The Samsung QN90B QLED is a premium 4k TV that replaces the Samsung QN90A and is available in 43 to 85-inch sizes. This TV is part of Samsung's 2022 lineup, sitting between the Samsung QN85B and the Samsung QN95B. The QN95B is a similar TV with a One Connect box but a different processor. The QN90B features Samsung's Neo Quantum Processor 4k, and it uses Mini LED backlighting with over 900 dimming zones on larger sizes.
This TV comes with Samsung's proprietary Tizen OS smart interface, which offers a large selection of apps and games. The smart system has a few useful features, like the ability to control other smart devices and support for video calls with a compatible webcam. Besides that, it has gaming features you'd expect to find in a high-end TV, like variable refresh rate (VRR) support and HDMI 2.1 bandwidth, and the 43 and 50-inch sizes even have a 144Hz refresh rate.
Our Verdict
The Samsung QN90B is an impressive TV for most uses. It's great for watching TV shows or sports in a bright room thanks to its high peak brightness and superb reflection handling. It also upscales lower-resolution content well, which is important if your shows and sports aren't in 4k. It delivers an impactful HDR experience in a dark room thanks to its great contrast, impressive local dimming feature, and exceptional peak brightness in HDR, but it doesn't track the target PQ EOTF well. It also delivers an excellent gaming experience with low input lag, a fast pixel response time, and a slew of great gaming features. It's a fantastic choice for use as a PC monitor, as it supports most common resolutions, and chroma 4:4:4 is displayed properly, essential for clear text.
- Bright enough to overcome glare in a bright room.
- Image remains consistent at an angle.
- Easy-to-use smart interface with a great selection of apps.
- Some noticeable stutter in slow-panning shots.
The Samsung QN90B is great for watching TV shows in a bright room. It has fantastic peak brightness and superb reflection handling, so glare isn't an issue in bright rooms. It also has a wide viewing angle, so the image remains consistent from the side, which is great if you have a wide seating arrangement or like to move around with the TV on. The Tizen OS smart interface has a great selection of additional apps, so you're sure to find your favorite ones. Finally, it upscales lower-resolution content well, which is great if you have a collection of older TV shows on DVD.
- Bright enough to overcome glare in a bright room.
- Image remains consistent at an angle.
- Easy-to-use smart interface with a great selection of apps.
- Upscales lower resolution content well.
- Some dirty screen effect.
The Samsung QN90B is an impressive TV for watching sports in a bright room. It has fantastic peak brightness and superb reflection handling, meaning it can easily overcome glare in a bright room. It also has a good viewing angle, so the image remains consistent from the side if you have a wide seating arrangement. It has a quick pixel response time, so fast-moving objects, like players, look clear, and it's easy to make out the action. It even upscales lower-resolution content well, so sports from cable boxes look sharp. Unfortunately, although it has decent gray uniformity overall, there's a bit of distracting dirty screen effect in the center of the screen.
- Bright enough to overcome glare in a bright room.
- Image remains consistent at an angle.
- Fast response time.
- Easy-to-use smart interface with a great selection of apps.
- Some dirty screen effect.
The Samsung QN90B delivers an excellent gaming experience. It has fantastic low input lag, ensuring your actions feel responsive with little delay. It also has an excellent response time, resulting in very little blur behind fast-moving objects. All four of its HDMI ports support HDMI 2.1 bandwidth, and it's fully compatible with everything the Xbox Series X and PS5 have to offer, including VRR support. Unfortunately, there's a bit of blooming in Game Mode when you have local dimming enabled.
- Great contrast and an impressive local dimming feature.
- Fast response time.
- Exceptionally low input lag.
- Supports all three VRR formats.
- Some blooming in Game Mode with local dimming.
The Samsung QN90B is a great TV for watching movies in a dark room. It has a great contrast ratio, and thanks to its impressive Mini LED local dimming feature, blacks look dark and uniform in a dark room. It gets exceptionally bright in HDR, so small highlights stand out incredibly well. It also has an excellent HDR color gamut and fantastic color volume, so HDR content looks vivid and lifelike. However, there are some downsides, as it doesn't track the PQ EOTF well, meaning the image appears brighter than the creator intended. It also has some issues with macro-blocking in low-quality content, like in compressed movies from streaming services.
- Great contrast and an impressive local dimming feature.
- Fantastic peak brightness in HDR.
- Completely judder-free from all sources.
- Easy-to-use smart interface with a great selection of apps.
- Doesn't support Dolby Vision or DTS.
- Some noticeable stutter in slow-panning shots.
- Doesn't track the PQ EOTF properly; most scenes are brighter than expected.
The Samsung QN90B is an excellent TV for gaming in HDR. It delivers an excellent gaming experience with low input lag, a fast response time, and a slew of great gaming features, including HDMI 2.1 bandwidth and VRR support. HDR content looks incredible thanks to its exceptional peak brightness in HDR and great contrast, but its local dimming feature results in some blooming in Game Mode. It doesn't track the PQ EOTF properly, so most scenes are brighter than expected. On the plus side, bright highlights in games stand out well, and even large, bright scenes look good.
- Great contrast and an impressive local dimming feature.
- Fantastic peak brightness in HDR.
- Fast response time.
- Exceptionally low input lag.
- Supports all three VRR formats.
- Some blooming in Game Mode with local dimming.
- Doesn't track the PQ EOTF properly; most scenes are brighter than expected.
The Samsung QN90B is a fantastic choice for use as a PC monitor. It displays most chroma 4:4:4 signals properly, which is essential for good text clarity. It even has HDMI 2.1 bandwidth to take advantage of high-end graphics cards. It has a good viewing angle, ensuring the sides of the screen remain consistent when you sit close to the TV. It also has very low input lag, so it feels responsive when you're moving your mouse, and it has a quick response time, so there's very little blur behind fast-moving objects. Finally, it has fantastic peak brightness and superb reflection handling, so you don't have to worry about glare in a bright room.
- Chroma 4:4:4 is displayed properly.
- Image remains consistent at an angle.
- Fast response time.
- Exceptionally low input lag.
- Some dirty screen effect.
Changelog
- Updated Sep 26, 2025: We uploaded the latest brightness measurements and uniformity photos for the Accelerated Longevity Test.
- Updated Jul 08, 2025: We uploaded the latest brightness measurements and uniformity photos for the Accelerated Longevity Test.
- Updated Apr 17, 2025: We uploaded the latest brightness measurements and uniformity photos for the Accelerated Longevity Test.
- Updated Feb 11, 2025: We uploaded the latest brightness measurements and uniformity photos for the Accelerated Longevity Test.
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Differences Between Sizes And Variants
We tested the 65-inch QN90B, and the results are also valid for the 55-inch (Samsung 55QN90B), 75-inch (Samsung 75QN90B), and 85-inch (Samsung 85QN90B). It's also available in 43-inch and 50-inch models, but they're a bit different as they support a higher refresh rate and have different screen coating; we tested the 43-inch model as a monitor. Note that with Samsung TVs, the six letters after the short model code (AAFXZA in this case) vary between specific retailers and regions and even between different retailers. The warehouse variant sold at Costco and other retailers is known as the Samsung QN90BD. There are no differences between the QN90BD and the QN90B, but the warehouse model comes with a five-year warranty.
| Size | US Model | Short Model Code | Warehouse Variant | Refresh Rate | Ultra Viewing Angle Layer | Anti-Reflective Coating | Dimming Zones |
|---|---|---|---|---|---|---|---|
| 43" | QN43QN90BAFXZA | QN43QN90B | 43QN90BD | 144Hz | No | No | Unknown |
| 50" | QN50QN90BAFXZA | QN50QN90B | 50QN90BD | 144Hz | No | No | Unknown |
| 55" | QN55QN90BAFXZA | QN55QN90B | 55QN90BD | 120Hz | Yes | Yes | Unknown |
| 65" | QN65QN90BAFXZA | QN65QN90B | 65QN90BD | 120Hz | Yes | Yes | 720 |
| 75" | QN75QN90BAFXZA | QN75QN90B | 75QN90BD | 120Hz | Yes | Yes | ~900 |
| 85" | QN85QN90BAFXZA | QN85QN90B | 85QN90BD | 120Hz | Yes | Yes | 1320 |
Our unit was manufactured in February 2022, and you can see the label here.
Popular TV Comparisons
The Samsung QN90B is an excellent TV overall, and it's one of the best 4k TVs with an LED backlight on the market. It's incredibly bright and versatile and fits well in almost any viewing environment. It also has an impressive selection of smart features and gaming features, so it's a great choice for pretty much anyone. While it's a fantastic high-end LED TV, it's still somewhat expensive, so if you're on a tighter budget and don't need the best performance, a mid-range TV like the Hisense U8/U8H is still a great alternative.
For more options, check out our recommendations for the best TVs, the best QLED TVs, and the best 4k gaming TVs.
The Samsung QN90B and the Samsung QN95B deliver nearly identical performance; the biggest difference between them is their design. The QN95B's inputs are all housed in an external One Connect box instead of on the back of the TV. It helps deliver a cleaner setup overall, with a single cable going from the One Connect box to the TV, so it's easier to hide if you're going for a clean setup with no visible wires. The QN90B doesn't have this external input box, so your input cables have to be routed to the back of the TV instead.
The Samsung QN90C is the replacement model for the Samsung QN90B, and they each have their strengths and weaknesses. The QN90C has better tone mapping and tracks the PQ EOTF better, so HDR content looks much better, despite the QN90B's better measurements on some aspects of picture quality. The QN90C also uses a different panel type that natively has a wider viewing angle without needing additional filters, so there's no Ultra Wide Viewing Angle layer. It results in a slightly smaller viewing angle on the QN90C, but there's no distracting rainbow smearing from overhead lights.
The Samsung QN90B is very similar to its predecessor, the Samsung QN90A. The QN90B has a wider viewing angle but worse black uniformity and more noticeable blooming in dark scenes. Small highlights in HDR content in dark scenes are significantly brighter on the QN90B, so they pop more.
The Samsung QN90B is better than the Samsung QN85C. The QN90B gets much brighter than the QN85C, but in practice, this isn't always noticeable as most content just isn't mastered to take advantage of such high brightness levels. The QN85C is the more accurate TV of the two; it respects the content creator's intent well. However, the QN90B is the more colorful TV, with a wider color gamut and better color volume, and it has much better reflection handling, although it does have some rainbow smearing.
We buy and test dozens of TVs yearly, taking an objective, data-driven approach to deliver results you can trust. Our testing process is complex, with hundreds of individual tests that take over a week to complete. Most of our tests use specially designed test patterns that mimic real content, but we also use the same sources you have at home to ensure our results match the real-world experience. We use two main tools for our testing: a Colorimetry Research CR-100 colorimeter and a CR-250 spectroradiometer.
Test Results
Older Test Bench: This product has been tested using an older TV test methodology, before a major update. Some of the test results below aren't directly comparable with other TVs. Learn more
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