
2,2
SDR Post-Calibration Color Accuracy
9.4
9.5
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE 2000
0.45
0.26
Color dE 2000
1.26
1.24
Gamma
2.15
2.20
Color Temperature
6,501 K
6,492 K
White Balance Calibration
20 point
20 point
Color Calibration
Yes
Yes
HDR Pre-Calibration Color Accuracy
5.9
8.3
HDR Pre White Balance Picture
HDR Pre Color Picture
White Balance dE ITP
13.19
8.20
Color dE ITP
11.2
6.3
Color Temperature
7,633 K
6,609 K
Picture Mode
Movie
Movie
HDR Post-Calibration Color Accuracy
7.2
9.1
HDR Post White Balance Picture
HDR Post Color Picture
White Balance dE ITP
10.66
5.70
Color dE ITP
9.80
4.90
Color Temperature
6,804 K
6,511 K
Processing
PQ EOTF Tracking
5.6
7.8
PQ EOTF Graph
600 Nit Tracking Delta
0.0139
0.0074
1000 Nit Tracking Delta
0.0139
0.0054
4000 Nit Tracking Delta
0.0139
0.0058
Low-Quality Content Smoothing
6.0
7.0
Low-Quality Content Smoothing Picture
Smoothing
5.5
7.0
Detail Preservation
7.0
7.0
Upscaling: Sharpness Processing
5.5
6.5
Sharpness Picture - 480p
HDR Native Gradient
7.0
6.8
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
6.0
6.0
50% Red To 100% Red
8.0
8.0
100% Black To 50% Green
6.0
6.0
50% Green To 100% Green
8.0
6.0
100% Black To 50% Blue
8.0
8.0
50% Blue To 100% Blue
8.0
8.0
Game Mode Responsiveness
Input Lag
8.3
9.0
1080p @ 60Hz
10.4 ms
10.4 ms
1080p @ 60Hz Outside Game Mode
161.4 ms
108.7 ms
1080p @ 120Hz
6.2 ms
5.6 ms
1080p @ Max Refresh Rate
6.2 ms
3.1 ms
4k @ 60Hz
10.2 ms
10.2 ms
4k @ 60Hz @ 4:4:4
10.7 ms
9.9 ms
4k @ 60Hz Outside Game Mode
160.6 ms
108.0 ms
4k @ 60Hz With Interpolation
160.6 ms
128.8 ms
4k @ 120Hz
N/A
5.5 ms
4k @ Max Refresh Rate
10.2 ms
4.7 ms
8k @ 60Hz
N/A
N/A
Supported Resolutions
7.2
9.5
Resolution
4k
4k
480p @ 59.94Hz (Widescreen)
Yes
Yes
720p @ 59.94Hz
Yes
Yes
1080p @ 60Hz @ 4:4:4
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p Maximum Refresh Rate
120 Hz
288 Hz
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
No
Yes
4k @ 120Hz @ 4:4:4
No
Yes
4k Maximum Refresh Rate
60 Hz
144 Hz
8k @ 30Hz Or 24Hz
No
No
8k @ 60Hz
No
No
Variable Refresh Rate
6.4
8.8
Native Refresh Rate
60Hz
144Hz
Variable Refresh Rate
Yes
Yes
HDMI Forum VRR
Yes
Yes
FreeSync
Yes
Yes
G-SYNC Compatible
Yes
Yes
4k VRR Maximum
60 Hz
144 Hz
4k VRR Minimum
48 Hz
< 20 Hz
1080p VRR Maximum
120 Hz
288 Hz
1080p VRR Minimum
< 20 Hz
< 20 Hz
VRR + Local Dimming
No Local Dimming
Yes
CAD In Game Mode @ Max Refresh Rate
2.2
7.1
Pursuit Photo Max Refresh
CAD Heatmap Max Refresh
Transition At Max Refresh
0 to 31
0 to 31
Avg. CAD
590
201
Best 10% CAD
188
101
Worst 10% CAD
909
307
CAD In Game Mode @ 120Hz
0.0
6.9
Pursuit Photo 120Hz
CAD Heatmap 120Hz
Transition At 120Hz
0 to 31
Avg. CAD
N/A
214
Best 10% CAD
N/A
102
Worst 10% CAD
N/A
329
CAD In Game Mode @ 60Hz
2.2
6.3
Pursuit Photo 60Hz
CAD Heatmap 60Hz
Transition 60Hz
0 to 31
0 to 31
Avg. CAD
590
273
Best 10% CAD
188
96
Worst 10% CAD
909
442
PS5 Compatibility
PS5 Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
4k @ 120Hz
No
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
No
Yes
1440p @ 120Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
HDR
Yes
Yes
VRR
Yes
Yes
Motion Handling
Stutter
8.8
7.5
Frame Hold Time @ 24 fps
15.9 ms
30.2 ms
Frame Hold Time @ 60 fps
0.0 ms
5.5 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
Response Time
4.9
6.8
Pursuit Photo 60Hz
Response Time Heatmap 60Hz
Transition At 60Hz
0 to 31
0 to 31
First Response Time
25.8 ms
11.2 ms
Total Response Time
7.0 ms
11.5 ms
Worst 10% Response Time
37.0 ms
24.4 ms
Flicker
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
150 Hz
10,400 Hz
Black Frame Insertion (BFI)
BFI Picture
BFI Frequency Picture
Optional BFI
No
Yes
Min Flicker For 60 fps
150 Hz
60 Hz
60Hz For 60 fps
No
Yes
120Hz For 120 fps
No
Yes
Min Flicker For 60 fps In Game Mode
150 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)
No
Yes
Reflections
Direct Reflections
5.8
5.2
Ring Light Picture
Direct Reflections Graph
Peak Direct Reflection Intensity
57.9%
67.5%
Screen Finish
Glossy
Glossy
Ambient Black Level Raise
9.0
9.0
Black Level Raise Picture
Bright Room Black Level Raise Graph
Black Luminance @ 0 lx
0.06 cd/m²
0.00 cd/m²
Black Luminance @ 1000 lx
0.39 cd/m²
0.43 cd/m²
Total Reflected Light
5.7
6.6
Bright Room Off Picture
Ring Picture Total Reflection
Total Reflected Light Intensity
29,136% ⋅ pixel
22,862% ⋅ pixel
Diffraction Artifacts
Yes
Yes
Ambient Color Saturation
6.8
6.9
Bright Room Color Volume Graph
Low-Luminance Colors @ 1000 lx
59.32%
62.27%
Mid-Luminance Colors @ 1000 lx
56.66%
54.81%
High-Luminance Colors @ 1000 lx
45.53%
39.71%
Panel
Viewing Angle
6.4
6.4
Viewing Angle Video
Chroma Graph
Color Washout
26°
32°
Hue Graph
Color Shift
34°
47°
Lightness Graph
Brightness Loss
29°
31°
Black Level Raise
21°
19°
Gamma Shift
20°
16°
Gray Uniformity
5.6
6.6
50% Uniformity Picture
50% Std. Dev.
5.450%
2.416%
50% DSE
0.208%
0.189%
5% Uniformity Picture
5% Std. Dev.
0.575%
1.186%
5% DSE
0.106%
0.098%
Panel Technology
Spectral Power Distribution
Pixels Picture
Type
LED
LED
Sub-Type
VA
VA
Subpixel Layout
BGR
BGR
Inputs
Input Specifications
Side Inputs Picture
Rear Inputs Picture
HDMI
3 (3x HDMI 2.0)
4 (2x HDMI 2.0, 2x HDMI 2.1)
HDMI 2.1 Rated Speed
No HDMI 2.1
48 Gbps
ATSC Tuner
1.0
1.0
USB Ports
1
2
USB 3.0
No
Yes (1)
Audio Out 3.5mm
1
0
Wi-Fi
Yes (2.4 GHz, 5 GHz)
Yes (2.4 GHz, 5 GHz)
Ethernet Speed
100 Mbps
100 Mbps
Composite In
1 (Adapter Required, Not Incl.)
0
Digital Optical Audio Out
1
1
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
Yes
eARC: DTS-HD Master Audio 7.1
Yes
Yes
eARC: LPCM Channels (Bitstream)
7.1
7.1
ARC: Dolby Digital 5.1
Yes
Yes
ARC: DTS 5.1
Yes
Yes
Optical: Dolby Digital 5.1
Yes
Yes
Optical: DTS 5.1
Yes
Yes
HDR Format Support
HDR10
Yes
Yes
HDR10+
Yes
Yes
Dolby Vision
Yes
Yes
HLG
Yes
Yes
Design
Style
Design Picture
Curved
No
No
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 400x400
VESA 300x300
Borders
Borders Picture
Borders
0.31" (0.8 cm)
0.47" (1.2 cm)
Thickness
Thickness Picture
Max Thickness
2.83" (7.2 cm)
2.24" (5.7 cm)
Build Quality
7.0
7.0
Build quality picture
Smart Features
Interface
Smart TV Picture
Smart OS
Google TV
Google TV
Version
12
12
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
Remote
Remote Picture
Voice Control
Yes
Yes
TV Controls
Controls Picture
Mute Switch
No
Yes
In The Box
In The Box Picture
Misc
Power Consumption
52 W
51 W
Power Consumption (Max)
191 W
187 W
Firmware
V8-R75PT01-LF1V174.000660
V8-001202-LF139.001386
Sound Quality
Frequency Response
6.8
6.5
Frequency Response
Low-Frequency Extension
113.14 Hz
100.79 Hz
Std. Dev. @ 70
4.24 dB
2.72 dB
Std. Dev. @ 80
4.26 dB
3.21 dB
Std. Dev. @ Max
5.33 dB
5.33 dB
Max
95.0 dB SPL
85.3 dB SPL
Dynamic Range Compression
2.79 dB
4.27 dB
Digital Room Correction
No
Yes
Check Price
43"
43Q651G
SEE PRICE
BestBuy.com
43"
50"
50Q651G
SEE PRICE
BestBuy.com
50"
55"
55Q651G
SEE PRICE
BestBuy.com
55"
55QM6K
SEE PRICE
BestBuy.com
65"
65Q651G
SEE PRICE
BestBuy.com
65"
65QM6K
SEE PRICE
BestBuy.com
75"
75Q651G
SEE PRICE
BestBuy.com
75"
75QM6K
SEE PRICE
BestBuy.com
85"
85Q651G
SEE PRICE
BestBuy.com
85"
85QM6K
SEE PRICE
BestBuy.com
98"
98Q651G
SEE PRICE
BestBuy.com
98"
98QM6K
SEE PRICE
BestBuy.com
TCL Q651G
TCL QM6K
Comments
TCL Q651G vs TCL QM6K: 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.