DELL UltraSharp U4025QW computer monitor 101.6 cm (40") 5120 x 2160 pixels 5K Ultra HD LCD Silver

DELL

DELL UltraSharp U4025QW computer monitor 101.6 cm (40") 5120 x 2160 pixels 5K Ultra HD LCD Silver

Name: DELL UltraSharp U4025QW computer monitor 101.6 cm (40") 5120 x 2160 pixels 5K Ultra HD LCD Silver
Brand: DELL

40-inch curved display with 120 Hz refresh rate

Manufacturer reference DELL-U4025QW

67 /100 Its best score: the largest screen, rated "very large" on its category’s scale.

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What the DELL UltraSharp U4025QW computer monitor 101.6 cm (40") 5120 x 2160 pixels 5K Ultra HD LCD Silver is worth

The DELL U4025QW is a PC monitor with a 40-inch screen aimed at setups that need a large display area, featuring a 120 Hz refresh rate and an 8 ms response time.

Within the monitor market, its 40-inch size sits well above the median measured (27 inches), as does its brightness of 450 cd/m² compared to a median of 300 cd/m². Its 120 Hz refresh rate also exceeds the median of 100 Hz. However, its color support of 1.07 million colors trails the median of 16.7 million, and its 8 ms response time is slower than the median of 4 ms.

With an overall score of 65/100, this model suits setups where screen size and smoothness matter more than fine color rendering, such as multitasking across several windows on one large display.

What the spec sheet says

101.6 cm (40") Silver
Height adjustment 15 cm Built-in speaker(s)
HDMI HDMI version: 2.1 DisplayPorts quantity: 1 DisplayPort version: 1.4
Screen shape: Curved
Maximum refresh rate: 120 Hz Response time: 8 ms
5120 x 2160 pixels 5K Ultra HD Panel type: IPS
Energy efficiency class (SDR): F ENERGY STAR, TCO RoHS

Its scores, criterion by criterion

Scores out of 100, calculated from the datasheet and compared with the market. The full method is public.

Screen size Very large

40 " · category median: 27 "

Brightness Very bright

450 cd/m² · category median: 300 cd/m²

Smoothness Smooth

120 Hz · category median: 120 Hz

Responsiveness Responsive

8 ms · category median: 5 ms

Colours Basic

1.1 · category median: 16.7

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Documents

What the manufacturer publishes about this model. Each document opens in a new tab.

EU Energy Label PDF 74.2 KB Document PDF 56.3 KB Manual PDF 9.6 MB Document PDF 103.0 KB Manual PDF 584.4 KB Manual PDF 11.5 MB Document PDF 86.8 KB Manual PDF 2.7 MB Document PDF 3.9 MB Manual PDF 10.2 MB Document PDF 111.7 KB Document PDF 106.5 KB Manual PDF 5.4 MB

Specifications

Display 38

Display diagonal 101.6 cm (40")

Display resolution 5120 x 2160 pixels

HD type 5K Ultra HD

Native aspect ratio 21:9

Display technology LCD

Panel type IPS

Touchscreen No

Response time 8 ms

Screen shape Curved

Contrast ratio (typical) 2000:1

Maximum refresh rate 120 Hz

Display number of colours 1.07 billion colours

LED backlight Yes

Backlight type Edge LED

Display brightness (peak) 600 cd/m²

Display brightness (typical) 450 cd/m²

Anti-glare screen Yes

Screen curvature rating 2500R

Supported graphics resolutions 640 x 480 (VGA), 720 x 400, 800 x 600 (SVGA), 1024 x 768 (XGA), 1152 x 864 (XGA+), 1280 x 1024 (SXGA), 1280 x 800, 1600 x 1200, 1680 x 1050 (WSXGA+), 1920 x 1080 (HD 1080), 1920 x 1200 (WUXGA), 2048 x 1152, 2048 x 1280, 2560 x 1080, 3840 x 2160, 4096 x 2160, 5120 x 2160

Supported video modes 480p, 720p, 1080p

Viewing angle, horizontal 178°

Viewing angle, vertical 178°

Response time (fast) 5 ms

Pixel pitch 0.1815 x 0.1815 mm

Pixel density 140 ppi

Horizontal scan range 25 - 280 kHz

Vertical scan range 48 - 120 Hz

Viewable size, horizontal 92.9 cm

Viewable size, vertical 39.2 cm

Viewable size diagonal 100.9 cm

High Dynamic Range (HDR) supported Yes

Surface hardness 3H

Colour gamut standard DCI-P3

Colour gamut 99%

sRGB coverage (typical) 100%

Dual ambient light sensor Yes

Dell ComfortView technology Yes

Heat dissipation 134.8 BTU/h

Performance 5

AMD FreeSync No

Flicker-free technology Yes

Low Blue Light technology Yes

Windows operating systems supported Windows 10, Yes

Mac operating systems supported MacOS

Multimedia 4

Built-in speaker(s) Yes

Built-in camera No

Number of speakers 2

RMS rated power 18 W

Design 3

Product colour Silver

Front bezel colour Black

Feet colour Silver

Ports & interfaces 19

Built-in USB hub Yes

HDMI Yes

Headphone out No

Number of USB Type-C upstream ports quantity 2

USB Type-A downstream ports quantity 5

USB Type-C downstream ports quantity 3

USB Type-C DisplayPort Alternate Mode Yes

USB Power Delivery (USB PD) Yes

USB Power Delivery up to 140 W

HDMI ports quantity 1

HDMI version 2.1

DisplayPorts quantity 1

DisplayPort version 1.4

Thunderbolt 4 ports quantity 2

Audio output Yes

Built-in KVM switch Yes

HDCP Yes

HDCP version 1.4/2.3

DC-in jack Yes

Ergonomics 15

VESA mounting Yes

Cable lock slot Yes

Height adjustment Yes

Panel mounting interface 100 x 100 mm

Cable management Yes

Cable lock slot type Kensington

Adjustable height (max) 15 cm

Swivelling Yes

Swivel angle range -30 - 30°

Tilt adjustment Yes

Tilt angle range -5 - 21°

Picture-in-Picture Yes

On Screen Display (OSD) Yes

Plug and Play Yes

LED indicators Yes

Power 13

Energy efficiency class (SDR) F

Energy efficiency class (HDR) G

Energy consumption (SDR) per 1000 hours 40 kWh

Energy consumption (HDR) per 1000 hours 62 kWh

Power consumption (typical) 39.5 W

Power consumption (standby) 0.4 W

Power consumption (max) 380 W

Power consumption (off) 0.3 W

AC input voltage 100 - 240 V

AC input frequency 50/60 Hz

Input current 4.2 A

Power supply type Internal

Energy efficiency scale A to G

Weight & dimensions 11

Width (with stand) 946.6 mm

Depth (with stand) 252.8 mm

Height (with stand) 472.3 mm

Weight (with stand) 11.7 kg

Width (without stand) 946.6 mm

Depth (without stand) 108 mm

Height (without stand) 419.1 mm

Weight (without stand) 8.35 kg

Bezel width (side) 1.13 cm

Bezel width (top) 1.13 cm

Bezel width (bottom) 1.58 cm

Packaging data 1

Package weight 19 kg

Packaging content 5

Stand included Yes

Cables included AC, DisplayPort, HDMI, Thunderbolt, USB Type-A to USB Type-C

Quick start guide Yes

DisplayPort cable length 1.8 m

HDMI cable length 1.8 m

Sustainability 2

Sustainability certificates ENERGY STAR, TCO

Doesn't contain PVC/BFR

Carbon footprint 6

Total carbon footprint (kg of CO2e) 480

Carbon emissions, manufacturing (kg of CO2e) 196.8

Carbon emissions, logistics (kg of CO2e) 35.52

Carbon emissions, energy usage (kg of CO2e) 192.48

Carbon emissions, end-of-life (kg of CO2e) 55.2

PAIA version GaBi version 1, 2024

Other features 6

Picture-by-Picture (PbP) Yes

Heavy metals free Hg (mercury)

Automatic brightness control Yes

Compliance certificates RoHS

Ethernet LAN data rates 2500 Mbit/s

Ethernet LAN (RJ-45) ports 1

Brand-specific features 1

Dell Display Manager (DDM) compatibility Yes

Who this model suits

It’s for you if

Your first criterion is the screen size: it happens to be its best score.

You want a good score on the brightness, above its category average.

You prefer a model tracked across several merchants, to buy at the right time.

Skip it if

Its lowest score is on the colour count: skip it if that is decisive for you.

Frequently asked questions

Answers drawn from this model’s datasheet.

No, at 8 ms the screen is rather slow compared to the market median of 4 ms. Its strengths lie elsewhere, in its 40-inch size and its 120 Hz smoothness.

No, with 1.07 million colours it stays basic compared to the market median of 16.7 million. Its 450 cd/m² brightness partly compensates, offering a very bright display.