Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | LG - B5 OLED 65 | Samsung - QN90F Neo QLED 65 |
|---|---|---|
| Peak brightness | 750 nits | 2400 nits |
| Refresh rate | 120 Hz | 144 Hz |
| Dolby Vision | true | false |
| Panel type | OLED | Mini-LED |
| Smart OS | webOS | Tizen |
Between the B5 OLED 65 and QN90F Neo QLED 65, the B5 OLED 65 comes out ahead in dolby vision / panel type, while the QN90F Neo QLED 65 wins on peak brightness / refresh rate. Overall, the B5 OLED 65 scores 65 and the QN90F Neo QLED 65 scores 70.3 on our Mars Score.
Which should you buy?
The QN90F Neo QLED 65 edges ahead on the Mars Score (65 vs 70.3), but the 5.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the B5 OLED 65 if you care most about dolby vision / panel type. The biggest gaps in its favor are dolby vision, panel type, smart os. The single most decisive one: Has Dolby Vision.
Pick the QN90F Neo QLED 65 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 peak brightness, refresh rate. The single most decisive one: Peak brightness — 220.00% more. 2400 nits vs 750 nits.
Both ship with comparable screen size, hdmi 2.1 ports, vrr, so those specs do not separate the two — focus on the differences below.
Bottom line: the QN90F Neo QLED 65 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: LG - B5 OLED 65 or Samsung - QN90F Neo QLED 65?
Samsung - QN90F Neo QLED 65 leads the current Mars Score by 5.3 points.The more useful decision is the trade-off behind that result: compare panel type, refresh rate against the way you will actually use the product.
Choose LG - B5 OLED 65 if…
LG - B5 OLED 65 has the measurable edge on has dolby vision, panel type, smart os.
Choose Samsung - QN90F Neo QLED 65 if…
Samsung - QN90F Neo QLED 65 has the measurable edge on peak brightness nits, refresh rate hz.
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 LG - B5 OLED 65 wins
- ▲Has Dolby Vision.
- ▲Panel type: OLED (vs Mini-LED).
- ▲Smart OS: webOS (vs Tizen).
Why Samsung - QN90F Neo QLED 65 wins
- ▲Peak brightness — 220.00% more. 2400 nits vs 750 nits.
- ▲Refresh rate — 20.00% more. 144 Hz vs 120 Hz.
Spec comparison
Display
| Spec | LG - B5 OLED 65 | Samsung - QN90F Neo QLED 65 |
|---|---|---|
| Screen size | 65 " | 65 " |
| Panel typeⓘ | OLEDlead | Mini-LED |
| Resolutionⓘ | 4K | 4K |
| Refresh rateⓘ | 120 Hz | 144 Hzlead |
| Peak brightnessⓘ | 750 nits | 2400 nitslead |
HDR & Smart
| Spec | LG - B5 OLED 65 | Samsung - QN90F Neo QLED 65 |
|---|---|---|
| Dolby Visionⓘ | truelead | false |
| HDR10+ⓘ | false | truelead |
| Smart OS | webOSlead | Tizen |
| Dolby Atmosⓘ | true | true |
Gaming
| Spec | LG - B5 OLED 65 | Samsung - QN90F Neo QLED 65 |
|---|---|---|
| HDMI 2.1 portsⓘ | 4 | 4 |
| VRRⓘ | true | true |
| ALLM | true | true |
Frequently asked
Which is brighter, B5 OLED 65 or QN90F Neo QLED 65?+
QN90F Neo QLED 65 peaks at 2400 nits vs 750 nits.
Which is better for gaming, B5 OLED 65 or QN90F Neo QLED 65?+
QN90F Neo QLED 65 offers 144Hz refresh and 4 HDMI 2.1 ports.
Does B5 OLED 65 or QN90F Neo QLED 65 support Dolby Vision?+
B5 OLED 65 supports Dolby Vision; QN90F Neo QLED 65 does not.