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What we think
The PerfectRec TV team Learn more
Updated January 10, 2024·
If you prioritize picture quality and gaming experience, and are willing to pay a premium, the Samsung QN90A is an excellent choice. It offers better bright room performance, making it ideal for sunny environments. However, if you're looking for a more affordable option, the TCL R646 still provides good overall quality, at a midrange price, but may not perform as well in very bright rooms. 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 Samsung QN90A (LCD)
- Best in class for bright room
- Very good for movies & TV
- Good for sports
- Very good for news, talk, & other TV
- Very good for use as monitor
- Very good for upscaling
- Very good motion processing
- Excellent reflections
Advantages of the TCL R646 (LCD)
- The TCL R646 (LCD) has no clear advantages over the Samsung QN90A (LCD).
Key differences
News, Talk, & Other TV
8.9
7.5
9.4/10
SDR BRIGHTNESS SCORE
9.1/10
8.0/10
UPSCALING
5.9/10
The Samsung QN90A (LCD) is very good for news, talk, & other TV, while the TCL R646 (LCD) is good.
The Samsung QN90A delivers a very strong performance for watching news, talk shows, and other TV programs, thanks to its excellent upscaling of lower-resolution content and very good SDR brightness, which ensure clear and well-lit images. In comparison, the TCL R646 is also a solid choice with good upscaling capabilities and SDR brightness, but it may not match the clarity and illumination provided by the QN90A, especially in brightly lit environments.
Bright Room
9.7
8.9
6.5/10
VIEWING ANGLE
5.3/10
9.4/10
SDR BRIGHTNESS SCORE
9.1/10
9.3/10
HDR BRIGHTNESS SCORE
8.3/10
9.0/10
REFLECTIONS SCORE
8.1/10
The Samsung QN90A (LCD) is best in class for bright room, while the TCL R646 (LCD) is very good.
The Samsung QN90A outperforms the TCL R646 in bright rooms primarily because it handles reflections better and has higher brightness capabilities, both in standard and high dynamic range content, which are essential for maintaining picture quality in well-lit environments. Although the TCL R646 also offers excellent brightness and reflection handling, its performance in these areas is not as strong as the Samsung QN90A's, but it still provides good contrast, color volume, and color gamut that contribute to a very good viewing experience in bright rooms.
Cost
$1,598
$1,800
$500
$1,000
$1,500
$2,000
$2,500
$3,000
The Samsung QN90A (LCD) has a price of $1,598 and the TCL R646 (LCD) costs $1,800.
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Key similarities
Picture Quality
8.1
7.9
7.00/10
CONTRAST
8.43/10
8.2/10
COLOR VOLUME SCORE
7.6/10
miniLED FALD
PANEL TYPE
miniLED FALD
VA
PANEL SUB-TYPE
VA
Although they have very similar scores, PerfectRec considers Samsung QN90A (LCD) to have very good picture quality, while the TCL R646 (LCD) has good picture quality.
Movies & TV
8.0
7.8
7.00/10
CONTRAST
8.43/10
7.0/10
BLACK UNIFORMITY
6.8/10
8.0/10
UPSCALING
5.9/10
Yes
HDR10 SUPPORT
Yes
Yes
HDR10+ SUPPORT
Yes
No
DOLBY VISION SUPPORT
Yes
Although they have very similar scores, PerfectRec considers Samsung QN90A (LCD) to be very good for movies & TV, while the TCL R646 (LCD) is good.
The Samsung QN90A delivers very good performance for watching movies and cinematic TV thanks to its high contrast, effective local dimming, and good black uniformity, producing deep blacks and maintaining detail in dark scenes. In contrast, the TCL R646, while also good for movies and cinematic content, offers slightly less effective local dimming and viewing angles, but excels with its higher contrast, making it suitable for environments where true blacks are appreciated but could be less ideal when viewed from an angle.
Sports
7.0
6.6
8.0/10
MOTION PROCESSING
5.3/10
120Hz
REFRESH RATE
120Hz
10.0/10
INPUT LAG SCORE
7.6/10
8.0/10
UPSCALING
5.9/10
9.4/10
SDR BRIGHTNESS SCORE
9.1/10
Yes
HLG SUPPORT
Yes
Although they have very similar scores, PerfectRec considers Samsung QN90A (LCD) to be good for sports, while the TCL R646 (LCD) is only fair.
The Samsung QN90A is considered superior for watching sports due to its exceptional motion processing and response time that ensures smooth action, but its viewing angles are narrower, which can limit the view for off-center spectators. On the other hand, the TCL R646 is fair for sports because while its motion processing is good, it is less effective than the Samsung at handling fast-moving images and doesn't handle reflections as well, although it has slightly wider viewing angles and better gray uniformity, which can be somewhat advantageous in off-center viewing situations.
Gaming
8.3
8.2
8.3/10
RESPONSE TIME SCORE
8.0/10
10.0/10
INPUT LAG SCORE
7.6/10
8.0/10
MOTION PROCESSING
5.3/10
70.0/100
GAMING LOCAL DIMMING
70.0/100
9.3/10
GAME HDR BRIGHTNESS SCORE
8.7/10
The Samsung QN90A (LCD) and TCL R646 (LCD) are both very good for gaming.
The Samsung QN90A has very good response times and the best input lag performance, making it an excellent choice for gaming. The TCL R646 also has very good response times, but its input lag is not rated as high as the Samsung's, although still considered good for gaming.
Cartoons & Animation
8.8
8.4
7.8/10
COLOR GAMUT SCORE
7.6/10
8.2/10
COLOR VOLUME SCORE
7.6/10
9.4/10
SDR BRIGHTNESS SCORE
9.1/10
9.5/10
COLORS OUT OF THE BOX SCORE
7.2/10
6.4/10
GRAY UNIFORMITY
8.0/10
The Samsung QN90A (LCD) and TCL R646 (LCD) are both very good for cartoons & animation.
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How the Samsung QN90A (LCD) and the TCL R646 (LCD) compare to other TVs
Spec Comparison
 |  | |
| Samsung QN90A (LCD) | TCL R646 (LCD) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,598 | $1,800 | ||
Brand | |||
Brand | Samsung | TCL | |
Release Date | |||
Release Date | February 5, 2021 | August 3, 2021 | |
Full name | |||
Full name | QN75QN90A | 75R646 | |
Screen Size | |||
Screen Size | 75" | 75" | |
Screen Resolution | |||
Screen Resolution | 4K | 4K | |
TV FEATURES | |||
|---|---|---|---|
Operating System | |||
Operating System | Tizen | Android TV | |
Sound Quality Score | |||
Sound Quality Score | 8.3/10 | 10/10 | |
NextGen Ready | |||
NextGen Ready | Yes | No | |
HDMI Ports | |||
HDMI Ports | 4 | 4 | |
Coax Ports | |||
Coax Ports | 1 | 1 | |
DISPLAY QUALITY SCORES | |||
|---|---|---|---|
Picture Quality Score | |||
Picture Quality Score | 8.2/10 | 7.9/10 | |
Bright Room Score | |||
Bright Room Score | 9.8/10 | 9/10 | |
Gaming Score | |||
Gaming Score | 8.4/10 | 8.2/10 | |
Movies & TV Score | |||
Movies & TV Score | 8.1/10 | 7.8/10 | |
Sports Score | |||
Sports Score | 7/10 | 6.6/10 | |
PHYSICAL | |||
|---|---|---|---|
Dimensions w/o Stand (H x W x D) | |||
Dimensions w/o Stand (H x W x D) | 37.7" x 65.7" x 1.1" | 37.9" x 65.8" x 3.6" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 40.2" x 65.7" | 40.8" x 65.8" | |
Weight without Stand | |||
Weight without Stand | 77.2 lbs | 82.5 lbs | |
VESA Mount | |||
VESA Mount | 400 x 400 | 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 | 7/10 | 8.4/10 | |
Local Dimming | |||
Local Dimming | 8/10 | 6.5/10 | |
SOUND | |||
|---|---|---|---|
Speaker Setup | |||
Speaker Setup | 4.2.2 | 2.0 | |
Speaker Power | |||
Speaker Power | 60 W | 34 W | |
Dolby Atmos | |||
Dolby Atmos | Bypass only | Yes | |
DTS:X | |||
DTS:X | No | Yes, Bypass only | |
Get a great deal on the Samsung QN90A (LCD) or the TCL R646 (LCD)
About Samsung
Samsung, a South Korean electronics manufacturer, holds the title of being the largest global TV vendor in terms of units sold. They offer a diverse lineup of TV products that cater to various budget ranges. A notable achievement in recent years is the development of Quantum Dots, a technology that enhances color reproduction, resulting in richer and more vibrant hues. Samsung TVs are well-regarded for their high manufacturing quality and user-friendly software, making them an excellent choice for consumers seeking an intuitive viewing experience.
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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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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