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Updated January 10, 2024·
The TCL R646 is a less expensive choice with great overall picture quality, especially in bright rooms, and excels in gaming performance. It features a miniLED backlight and a VA panel type, which provides better contrast. However, its viewing angle is relatively limited, which might be a concern in a wide seating arrangement. The Vizio Quantum Pro is more expensive and offers good picture quality, though slightly lower in comparison, with a better performance in color accuracy. It includes an IPS panel, benefiting from a wider viewing angle at the cost of contrast. It also has a lower response time, which might not be as preferred for fast-paced gaming but supports voice commands for accessibility. 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
- Good for movies & TV
- Good for news, talk, & other TV
- Very good for cartoons & animation
Advantages of the Vizio Quantum Pro (LCD)
- Good viewing angle
Key differences
Picture Quality
7.9
7.2
8.43/10
CONTRAST
5.64/10
7.6/10
COLOR VOLUME SCORE
8.2/10
miniLED FALD
PANEL TYPE
LED FALD
VA
PANEL SUB-TYPE
IPS
The TCL R646 (LCD) and Vizio Quantum Pro (LCD) both have good picture quality, though the TCL R646 (LCD) has somewhat better picture quality.
Movies & TV
7.8
6.6
8.43/10
CONTRAST
5.64/10
6.8/10
BLACK UNIFORMITY
5.4/10
5.9/10
UPSCALING
5.7/10
Yes
HDR10 SUPPORT
Yes
Yes
HDR10+ SUPPORT
Yes
Yes
DOLBY VISION SUPPORT
Yes
The TCL R646 (LCD) is good for movies & TV, while the Vizio Quantum Pro (LCD) is only fair.
The TCL R646 excels in contrast and black uniformity, which are essential for deep blacks and overall picture quality in movies and cinematic TV, outperforming the Vizio Quantum Pro in these areas. Although the Vizio Quantum Pro offers better viewing angles, it doesn't provide as strong contrast or black uniformity, resulting in a less optimal experience for movies and cinematic content.
Cartoons & Animation
8.4
7.5
7.6/10
COLOR GAMUT SCORE
8.0/10
7.6/10
COLOR VOLUME SCORE
8.2/10
9.1/10
SDR BRIGHTNESS SCORE
8.9/10
7.2/10
COLORS OUT OF THE BOX SCORE
6.7/10
8.0/10
GRAY UNIFORMITY
5.9/10
The TCL R646 (LCD) is very good for cartoons & animation, while the Vizio Quantum Pro (LCD) is good.
The TCL R646 displays cartoons and animations well with colors that are good right out of the box and a good color gamut, ensuring a wide range of hues. Conversely, the Vizio Quantum Pro also performs competently, but with somewhat less accurate colors initially, although it has a very good color gamut and color volume which may translate to more vibrant scenes once calibrated.
News, Talk, & Other TV
7.5
6.6
9.1/10
SDR BRIGHTNESS SCORE
8.9/10
5.9/10
UPSCALING
5.7/10
The TCL R646 (LCD) is good for news, talk, & other TV, while the Vizio Quantum Pro (LCD) is only fair.
The TCL R646 provides a better experience for watching news and TV programs due to superior upscaling of lower resolution content and higher SDR brightness, making it more suitable for various viewing environments. On the other hand, the Vizio Quantum Pro, while still offering very good SDR brightness, falls short in upscaling performance and has lower quality colors out of the box, which may affect the viewing experience of standard content without further adjustments.
Bright Room
8.9
7.7
5.3/10
VIEWING ANGLE
7.2/10
9.1/10
SDR BRIGHTNESS SCORE
8.9/10
8.3/10
HDR BRIGHTNESS SCORE
7.4/10
8.1/10
REFLECTIONS SCORE
8.4/10
The TCL R646 (LCD) is very good for bright room, while the Vizio Quantum Pro (LCD) is good.
The TCL R646 stands out for bright room viewing due to its excellent SDR brightness and very good handling of reflections, enabling clear visibility even in well-lit environments. While the Vizio Quantum Pro also performs well in bright rooms with its very good brightness, it handles reflections slightly less effectively than the TCL, making it a notch less ideal for bright conditions.
Cost
$800
$598
$200
$400
$600
$800
$1,000
$1,200
The TCL R646 (LCD) has a price of $800 and the Vizio Quantum Pro (LCD) costs $598.
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Key similarities
Sports
6.6
6.4
5.3/10
MOTION PROCESSING
3.9/10
120Hz
REFRESH RATE
120Hz
7.6/10
INPUT LAG SCORE
7.6/10
5.9/10
UPSCALING
5.7/10
9.1/10
SDR BRIGHTNESS SCORE
8.9/10
Yes
HLG SUPPORT
Yes
The TCL R646 (LCD) and Vizio Quantum Pro (LCD) are both only fair for sports.
Both the TCL R646 and the Vizio Quantum Pro are considered fair for watching sports; however, the TCL R646 struggles with wider viewing angles, meaning the picture quality drops when viewed from the side, and the Vizio has a lower motion processing capability, which might result in less smooth renditions of fast-paced action. Additionally, while both handle reflections well, which is important in a bright room, and have very good response times for quick action scenes, the TCL has slightly better gray uniformity, meaning it displays a more uniform color across the screen, which is somewhat important for sports viewing.
Gaming
8.2
8.1
8.0/10
RESPONSE TIME SCORE
8.0/10
7.6/10
INPUT LAG SCORE
7.6/10
5.3/10
MOTION PROCESSING
3.9/10
70.0/100
GAMING LOCAL DIMMING
70.0/100
8.7/10
GAME HDR BRIGHTNESS SCORE
7.5/10
The TCL R646 (LCD) and Vizio Quantum Pro (LCD) are both very good for gaming.
The TCL R646 and the Vizio Quantum Pro both have very good response times and input lag scores, which are crucial for gaming as they ensure smooth motion and minimal delay between player input and on-screen action. Moreover, both TVs support a high refresh rate, which allows for more fluid images and a better gaming experience, especially in fast-paced games.
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How the TCL R646 (LCD) and the Vizio Quantum Pro (LCD) compare to other TVs
Spec Comparison
 |  | |
| TCL R646 (LCD) | Vizio Quantum Pro (LCD) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$800 | $598 | ||
Brand | |||
Brand | TCL | Vizio | |
Release Date | |||
Release Date | August 2, 2021 | September 1, 2023 | |
Full name | |||
Full name | 65R646 | VQP65C | |
Screen Size | |||
Screen Size | 65" | 65" | |
Screen Resolution | |||
Screen Resolution | 4K | 4K | |
TV FEATURES | |||
|---|---|---|---|
Operating System | |||
Operating System | Android TV | SmartCast | |
Sound Quality Score | |||
Sound Quality Score | 10/10 | 6.4/10 | |
NextGen Ready | |||
NextGen Ready | No | No | |
HDMI Ports | |||
HDMI Ports | 4 | 4 | |
Coax Ports | |||
Coax Ports | 1 | 1 | |
DISPLAY QUALITY SCORES | |||
|---|---|---|---|
Picture Quality Score | |||
Picture Quality Score | 7.9/10 | 7.3/10 | |
Bright Room Score | |||
Bright Room Score | 9/10 | 7.8/10 | |
Gaming Score | |||
Gaming Score | 8.2/10 | 8.2/10 | |
Movies & TV Score | |||
Movies & TV Score | 7.8/10 | 6.7/10 | |
Sports Score | |||
Sports Score | 6.6/10 | 6.5/10 | |
PHYSICAL | |||
|---|---|---|---|
Dimensions w/o Stand (H x W x D) | |||
Dimensions w/o Stand (H x W x D) | 33.3" x 56.9" x 3.6" | 32.7" x 56.9" x 2.9" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 35.7" x 56.9" | 35.5" x 56.9" | |
Weight without Stand | |||
Weight without Stand | 63.5 lbs | 39.68 lbs | |
VESA Mount | |||
VESA Mount | 300 x 300 | 400 x 300 | |
DISPLAY | |||
|---|---|---|---|
Color Depth | |||
Color Depth | 10 bit | 10 bit | |
Black Frame Insertion | |||
Black Frame Insertion | Yes | Yes | |
Auto Low Latency Mode | |||
Auto Low Latency Mode | Yes | Yes | |
Contrast | |||
Contrast | 8.4/10 | 5.6/10 | |
Local Dimming | |||
Local Dimming | 6.5/10 | 6/10 | |
SOUND | |||
|---|---|---|---|
Speaker Setup | |||
Speaker Setup | 2.0 | 2.0 | |
Speaker Power | |||
Speaker Power | 30 W | 20 W | |
Dolby Atmos | |||
Dolby Atmos | Yes | Yes | |
DTS:X | |||
DTS:X | Yes, Bypass only | Yes | |
Get a great deal on the TCL R646 (LCD) or the Vizio Quantum Pro (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.
About Vizio
Vizio is an American company. While they initially gained recognition for offering budget-friendly TVs, they have successfully expanded their product lineup to include high-end options as well. They manufacture TVs primarily in Mexico, China, and Vietnam. Similar to many Korean TV brands, Vizio developed its own smart TV software called SmartCast. In the past, SmartCast was not the best smart TV software, but it has evolved so that it is now good for using your TV and connecting to streaming services.
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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.
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