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What we think
The PerfectRec TV team Learn more
Updated January 10, 2024·
The Samsung Q70A is a midrange-priced TV that offers good overall picture quality, particularly for gaming, but it may not perform as well in dark rooms. On the other hand, the Samsung QN90B is priced at the premium end and provides stronger overall performance, including better picture quality in both dark and bright rooms, as well as superior sound quality with great speakers built-in. If budget is a concern, the Q70A is less expensive and still provides good quality for gaming and general TV watching. However, if you're looking for top picture quality and sound, and you're willing to invest more, the QN90B is a noteworthy upgrade. 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 Q70A (LCD)
- The Samsung Q70A (LCD) has no clear advantages over the Samsung QN90B (LCD).
Advantages of the Samsung QN90B (LCD)
- Best in class for bright room
- Good for dark room
- Very good for gaming
- Very good for movies & TV
- Good for sports
- Excellent for news, talk, & other TV
- Very good for use as monitor
- Very good for upscaling
- Good viewing angle
- Excellent reflections
Key differences
Picture Quality
7.2
8.2
8.21/10
CONTRAST
7.00/10
7.0/10
COLOR VOLUME SCORE
8.2/10
LED
PANEL TYPE
miniLED FALD
VA
PANEL SUB-TYPE
VA
The Samsung QN90B (LCD) has very good picture quality, while the Samsung Q70A (LCD) has good picture quality.
Movies & TV
6.4
8.1
8.21/10
CONTRAST
7.00/10
6.8/10
BLACK UNIFORMITY
7.0/10
7.5/10
UPSCALING
8.0/10
Yes
HDR10 SUPPORT
Yes
Yes
HDR10+ SUPPORT
Yes
No
DOLBY VISION SUPPORT
No
The Samsung QN90B (LCD) is very good for movies & TV, while the Samsung Q70A (LCD) is only fair.
The Samsung QN90B delivers a superior movie and cinematic TV watching experience compared to the Samsung Q70A, significantly due in part to its excellent performance in contrast, local dimming, and black uniformity, all of which contribute to a more vivid and immersive viewing, especially in dark scenes. Additionally, the QN90B offers better viewing angles and reflection handling, making it more versatile in different room settings, while also boasting superior colors straight out of the box and a broader color volume enhancing overall picture quality.
Gaming
7.7
8.3
8.0/10
RESPONSE TIME SCORE
8.3/10
10.0/10
INPUT LAG SCORE
10.0/10
8.0/10
MOTION PROCESSING
8.0/10
0.0/100
GAMING LOCAL DIMMING
70.0/100
7.3/10
GAME HDR BRIGHTNESS SCORE
9.3/10
The Samsung QN90B (LCD) is very good for gaming, while the Samsung Q70A (LCD) is good.
The Samsung QN90B is regarded as very good for gaming because it combines an excellent response time and input lag performance with the added benefits of a miniLED FALD VA screen, which can improve contrast and brightness, enhancing the gaming experience. In comparison, the Samsung Q70A is considered good for gaming as it offers very good response time and the best input lag performance, on a standard LED VA screen which may not deliver the same level of contrast and brightness as the QN90B, impacting its gaming suitability in very well-lit environments or for HDR content.
Cartoons & Animation
8.2
8.8
7.1/10
COLOR GAMUT SCORE
7.8/10
7.0/10
COLOR VOLUME SCORE
8.2/10
8.6/10
SDR BRIGHTNESS SCORE
9.4/10
8.5/10
COLORS OUT OF THE BOX SCORE
9.5/10
6.0/10
GRAY UNIFORMITY
6.6/10
The Samsung QN90B (LCD) and Samsung Q70A (LCD) are both very good for cartoons & animation, though the Samsung QN90B (LCD) is somewhat better.
The Samsung Q70A excels in displaying cartoons and animation due to its very good color accuracy straight out of the box and a good color gamut that enhances vibrant hues. On the other hand, the Samsung QN90B is particularly outstanding with even better color accuracy from the start and very good color volume that ensures colors are rich and vivid across different brightness levels.
News, Talk, & Other TV
7.6
9.0
8.6/10
SDR BRIGHTNESS SCORE
9.4/10
7.5/10
UPSCALING
8.0/10
The Samsung QN90B (LCD) is excellent for news, talk, & other TV, while the Samsung Q70A (LCD) is good.
The Samsung Q70A is praised for good upscaling and very good SDR brightness, which are important for watching news and talk shows, while the Samsung QN90B takes it up a notch with excellent upscaling and SDR brightness, enhancing clarity and visibility in such content. The QN90B's superior local dimming and better out-of-the-box colors contribute to its excellent performance for TV programs, providing a richer and more consistent viewing experience compared to the also capable Q70A.
Bright Room
7.4
9.7
5.3/10
VIEWING ANGLE
7.4/10
8.6/10
SDR BRIGHTNESS SCORE
9.4/10
7.2/10
HDR BRIGHTNESS SCORE
9.3/10
5.9/10
REFLECTIONS SCORE
9.0/10
The Samsung QN90B (LCD) is best in class for bright room, while the Samsung Q70A (LCD) is good.
The Samsung QN90B outshines the Samsung Q70A in SDR and HDR brightness, making it superior for watching TV in a bright room. Additionally, the QN90B handles reflections better which, alongside its higher brightness, contributes to a clearer picture in well-lit environments.
Cost
$948
$1,600
$0
$500
$1,000
$1,500
$2,000
$2,500
The Samsung Q70A (LCD) has a price of $948 and the Samsung QN90B (LCD) costs $1,600.
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Key similarities
Sports
6.7
7.1
8.0/10
MOTION PROCESSING
8.0/10
120Hz
REFRESH RATE
120Hz
10.0/10
INPUT LAG SCORE
10.0/10
7.5/10
UPSCALING
8.0/10
8.6/10
SDR BRIGHTNESS SCORE
9.4/10
Yes
HLG SUPPORT
Yes
Although they have very similar scores, PerfectRec considers Samsung QN90B (LCD) to be good for sports, while the Samsung Q70A (LCD) is only fair.
The Samsung QN90B outperforms the Q70A in sports viewing mainly due to its superior handling of reflections and a wider viewing angle, which are crucial for clear visibility in a bright room and when watching with a group. Both TVs have the same response time and motion processing which is important for fast-moving sports, but the QN90B has slightly better gray uniformity, improving the overall visual consistency on the screen.
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How the Samsung Q70A (LCD) and the Samsung QN90B (LCD) compare to other TVs
Spec Comparison
 |  | |
| Samsung Q70A (LCD) | Samsung QN90B (LCD) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$948 | $1,600 | ||
Brand | |||
Brand | Samsung | Samsung | |
Release Date | |||
Release Date | March 2, 2021 | March 4, 2022 | |
Full name | |||
Full name | QN65Q70A | QN65QN90B | |
Screen Size | |||
Screen Size | 65" | 65" | |
Screen Resolution | |||
Screen Resolution | 4K | 4K | |
TV FEATURES | |||
|---|---|---|---|
Operating System | |||
Operating System | Tizen | Tizen | |
Sound Quality Score | |||
Sound Quality Score | 5.7/10 | 8.3/10 | |
NextGen Ready | |||
NextGen Ready | No | Yes | |
HDMI Ports | |||
HDMI Ports | 4 | 4 | |
Coax Ports | |||
Coax Ports | 1 | 1 | |
DISPLAY QUALITY SCORES | |||
|---|---|---|---|
Picture Quality Score | |||
Picture Quality Score | 7.2/10 | 8.2/10 | |
Bright Room Score | |||
Bright Room Score | 7.4/10 | 9.8/10 | |
Gaming Score | |||
Gaming Score | 7.8/10 | 8.4/10 | |
Movies & TV Score | |||
Movies & TV Score | 6.4/10 | 8.1/10 | |
Sports Score | |||
Sports Score | 6.7/10 | 7.2/10 | |
PHYSICAL | |||
|---|---|---|---|
Dimensions w/o Stand (H x W x D) | |||
Dimensions w/o Stand (H x W x D) | 32.8" x 57.2" x 1" | 32.6" x 56.9" x 1" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 35.3" x 57.2" | 35.1" x 56.9" | |
Weight without Stand | |||
Weight without Stand | 46.1 lbs | 53.8 lbs | |
VESA Mount | |||
VESA Mount | 400 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 | 8.2/10 | 7/10 | |
Local Dimming | |||
Local Dimming | 2.5/10 | 8/10 | |
SOUND | |||
|---|---|---|---|
Speaker Setup | |||
Speaker Setup | 2.0 | 4.2.2 | |
Speaker Power | |||
Speaker Power | 20 W | 60 W | |
Dolby Atmos | |||
Dolby Atmos | Bypass only | Yes | |
DTS:X | |||
DTS:X | No | No | |
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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."
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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.
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