Samsung CU8000 55" vs Samsung QN90C 65" (4K Neo QLED)
The Verdict
Samsung's CU8000 delivers budget-friendly 4K viewing at 55 inches with HDR10+ support and acceptable 12ms input lag, making it suitable for casual gaming and streaming. Meanwhile, the QN90C 65-inch Neo QLED represents a premium tier entirely, featuring Mini-LED backlighting with 2000 nits peak brightness, 120Hz refresh rate, VRR support, and ultra-responsive 6ms input lag for serious gamers. Audio capabilities differ drastically: CU8000 offers basic 2.0-channel 20W speakers versus QN90C's immersive 2.2.2ch Object Tracking Sound+ with Dolby Atmos and 60W output. Picture quality separation is substantial,Neo QLED's Quantum HDR 32x processing and superior contrast vastly outperform Crystal UHD's standard LED panel. Connectivity favors QN90C with Wi-Fi 6E, four HDMI ports, and comprehensive assistant support. At $399, CU8000 excels as an entry-level 4K option for budget-conscious buyers. QN90C's $1799 premium justifies itself for cinephiles and competitive gamers demanding flagship performance. Recommendation: Choose CU8000 for value-conscious streaming; select QN90C if premium picture quality and gaming features justify the investment.
Who Should Buy
Buy the Samsung CU8000 55" if…
- →Very affordable entry into Samsung's 4K smart TV lineup
- →HDR10+ support improves contrast in compatible content
- →Tizen OS is a mature, full-featured smart TV platform
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
Samsung CU8000 55"
Pros
- Very affordable entry into Samsung's 4K smart TV lineup
- HDR10+ support improves contrast in compatible content
- Tizen OS is a mature, full-featured smart TV platform
- Lightweight and easy to wall-mount at 27 lbs
- Crystal Processor 4K provides decent upscaling from 1080p
Cons
- 60Hz panel — no 120Hz for smooth gaming or sports
- Low peak brightness limits HDR impact
- No VRR or HDMI 2.1 — poor for next-gen consoles
- 20W speakers sound thin — a soundbar is essential
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 | Samsung CU8000 55" | Samsung QN90C 65" (4K Neo QLED) |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 300 x 300mm |
| Weight | 27.1 lbs | 53.0 lbs |
| Dimensions (w/ stand) | 48.8 x 30.8 x 8.8 inches | 57.0 x 35.3 x 11.4 inches |
| Dimensions | — | 57.0 x 32.7 x 1.0 inches |
| Audio | ||
| Output (watts) | 20 | 60 |
| Speakers | 2.0ch | 2.2.2ch Object Tracking Sound+ |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 12 | 6 |
| Display | ||
| HDR | HDR10+, HLG | Quantum HDR 32x, HDR10+, HLG |
| Size | 55" | 65" |
| Type | Crystal UHD LED | Neo QLED Mini-LED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 60Hz | 120Hz (144Hz via firmware update) |
| Brightness (nits) | 300 | 2000 |
| Smart TV | ||
| Os | Tizen OS | Tizen OS |
| Voice assistant | Bixby, Alexa | Bixby, Alexa, Google Assistant |
| Processor | ||
| Chipset | Crystal Processor 4K | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 (802.11ac) | Wi-Fi 6E |
| Ethernet | ||
| Bluetooth | 5.2 | 5.2 |
| USB ports | 1 | 2 |
| HDMI ports | 3 | 4 |
Related Comparisons
- Samsung QN90C 65" (4K Neo QLED) vs Vizio P-Series Quantum 65"
- Samsung QN90C 65" (4K Neo QLED) vs Vizio OLED 55"
- Samsung QN90C 65" (4K Neo QLED) vs TCL QM8 65"
- Samsung QN90C 65" (4K Neo QLED) vs Sony X90L 65"
- Samsung QN90C 65" (4K Neo QLED) vs Sony X90K 65" (Full Array LED)
- Samsung QN90C 65" (4K Neo QLED) vs Sony X85K 65" (LED)
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.
Explore more in tvs, see all Samsung products or all Samsung products. View full details for the Samsung CU8000 55" or the Samsung QN90C 65" (4K Neo QLED).