Dell - UltraSharp U3825QW vs LG - UltraGear 45GX950A-B
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Dell - UltraSharp U3825QW | LG - UltraGear 45GX950A-B |
|---|---|---|
| Peak brightness | 450 nits | 1300 nits |
| Response time (GtG) | 5 ms | 0.03 ms |
| USB-C Power Delivery | 140 W | 90 W |
| Refresh rate | 120 Hz | 165 Hz |
| Screen size | 37.5 " | 45 " |
| G-Sync | false | true |
Between the UltraSharp U3825QW and UltraGear 45GX950A-B, the UltraSharp U3825QW comes out ahead in usb-c power delivery / dci-p3 coverage, while the UltraGear 45GX950A-B wins on peak brightness / response time (gtg). Overall, the UltraSharp U3825QW scores 68.4 and the UltraGear 45GX950A-B scores 81.4 on our Mars Score.
Which should you buy?
The UltraGear 45GX950A-B is the clear pick on raw spec strength, leading by 13.0 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the UltraSharp U3825QW if you care most about usb-c power delivery / dci-p3 coverage. The biggest gaps in its favor are usb-c power delivery, dci-p3 coverage. The single most decisive one: USB-C Power Delivery — 55.56% more. 140 W vs 90 W.
Pick the UltraGear 45GX950A-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 peak brightness, response time (gtg), refresh rate, among others. The single most decisive one: Peak brightness — 188.89% more. 1300 nits vs 450 nits.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
Bottom line: the UltraGear 45GX950A-B is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Dell - UltraSharp U3825QW or LG - UltraGear 45GX950A-B?
LG - UltraGear 45GX950A-B leads the current Mars Score by 13.0 points.The more useful decision is the trade-off behind that result: compare screen size, refresh rate, panel type 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, color gamut dci p3 pct.
Choose LG - UltraGear 45GX950A-B if…
LG - UltraGear 45GX950A-B has the measurable edge on peak brightness nits, response time ms, refresh rate hz.
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 — 55.56% more. 140 W vs 90 W.
- ▲DCI-P3 coverage — 0.51% more. 99 % vs 98.5 %.
Why LG - UltraGear 45GX950A-B wins
- ▲Peak brightness — 188.89% more. 1300 nits vs 450 nits.
- ▲Response time (GtG) — 99.40% less. 0.03 ms vs 5 ms.
- ▲Refresh rate — 37.50% more. 165 Hz vs 120 Hz.
- ▲Screen size — 20.00% more. 45 " vs 37.5 ".
- ▲Has G-Sync.
- ▲Has FreeSync.
- ▲Panel type: OLED (vs IPS).
Spec comparison
Panel
| Spec | Dell - UltraSharp U3825QW | LG - UltraGear 45GX950A-B |
|---|---|---|
| Screen size | 37.5 " | 45 "lead |
| Panel typeⓘ | IPS | OLEDlead |
| Resolutionⓘ | 4K | 5Klead |
| Aspect ratioⓘ | 21:9 | 21:9 |
| Curvedⓘ | true | true |
Performance
| Spec | Dell - UltraSharp U3825QW | LG - UltraGear 45GX950A-B |
|---|---|---|
| Refresh rateⓘ | 120 Hz | 165 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 45GX950A-B |
|---|---|---|
| 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 UltraGear 45GX950A-B?+
UltraGear 45GX950A-B refreshes at 165Hz vs 120Hz.
Which has faster response time, UltraSharp U3825QW or UltraGear 45GX950A-B?+
UltraGear 45GX950A-B responds in 0.03ms vs 5ms.
Does UltraSharp U3825QW or UltraGear 45GX950A-B have USB-C with power delivery?+
Both offer USB-C PD — 140W on UltraSharp U3825QW, 90W on UltraGear 45GX950A-B.