Dell - UltraSharp U3825QW vs ASUS - ROG Swift PG34WCDM
Between the UltraSharp U3825QW and ROG Swift PG34WCDM, the UltraSharp U3825QW comes out ahead in usb-c power delivery and screen size, while the ROG Swift PG34WCDM wins on peak brightness and refresh rate. Overall, the UltraSharp U3825QW scores 71.2 and the ROG Swift PG34WCDM scores 75.1 on our Mars Score.
Which should you buy?
The ROG Swift PG34WCDM edges ahead on the Mars Score (71.2 vs 75.1), but the 3.9-point gap is small enough that the right pick comes down to which spec advantages matter to you.
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 usb-c power delivery, screen size.
Pick the ROG Swift PG34WCDM 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, response time (gtg), among others.
Both ship with comparable dci-p3 coverage, so those specs don't 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 tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Dell - UltraSharp U3825QW wins
- ▲USB-C Power Delivery — 55.56% more. 140 W vs 90 W.
- ▲Screen size — 10.29% more. 37.5 " vs 34 ".
Why ASUS - ROG Swift PG34WCDM wins
- ▲Peak brightness — 188.89% more. 1300 nits vs 450 nits.
- ▲Refresh rate — 100.00% more. 240 Hz vs 120 Hz.
- ▲Response time (GtG) — 99.40% less. 0.03 ms vs 5 ms.
- ▲Has G-Sync.
- ▲Has FreeSync.
- ▲Panel type: QD-OLED (vs IPS).
Spec comparison
Panel
| Spec | Dell - UltraSharp U3825QW | ASUS - ROG Swift PG34WCDM |
|---|---|---|
| Screen sizeⓘ | 37.5 "lead | 34 " |
| Panel typeⓘ | IPS | QD-OLEDlead |
| Resolutionⓘ | 4Klead | 1440p |
| Aspect ratioⓘ | 21:9 | 21:9 |
| Curvedⓘ | true | true |
Performance
| Spec | Dell - UltraSharp U3825QW | ASUS - ROG Swift PG34WCDM |
|---|---|---|
| Refresh rateⓘ | 120 Hz | 240 Hzlead |
| Response time (GtG)ⓘ | 5 ms | 0.03 mslead |
| Peak brightnessⓘ | 450 nits | 1300 nitslead |
| DCI-P3 coverageⓘ | 99 % | 99 % |
| HDRⓘ | true | true |
| G-Syncⓘ | false | truelead |
| FreeSyncⓘ | false | truelead |
Connectivity
| Spec | Dell - UltraSharp U3825QW | ASUS - ROG Swift PG34WCDM |
|---|---|---|
| HDMI ports | 2 | 2 |
| DisplayPort ports | 1 | 1 |
| USB-C input | true | true |
| USB-C Power Deliveryⓘ | 140 Wlead | 90 W |
| KVM | true | true |
Frequently asked
Which has higher refresh rate, UltraSharp U3825QW or ROG Swift PG34WCDM?+
ROG Swift PG34WCDM refreshes at 240Hz vs 120Hz.
Which has faster response time, UltraSharp U3825QW or ROG Swift PG34WCDM?+
ROG Swift PG34WCDM responds in 0.03ms vs 5ms.
Does UltraSharp U3825QW or ROG Swift PG34WCDM have USB-C with power delivery?+
Both offer USB-C PD — 140W on UltraSharp U3825QW, 90W on ROG Swift PG34WCDM.
Spec-level deep dives
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