Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | LG - G5 OLED evo 65 | Samsung - S90F QD-OLED 65 |
|---|---|---|
| Peak brightness | 4000 nits | 2100 nits |
| Refresh rate | 165 Hz | 144 Hz |
| Dolby Vision | true | false |
| Smart OS | webOS | Tizen |
| Panel type | OLED | QD-OLED |
Between the G5 OLED evo 65 and S90F QD-OLED 65, the G5 OLED evo 65 comes out ahead in peak brightness / refresh rate, while the S90F QD-OLED 65 wins on panel type. Overall, the G5 OLED evo 65 scores 80.4 and the S90F QD-OLED 65 scores 74.7 on our Mars Score.
Which should you buy?
The G5 OLED evo 65 edges ahead on the Mars Score (80.4 vs 74.7), but the 5.7-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the G5 OLED evo 65 if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are peak brightness, refresh rate, dolby vision, among others. The single most decisive one: Peak brightness — 90.48% more. 4000 nits vs 2100 nits.
Pick the S90F QD-OLED 65 if you care most about panel type. Its strongest claims are panel type. The single most decisive one: Panel type: QD-OLED (vs OLED).
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 G5 OLED evo 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 - G5 OLED evo 65 or Samsung - S90F QD-OLED 65?
LG - G5 OLED evo 65 leads the current Mars Score by 5.7 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 - G5 OLED evo 65 if…
LG - G5 OLED evo 65 has the measurable edge on peak brightness nits, refresh rate hz, has dolby vision.
Choose Samsung - S90F QD-OLED 65 if…
Samsung - S90F QD-OLED 65 has the measurable edge on panel type.
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 - G5 OLED evo 65 wins
- ▲Peak brightness — 90.48% more. 4000 nits vs 2100 nits.
- ▲Refresh rate — 14.58% more. 165 Hz vs 144 Hz.
- ▲Has Dolby Vision.
- ▲Smart OS: webOS (vs Tizen).
Why Samsung - S90F QD-OLED 65 wins
- ▲Panel type: QD-OLED (vs OLED).
Spec comparison
Display
| Spec | LG - G5 OLED evo 65 | Samsung - S90F QD-OLED 65 |
|---|---|---|
| Screen size | 65 " | 65 " |
| Panel typeⓘ | OLED | QD-OLEDlead |
| Resolutionⓘ | 4K | 4K |
| Refresh rateⓘ | 165 Hzlead | 144 Hz |
| Peak brightnessⓘ | 4000 nitslead | 2100 nits |
HDR & Smart
| Spec | LG - G5 OLED evo 65 | Samsung - S90F QD-OLED 65 |
|---|---|---|
| Dolby Visionⓘ | truelead | false |
| HDR10+ⓘ | false | truelead |
| Smart OS | webOSlead | Tizen |
| Dolby Atmosⓘ | true | true |
Gaming
| Spec | LG - G5 OLED evo 65 | Samsung - S90F QD-OLED 65 |
|---|---|---|
| HDMI 2.1 portsⓘ | 4 | 4 |
| VRRⓘ | true | true |
| ALLM | true | true |
Frequently asked
Which is brighter, G5 OLED evo 65 or S90F QD-OLED 65?+
G5 OLED evo 65 peaks at 4000 nits vs 2100 nits.
Which is better for gaming, G5 OLED evo 65 or S90F QD-OLED 65?+
G5 OLED evo 65 offers 165Hz refresh and 4 HDMI 2.1 ports.
Does G5 OLED evo 65 or S90F QD-OLED 65 support Dolby Vision?+
G5 OLED evo 65 supports Dolby Vision; S90F QD-OLED 65 does not.