LG C4 65" vs Samsung QN900D 65" (8K)
The Verdict
LG's C4 OLED delivers exceptional picture quality with perfect blacks and 1300-nit brightness, paired with 1ms input lag ideal for gaming and a refined webOS 24 interface. Samsung's QN900D represents the premium tier with its 8K resolution, Neo QLED mini-LED technology producing 4000 nits of peak brightness, superior 6.2.4ch audio system, and Wi-Fi 6E connectivity,though 5ms gaming latency trails slightly. For most consumers, the C4 offers outstanding value with OLED contrast and gaming performance at $1799. However, those prioritizing cutting-edge technology, maximum brightness for bright rooms, and future-proofed 8K content capability should invest in the QN900D, despite its $3200 premium and currently limited 8K content availability. The LG C4 remains the smarter choice for typical viewing.
Who Should Buy
Buy the LG C4 65" if…
- →Perfect black levels from self-emissive OLED pixels — best-in-class contrast
- →All four HDMI 2.1 ports at full bandwidth with VRR, ALLM, and G-Sync Compatible
- →1ms input lag makes it one of the best gaming TVs at any price
Buy the Samsung QN900D 65" (8K) if…
- →True 8K resolution with AI-powered upscaling for lower-resolution content
- →Mini-LED backlighting with thousands of dimming zones for stunning contrast
- →90W 6.2.4ch audio system with Dolby Atmos is best-in-class built-in sound
Category Scores
Pros & Cons
LG C4 65"
Pros
- Perfect black levels from self-emissive OLED pixels — best-in-class contrast
- All four HDMI 2.1 ports at full bandwidth with VRR, ALLM, and G-Sync Compatible
- 1ms input lag makes it one of the best gaming TVs at any price
- Dolby Vision IQ and Dolby Atmos support for premium cinematic experience
- webOS 24 is clean, fast, and nearly ad-free compared to Tizen
Cons
- OLED burn-in risk with prolonged static content (e.g. news tickers, HUDs)
- Peak brightness trails Mini-LED rivals in very bright HDR highlights
- Slightly lower brightness than the G4, limiting HDR pop in sunlit rooms
- USB-A ports are only USB 2.0 speed
Samsung QN900D 65" (8K)
Pros
- True 8K resolution with AI-powered upscaling for lower-resolution content
- Mini-LED backlighting with thousands of dimming zones for stunning contrast
- 90W 6.2.4ch audio system with Dolby Atmos is best-in-class built-in sound
- 8K@120Hz via HDMI 2.1 future-proofs for next-gen content
- Infinity Screen design with near-zero bezels
Cons
- Extremely expensive at $4,999 for very limited 8K content
- Tizen OS still shows ads on the home screen
- Massive and heavy — requires sturdy mounting
- No Dolby Vision support — Samsung uses HDR10+ exclusively
Full Specifications
| Spec | LG C4 65" | Samsung QN900D 65" (8K) |
|---|---|---|
| Body | ||
| VESA mount | 300 x 200mm | 400 x 400mm |
| Weight | 52.9 lbs | 61.7 lbs |
| Dimensions (w/ stand) | 57.0 x 36.9 x 10.1 inches | 57.1 x 36.8 x 12.7 inches |
| Audio | ||
| Output (watts) | 60 | 90 |
| Speakers | 2.2ch | 6.2.4ch Object Tracking Sound Pro |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 1 | 5 |
| Display | ||
| HDR | Dolby Vision IQ, HDR10, HLG, Filmmaker Mode | Quantum HDR 64x, HDR10+, HLG |
| Size | 65" | 65" |
| Type | OLED evo | Neo QLED Mini-LED |
| Resolution | 3840 x 2160 (4K UHD) | 7680 x 4320 (8K) |
| Refresh rate | 120Hz | 120Hz (8K@120Hz) |
| Brightness (nits) | 1300 | 4000 |
| Smart TV | ||
| Os | webOS 24 | Tizen OS |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Bixby, Alexa, Google Assistant |
| Processor | ||
| Chipset | α9 Gen 7 AI Processor 4K | Neural Quantum Processor 8K |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 (802.11ax) | Wi-Fi 6E |
| Ethernet | ||
| Bluetooth | 5.0 | 5.3 |
| USB ports | 3 | 3 |
| HDMI ports | 4 | 4 |
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This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
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