LG OLED83C5PUA 83" VS Samsung QN83S90FAE 83"

Both the LG OLED83C5PUA and the Samsung QN83S90FAE share the same fundamental display DNA: OLED/AMOLED panels at 4K (3840 x 2160) resolution, a 53 ppi pixel density, 10-bit color depth rendering 1.07 billion colors, and identical 178° viewing angles in both directions. At this size and panel type, both will deliver the hallmark OLED traits — true blacks, infinite contrast, and exceptional off-axis uniformity — so neither has a structural image quality advantage from the panel itself.

The meaningful split comes down to three areas. First, refresh rate: the Samsung edges ahead with 144Hz versus the LG's 120Hz, which matters primarily for gaming and fast-motion content — smoother frame delivery and lower perceived judder at high frame rates. Second, HDR ecosystem: the LG supports Dolby Vision but lacks HDR10+, while the Samsung supports HDR10+ but omits Dolby Vision. Dolby Vision is more prevalent on streaming platforms and Blu-ray, whereas HDR10+ is stronger in the Samsung and Amazon ecosystems. Your preferred content source should guide this choice. Third, adaptive sync: the LG covers Nvidia G-Sync and AMD FreeSync Premium, making it more versatile across PC GPU brands, while the Samsung is AMD-exclusive with FreeSync Premium Pro, which adds low-framerate compensation — a meaningful perk for AMD GPU owners.

Overall, neither TV dominates unconditionally. The Samsung QN83S90FAE holds a practical edge for gamers — particularly those with AMD hardware — thanks to its higher refresh rate and FreeSync Premium Pro support. The LG OLED83C5PUA is the stronger pick for home theater and mixed-platform gaming, given its Dolby Vision compatibility and broader GPU sync coverage. Choose based on whether your priority is gaming performance (Samsung) or streaming/cinematic HDR fidelity (LG).

On the wired side, these two TVs are effectively identical: both offer 4x HDMI 2.1 ports, 3x USB ports, a single RJ45 ethernet jack, and Miracast wireless display mirroring. Shared Bluetooth 5.3 support rounds out a well-matched physical connectivity suite — neither has a meaningful port advantage over the other.

The one area where the specs diverge is wireless networking. The LG OLED83C5PUA supports Wi-Fi 6E (802.11ax) in addition to Wi-Fi 6, 5, and 4, while the Samsung QN83S90FAE tops out at Wi-Fi 5 (802.11ac). This is a notable practical difference: Wi-Fi 6E operates on the 6GHz band, which is far less congested than the 2.4GHz and 5GHz bands used by older standards. In dense environments — apartments, homes with many connected devices — this translates to more consistent throughput, lower latency for streaming and gaming, and greater future-proofing as Wi-Fi 6E routers become more common. Wi-Fi 5, by contrast, is a capable but aging standard that will increasingly feel the pressure of crowded networks.

The LG OLED83C5PUA holds a clear connectivity edge here, and it is entirely down to Wi-Fi 6E. If your router already supports 6GHz or you plan to upgrade soon, the LG will deliver a noticeably more reliable wireless experience. For users on older routers or wired ethernet setups, the difference is moot — but as a forward-looking consideration, the LG is the stronger choice in this category.

Audio capability is remarkably close between these two TVs. Both carry Dolby Atmos, Dolby Audio, Dolby Digital, built-in subwoofers, stereo speakers, and full HDMI ARC/eARC support — meaning either TV can pass high-quality audio to an external soundbar or AV receiver without compromise. For most users, this shared foundation will be the only thing that matters.

The single spec separating them is Dolby Digital Plus, which the Samsung QN83S90FAE supports and the LG OLED83C5PUA does not. Dolby Digital Plus is an enhanced version of the core Dolby Digital codec, capable of carrying higher bitrates and serving as the transport layer for Dolby Atmos streams over HDMI ARC (as opposed to eARC). In practice, this means the Samsung can decode richer Atmos signals through a standard ARC connection, whereas the LG relies on eARC to achieve the same — a distinction that only surfaces if your soundbar or receiver supports ARC but not eARC.

The Samsung QN83S90FAE earns a narrow edge here due to its Dolby Digital Plus support, which provides slightly broader compatibility with audio equipment over ARC. That said, for anyone using eARC-capable gear or the TV's built-in speakers, the real-world difference is negligible. This is a minor advantage rather than a decisive one.

At 83 inches, both TVs occupy nearly identical footprints — within 10mm of each other in width and height — so wall space and furniture clearance will not meaningfully differ between them. Both support VESA mounting, making either a viable candidate for a wall installation.

Where the two diverge is in thickness and weight, and those differences pull in opposite directions. The Samsung QN83S90FAE is noticeably slimmer at 44.9 mm versus the LG's 53.3 mm — a roughly 16% reduction that gives it a more elegant profile, particularly relevant for wall-mounted setups where panel depth is visible from the side. The LG OLED83C5PUA, however, is significantly lighter at 33 kg compared to the Samsung's 37.6 kg — a difference of about 4.6 kg, which is substantial when maneuvering or mounting a panel of this size. Fewer hands and less hardware stress on wall brackets can genuinely simplify installation.

There is no single winner here — it depends on the installation context. For wall mounting where aesthetics and slim depth matter most, the Samsung has the edge. For ease of handling during setup, or placement on a TV stand where depth is irrelevant, the LG's lighter chassis is the practical advantage. Buyers should weigh their specific installation scenario to determine which trade-off matters more.

Feature parity between these two TVs is striking. Both offer full smart TV platforms, AirPlay, Google Assistant, Alexa, smartphone remote support, USB recording, voice commands, and identical 1-year warranties. Neither supports Siri or Apple HomeKit, so Apple ecosystem users will find the same limitation on both sides. For the vast majority of smart TV use cases, the experience will feel essentially equivalent.

Two points of difference are worth noting. First, the Samsung QN83S90FAE includes a rechargeable remote control, while the LG does not — a small but recurring convenience that eliminates the need to replace batteries over time. Second, power consumption differs slightly: the LG draws 223W during operation versus the Samsung's 237W, with both idling at an identical 0.5W in standby. Over years of daily use, the LG's lower draw translates to a modest but real reduction in energy costs.

This category is close to a wash, but each TV holds one minor advantage. The Samsung wins on day-to-day convenience with its rechargeable remote, while the LG edges ahead on long-term energy efficiency. Neither difference is significant enough to be a deciding factor on its own, making this group essentially tied for most buyers.