LG C5 vs Samsung S90F: Which 83-Inch OLED TV Should You Choose?

At 83 inches, an OLED television stops feeling like a normal upgrade and starts becoming the centre of the room. The LG OLED83C5PSA and Samsung QA83S90FAES are two closely matched 2025 choices: both combine self-lit OLED pixels, 4K resolution, advanced AI processing and high-refresh-rate gaming. Their real differences are not about basic picture quality. They are about HDR formats, software ecosystems, processing preferences and how each television fits into the rest of your setup.

LG C5 vs Samsung S90F at a glance

Area	LG OLED83C5PSA	Samsung QA83S90FAES
Panel and size	83-inch 4K OLED evo	83-inch 4K OLED
Processor	α9 AI Processor 4K Gen8	NQ4 AI Gen3 Processor
HDR direction	Dolby Vision, HDR10 and HLG	OLED HDR+ and HDR10+ Adaptive/Gaming
Gaming	120Hz native, VRR up to 144Hz, G-Sync and FreeSync support	Motion Xcelerator up to 144Hz, VRR, FreeSync Premium Pro and G-Sync support
Smart platform	webOS 25	One UI Tizen
Best fit	Dolby Vision viewers and flexible gaming setups	Samsung ecosystem users and HDR10+ viewers

Picture quality: two interpretations of OLED

Both televisions use self-emissive OLED technology, allowing individual pixels to switch off for deep blacks and precise contrast. This is especially valuable on an 83-inch screen, where backlight blooming or uneven dark scenes would be easier to notice. Both are also well suited to wide seating arrangements because OLED maintains strong contrast and colour when viewed off-centre.

LG’s C5 uses the α9 AI Processor 4K Gen8 with AI Super Upscaling, Dynamic Tone Mapping Pro and Brightness Booster. Its main advantage for film enthusiasts is format support: Dolby Vision joins HDR10 and HLG, making the C5 a natural match for viewers whose streaming and disc libraries regularly use Dolby Vision.

Samsung takes a different route. The S90F uses the NQ4 AI Gen3 Processor, built around 128 neural networks for picture and sound optimisation. Samsung highlights 4K AI Upscaling Pro, OLED HDR+, Real Depth Enhancer, AI Motion Enhancer Pro and HDR Brightness Optimizer. It supports HDR10+ Adaptive and HDR10+ Gaming rather than Dolby Vision. That distinction matters more than marketing labels: the better choice depends partly on which HDR format appears most often in your content.

Gaming: both are genuinely high-end

Neither model treats gaming as an afterthought. The LG C5 has a native 120Hz panel with VRR support up to 144Hz, four HDMI inputs supporting 4K 120Hz features, Auto Low Latency Mode, NVIDIA G-Sync compatibility and AMD FreeSync compatibility. LG also supports Dolby Vision gaming at 4K 120Hz and puts the main controls together in Game Optimizer.

The Samsung S90F answers with Motion Xcelerator 144Hz, VRR, FreeSync Premium Pro, G-Sync support and its gaming interface. On both sets, the highest 144Hz mode is most relevant to a compatible gaming PC; current consoles generally target lower maximum refresh rates. For a PlayStation or Xbox setup, either television offers the essential low-latency and variable-refresh features expected from a premium OLED.

LG gains an edge if Dolby Vision gaming or broad PC compatibility is central to the setup. Samsung remains highly competitive for fast PC gaming and may feel more natural to buyers already using Samsung devices and SmartThings.

Smart experience and everyday use

The C5 runs webOS 25 and includes LG’s Magic Remote, which supports point-and-click navigation. Google Cast, Apple AirPlay, LG ThinQ and the Home Hub give it broad compatibility. Its interface suits viewers who want quick app access and a remote that behaves more like an on-screen pointer.

The S90F runs One UI Tizen, protected by Samsung Knox and designed around Samsung’s connected ecosystem. SmartThings is a meaningful advantage when the home already contains compatible Samsung appliances, phones or smart devices. Samsung also promises a multi-year path for supported Tizen upgrades, although individual apps and voice features can still vary by country.

Room planning matters at 83 inches

These televisions need more consideration than a typical living-room TV. Before ordering, measure wall width, viewing distance, cabinet clearance and the path from the entrance to the installation point. LG lists the C5 at approximately 1842 mm wide without the stand; Samsung’s regional 83-inch S90F specifications place it in a very similar physical class. A proper wall mount, soundbar clearance and safe professional handling are strongly recommended.

In Pakistan, also confirm the exact regional suffix, included remote, tuner support, warranty coverage and installation arrangement for the unit being supplied. Features such as streaming apps, broadcast tuners and voice services may differ by region even when the core panel and processor belong to the same model family.

Verdict: which 83-inch OLED should you choose?

Choose the LG OLED83C5PSA if Dolby Vision, webOS, the Magic Remote and LG’s broad gaming-format support fit your habits. It is the more straightforward recommendation for mixed movie and gaming use when Dolby Vision is important.

Choose the Samsung QA83S90FAES if you prefer Samsung’s processing style, HDR10+, One UI Tizen and SmartThings integration. It is particularly compelling for a Samsung-centred smart home and viewers who want strong motion processing for sport and games.

There is no weak option here. The better television is the one whose HDR format, interface and ecosystem match the content and devices you already use.

Specifications checked against the official LG OLED83C5PSA product page and Samsung 83-inch S90F product page. Regional features can vary.