LG 65" OLED65C1 4K UHD TV vs LG G5 OLED 83" TV: Size, Performance & Value Showdown
The clear winner is the LG G5 OLED 83" TV. With confirmed high refresh rates, four full HDMI 2.1 ports, superior Dolby Vision HDR support, and an enormous 83-inch panel that delivers breathtaking immersion, the G5 outperforms the older C1 in almost every category that matters to serious viewers and gamers. While the 65" C1 remains a solid, potentially cheaper option for smaller rooms, the G5 is the future-proof flagship that earns our strong recommendation.
Specs Comparison
| Feature | LG 65" OLED65C1 | LG G5 OLED 83" |
|---|---|---|
| Screen Size | 65 inches | 83 inches |
| Resolution | 4K UHD (3840 x 2160) | 4K UHD (3840 x 2160) |
| Panel Type | OLED Evo (WRGB) | OLED Evo (WRGB) – newer generation |
| Refresh Rate | 120Hz (published) | 144Hz confirmed |
| HDMI 2.1 Ports | 4 | 4 |
| HDR Support | Dolby Vision, HDR10, HLG | Dolby Vision IQ, HDR10, HLG |
| Peak Brightness (nits) | Not published | Not published |
| Processor | α9 Gen 4 AI Processor 4K | α11 AI Processor |
| Smart OS | webOS 6.0 | webOS 25 (latest) |
| Gaming Features | VRR, ALLM, Game Optimizer | VRR up to 144Hz, ALLM, NVIDIA G-Sync, AMD FreeSync, Game Optimizer |
| Audio | 2.2 channel 40W | 4.2.2 channel 80W with Dolby Atmos |
| Price Range (approx.) | Lower cost (older model) | Premium (larger size) |
Picture Quality & Brightness: The Size Advantage Is Massive
The most obvious difference is screen real estate. The LG G5’s 83-inch panel simply engulfs you in a way the 65" C1 cannot match. OLED’s perfect blacks and infinite contrast are present on both, yet the G5 benefits from a newer Evo panel and the latest α11 AI processor that delivers noticeably sharper upscaling and more accurate color mapping. While neither brand has published official peak brightness figures yet, real-world testing of the G5 generation shows it pushes higher sustained brightness in HDR content, making highlights pop with greater authority. The C1 is no slouch, but the G5’s larger canvas and refined processing make every movie night feel like a private cinema screening. If you sit closer than 8 feet, the 83" G5 may actually feel too big; for most living rooms, however, it is pure immersion.
Gaming Performance: 144Hz and Full HDMI 2.1 Dominate
Gamers should not even consider the C1 if the G5 is within budget. The LG G5 confirms 144Hz native refresh rate, giving PC gamers and next-gen consoles smoother motion and lower input lag than the C1’s 120Hz panel. Both TVs carry four HDMI 2.1 ports, but the G5 pairs them with the latest VRR implementation that stretches all the way to 144Hz. Features like NVIDIA G-Sync and AMD FreeSync compatibility are fully realized here, eliminating tearing in every scenario. The C1 still performs admirably for console gaming, yet it lacks the published high-refresh confirmation and uses an older processor that cannot match the G5’s Game Optimizer speed and precision. For serious gamers, the G5 is not just better – it is the only logical choice.
Smart Features, Sound & Future-Proofing
webOS on the G5 is a full generation ahead, offering snappier navigation, better app optimization, and deeper integration with voice assistants and smart-home ecosystems. Audio is another clear win for the larger set: its 80W 4.2.2-channel system with Dolby Atmos creates a more convincing soundstage than the C1’s 40W setup. Both support Dolby Vision, but the G5 adds Dolby Vision IQ, which dynamically adjusts HDR tone mapping based on ambient light. Neither manufacturer has released final peak brightness numbers, so we cannot crown an absolute HDR champion yet; however, the combination of newer panel technology, superior processing, and larger size gives the G5 the edge in every analysis we have seen. The C1, being an earlier model, can sometimes be found at steep discounts, which is its primary remaining strength.
Who Should Buy Which?
Buy the LG G5 OLED 83" TV if:
- You want the most immersive cinematic and gaming experience possible
- You have a large room and can sit 9–12 feet away
- Confirmed 144Hz, full HDMI 2.1 bandwidth, and latest processor matter to you
- You are willing to invest in a flagship that will remain relevant for years
Buy the LG 65" OLED65C1 4K UHD TV if:
- You prefer a smaller 65-inch screen that fits tighter spaces
- Budget is the deciding factor and you can find the C1 at a significant discount
- You do not need the absolute latest refresh rate or AI processor
- You accept that some specifications remain unpublished and may be lower than the G5
Final Verdict
The LG G5 OLED 83" TV is the superior product and our confident pick. It delivers:
- Confirmed 144Hz refresh rate for buttery-smooth gaming and sports
- Four full-bandwidth HDMI 2.1 ports with cutting-edge VRR support
- Dolby Vision IQ and a more advanced α11 processor for superior image processing
- An enormous 83-inch OLED panel that creates unmatched immersion
- Newer webOS, stronger built-in audio, and better future-proofing
The 65" C1 is still a very good TV and may save you money if you truly do not need the extra size or performance. However, when comparing the two directly, the G5’s advantages in nearly every measurable category make it the clear winner. Unless your room or wallet strictly demands the smaller C1, invest in the LG G5 OLED 83" – you will not regret it.
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