Samsung CU8500 55" (Crystal UHD) vs Sony X90K 65" (Full Array LED)
The Verdict
Samsung's CU8500 delivers entry-level 4K viewing at an exceptional price point, featuring Crystal UHD technology, HDR10+ support, and respectable 350-nit brightness for casual content consumption. Sony's X90K represents a premium tier entirely,its 65-inch Full Array LED panel with 1200-nit peak brightness, 120Hz refresh rate, Dolby Vision, and VRR gaming support creates dramatically superior contrast, color accuracy, and motion handling. Gaming performance heavily favors Sony with 8ms input lag versus Samsung's 11ms, plus variable refresh rate support. Audio quality tilts Sony's way with Dolby Atmos versus basic 2.0 stereo. While Samsung excels at budget-conscious buyers seeking basic 4K and smart features, the $620 price premium for Sony justifies itself through superior picture quality, gaming capabilities, and future-proofing. For serious home theater or gaming, Sony wins decisively; budget-first shoppers should consider Samsung's strong value proposition.
Who Should Buy
Buy the Samsung CU8500 55" (Crystal UHD) if…
- →Affordable 4K at $479 makes it one of Samsung's best budget options
- →Crystal Processor 4K handles decent upscaling for the price
- →Tizen OS provides a full smart TV platform with all major apps
Buy the Sony X90K 65" (Full Array LED) if…
- →Excellent Sony image processing at a competitive mid-range price
- →Full Array Local Dimming provides solid contrast for an LED TV
- →Dolby Vision and Dolby Atmos for home theater HDR experience
Category Scores
Pros & Cons
Samsung CU8500 55" (Crystal UHD)
Pros
- Affordable 4K at $479 makes it one of Samsung's best budget options
- Crystal Processor 4K handles decent upscaling for the price
- Tizen OS provides a full smart TV platform with all major apps
- HDR10+ support for compatible content
- Slim design with clean aesthetics for the price segment
Cons
- 60Hz panel — no 120Hz or VRR for gaming
- 350 nits brightness is too dim for convincing HDR
- 20W speakers are weak — external audio recommended
- Only 3 HDMI ports, none are HDMI 2.1
- No Dolby Atmos or Dolby Vision
Sony X90K 65" (Full Array LED)
Pros
- Excellent Sony image processing at a competitive mid-range price
- Full Array Local Dimming provides solid contrast for an LED TV
- Dolby Vision and Dolby Atmos for home theater HDR experience
- 120Hz with VRR and ALLM — capable gaming display
- Google TV with Chromecast built-in for seamless streaming
Cons
- Only 2 of 4 HDMI ports support 4K@120Hz
- 20W audio is very weak — soundbar essential
- Bluetooth 4.2 and Wi-Fi 5 are behind current standards
- Some blooming visible with full array backlighting in dark scenes
Full Specifications
| Spec | Samsung CU8500 55" (Crystal UHD) | Sony X90K 65" (Full Array LED) |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 300 x 300mm |
| Weight | 30.4 lbs | 46.3 lbs |
| Dimensions | 48.4 x 28.0 x 1.0 inches | 57.2 x 33.1 x 2.7 inches |
| Dimensions (w/ stand) | 48.4 x 30.3 x 8.6 inches | 57.2 x 35.3 x 12.0 inches |
| Audio | ||
| Output (watts) | 20 | 20 |
| Speakers | 2.0ch | 2.0ch Acoustic Multi-Audio |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 11 | 8 |
| Display | ||
| HDR | HDR10+, HLG | Dolby Vision, HDR10, HLG |
| Size | 55" | 65" |
| Type | Crystal UHD (VA LCD) | Full Array LED (VA LCD) |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K) |
| Refresh rate | 60Hz | 120Hz |
| Brightness (nits) | 350 | 1200 |
| Smart TV | ||
| Os | Tizen OS | Google TV |
| Voice assistant | Bixby, Alexa | Google Assistant, Alexa |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Ethernet | ||
| Bluetooth | 5.2 | 4.2 |
| USB ports | 1 | 2 |
| HDMI ports | 3 | 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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