Samsung CU8000 55" vs TCL 6-Series R655 55" (Mini-LED QLED)
The Verdict
Samsung's CU8000 delivers budget-friendly 4K viewing with competent basics, while TCL's 6-Series R655 represents a significant performance leap justifying its $350 premium. Picture quality differences are substantial: TCL's mini-LED backlighting with 1500 nits brightness and Dolby Vision support crushes Samsung's 300-nit Crystal UHD panel, offering dramatically better contrast, HDR performance, and dark scene detail. Gaming enthusiasts will appreciate TCL's 120Hz refresh rate, variable refresh rate support, and 7ms input lag versus Samsung's 12ms response time. Audio gets a boost with TCL's 30W Dolby Atmos system compared to Samsung's basic 20W stereo. Connectivity favors TCL with Wi-Fi 6, four HDMI ports, and Google TV's superior app ecosystem versus Tizen OS. Samsung excels only in affordability and basic functionality for casual viewers. TCL 6-Series R655 is the clear winner for anyone prioritizing picture quality, gaming, or comprehensive streaming,budget-conscious buyers should consider whether CU8000's $399 price justifies accepting significantly compromised visual performance.
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 TCL 6-Series R655 55" (Mini-LED QLED) if…
- →Best picture quality under $800 — Mini-LED at this price is remarkable
- →Supports both Dolby Vision AND HDR10+ — covers every HDR format
- →1500 nits peak brightness rivals TVs costing twice as much
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
TCL 6-Series R655 55" (Mini-LED QLED)
Pros
- Best picture quality under $800 — Mini-LED at this price is remarkable
- Supports both Dolby Vision AND HDR10+ — covers every HDR format
- 1500 nits peak brightness rivals TVs costing twice as much
- 4K@120Hz with VRR and ALLM — excellent for PS5 and Xbox Series X
- Google TV platform with wide app support and Chromecast built-in
Cons
- TCL software updates are slower and less frequent than Samsung/LG
- Build quality and remote feel budget-oriented
- Some blooming around bright objects on dark backgrounds
- Sound quality from 30W speakers is average — soundbar recommended
Full Specifications
| Spec | Samsung CU8000 55" | TCL 6-Series R655 55" (Mini-LED QLED) |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 300 x 300mm |
| Weight | 27.1 lbs | 37.3 lbs |
| Dimensions (w/ stand) | 48.8 x 30.8 x 8.8 inches | 48.2 x 30.4 x 11.3 inches |
| Dimensions | — | 48.2 x 27.8 x 3.0 inches |
| Audio | ||
| Output (watts) | 20 | 30 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 12 | 7 |
| Display | ||
| HDR | HDR10+, HLG | Dolby Vision, HDR10+, HDR10, HLG |
| Size | 55" | 55" |
| Type | Crystal UHD LED | Mini-LED QLED (VA LCD) |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 60Hz | 120Hz |
| Brightness (nits) | 300 | 1500 |
| Smart TV | ||
| Os | Tizen OS | Google TV |
| Voice assistant | Bixby, Alexa | Google Assistant |
| Processor | ||
| Chipset | Crystal Processor 4K | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 (802.11ac) | Wi-Fi 6 |
| Ethernet | ||
| Bluetooth | 5.2 | 5.0 |
| USB ports | 1 | 1 |
| 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.
Explore more in tvs, see all Samsung products or all TCL products. View full details for the Samsung CU8000 55" or the TCL 6-Series R655 55" (Mini-LED QLED).