Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Dell - UltraSharp U3825QW | Gigabyte - M27Q X |
|---|---|---|
| USB-C Power Delivery | 140 W | 15 W |
| Refresh rate | 120 Hz | 240 Hz |
| Response time (GtG) | 5 ms | 0.3 ms |
| Screen size | 37.5 " | 27 " |
| Peak brightness | 450 nits | 400 nits |
| DCI-P3 coverage | 99 % | 92 % |
Between the UltraSharp U3825QW and M27Q X, the UltraSharp U3825QW comes out ahead in usb-c power delivery / screen size, while the M27Q X wins on refresh rate / response time (gtg). Overall, the UltraSharp U3825QW scores 68.4 and the M27Q X scores 67.6 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (68.4 vs 67.6). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
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, peak brightness, among others. The single most decisive one: USB-C Power Delivery — 833.33% more. 140 W vs 15 W.
Pick the M27Q X if you care most about refresh rate / response time (gtg). Its strongest claims are refresh rate, response time (gtg), g-sync, among others. The single most decisive one: Refresh rate — 100.00% more. 240 Hz vs 120 Hz.
Both ship with comparable 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: Dell - UltraSharp U3825QW or Gigabyte - M27Q X?
Dell - UltraSharp U3825QW leads the current Mars Score by 0.8 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 Dell - UltraSharp U3825QW if…
Dell - UltraSharp U3825QW has the measurable edge on has usb c pd w, screen size in, peak brightness nits.
Choose Gigabyte - M27Q X if…
Gigabyte - M27Q X has the measurable edge on refresh rate hz, response time ms, has g sync.
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 Dell - UltraSharp U3825QW wins
- ▲USB-C Power Delivery — 833.33% more. 140 W vs 15 W.
- ▲Screen size — 38.89% more. 37.5 " vs 27 ".
- ▲Peak brightness — 12.50% more. 450 nits vs 400 nits.
- ▲DCI-P3 coverage — 7.61% more. 99 % vs 92 %.
Why Gigabyte - M27Q X wins
- ▲Refresh rate — 100.00% more. 240 Hz vs 120 Hz.
- ▲Response time (GtG) — 94.00% less. 0.3 ms vs 5 ms.
- ▲Has G-Sync.
- ▲Has FreeSync.
Spec comparison
Panel
| Spec | Dell - UltraSharp U3825QW | Gigabyte - M27Q X |
|---|---|---|
| Screen size | 37.5 "lead | 27 " |
| Panel typeⓘ | IPS | IPS |
| Resolutionⓘ | 4Klead | 1440p |
| Aspect ratioⓘ | 21:9 | 16:9 |
| Curvedⓘ | truelead | false |
Performance
| Spec | Dell - UltraSharp U3825QW | Gigabyte - M27Q X |
|---|---|---|
| Refresh rateⓘ | 120 Hz | 240 Hzlead |
| Response time (GtG)ⓘ | 5 ms | 0.3 mslead |
| Peak brightnessⓘ | 450 nitslead | 400 nits |
| DCI-P3 coverageⓘ | 99 %lead | 92 % |
| HDRⓘ | true | true |
| G-Syncⓘ | false | truelead |
| FreeSyncⓘ | false | truelead |
Connectivity
| Spec | Dell - UltraSharp U3825QW | Gigabyte - M27Q X |
|---|---|---|
| HDMI ports | 2 | 2 |
| DisplayPort ports | 1 | 1 |
| USB-C inputⓘ | true | true |
| USB-C Power Deliveryⓘ | 140 Wlead | 15 W |
| KVM | true | true |
Frequently asked
Which has higher refresh rate, UltraSharp U3825QW or M27Q X?+
M27Q X refreshes at 240Hz vs 120Hz.
Which has faster response time, UltraSharp U3825QW or M27Q X?+
M27Q X responds in 0.3ms vs 5ms.
Does UltraSharp U3825QW or M27Q X have USB-C with power delivery?+
Both offer USB-C PD — 140W on UltraSharp U3825QW, 15W on M27Q X.