LG C5 OLED 65" vs Samsung QN90D 65"
The Verdict
The LG C5 OLED 65" and Samsung QN90D 65" sit in the same category and end up appealing to slightly different buyers. The LG C5 OLED 65" is the cheaper of the two at $1,400 versus $1,799, a difference of about $399. The LG C5 OLED 65" is the newer release, which usually means a faster chipset and longer software support. LG C5 OLED 65" stands out for 4k oled with perfect blacks, while Samsung QN90D 65" is praised for excellent mini-led backlighting with over 2,000 dimming zones for deep contrast. Use the side-by-side spec table below to compare cameras, displays, battery life and connectivity in detail and decide which one fits your priorities.
Who Should Buy
Buy the LG C5 OLED 65" if…
- →4K OLED with perfect blacks
- →144Hz with NVIDIA G-Sync and AMD FreeSync Premium
- →0.1ms response time for gaming
Buy the Samsung QN90D 65" if…
- →Excellent Mini-LED backlighting with over 2,000 dimming zones for deep contrast
- →All four HDMI ports support 4K@120Hz — ideal for multi-console gaming setups
- →Up to 4,000 nits peak brightness handles even the brightest HDR highlights
Pros & Cons
LG C5 OLED 65"
Pros
- 4K OLED with perfect blacks
- 144Hz with NVIDIA G-Sync and AMD FreeSync Premium
- 0.1ms response time for gaming
- Dolby Vision and Dolby Atmos
- 4x HDMI 2.1 ports
Cons
- $1400 is still premium for 65 inches
- Risk of burn-in with static content
- 40W speakers may need a soundbar
Samsung QN90D 65"
Pros
- Excellent Mini-LED backlighting with over 2,000 dimming zones for deep contrast
- All four HDMI ports support 4K@120Hz — ideal for multi-console gaming setups
- Up to 4,000 nits peak brightness handles even the brightest HDR highlights
- Anti-reflection coating dramatically cuts glare in bright living rooms
- Neural Quantum Processor 4K delivers sharp, accurate upscaling from lower-resolution content
Cons
- Mini-LED blooming can still appear around bright objects on dark backgrounds
- No Dolby Atmos pass-through from the TV's built-in speakers
- Tizen OS interface can feel cluttered with sponsored content and ads
- At $1,799 it is significantly pricier than competing Mini-LED options
Full Specifications
| Spec | LG C5 OLED 65" | Samsung QN90D 65" |
|---|---|---|
| Body | ||
| VESA mount | 300 x 300 | 400 x 400mm |
| Weight | 18.9 kg | 71.9 lbs |
| Dimensions (w/ stand) | — | 57.1 x 36.6 x 13.4 inches |
| Audio | ||
| Output (watts) | 40 | 60 |
| Dolby Atmos | ||
| Speakers | — | 4.2.2ch Object Tracking Sound+ |
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 9 | 5 |
| Display | ||
| HDR | Dolby Vision, HDR10, HLG | Quantum HDR+, HDR10+, HLG |
| Size | 65 inches | 65" |
| Type | OLED evo | Neo QLED Mini-LED |
| Resolution | 3840 x 2160 | 3840 x 2160 (4K UHD) |
| Refresh rate | 144Hz | 120Hz (4K@120Hz native) |
| Brightness (nits) | — | 4000 |
| Smart TV | ||
| Os | webOS 25 | Tizen OS |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Bixby, Alexa, Google Assistant |
| Processor | ||
| Chipset | α9 AI Gen8 | Neural Quantum Processor 4K |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6E | Wi-Fi 5 (802.11ac) |
| Ethernet | ||
| Bluetooth | 5.1 | 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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