Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | TCL - QM751 Mini LED 65 | Samsung - S95F QD-OLED 77 |
|---|---|---|
| Refresh rate | 120 Hz | 165 Hz |
| Peak brightness | 3000 nits | 3800 nits |
| Screen size | 65 " | 77 " |
| HDMI 2.1 ports | 2 | 4 |
| Dolby Vision | true | false |
| Smart OS | Google TV | Tizen |
Between the QM751 Mini LED 65 and S95F QD-OLED 77, the QM751 Mini LED 65 comes out ahead in dolby vision / smart os, while the S95F QD-OLED 77 wins on refresh rate / peak brightness. Overall, the QM751 Mini LED 65 scores 70.6 and the S95F QD-OLED 77 scores 84.8 on our Mars Score.
Which should you buy?
The S95F QD-OLED 77 is the clear pick on raw spec strength, leading by 14.2 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the QM751 Mini LED 65 if you care most about dolby vision / smart os. The biggest gaps in its favor are dolby vision, smart os. The single most decisive one: Has Dolby Vision.
Pick the S95F QD-OLED 77 if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. Its strongest claims are refresh rate, peak brightness, screen size, among others. The single most decisive one: Refresh rate — 37.50% more. 165 Hz vs 120 Hz.
Both ship with comparable vrr, so those specs do not separate the two — focus on the differences below.
Bottom line: the S95F QD-OLED 77 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: TCL - QM751 Mini LED 65 or Samsung - S95F QD-OLED 77?
Samsung - S95F QD-OLED 77 leads the current Mars Score by 14.2 points.The more useful decision is the trade-off behind that result: compare screen size, panel type, refresh rate, hdmi 2.1 ports against the way you will actually use the product.
Choose TCL - QM751 Mini LED 65 if…
TCL - QM751 Mini LED 65 has the measurable edge on has dolby vision, smart os.
Choose Samsung - S95F QD-OLED 77 if…
Samsung - S95F QD-OLED 77 has the measurable edge on refresh rate hz, peak brightness nits, screen size in.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why TCL - QM751 Mini LED 65 wins
- ▲Has Dolby Vision.
- ▲Smart OS: Google TV (vs Tizen).
Why Samsung - S95F QD-OLED 77 wins
- ▲Refresh rate — 37.50% more. 165 Hz vs 120 Hz.
- ▲Peak brightness — 26.67% more. 3800 nits vs 3000 nits.
- ▲Screen size — 18.46% more. 77 " vs 65 ".
- ▲HDMI 2.1 ports — 2.00 more. 4 vs 2.
- ▲Panel type: QD-OLED (vs Mini-LED).
Spec comparison
Display
| Spec | TCL - QM751 Mini LED 65 | Samsung - S95F QD-OLED 77 |
|---|---|---|
| Screen size | 65 " | 77 "lead |
| Panel typeⓘ | Mini-LED | QD-OLEDlead |
| Resolutionⓘ | 4K | 4K |
| Refresh rateⓘ | 120 Hz | 165 Hzlead |
| Peak brightnessⓘ | 3000 nits | 3800 nitslead |
HDR & Smart
| Spec | TCL - QM751 Mini LED 65 | Samsung - S95F QD-OLED 77 |
|---|---|---|
| Dolby Visionⓘ | truelead | false |
| HDR10+ⓘ | true | true |
| Smart OS | Google TVlead | Tizen |
| Dolby Atmosⓘ | true | true |
Gaming
| Spec | TCL - QM751 Mini LED 65 | Samsung - S95F QD-OLED 77 |
|---|---|---|
| HDMI 2.1 portsⓘ | 2 | 4lead |
| VRRⓘ | true | true |
| ALLM | true | true |
Frequently asked
Which is brighter, QM751 Mini LED 65 or S95F QD-OLED 77?+
S95F QD-OLED 77 peaks at 3800 nits vs 3000 nits.
Which is better for gaming, QM751 Mini LED 65 or S95F QD-OLED 77?+
S95F QD-OLED 77 offers 165Hz refresh and 4 HDMI 2.1 ports.
Does QM751 Mini LED 65 or S95F QD-OLED 77 support Dolby Vision?+
QM751 Mini LED 65 supports Dolby Vision; S95F QD-OLED 77 does not.