Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | BenQ - PD3225U | Dell - UltraSharp U3825QW |
|---|---|---|
| Refresh rate | 60 Hz | 120 Hz |
| USB-C Power Delivery | 90 W | 140 W |
| Screen size | 31.5 " | 37.5 " |
| Peak brightness | 400 nits | 450 nits |
| DCI-P3 coverage | 98 % | 99 % |
Between the PD3225U and UltraSharp U3825QW, the PD3225U comes out ahead in several specs, while the UltraSharp U3825QW wins on refresh rate / usb-c power delivery. Overall, the PD3225U scores 64.8 and the UltraSharp U3825QW scores 68.4 on our Mars Score.
Which should you buy?
The UltraSharp U3825QW edges ahead on the Mars Score (64.8 vs 68.4), but the 3.6-point gap is small enough that the right pick comes down to which spec advantages matter to you.
The PD3225U does not pull ahead on any single popular-comparison spec — its strengths sit in the spec-table groups rather than the headline advantages.
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. Its strongest claims are refresh rate, usb-c power delivery, screen size, among others. The single most decisive one: Refresh rate — 100.00% more. 120 Hz vs 60 Hz.
Both ship with comparable response time (gtg), panel type, g-sync, 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: BenQ - PD3225U or Dell - UltraSharp U3825QW?
Dell - UltraSharp U3825QW leads the current Mars Score by 3.6 points.The more useful decision is the trade-off behind that result: compare screen size, refresh rate against the way you will actually use the product.
Choose BenQ - PD3225U if…
BenQ - PD3225U does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose Dell - UltraSharp U3825QW if…
Dell - UltraSharp U3825QW has the measurable edge on refresh rate hz, has usb c pd w, 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 BenQ - PD3225U wins
- No decisive advantages.
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 — 19.05% more. 37.5 " vs 31.5 ".
- ▲Peak brightness — 12.50% more. 450 nits vs 400 nits.
- ▲DCI-P3 coverage — 1.02% more. 99 % vs 98 %.
Spec comparison
Panel
| Spec | BenQ - PD3225U | Dell - UltraSharp U3825QW |
|---|---|---|
| Screen size | 31.5 " | 37.5 "lead |
| Panel typeⓘ | IPS | IPS |
| Resolutionⓘ | 4K | 4K |
| Aspect ratioⓘ | 16:9 | 21:9 |
| Curvedⓘ | false | truelead |
Performance
| Spec | BenQ - PD3225U | Dell - UltraSharp U3825QW |
|---|---|---|
| Refresh rateⓘ | 60 Hz | 120 Hzlead |
| Response time (GtG)ⓘ | 5 ms | 5 ms |
| Peak brightnessⓘ | 400 nits | 450 nitslead |
| DCI-P3 coverageⓘ | 98 % | 99 %lead |
| HDRⓘ | true | true |
| G-Syncⓘ | false | false |
| FreeSyncⓘ | false | false |
Connectivity
| Spec | BenQ - PD3225U | Dell - UltraSharp U3825QW |
|---|---|---|
| HDMI ports | 1 | 2lead |
| DisplayPort ports | 1 | 1 |
| USB-C inputⓘ | true | true |
| USB-C Power Deliveryⓘ | 90 W | 140 Wlead |
| KVM | true | true |
Frequently asked
Which has higher refresh rate, PD3225U or UltraSharp U3825QW?+
UltraSharp U3825QW refreshes at 120Hz vs 60Hz.
Which has faster response time, PD3225U or UltraSharp U3825QW?+
UltraSharp U3825QW responds in 5ms vs 5ms.
Does PD3225U or UltraSharp U3825QW have USB-C with power delivery?+
Both offer USB-C PD — 90W on PD3225U, 140W on UltraSharp U3825QW.