Dell - UltraSharp U3825QW vs Samsung - ViewFinity S9 (S90PC)
Between the UltraSharp U3825QW and ViewFinity S9 (S90PC), the UltraSharp U3825QW comes out ahead in refresh rate and usb-c power delivery, while the ViewFinity S9 (S90PC) wins on peak brightness. Overall, the UltraSharp U3825QW scores 71.2 and the ViewFinity S9 (S90PC) scores 59.3 on our Mars Score.
Which should you buy?
The UltraSharp U3825QW is the clear pick on raw spec strength, leading by 11.9 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 UltraSharp U3825QW 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, usb-c power delivery, screen size.
Pick the ViewFinity S9 (S90PC) 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.
Both ship with comparable response time (gtg), dci-p3 coverage, panel type, so those specs don't separate the two — focus on the differences below.
Bottom line: the UltraSharp U3825QW is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Dell - UltraSharp U3825QW wins
- ▲Refresh rate — 100.00% more. 120 Hz vs 60 Hz.
- ▲USB-C Power Delivery — 55.56% more. 140 W vs 90 W.
- ▲Screen size — 38.89% more. 37.5 " vs 27 ".
Why Samsung - ViewFinity S9 (S90PC) wins
- ▲Peak brightness — 33.33% more. 600 nits vs 450 nits.
Spec comparison
Panel
| Spec | Dell - UltraSharp U3825QW | Samsung - ViewFinity S9 (S90PC) |
|---|---|---|
| Screen sizeⓘ | 37.5 "lead | 27 " |
| Panel typeⓘ | IPS | IPS |
| Resolutionⓘ | 4K | 5Klead |
| Aspect ratioⓘ | 21:9 | 16:9 |
| Curvedⓘ | truelead | false |
Performance
| Spec | Dell - UltraSharp U3825QW | Samsung - ViewFinity S9 (S90PC) |
|---|---|---|
| Refresh rateⓘ | 120 Hzlead | 60 Hz |
| Response time (GtG)ⓘ | 5 ms | 5 ms |
| Peak brightnessⓘ | 450 nits | 600 nitslead |
| DCI-P3 coverageⓘ | 99 % | 99 % |
| HDRⓘ | true | true |
| G-Syncⓘ | false | false |
| FreeSyncⓘ | false | false |
Connectivity
| Spec | Dell - UltraSharp U3825QW | Samsung - ViewFinity S9 (S90PC) |
|---|---|---|
| HDMI ports | 2lead | 1 |
| DisplayPort ports | 1lead | 0 |
| USB-C input | true | true |
| USB-C Power Deliveryⓘ | 140 Wlead | 90 W |
| KVM | truelead | false |
Frequently asked
Which has higher refresh rate, UltraSharp U3825QW or ViewFinity S9 (S90PC)?+
UltraSharp U3825QW refreshes at 120Hz vs 60Hz.
Which has faster response time, UltraSharp U3825QW or ViewFinity S9 (S90PC)?+
ViewFinity S9 (S90PC) responds in 5ms vs 5ms.
Does UltraSharp U3825QW or ViewFinity S9 (S90PC) have USB-C with power delivery?+
Both offer USB-C PD — 140W on UltraSharp U3825QW, 90W on ViewFinity S9 (S90PC).
Spec-level deep dives
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