Skip to content
vsMars
Head-to-head

Dell - UltraSharp U3825QW vs LG - UltraGear 45GX950A-B

Last updated · How Mars Score works
UltraSharp U3825QWDELLRENDER
Probe A
Dell
UltraSharp U3825QW
71.2/ 100B
Performance70· 45%
Panel72· 40%
Connectivity· 15%
UltraGear 45GX950A-BLGRENDER
Probe B
LG
UltraGear 45GX950A-B
83.8/ 100A
Performance81· 45%
Panel87· 40%
Connectivity· 15%
Quick verdict

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 71.2 and the UltraGear 45GX950A-B scores 83.8 on our Mars Score.

Buying advice

Which should you buy?

The UltraGear 45GX950A-B is the clear pick on raw spec strength, leading by 12.6 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.

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.

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.

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).
Full readout

Spec comparison

Panel

SpecDell - UltraSharp U3825QWLG - UltraGear 45GX950A-B
Screen size37.5 "45 "lead
Panel typeIPSOLEDlead
Resolution4K5Klead
Aspect ratio21:921:9
Curvedtruetrue

Performance

SpecDell - UltraSharp U3825QWLG - UltraGear 45GX950A-B
Refresh rate120 Hz165 Hzlead
Response time (GtG)5 ms0.03 mslead
Peak brightness450 nits1300 nitslead
DCI-P3 coverage99 %lead98.5 %
HDRtruetrue
G-Syncfalsetruelead
FreeSyncfalsetruelead

Connectivity

SpecDell - UltraSharp U3825QWLG - UltraGear 45GX950A-B
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 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.

Drill down

Spec-level deep dives

By manufacturer

More from the same brands

vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.