Dell - UltraSharp U3825QW vs LG - UltraGear 27GX790A-B
Between the UltraSharp U3825QW and UltraGear 27GX790A-B, the UltraSharp U3825QW comes out ahead in usb-c power delivery and screen size, while the UltraGear 27GX790A-B wins on refresh rate and peak brightness. Overall, the UltraSharp U3825QW scores 71.2 and the UltraGear 27GX790A-B scores 72.6 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (71.2 vs 72.6). The decision isn't about overall quality — both clear the bar — it's 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, dci-p3 coverage.
Pick the UltraGear 27GX790A-B 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, peak brightness, response time (gtg), among others.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
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 — 115.38% more. 140 W vs 65 W.
- ▲Screen size — 41.51% more. 37.5 " vs 26.5 ".
- ▲DCI-P3 coverage — 0.51% more. 99 % vs 98.5 %.
Why LG - UltraGear 27GX790A-B wins
- ▲Refresh rate — 300.00% more. 480 Hz vs 120 Hz.
- ▲Peak brightness — 188.89% more. 1300 nits vs 450 nits.
- ▲Response time (GtG) — 99.40% less. 0.03 ms vs 5 ms.
- ▲Has G-Sync.
- ▲Has FreeSync.
- ▲Panel type: OLED (vs IPS).
Spec comparison
Panel
| Spec | Dell - UltraSharp U3825QW | LG - UltraGear 27GX790A-B |
|---|---|---|
| Screen sizeⓘ | 37.5 "lead | 26.5 " |
| Panel typeⓘ | IPS | OLEDlead |
| Resolutionⓘ | 4Klead | 1440p |
| Aspect ratioⓘ | 21:9 | 16:9 |
| Curvedⓘ | truelead | false |
Performance
| Spec | Dell - UltraSharp U3825QW | LG - UltraGear 27GX790A-B |
|---|---|---|
| Refresh rateⓘ | 120 Hz | 480 Hzlead |
| Response time (GtG)ⓘ | 5 ms | 0.03 mslead |
| Peak brightnessⓘ | 450 nits | 1300 nitslead |
| DCI-P3 coverageⓘ | 99 %lead | 98.5 % |
| HDRⓘ | true | true |
| G-Syncⓘ | false | truelead |
| FreeSyncⓘ | false | truelead |
Connectivity
| Spec | Dell - UltraSharp U3825QW | LG - UltraGear 27GX790A-B |
|---|---|---|
| HDMI ports | 2 | 2 |
| DisplayPort ports | 1 | 1 |
| USB-C input | true | true |
| USB-C Power Deliveryⓘ | 140 Wlead | 65 W |
| KVM | truelead | false |
Frequently asked
Which has higher refresh rate, UltraSharp U3825QW or UltraGear 27GX790A-B?+
UltraGear 27GX790A-B refreshes at 480Hz vs 120Hz.
Which has faster response time, UltraSharp U3825QW or UltraGear 27GX790A-B?+
UltraGear 27GX790A-B responds in 0.03ms vs 5ms.
Does UltraSharp U3825QW or UltraGear 27GX790A-B have USB-C with power delivery?+
Both offer USB-C PD — 140W on UltraSharp U3825QW, 65W on UltraGear 27GX790A-B.
Spec-level deep dives
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