Samsung S90C 55" (4K OLED) vs TCL QM8 65"
The Verdict
Samsung's S90C delivers superior picture quality through QD-OLED technology, offering perfect blacks, infinite contrast, and exceptional color accuracy that mini-LED cannot match. Its 1300-nit peak brightness handles HDR content beautifully, while 6ms input lag satisfies competitive gamers. However, TCL's QM8 impresses with a larger 65" screen, significantly brighter 5000-nit peak output better suited for bright rooms, and Wi-Fi 6 connectivity at $600 less. Both feature 120Hz refresh rates, VRR/ALLM support, and 2.1ch Dolby Atmos audio. The S90C excels in contrast and color performance for cinephiles in controlled environments, while the QM8 provides exceptional brightness, value, and versatility for bright living spaces and sports content. For most buyers prioritizing value and brightness, TCL's QM8 represents superior overall value; purists seeking OLED's unmatched contrast should choose Samsung.
Who Should Buy
Buy the Samsung S90C 55" (4K OLED) if…
- →QD-OLED at $1,599 is the most affordable OLED with quantum dot color
- →Infinite contrast ratio with perfect black levels
- →144Hz with VRR — excellent for PS5 and Xbox Series X gaming
Buy the TCL QM8 65" if…
- →Exceptional value — up to 5,000 nits peak brightness for under $1,000
- →One of the brightest consumer TVs available regardless of price bracket
- →All four HDMI 2.1 ports with VRR and ALLM for 4K@120Hz gaming
Category Scores
Pros & Cons
Samsung S90C 55" (4K OLED)
Pros
- QD-OLED at $1,599 is the most affordable OLED with quantum dot color
- Infinite contrast ratio with perfect black levels
- 144Hz with VRR — excellent for PS5 and Xbox Series X gaming
- Vivid, wide color gamut coverage exceeds traditional WOLED
- Ultra-slim panel at 0.4 inches looks stunning mounted
Cons
- 55-inch S90C uses a different (WOLED) panel in some regions — verify before buying
- No Dolby Vision support
- 40W audio is weaker than the S95C — soundbar recommended
- Wi-Fi 5 only on the 55-inch model
TCL QM8 65"
Pros
- Exceptional value — up to 5,000 nits peak brightness for under $1,000
- One of the brightest consumer TVs available regardless of price bracket
- All four HDMI 2.1 ports with VRR and ALLM for 4K@120Hz gaming
- Google TV provides a smooth, well-supported smart TV experience
- Dolby Vision IQ and HDR10+ covered for the full HDR ecosystem
Cons
- Aggressive brightness can look oversaturated out of the box — calibration recommended
- Mini-LED blooming is more visible than on premium Samsung or Sony panels
- Build quality and remote feel cheaper than Samsung or Sony equivalents
- Fan noise under extreme brightness conditions reported by some users
Full Specifications
| Spec | Samsung S90C 55" (4K OLED) | TCL QM8 65" |
|---|---|---|
| Body | ||
| VESA mount | 300 x 300mm | 400 x 300mm |
| Weight | 33.5 lbs | 68.3 lbs |
| Dimensions | 48.2 x 27.7 x 0.4 inches | — |
| Dimensions (w/ stand) | 48.2 x 30.2 x 9.3 inches | 56.7 x 36.6 x 12.8 inches |
| Audio | ||
| Output (watts) | 40 | 50 |
| Speakers | 2.1ch | 2.1ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 6 | 6 |
| Display | ||
| HDR | Quantum HDR OLED, HDR10+, HLG | Dolby Vision IQ, HDR10+, HDR10, HLG |
| Size | 55" | 65" |
| Type | QD-OLED | Mini-LED QLED |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K UHD) |
| Refresh rate | 120Hz (144Hz via Game Mode) | 120Hz |
| Brightness (nits) | 1300 | 5000 |
| Smart TV | ||
| Os | Tizen OS | Google TV |
| Voice assistant | Bixby, Alexa, Google Assistant | Google Assistant |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6 (802.11ax) |
| Ethernet | ||
| Bluetooth | 5.2 | 5.0 |
| USB ports | 2 | 2 |
| HDMI ports | 4 | 4 |
| Processor | ||
| Chipset | — | AiPQ Pro Processor |
Related Comparisons
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 S90C 55" (4K OLED) or the TCL QM8 65".