LG - UltraGear 27GP950-B vs Samsung - ViewFinity S9 (S90PC)
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | LG - UltraGear 27GP950-B | Samsung - ViewFinity S9 (S90PC) |
|---|---|---|
| Refresh rate | 160 Hz | 60 Hz |
| Response time (GtG) | 1 ms | 5 ms |
| DCI-P3 coverage | 98 % | 99 % |
| G-Sync | true | false |
| FreeSync | true | false |
| USB-C Power Delivery | 0 W | 90 W |
Between the UltraGear 27GP950-B and ViewFinity S9 (S90PC), the UltraGear 27GP950-B comes out ahead in refresh rate / response time (gtg), while the ViewFinity S9 (S90PC) wins on dci-p3 coverage / usb-c power delivery. Overall, the UltraGear 27GP950-B scores 69.5 and the ViewFinity S9 (S90PC) scores 65.9 on our Mars Score.
Which should you buy?
The UltraGear 27GP950-B edges ahead on the Mars Score (69.5 vs 65.9), but the 3.6-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the UltraGear 27GP950-B 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 refresh rate, response time (gtg), g-sync, among others. The single most decisive one: Refresh rate — 166.67% more. 160 Hz vs 60 Hz.
Pick the ViewFinity S9 (S90PC) if you care most about dci-p3 coverage / usb-c power delivery. Its strongest claims are dci-p3 coverage, usb-c power delivery. The single most decisive one: DCI-P3 coverage — 1.02% more. 99 % vs 98 %.
Both ship with comparable peak brightness, screen size, panel type, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: LG - UltraGear 27GP950-B or Samsung - ViewFinity S9 (S90PC)?
LG - UltraGear 27GP950-B leads the current Mars Score by 3.6 points.The more useful decision is the trade-off behind that result: compare refresh rate against the way you will actually use the product.
Choose LG - UltraGear 27GP950-B if…
LG - UltraGear 27GP950-B has the measurable edge on refresh rate hz, response time ms, has g sync.
Choose Samsung - ViewFinity S9 (S90PC) if…
Samsung - ViewFinity S9 (S90PC) has the measurable edge on color gamut dci p3 pct, has usb c pd w.
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 - UltraGear 27GP950-B wins
- ▲Refresh rate — 166.67% more. 160 Hz vs 60 Hz.
- ▲Response time (GtG) — 80.00% less. 1 ms vs 5 ms.
- ▲Has G-Sync.
- ▲Has FreeSync.
Why Samsung - ViewFinity S9 (S90PC) wins
- ▲DCI-P3 coverage — 1.02% more. 99 % vs 98 %.
- ▲USB-C Power Delivery: 90 W vs 0 W.
Spec comparison
Panel
| Spec | LG - UltraGear 27GP950-B | Samsung - ViewFinity S9 (S90PC) |
|---|---|---|
| Screen size | 27 " | 27 " |
| Panel typeⓘ | IPS | IPS |
| Resolutionⓘ | 4K | 5Klead |
| Aspect ratioⓘ | 16:9 | 16:9 |
| Curvedⓘ | false | false |
Performance
| Spec | LG - UltraGear 27GP950-B | Samsung - ViewFinity S9 (S90PC) |
|---|---|---|
| Refresh rateⓘ | 160 Hzlead | 60 Hz |
| Response time (GtG)ⓘ | 1 mslead | 5 ms |
| Peak brightnessⓘ | 600 nits | 600 nits |
| DCI-P3 coverageⓘ | 98 % | 99 %lead |
| HDRⓘ | true | true |
| G-Syncⓘ | truelead | false |
| FreeSyncⓘ | truelead | false |
Connectivity
| Spec | LG - UltraGear 27GP950-B | Samsung - ViewFinity S9 (S90PC) |
|---|---|---|
| HDMI ports | 2lead | 1 |
| DisplayPort ports | 1lead | 0 |
| USB-C inputⓘ | false | truelead |
| USB-C Power Deliveryⓘ | 0 W | 90 Wlead |
| KVM | false | false |
Frequently asked
Which has higher refresh rate, UltraGear 27GP950-B or ViewFinity S9 (S90PC)?+
UltraGear 27GP950-B refreshes at 160Hz vs 60Hz.
Which has faster response time, UltraGear 27GP950-B or ViewFinity S9 (S90PC)?+
UltraGear 27GP950-B responds in 1ms vs 5ms.
Does UltraGear 27GP950-B or ViewFinity S9 (S90PC) have USB-C with power delivery?+
ViewFinity S9 (S90PC) offers USB-C with 90W power delivery.