Samsung OLED S95D vs Samsung OLED S90F (QD-OLED)

Samsung S95D offers excellent HDR performance, delivering consistent effects across all scenes exceeding 1500 nits, except for the fifth, where brightness drops to 800 nits. Despite this, the TV maintains a high level of picture quality. A significant advantage of QD-OLED technology is the ability to maintain high brightness even in the smallest elements on a black background, which is rare in LCD and mini LED TVs. As a result, every scene impresses with strong lighting effects, regardless of the size of the illuminated surface. Only in the brightest scenes with a large light area does brightness drop slightly, which is typical even for standard LG OLEDs. Additionally, the quantum dot coating has allowed for an unprecedented high coverage of the BT.2020 colour palette at 88%.

The biggest difference between the 65-inch S90F and the other versions is brightness. The QD-OLED panel can reach up to 1700 nits in laboratory tests, which is over 500 nits more than the version with a WOLED matrix. This translates to a significantly stronger and more immersive HDR effect. In most scenes, the bright parts of the image look stunning, and we must admit that we were positively surprised, as we expected results closer to the WOLED version, but what we got is an effect that impresses even in films. As with every OLED, there are moments when the panel must reduce brightness a bit. This mainly concerns full-screen, very demanding scenes – for instance, in the last test scene from the movie “The Meg,” brightness drops to around 800 nits. However, it's hard to consider this a flaw because it's still an excellent result, unprecedented in OLED TVs in this price range. Everything suggests that the 65-inch S90F could be one of the best choices this year for those looking for a strong OLED at a reasonable price. Another advantage of the QD-OLED matrix in HDR content is its colour gamut coverage. Thanks to quantum dots, the television achieves nearly 100% of the DCI-P3 gamut and almost 90% of the BT.2020 gamut. These are values that place it alongside much more expensive models and make it exceptional in its class.

On the Samsung S95D, the best colour reproduction mode is the Filmmaker mode. We conduct all our tests in this mode. Although initially, the image in this mode may seem a bit warmer to the viewer, it provides significantly more detail compared to the standard or dynamic modes, which are always oversaturated and artificial. Therefore, Filmmaker is the most closely aligned with the vision of filmmakers and ideal for watching high-quality content. It is worth noting, however, that the factory settings are not perfect, despite dealing with premium segment equipment. The image may contain certain issues that affect the overall quality of the displayed scenes. An example is the drops in red colour in the white balance, both in HD and HDR content. Colour Checker tests showed that the colours lean towards cooler tones. The image is dominated by blue hues, and the overall colour spectrum is distorted. As can be seen in the picture below, the boy from the film appears in cooler tones, making him look less natural. When it comes to brightness characteristics for HD content, it is quite accurate, although there are minor errors. The biggest issue arises when displaying 4K HDR content. The EOTF curve, which seems appropriate at first glance in test patterns, in actual film scenes shows that the TV sometimes "messes around" with the image. This results in some scenes appearing slightly brighter and others darker.

Samsung S95D offers quite decent factory colour reproduction; however, it has some shortcomings that may require calibration to fully utilise the potential of this television. The process is recommended to achieve the most natural and immersive image possible.

Samsung S90F, like most modern televisions, offers several picture modes, but in keeping with our tradition, we checked it in the most important one, which is Filmmaker. This setting makes the picture look much more natural than in the default, often oversaturated modes. It is neither overly vivid nor artificially dimmed – just closer to what you should actually see. However, this doesn’t mean it’s perfect. The S90F had noticeable shortcomings in white balance, particularly in the blue range, which created a slightly yellowish filter effect on most scenes. One might argue that it looks more “cinematic” because it’s warmer, but let’s not kid ourselves – George Lucas didn’t shoot Star Wars in sepia 😉 (you’ll find a comparison with a scene as always below). In HDR materials, there was also an issue with brightness management. The EOTF curve clearly showed that the television brightens the image more than it should, which led to some effects looking too intense and deviating from the reference. Fortunately, many of these flaws can be eliminated through professional calibration – we will discuss the effects of this procedure later in the test.

How much can the picture quality of a TV change after calibration? After calibration on the Samsung S95D, the white balance has significantly improved, eliminating all major errors, allowing for a more natural and harmonious colour representation. In the case of 4K content, there are only minor imperfections which do not affect the overall picture quality. Thanks to the calibration, viewers can now enjoy more balanced tones, which better reflect the intentions of filmmakers. The contrast has also improved, and the gamma shows even better results. This means that the differences between bright and dark parts of the image have become more pronounced, resulting in better depth and detail of scenes. As a result, shadows have gained more detail, and bright areas are no longer so overwhelming, providing a more realistic visual experience. However, it should be noted that the EOTF curve is slightly below the expected level, which may affect how the TV handles dynamic scenes. Nevertheless, after calibration, the overall picture quality has significantly improved, and viewers can now enjoy a visual experience that is more in line with the creators' intentions. The TV handles subtle tonal transitions and contrast better, making it more suitable for watching movies and high-definition programs. Ultimately, the picture after calibration is closely aligned with reference quality, making the visual experience even more satisfying.

Calibration quickly revealed that the S90F has a significant reserve of capabilities. The image in SDR immediately gained a natural quality – classic films no longer looked like someone was applying a yellowish filter, and the colours regained their proper character. It's a return to the atmosphere of the original, without the impression that someone tried to "age" it forcefully. In HDR content, the difference was even more pronounced. The EOTF curve was managed to nearly reference level, and any deviations are so subtle that most viewers wouldn't even notice them. In practice, the S90F shows an image very close to ideal post-calibration. Compared to the WOLED version, it even performs better – mainly due to a wider coverage of the colour palette, which makes the colours look fuller and more vibrant.

How does the television handle tonal transitions in lower quality materials? Generally speaking, the S95D performs exceptionally well. On the screen with the light bulb, there are virtually no transitions between shades of grey, making it one of the best televisions we have tested in this regard.

When it comes to digital processing, the entirety of the image — from branches to the models' characters — has been well rendered, with no jagged edges or overly visible contours. However, we must point out one issue: the image has been slightly cropped. Nevertheless, the television performs brilliantly, and details in lower quality materials are still noticeable and well-defined.

S90F performs really well here, although there are some points that are common across most Samsung TVs. The noise reduction feature can effectively smooth out unwanted colour transitions in lower-quality materials like television or YouTube, making them look simply better. However, it should be noted that it works quite aggressively and can also soften elements that we wouldn’t want to alter, such as facial details. Therefore, if we want to use it, it’s best to use it in the "medium" setting and be aware of the compromise it brings. The upscaling itself is of a high standard – low-quality materials are pulled towards an image resembling 4K. The only caveat is that the S90F can still have issues with so-called overscan, meaning slight trimming of the edges in very low-quality materials such as 576p and lower.

The Samsung S95D TV, equipped with a 120 Hz refresh rate panel (and even up to 144 Hz in the appropriate PC configuration), provides excellent motion fluidity. Samsung offers a variety of image sharpness settings on a ten-point scale, allowing users to adjust the display according to their own preferences – whether the picture should be more cinematic/frame-like or more theatrical/smooth. In tests with UFO, the OLED panel shows its advantages, eliminating any blurring. The lightning-fast pixel response ensures that dynamic movements are rendered with unparalleled precision.

S90F is an OLED with a refresh rate of 144 Hz, but in practice, what matters most is how it performs at 120 Hz, as this frequency is the most important when watching sports. The QD-OLED panel is no different in this regard from WOLED panels – the pixel response is nearly instantaneous, so motion is rendered with surgical precision. The effect is easy to predict. The image is practically free of motion blur, making gaming on consoles, matches, or other sports broadcasts a tremendous pleasure on the S90F.

Fans of movies and series have not been forgotten either. Like every Samsung television with a refresh rate of 120 Hz and above, the S90F is equipped with a proprietary motion smoother called “Picture Clarity.” Here, we find two sliders – blur reduction and judder reduction – which allow you to improve the smoothness of content recorded at 24 frames and tailor the effect to your own preferences.

The Samsung S95D television is perfectly adapted to the needs of gamers, offering four HDMI 2.1 ports that support key features such as Auto Low Latency Mode (ALLM), Variable Refresh Rate (VRR), and HDR Gaming Interest Group (HGIG). The HDMI 2.1 ports do not offer the full 48Gb bandwidth, but they are still sufficient for achieving the appropriate resolution and smoothness. With these technologies, gamers can enjoy smoother and more responsive gameplay, which significantly impacts comfort and performance during intense gaming sessions. One of the biggest advantages is the Xbox app, which allows for cloud gaming without the need for a console. With it, gamers can access a wide range of titles directly on the television, enjoying high image quality and smooth gameplay. Additionally, the S95D offers a Game Bar feature that enables easy management of game settings, including quick adjustments to parameters such as changing the aspect ratio, which can be extremely useful in various games and game modes. It is also worth mentioning the support for G-Sync and FreeSync, which is a huge plus for users of Nvidia and AMD graphics cards. Despite the lack of support for Dolby Vision, the television still offers excellent features that make it an ideal choice for console gaming enthusiasts. Overall, the S95D combines modern technologies with superb image quality, creating a complete package for every gamer.

The S90F is a television that genuinely brings a lot of joy when gaming. To start with, we get four proper HDMI 2.1 ports, which means you can connect all consoles and PCs without having to figure out which device takes priority. This is a convenient and practical solution, which is not at all a given with other manufacturers. Additionally, there are key features such as: automatic game mode (ALLM), which automatically switches the screen to low latency settings, and VRR frame synchronization that operates over a wide range from 48 to 144 Hz. This ensures the picture remains smooth, whether we're playing fast-paced online shooters or more relaxed narrative titles. The Game Bar also deserves attention – a panel that allows quick access to several handy extras. For example, you can turn on an extra crosshair in the middle of the screen, enlarge the minimap, or, in the case of PC, change the aspect ratio. Finally, there's also Samsung's unique Game Motion Plus mode. Its task is to smooth out older or poorly optimized titles, and it actually works quite well. With this mode, even less polished games can look better and provide more enjoyment than on other televisions that theoretically offer the same technical parameters.