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Dell - UltraSharp U3825QW vs ASUS - ROG Swift PG34WCDM

Last updated · How Mars Score works
UltraSharp U3825QWDELLRENDER
Probe A
Dell
UltraSharp U3825QW
71.2/ 100B
Performance70· 45%
Panel72· 40%
Connectivity· 15%
ROG Swift PG34WCDMASUSRENDER
Probe B
ASUS
ROG Swift PG34WCDM
75.1/ 100B
Performance84· 45%
Panel65· 40%
Connectivity· 15%
Quick verdict

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.

Buying advice

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).
Full readout

Spec comparison

Panel

SpecDell - UltraSharp U3825QWASUS - ROG Swift PG34WCDM
Screen size37.5 "lead34 "
Panel typeIPSQD-OLEDlead
Resolution4Klead1440p
Aspect ratio21:921:9
Curvedtruetrue

Performance

SpecDell - UltraSharp U3825QWASUS - ROG Swift PG34WCDM
Refresh rate120 Hz240 Hzlead
Response time (GtG)5 ms0.03 mslead
Peak brightness450 nits1300 nitslead
DCI-P3 coverage99 %99 %
HDRtruetrue
G-Syncfalsetruelead
FreeSyncfalsetruelead

Connectivity

SpecDell - UltraSharp U3825QWASUS - ROG Swift PG34WCDM
HDMI ports22
DisplayPort ports11
USB-C inputtruetrue
USB-C Power Delivery140 Wlead90 W
KVMtruetrue
Reader questions

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.

Drill down

Spec-level deep dives

By manufacturer

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