Products
Dell U4025QW
Dell U3425WE
Tested using Methodology v2.1.1
Updated Nov 27, 2025 08:40 PM
SEE PRICE
Amazon.com
Tested using Methodology v2.0.1
Updated Feb 19, 2025 04:49 PM
SEE PRICE
Amazon.com
Max Refresh Rate
120 Hz
Size
40"
Pixel Type
IPS
Native Resolution
5120 x 2160
Max Refresh Rate
120 Hz
Size
34"
Pixel Type
IPS
Native Resolution
3440 x 1440
Our Verdict
Dell U4025QW
Dell U3425WE
The Dell U4025QW and the Dell U3425WE are both ultrawide productivity monitors in Dell's UltraSharp lineup. They have many of the same features, including their large USB hub and Thunderbolt 4 support, but there are a few differences. The larger screen on the U4025QW gives you more screen space, and it has a higher resolution for sharper text. The U4025QW also supports HDR, which the U3425WE doesn't.
Variants
- U4025QW (40")
- U3425WE (34")
Check Price
40"
U4025QW
SEE PRICE
Amazon.com
34"
U3425WE
SEE PRICE
Amazon.com
40"
U4025QW
SEE PRICE
Walmart.com
34"
U3425WE
SEE PRICE
Walmart.com
40"
U4025QW
SEE PRICE
B&H
34"
U3425WE
SEE PRICE
B&H
40"
U4025QW
SEE PRICE
BestBuy.com
34"
U3425WE
SEE PRICE
BestBuy.com
Main Differences for
PC Gaming
PC Gaming
Threshold
PC Gaming
6.3
5.2
10,000 cd/m² Rec. 2020 Coverage ICtCp
38.1%
N/A
1,000 cd/m² DCI-P3 Coverage ICtCp
68.1%
N/A
Rec. 2020 Coverage xy
77.8%
N/A
VRR Motion Performance
5.2
4.4
Full Comparison
Design
Style
Design Picture
Curved
Yes
Yes
Curve Radius
2500R
1900R
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
8.0
8.0
Build Quality Picture
Ergonomics
7.7
7.8
Ergonomics Picture
Back Picture
Height Adjustment
5.9" (15.0 cm)
5.9" (15.0 cm)
Min Height To Top Of Panel
18.5" (46.9 cm)
15.2" (38.7 cm)
Tilt Range
-20° to 5°
-21° to 5°
Rotate Portrait/Landscape
No
No
Swivel Range
-30° to 30°
-30° to 30°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
15.4" (39.0 cm)
14.3" (36.2 cm)
Base Depth
10.0" (25.5 cm)
9.6" (24.5 cm)
Thickness (With Display)
8.1" (20.5 cm)
7.5" (19.0 cm)
Weight (With Display)
25.8 lbs (11.7 kg)
22.7 lbs (10.3 kg)
Display
Display Picture
Size
40"
34"
Housing Width
37.8" (96.1 cm)
32.0" (81.3 cm)
Housing Height
16.5" (41.9 cm)
14.2" (36.0 cm)
Thickness (Without Stand)
4.1" (10.5 cm)
3.3" (8.5 cm)
Weight (Without Stand)
18.5 lbs (8.4 kg)
17.0 lbs (7.7 kg)
Borders Size (Bezels)
0.4" (1.0 cm)
0.3" (0.9 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
Internal
Internal
Picture Quality
Contrast
7.1
7.1
Checkerboard Picture
Native Contrast
1,918 : 1
1,984 : 1
Contrast With Local Dimming
2,011 : 1
N/A
Local Dimming
2.0
0.0
Local Dimming Video
Local Dimming
Yes
No
Backlight
Edge
Edge
SDR Brightness
7.5
7.9
Real Scene
297 cd/m²
337 cd/m²
Peak 2% Window
287 cd/m²
323 cd/m²
Peak 10% Window
289 cd/m²
325 cd/m²
Peak 25% Window
290 cd/m²
326 cd/m²
Peak 50% Window
291 cd/m²
327 cd/m²
Peak 100% Window
290 cd/m²
328 cd/m²
Sustained 2% Window
287 cd/m²
322 cd/m²
Sustained 10% Window
288 cd/m²
325 cd/m²
Sustained 25% Window
290 cd/m²
326 cd/m²
Sustained 50% Window
290 cd/m²
327 cd/m²
Sustained 100% Window
290 cd/m²
328 cd/m²
Automatic Brightness Limiting (ABL)
0.001
0.001
Minimum Brightness
26 cd/m²
32 cd/m²
HDR Brightness
7.8
0.0
EOTF
VESA DisplayHDR Certification
DisplayHDR 600
No Certification
Real Scene
619 cd/m²
N/A
Peak 2% Window
559 cd/m²
N/A
Peak 10% Window
588 cd/m²
N/A
Peak 25% Window
591 cd/m²
N/A
Peak 50% Window
597 cd/m²
N/A
Peak 100% Window
601 cd/m²
N/A
Sustained 2% Window
558 cd/m²
N/A
Sustained 10% Window
587 cd/m²
N/A
Sustained 25% Window
590 cd/m²
N/A
Sustained 50% Window
596 cd/m²
N/A
Sustained 100% Window
600 cd/m²
N/A
Automatic Brightness Limiting (ABL)
0.004
N/A
Gray Uniformity
7.3
8.0
50% Uniformity Picture
50% Std. Dev.
2.639%
2.635%
50% DSE
0.190%
0.150%
Black Uniformity
6.7
4.5
Native Black Uniformity Picture
Native Std. Dev.
1.056%
2.994%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
4.309%
N/A
Vertical Viewing Angle
6.6
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
29°
Color Washout From Above
27°
Vertical Hue Graph
Color Shift From Below
31°
Color Shift From Above
36°
Vertical Lightness Graph
Brightness Loss From Below
32°
Brightness Loss From Above
32°
Black Level Raise From Below
61°
Black Level Raise From Above
70°
Gamma Shift From Below
30°
Gamma Shift From Above
30°
Color Accuracy (Pre-Calibration)
9.1
9.3
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Color Space (sRGB)
Color Space (sRGB)
sRGB Gamut Area xy
100.7%
100.0%
White Balance dE (Avg.)
2.20
1.81
Color Temperature (Avg.)
6,650 K
6,782 K
Gamma (Avg.)
2.15
2.21
Color dE (Avg.)
1.39
0.95
Contrast Setting
75
75
RGB Settings
Default
Default
Gamma Setting
No Gamma Setting
No Gamma Setting
Brightness Setting
75
75
Measured Brightness
211 cd/m²
192 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.8
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom Color
Custom Color
sRGB Gamut Area xy
99.9%
99.9%
White Balance dE (Avg.)
0.61
0.58
Color Temperature (Avg.)
6,524 K
6,472 K
Gamma (Avg.)
2.18
2.18
Color dE (Avg.)
0.35
0.44
Contrast Setting
75
75
RGB Settings
Gain (99,96,98), Offset (50,49,50)
Gain (100,100,95), Offset (51,49,49)
Gamma Setting
No Gamma Setting
No Gamma Setting
Brightness Setting
37
32
Measured Brightness
101 cd/m²
100 cd/m²
SDR Color Gamut
9.9
9.6
sRGB Color Gamut Picture
sRGB Coverage xy
99.8%
99.7%
sRGB Picture Mode
Custom Color
Custom Color
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
95.6%
89.5%
Adobe RGB Picture Mode
Custom Color
Custom Color
HDR Color Gamut
9.1
0.0
Wide Color Gamut
Yes
N/A
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
96.3%
N/A
DCI-P3 Picture Mode
DisplayHDR 600
No HDR
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
77.8%
N/A
Rec. 2020 Picture Mode
DisplayHDR 600
No HDR
HDR Color Volume
8.2
0.0
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
68.1%
N/A
DCI-P3 Picture Mode
DisplayHDR 600
No HDR
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
38.1%
N/A
Rec. 2020 Picture Mode
DisplayHDR 600
No HDR
Viewing Angle
7.6
7.6
Viewing Angle Video
Chroma Graph
Color Washout From Left
36°
33°
Color Washout From Right
33°
33°
Hue Graph
Color Shift From Left
45°
44°
Color Shift From Right
47°
46°
Lightness Graph
Brightness Loss From Left
42°
39°
Brightness Loss From Right
39°
39°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
45°
49°
Gamma Shift From Right
43°
47°
Text Clarity
9.0
7.5
ClearType On
ClearType Off
Pixel Type
IPS
IPS
Pixels
Subpixel Layout
RGB
RGB
Direct Reflections
6.6
Ring Light Picture
Direct Reflections Graph
Peak Direct Reflection Intensity
29.6%
Screen Finish
Matte
Matte
Reflections
7.0
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
6.5%
Indirect Reflections
4.1%
Calculated Direct Reflections
2.4%
Ambient Black Level Raise
8.8
Black Level Raise Picture
Ambient Black Level Raise Graph
Black Luminance @ 0 lx
0.11 cd/m²
Black Luminance @ 1000 lx
0.51 cd/m²
Total Reflected Light
0.5
Bright Room Off Picture
Total Reflection Ring Light Picture
Total Reflected Light Intensity
82,703% ⋅ pixel
Diffraction Artifacts
No
Gradient
9.8
9.8
Gradient Picture
Color Depth
10 Bit
10 Bit
Motion
Refresh Rate
7.1
7.1
Native Refresh Rate
120 Hz
120 Hz
Max Refresh Rate
120 Hz
120 Hz
Max Refresh Rate Over DP
120 Hz
120 Hz
Max Refresh Rate Over HDMI
120 Hz
100 Hz
Max Refresh Rate Over DP @ 10-bit
120 Hz
120 Hz
Max Refresh Rate Over HDMI @ 10-Bit
120 Hz
60 Hz
DSC Toggle
DSC Off Max Refresh Rate Over DP
N/A
DSC Off Max Refresh Rate Over HDMI
N/A
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Compatible (Tested)
Compatible (Tested)
G-SYNC
Compatible (Tested)
Compatible (Tested)
VRR Maximum
120 Hz
120 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
DisplayPort, HDMI
VRR Motion Performance
5.2
4.4
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
Normal
Normal
Variable Overdrive Advertised
No
No
Avg. CAD
371
439
Best CAD
342
425
Worst CAD
430
461
Refresh Rate Compliance
0.8
0.9
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
29%
22%
Compliance @ 120 FPS
29%
22%
Compliance @ 60 FPS
49%
51%
CAD @ Max Refresh Rate
4.9
4.4
Pursuit Photo At Max Refresh
CAD Heatmap At Max Refresh
OD Transition Max Refresh Rate
OD fast
0 to 31
OD fast
0 to 31
Recommended Overdrive Setting
Normal
Fast
Avg. CAD
358
363
Best 10% CAD
218
185
Worst 10% CAD
595
758
Response Time @ Max Refresh Rate
First Response Time
16.3 ms
11.2 ms
Total Response Time
16.3 ms
18.0 ms
Recommended Overdrive Setting
Normal
Fast
RGB Overshoot
0 RGB
8 RGB
Worst 10% RGB Overshoot
0 RGB
29 RGB
Worst 10% First Response Time
26.8 ms
31.1 ms
Worst 10% Total Response Time
26.8 ms
31.3 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
CAD @ 120Hz
4.9
4.4
Pursuit Photo 120Hz
CAD Heatmap 120Hz
OD Transition 120Hz
OD fast
0 to 31
OD fast
0 to 31
Recommended Overdrive Setting
Normal
Fast
Avg. CAD
358
363
Best 10% CAD
218
185
Worst 10% CAD
595
758
Response Time @ 120Hz
Worst 10% First Response Time
26.8 ms
31.1 ms
RGB Overshoot
0 RGB
8 RGB
Total Response Time
16.3 ms
18.0 ms
First Response Time
16.3 ms
11.2 ms
Recommended Overdrive Setting
Normal
Fast
Worst 10% Total Response Time
26.8 ms
31.3 ms
Worst 10% RGB Overshoot
0 RGB
29 RGB
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
CAD @ 60Hz
4.6
4.0
Pursuit Photo 60Hz
CAD Heatmap 60Hz
OD Transition 60Hz
OD fast
0 to 31
OD fast
0 to 31
Recommended Overdrive Setting
Normal VRR Off
Normal
Avg. CAD
397
415
Best 10% CAD
248
263
Worst 10% CAD
578
712
Response Time @ 60Hz
Recommended Overdrive Setting
Normal VRR Off
Normal
First Response Time
11.9 ms
13.7 ms
Total Response Time
19.5 ms
17.4 ms
RGB Overshoot
6 RGB
3 RGB
Worst 10% Total Response Time
29.1 ms
29.5 ms
Worst 10% First Response Time
19.1 ms
26.8 ms
Worst 10% RGB Overshoot
16 RGB
12 RGB
60Hz First Response Heatmap
60Hz Total Response Heatmap
60Hz RGB Overshoot Heatmap
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
No BFI
No BFI
Maximum Frequency
N/A
N/A
Minimum Frequency
N/A
N/A
Longest Pulse Width Brightness
N/A
N/A
Shortest Pulse Width Brightness
N/A
N/A
Pulse Width Control
No BFI
No BFI
Pulse Phase Control
No BFI
No BFI
Pulse Amplitude Control
No BFI
No BFI
VRR At The Same Time
No BFI
No BFI
VRR Flicker
9.2
8.2
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
0.4 RGB
1.6 RGB
Middle Gray Flicker
1.1 RGB
0.6 RGB
Light Gray Flicker
1.6 RGB
0.7 RGB
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
8.8
8.8
Native Resolution @ Max Hz
4.7 ms
4.7 ms
Native Resolution @ 120Hz
4.7 ms
4.7 ms
Native Resolution @ 60Hz
8.8 ms
8.9 ms
Backlight Strobing (BFI)
N/A
N/A
Resolution
8.6
7.7
Native Resolution
5120 x 2160
3440 x 1440
Aspect Ratio
21:9
21:9
Megapixels
11.1 MP
5.0 MP
Pixel Density
140 PPI
109 PPI
PS5 Compatibility
4.5
1.5
PS5 Compatibility Photo
PS5 Compatibility Table
4k @ 120Hz
No
No
4k @ 60Hz
Yes
No
1440p @ 120Hz
No
No
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
No
No
1080p @ 60Hz
Yes
Yes
Xbox Series X|S Compatibility
4.5
3.0
XSX Compatibility Photo
XSX Compatibility Table
4k @ 120Hz
No
No
4k @ 60Hz
Yes
No
1440p @ 120Hz
No
No
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
No
Yes
1080p @ 60Hz
Yes
Yes
Inputs Photos
Inputs 1
Inputs 2
Inputs
Inputs 1
Inputs 2
DisplayPort
1 (DP 1.4)
1 (DP 1.4)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
No DisplayPort 2.1
Mini DisplayPort
No
No
DVI
No
HDMI
1 (HDMI 2.1)
1 (HDMI 2.0)
VGA
No
HDMI 2.1 Bandwidth
48Gbps (FRL 12x4)
No HDMI 2.1
Daisy Chaining
Thunderbolt
Thunderbolt
3.5mm Audio Out
Yes
1
3.5mm Audio In
No
3.5mm Microphone In
No
Ethernet
Yes
HDR10
Yes
No
Dolby Vision
No
USB
USB-A Ports
5
5
USB-A Rated Speed
10Gbps (USB 3.2 Gen 2)
10Gbps (USB 3.2 Gen 2)
USB-B Upstream Port
No
No
USB-C Ports
5
5
USB-C Upstream
Yes
Yes
USB-C Rated Speed
10Gbps (USB 3.2 Gen 2)
10Gbps (USB 3.2 Gen 2)
USB-C Power Delivery
140W
90W
USB-C DisplayPort Alt Mode
Yes
Yes
Thunderbolt
Thunderbolt 4
Thunderbolt 4
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
Yes
HDR10
Yes
No
RGB Illumination
No
No
Multiple Input Display
PIP + PBP
PIP + PBP
KVM Switch
Yes
Yes
Smart OS
No
On-Screen Display (OSD)
OSD Picture
Check Price
40"
U4025QW
SEE PRICE
Amazon.com
34"
U3425WE
SEE PRICE
Amazon.com
40"
U4025QW
SEE PRICE
Walmart.com
34"
U3425WE
SEE PRICE
Walmart.com
40"
U4025QW
SEE PRICE
B&H
34"
U3425WE
SEE PRICE
B&H
40"
U4025QW
SEE PRICE
BestBuy.com
34"
U3425WE
SEE PRICE
BestBuy.com
Dell U4025QW
Dell U3425WE
Comments
Dell U4025QW vs Dell U3425WE: Main Discussion
What do you think of these products? Let us know below.
Looking for a personalized buying advice from the RTINGS.com experts? Insiders have direct access to buying advice on our insider forum.