LG QNED80 55" vs Samsung QN900D 65" (8K)
The Verdict
LG's QNED80 delivers exceptional value for mainstream 4K viewing at $699, featuring a quality quantum dot display with 700 nits brightness, native 120Hz refresh rate, and impressive 10ms gaming input lag. Samsung's QN900D represents cutting-edge 8K technology at $4999, boasting a massive 65-inch Neo QLED panel with 4000 nits peak brightness, superior 5ms input lag, and premium 6.2.4ch Dolby Atmos audio (90W vs LG's 20W). Picture quality differences are substantial,Samsung's Mini-LED backlighting and 8K resolution create dramatically superior contrast and detail, though 8K content remains scarce. For gaming, both handle 120Hz well, but Samsung's processing power and lower latency edge ahead. Budget-conscious buyers seeking excellent 4K performance should choose the LG; wealthy enthusiasts wanting future-proof technology with the best picture quality available should invest in Samsung's superior engineering and expanded smart features.
Who Should Buy
Buy the LG QNED80 55" if…
- →120Hz native panel with VRR at a mid-range price
- →Dolby Vision support for superior HDR compared to HDR10+ only TVs
- →webOS 24 is one of the best smart TV platforms available
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 QNED80 55"
Pros
- 120Hz native panel with VRR at a mid-range price
- Dolby Vision support for superior HDR compared to HDR10+ only TVs
- webOS 24 is one of the best smart TV platforms available
- Four HDMI ports with ALLM for multi-device setups
- Quantum Dot + NanoCell technology improves color accuracy
Cons
- Not OLED — contrast and black levels are significantly behind
- 700-nit brightness is modest for HDR highlights
- 20W speakers are underwhelming — needs a soundbar
- Edge-lit LED can show uneven backlighting in dark scenes
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 QNED80 55" | Samsung QN900D 65" (8K) |
|---|---|---|
| Body | ||
| VESA mount | 300 x 300mm | 400 x 400mm |
| Weight | 28.4 lbs | 61.7 lbs |
| Dimensions (w/ stand) | 48.5 x 30.7 x 9.3 inches | 57.1 x 36.8 x 12.7 inches |
| Audio | ||
| Output (watts) | 20 | 90 |
| Speakers | 2.0ch | 6.2.4ch Object Tracking Sound Pro |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 10 | 5 |
| Display | ||
| HDR | HDR10, HLG, Dolby Vision | Quantum HDR 64x, HDR10+, HLG |
| Size | 55" | 65" |
| Type | QNED (Quantum Dot NanoCell) | Neo QLED Mini-LED |
| Resolution | 3840 x 2160 (4K UHD) | 7680 x 4320 (8K) |
| Refresh rate | 120Hz (native) | 120Hz (8K@120Hz) |
| Brightness (nits) | 700 | 4000 |
| Smart TV | ||
| Os | webOS 24 | Tizen OS |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Bixby, Alexa, Google Assistant |
| Processor | ||
| Chipset | α8 AI Processor 4K | Neural Quantum Processor 8K |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 (802.11ac) | Wi-Fi 6E |
| Ethernet | ||
| Bluetooth | 5.1 | 5.3 |
| USB ports | 2 | 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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