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65R646
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65S450F
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What we think

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The PerfectRec TV team Learn more
Updated April 10, 2024·

If you're a gamer or enjoy watching movies, the TCL R646 could be a better choice for its excellent gaming performance and good picture quality. It's also superior in a bright room. On the other hand, if your budget is restrictive, the S450F is more affordable with fair performance across the board but may not be as satisfying for gaming or in brightly lit conditions. Both models have a 65-inch screen and support HDR, but the R646's additional features like higher brightness and better sound quality make it stand out if these are important to you and you're willing to invest more. Give Feedback

this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the TCL R646 (LCD)
  • Very good for bright room
  • Good for dark room
  • Very good for gaming
  • Good for movies & TV
  • Good for news, talk, & other TV
  • Very good for cartoons & animation
  • Good for use as monitor
  • Very good reflections
Advantages of the TCL S450F (LCD)
  • Good for upscaling

Key differences

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Picture Quality

7.9
65R646
65S450F
6.5
8.43/10
CONTRAST
6.428571429/10
7.6/10
COLOR VOLUME SCORE
6.3/10
miniLED FALD
PANEL TYPE
LED
VA
PANEL SUB-TYPE
VA
The TCL R646 (LCD) has good picture quality, while the TCL S450F (LCD) has only fair picture quality.

Movies & TV

7.8
65R646
65S450F
6.0
8.43/10
CONTRAST
6.428571429/10
6.8/10
BLACK UNIFORMITY
9.2/10
5.9/10
UPSCALING
7.5/10
Yes
HDR10 SUPPORT
Yes
Yes
HDR10+ SUPPORT
No
Yes
DOLBY VISION SUPPORT
Yes
The TCL R646 (LCD) is good for movies & TV, while the TCL S450F (LCD) is only fair.

Gaming

8.2
65R646
65S450F
5.7
8.0/10
RESPONSE TIME SCORE
6.0/10
7.6/10
INPUT LAG SCORE
10.0/10
5.3/10
MOTION PROCESSING
4.6/10
70.0/100
GAMING LOCAL DIMMING
10.0/100
8.7/10
GAME HDR BRIGHTNESS SCORE
5.8/10
The TCL R646 (LCD) is very good for gaming, while the TCL S450F (LCD) is poor.

Cartoons & Animation

8.4
65R646
65S450F
6.0
7.6/10
COLOR GAMUT SCORE
5.9/10
7.6/10
COLOR VOLUME SCORE
6.3/10
9.1/10
SDR BRIGHTNESS SCORE
6.3/10
7.2/10
COLORS OUT OF THE BOX SCORE
6.6/10
8.0/10
GRAY UNIFORMITY
5.8/10
The TCL R646 (LCD) is very good for cartoons & animation, while the TCL S450F (LCD) is only fair.

News, Talk, & Other TV

7.5
65R646
65S450F
6.4
9.1/10
SDR BRIGHTNESS SCORE
6.3/10
5.9/10
UPSCALING
7.5/10
The TCL R646 (LCD) is good for news, talk, & other TV, while the TCL S450F (LCD) is only fair.

Bright Room

8.9
65R646
65S450F
6.0
5.3/10
VIEWING ANGLE
5.1/10
9.1/10
SDR BRIGHTNESS SCORE
6.3/10
8.3/10
HDR BRIGHTNESS SCORE
5.6/10
8.1/10
REFLECTIONS SCORE
6.3/10
The TCL R646 (LCD) is very good for bright room, while the TCL S450F (LCD) is only fair.

Cost

$800
65R646
65S450F
$400
Product image
Product image

$200

$400

$600

$800

$1,000

$1,200

The TCL R646 (LCD) has a price of $800 and the TCL S450F (LCD) costs $400.
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Key similarities

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Sports

6.6
65R646
65S450F
6.1
5.3/10
MOTION PROCESSING
4.6/10
120Hz
REFRESH RATE
60Hz
7.6/10
INPUT LAG SCORE
10.0/10
5.9/10
UPSCALING
7.5/10
9.1/10
SDR BRIGHTNESS SCORE
6.3/10
Yes
HLG SUPPORT
Yes
The TCL R646 (LCD) and TCL S450F (LCD) are both only fair for sports.

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We’re constantly working to improve.

How the TCL R646 (LCD) and the TCL S450F (LCD) compare to other TVs

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Spec Comparison

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TCL R646 (LCD)TCL S450F (LCD)
TCL R646 (LCD)TCL S450F (LCD)

GENERAL

Price
$800
$400
Brand
TCLTCL
Release Date
August 2, 2021July 1, 2023
Full name
65R64665S450F
Screen Size
65"65"
Screen Resolution
4K4K

TV FEATURES

Operating System
Android TVFire OS
Sound Quality Score
10/106/10
NextGen Ready
NoNo
HDMI Ports
44
Coax Ports
11

DISPLAY QUALITY SCORES

Picture Quality Score
7.9/106.6/10
Bright Room Score
9/106/10
Gaming Score
8.2/105.7/10
Movies & TV Score
7.8/106/10
Sports Score
6.6/106.2/10

PHYSICAL

Dimensions w/o Stand (H x W x D)
33.3" x 56.9" x 3.6"32.8" x 56.9" x 3.2"
Dimensions with Stand (H x W)
35.7" x 56.9"34.8" x 5.9"
Weight without Stand
63.5 lbs30.9 lbs
VESA Mount
300 x 300200 x 200

DISPLAY

Color Depth
10 bit8 bit
Black Frame Insertion
YesNo
Auto Low Latency Mode
YesYes
Contrast
8.4/106.4/10
Local Dimming
6.5/103/10

SOUND

Speaker Setup
2.02.0
Speaker Power
30 W20 W
Dolby Atmos
YesYes
DTS:X
Yes, Bypass onlyNo

Get a great deal on the TCL R646 (LCD) or the TCL S450F (LCD)

About TCL

TCL, the highly recognizable TV brand from China, has firmly established itself as the second-largest manufacturer in terms of sales volume. Renowned for striking an impressive balance between affordability, picture quality, and design, TCL TVs deliver a compelling overall package. While they have traditionally excelled in the low-end and midrange TV segments, TCL has recently made remarkable strides in the realm of high-end televisions, introducing impressive models that rival top competitors. Most TCL TVs use Roku software which is very user friendly and easy to use, but they have a few other models that use Google TV which has the largest app selection, but is not as user friendly as Roku.

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Why trust us

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This information was produced and vetted by the PerfectRec TVs team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest TV information and makes it digestible for you.

By the numbers

385
TVs evaluated
33,110
TVs stats compiled
21
Proprietary TVs ratings developed
73,230
Recommendations made
10,985
Consumer hours saved

About the TV team

Joe Golden, Ph.D

CEO and TVs Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.

Jason Lew

Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.

Chandradeep Chowdhury

Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.

Jaime Roldán

TVs Expert
Jaime is a Colombia-based TV expert. He is an electronics engineer with 8 years of experience in the telecom sector and has been making TV recommendations for 12 years.

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