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What we think
The PerfectRec TV team Learn more
Updated January 10, 2024·
The Samsung QN90B offers better overall picture quality, particularly in bright rooms, with superior reflection handling and brightness. It excels with gaming content due to its quick response time and low input lag. Consider the TCL R648 if you prioritize a robust sound setup as it comes with Dolby Atmos support, but it offers lower performance in terms of picture quality, especially in bright environments and for sports viewing. The QN90B is usually less expensive than the TCL R648 despite its higher performance, making it a strong value for those focused on picture quality and gaming. 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 QN90B (LCD)
- Best in class for bright room
- Very good for movies & TV
- Good for sports
- Excellent for news, talk, & other TV
- Very good for use as monitor
- Very good for upscaling
- Very good motion processing
- Good viewing angle
- Excellent reflections
Advantages of the TCL R648 (LCD)
- The TCL R648 (LCD) has no clear advantages over the Samsung QN90B (LCD).
Key differences
Sports
7.1
6.5
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
9.0/10
Yes
HLG SUPPORT
Yes
The Samsung QN90B (LCD) is good for sports, while the TCL R648 (LCD) is only fair.
The Samsung QN90B delivers better sports viewing mainly due to its superior motion processing and quicker response time, leading to smoother action without blur. The Samsung is also better equipped to handle reflections, crucial for maintaining a clear picture during daytime sports events, while the TCL R648 performs less effectively in these areas.
News, Talk, & Other TV
9.0
7.5
9.4/10
SDR BRIGHTNESS SCORE
9.0/10
8.0/10
UPSCALING
5.9/10
The Samsung QN90B (LCD) is excellent for news, talk, & other TV, while the TCL R648 (LCD) is good.
The Samsung QN90B offers superior upscaling and presents colors more accurately out of the box compared to the TCL R648, making it excellent for watching news, talk shows, and other TV programs. Additionally, the Samsung QN90B has a better local dimming feature, which, along with its high SDR brightness, provides a clearer and more vibrant display in various lighting conditions, further enhancing the viewing experience for such content.
Bright Room
9.7
8.1
7.4/10
VIEWING ANGLE
5.2/10
9.4/10
SDR BRIGHTNESS SCORE
9.0/10
9.3/10
HDR BRIGHTNESS SCORE
7.9/10
9.0/10
REFLECTIONS SCORE
8.0/10
The Samsung QN90B (LCD) is best in class for bright room, while the TCL R648 (LCD) is very good.
The Samsung QN90B offers excellent SDR and HDR brightness as well as handling reflections effectively, making it the best for watching TV in bright rooms. In comparison, the TCL R648, while very good at handling reflections and also offering excellent SDR brightness, falls short with a good rating in HDR brightness, which makes it slightly less optimal in bright rooms compared to the QN90B.
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Key similarities
Picture Quality
8.2
7.7
7.00/10
CONTRAST
7.00/10
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 QN90B (LCD) to have very good picture quality, while the TCL R648 (LCD) has good picture quality.
Movies & TV
8.1
7.6
7.00/10
CONTRAST
7.00/10
7.0/10
BLACK UNIFORMITY
6.5/10
8.0/10
UPSCALING
5.9/10
Yes
HDR10 SUPPORT
Yes
Yes
HDR10+ SUPPORT
No
No
DOLBY VISION SUPPORT
Yes
Although they have very similar scores, PerfectRec considers Samsung QN90B (LCD) to be very good for movies & TV, while the TCL R648 (LCD) is good.
The Samsung QN90B offers better black uniformity and local dimming which enhances contrast, making it very good for watching movies and cinematic TV where dark scenes are more impactful. However, the TCL R648, despite its good performance in these areas, has weaker viewing angles and lower local dimming effectiveness, which might affect the experience in wide seating arrangements or if the deepness of blacks is a priority.
Gaming
8.3
8.2
8.3/10
RESPONSE TIME SCORE
8.2/10
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
8.3/10
The Samsung QN90B (LCD) and TCL R648 (LCD) are both very good for gaming.
Cartoons & Animation
8.8
8.6
7.8/10
COLOR GAMUT SCORE
7.8/10
8.2/10
COLOR VOLUME SCORE
7.6/10
9.4/10
SDR BRIGHTNESS SCORE
9.0/10
9.5/10
COLORS OUT OF THE BOX SCORE
9.0/10
6.6/10
GRAY UNIFORMITY
7.0/10
The Samsung QN90B (LCD) and TCL R648 (LCD) are both very good for cartoons & animation.
The Samsung QN90B excels in displaying animations with vibrant and accurate colors straight out of the box and offers a wide color gamut, which ensures a rich and varied palette for cartoons, while the TCL R648, with its excellent color reproduction capabilities and a good color gamut, also provides an impressive viewing experience for animated content. Both TVs perform well in terms of SDR brightness, ensuring that cartoons will be bright and visible even in well-lit rooms, and they have respectable contrast and gray uniformity, contributing to their ability to deliver consistent and punchy images.
Cost
$2,398
$2,500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
$4,000
The Samsung QN90B (LCD) has a price of $2,398 and the TCL R648 (LCD) costs $2,500.
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How the Samsung QN90B (LCD) and the TCL R648 (LCD) compare to other TVs
Spec Comparison
 |  | |
| Samsung QN90B (LCD) | TCL R648 (LCD) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,398 | $2,500 | ||
Brand | |||
Brand | Samsung | TCL | |
Release Date | |||
Release Date | March 5, 2022 | May 2, 2021 | |
Full name | |||
Full name | QN75QN90B | 75R648 | |
Screen Size | |||
Screen Size | 75" | 75" | |
Screen Resolution | |||
Screen Resolution | 4K | 8K | |
TV FEATURES | |||
|---|---|---|---|
Operating System | |||
Operating System | Tizen | Roku TV | |
Sound Quality Score | |||
Sound Quality Score | 8.3/10 | 8/10 | |
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 | 7.8/10 | |
Bright Room Score | |||
Bright Room Score | 9.8/10 | 8.2/10 | |
Gaming Score | |||
Gaming Score | 8.4/10 | 8.3/10 | |
Movies & TV Score | |||
Movies & TV Score | 8.1/10 | 7.7/10 | |
Sports Score | |||
Sports Score | 7.2/10 | 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" | 37.6" x 65.9" x 3" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 40.2" x 65.7" | 40.1" x 65.9" | |
Weight without Stand | |||
Weight without Stand | 77.2 lbs | 89.3 lbs | |
VESA Mount | |||
VESA Mount | 400 x 400 | 400 x 400 | |
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 | 7/10 | |
Local Dimming | |||
Local Dimming | 8/10 | 6.5/10 | |
SOUND | |||
|---|---|---|---|
Speaker Setup | |||
Speaker Setup | 4.2.2 | 2.1 | |
Speaker Power | |||
Speaker Power | 60 W | 50 W | |
Dolby Atmos | |||
Dolby Atmos | Yes | Yes | |
DTS:X | |||
DTS:X | No | Yes, Bypass only | |
Shopping
Samsung QN90B (LCD)
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Dig into reviews and images
USA Today
Michael Desjardin | October 2022
"The QN90B delivers one of the brightest pictures we’ve ever seen, showcasing HDR content better than just about every LCD/LED TV on the market. If all you’re planning on doing is watching cable TV, broadcast channels, and a fair share of streaming shows or movies, the QN90B is sure to impress. All four of the QN90B’s HDMI 2.1 ports support 4K gaming at 120fps a centerpiece feature of the Xbox Series X and PlayStation 5."
Get a great deal on the Samsung QN90B (LCD) or the TCL R648 (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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