LG C4 65" vs Samsung QN90C 65" (4K Neo QLED)
The Verdict
Both 65-inch 4K displays retail identically at $1799, yet offer distinctly different technologies. LG's C4 leverages OLED evo panels with perfect blacks, 1300 nits peak brightness, and exceptional color accuracy via Dolby Vision IQ,ideal for cinematic content. Samsung's QN90C counters with Mini-LED backlighting delivering superior peak brightness at 2000 nits and potential 144Hz gaming via firmware update, plus Object Tracking Sound+ for immersive audio. Gaming favors LG with 1ms input lag versus Samsung's 6ms, though both feature VRR and ALLM. Picture quality hinges on preference: OLED excels in contrast and uniformity, while Mini-LED dominates brightness and HDR peak performance. Samsung edges connectivity with Wi-Fi 6E. For home theater enthusiasts prioritizing contrast and motion, the C4 wins; competitive gamers and bright-room viewers should consider the QN90C's superior nits and higher refresh capability.
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 QN90C 65" (4K Neo QLED) if…
- →Excellent value for a Mini-LED flagship at $1,799
- →2000 nits peak brightness is outstanding for HDR in bright rooms
- →4x HDMI 2.1 with 4K@120Hz and VRR for next-gen gaming
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 QN90C 65" (4K Neo QLED)
Pros
- Excellent value for a Mini-LED flagship at $1,799
- 2000 nits peak brightness is outstanding for HDR in bright rooms
- 4x HDMI 2.1 with 4K@120Hz and VRR for next-gen gaming
- Slim anti-reflection screen works well in rooms with windows
- Object Tracking Sound moves audio to match on-screen action
Cons
- No Dolby Vision support
- Some blooming visible in very dark scenes with small bright highlights
- Viewing angles are narrower than OLED — best for straight-on viewing
- Tizen ads on the home screen detract from the premium experience
Full Specifications
| Spec | LG C4 65" | Samsung QN90C 65" (4K Neo QLED) |
|---|---|---|
| Body | ||
| VESA mount | 300 x 200mm | 300 x 300mm |
| Weight | 52.9 lbs | 53.0 lbs |
| Dimensions (w/ stand) | 57.0 x 36.9 x 10.1 inches | 57.0 x 35.3 x 11.4 inches |
| Dimensions | — | 57.0 x 32.7 x 1.0 inches |
| Audio | ||
| Output (watts) | 60 | 60 |
| Speakers | 2.2ch | 2.2.2ch Object Tracking Sound+ |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 1 | 6 |
| Display | ||
| HDR | Dolby Vision IQ, HDR10, HLG, Filmmaker Mode | Quantum HDR 32x, HDR10+, HLG |
| Size | 65" | 65" |
| Type | OLED evo | Neo QLED Mini-LED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 120Hz | 120Hz (144Hz via firmware update) |
| Brightness (nits) | 1300 | 2000 |
| 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 | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 (802.11ax) | Wi-Fi 6E |
| Ethernet | ||
| Bluetooth | 5.0 | 5.2 |
| USB ports | 3 | 2 |
| 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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