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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
Dell UltraSharp U4021QW vs LG 40WP95C-W
Side-by-Side Comparison
Products
Dell UltraSharp U4021QW
LG 40WP95C-W
Tested using Methodology v1.1
Updated May 03, 2024 05:02 PM
SEE PRICE
Amazon.comTested using Methodology v2.0.1
Updated Feb 19, 2025 04:46 PM
SEE PRICE
Amazon.com
Max Refresh Rate60 Hz
Size40"
Pixel TypeIPS
Native Resolution5120 x 2160
Variable Refresh RateNo VRR
Max Refresh Rate72 Hz
Size40"
Pixel TypeIPS
Native Resolution5120 x 2160
Variable Refresh RateYes
Variants
- UltraSharp U4021QW (40")
- 40WP95C-W (40")
Our Verdict
Dell UltraSharp U4021QW
LG 40WP95C-W
The LG 40WP95C-W is better than the Dell UltraSharp U4021QW. Both models target media creators, but the LG supports HDR, with amazing coverage of the DCI-P3 color space, and the Dell doesn't support HDR at all. The LG also has slightly better connectivity, with higher bandwidth Thunderbolt 4 ports.
Check Price
40"
UltraSharp U4021QW
SEE PRICE
Amazon.com40"
40WP95C-W
SEE PRICE
Amazon.comNotice: Two or more of the products selected have been tested with different test methodologies, so some of the results below aren't directly comparable. Learn how our test benches and scoring system work, and read more about the latest changes to our monitors test methodology.
Main Differences for
Threshold
Mixed Usage
7.5
Full Comparison
Design
Style
Design Picture
Curved
Yes
Yes
Curve Radius
2500R
2500R
Size
40"
40"
Weight (without stand)
20.9 lbs (9.5 kg)
22.6 lbs (10.2 kg)
Weight (with stand)
30.4 lbs (13.8 kg)
27.4 lbs (12.4 kg)
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.0
8.0
Build Quality Picture
Ergonomics
6.4
7.0
Ergonomics Picture
Back Picture
Height Adjustment
4.7" (12.0 cm)
4.5" (11.5 cm)
Min Height To Top Of Panel
19.3" (48.9 cm)
Tilt Range
-20° to 5°
-20° to 5°
Rotate Portrait/Landscape
No
No
Swivel Range
-35° to 35°
-15° to 15°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
15.2" (38.5 cm)
22.4" (57.0 cm)
Base Depth
9.7" (24.7 cm)
11.2" (28.5 cm)
Thickness (With Display)
8.3" (21.1 cm)
9.5" (24.2 cm)
Weight (With Display)
30.4 lbs (13.8 kg)
27.4 lbs (12.4 kg)
Display
Display Picture
Size
40"
40"
Housing Width
37.3" (94.8 cm)
Housing Height
16.5" (42.0 cm)
Thickness (Without Stand)
4.0" (10.1 cm)
5.6" (14.3 cm)
Weight (Without Stand)
20.9 lbs (9.5 kg)
22.6 lbs (10.2 kg)
Borders Size (Bezels)
0.4" (1.1 cm)
0.5" (1.2 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
Internal
Internal
Back
Back Picture
Wall Mount
VESA 100x100
VESA 100x100
Borders
Borders Picture
Borders
0.4" (1.1 cm)
0.5" (1.2 cm)
Thickness
Thickness Picture
Thickness (with stand)
8.3" (21.1 cm)
9.5" (24.2 cm)
Thickness (without stand)
4.0" (10.1 cm)
5.6" (14.3 cm)
Picture Quality
Contrast
5.9
6.1
Checkerboard Picture
Native Contrast
943 : 1
1,087 : 1
Contrast With Local Dimming
N/A
N/A
Local Dimming
0.0
0.0
Local Dimming Video
Local Dimming
No
No
Backlight
Edge
Edge
SDR Brightness
7.1
7.0
Real Scene
256 cd/m²
254 cd/m²
Peak 2% Window
279 cd/m²
270 cd/m²
Peak 10% Window
279 cd/m²
277 cd/m²
Peak 25% Window
280 cd/m²
278 cd/m²
Peak 50% Window
280 cd/m²
279 cd/m²
Peak 100% Window
280 cd/m²
280 cd/m²
Sustained 2% Window
278 cd/m²
269 cd/m²
Sustained 10% Window
279 cd/m²
276 cd/m²
Sustained 25% Window
279 cd/m²
278 cd/m²
Sustained 50% Window
279 cd/m²
279 cd/m²
Sustained 100% Window
280 cd/m²
280 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.002
Minimum Brightness
42 cd/m²
HDR Brightness
0.0
6.0
EOTF
VESA DisplayHDR Certification
No Certification
Real Scene
N/A
283 cd/m²
Peak 2% Window
N/A
315 cd/m²
Peak 10% Window
N/A
321 cd/m²
Peak 25% Window
N/A
322 cd/m²
Peak 50% Window
N/A
322 cd/m²
Peak 100% Window
N/A
322 cd/m²
Sustained 2% Window
N/A
315 cd/m²
Sustained 10% Window
N/A
321 cd/m²
Sustained 25% Window
N/A
321 cd/m²
Sustained 50% Window
N/A
322 cd/m²
Sustained 100% Window
N/A
322 cd/m²
Automatic Brightness Limiting (ABL)
N/A
0.001
Horizontal Viewing Angle
8.0
7.3
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
43°
43°
Color Washout From Right
45°
42°
Horizontal Hue Graph
Color Shift From Left
49°
48°
Color Shift From Right
51°
54°
Horizontal Lightness Graph
Brightness Loss From Left
49°
49°
Brightness Loss From Right
51°
49°
Black Level Raise From Left
70°
38°
Black Level Raise From Right
70°
24°
Gamma Shift From Left
40°
41°
Gamma Shift From Right
41°
37°
Vertical Viewing Angle
7.1
7.0
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
33°
32°
Color Washout From Above
30°
30°
Vertical Hue Graph
Color Shift From Below
38°
33°
Color Shift From Above
33°
38°
Vertical Lightness Graph
Brightness Loss From Below
36°
33°
Brightness Loss From Above
32°
33°
Black Level Raise From Below
70°
70°
Black Level Raise From Above
70°
70°
Gamma Shift From Below
43°
38°
Gamma Shift From Above
36°
36°
Gray Uniformity
8.5
7.7
50% Uniformity Picture
50% Std. Dev.
2.994%
3.361%
50% DSE
0.122%
0.157%
5% Uniformity Picture
5% Std. Dev.
0.398%
5% DSE
0.032%
Black Uniformity
6.8
7.0
Native Black Uniformity Picture
Native Std. Dev.
1.434%
1.334%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
9.1
8.5
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Color Space (sRGB)
sRGB
sRGB Gamut Area xy
103.2%
White Balance dE (Avg.)
1.50
3.03
Color Temperature (Avg.)
6,281 K
6,193 K
Gamma (Avg.)
2.16
2.30
Color dE (Avg.)
0.99
1.99
Contrast Setting
75
70
RGB Settings
Default
50-50-50
Gamma Setting
No Gamma Setting
Locked
Brightness Setting
75
40
Measured Brightness
210 cd/m²
124 cd/m²
Brightness Locked
No
Color Accuracy (Post-Calibration)
9.7
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom Color
Custom
sRGB Gamut Area xy
99.4%
White Balance dE (Avg.)
0.65
0.55
Color Temperature (Avg.)
6,456 K
6,482 K
Gamma (Avg.)
2.18
2.18
Color dE (Avg.)
0.31
0.48
Contrast Setting
75
70
RGB Settings
98-97-100
50-50-48
Gamma Setting
No Gamma Setting
Mode 2
Brightness Setting
28
30
Measured Brightness
100 cd/m²
99 cd/m²
ICC Profile
SDR Color Gamut
9.4
9.6
sRGB Color Gamut Picture
sRGB Coverage xy
100.0%
99.5%
sRGB Picture Mode
Custom Color
Custom
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
88.5%
90.6%
Adobe RGB Picture Mode
Custom Color
Custom
HDR Color Gamut
0.0
8.7
Wide Color Gamut
N/A
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
94.4%
DCI-P3 Picture Mode
No HDR
Custom
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
N/A
70.4%
Rec. 2020 Picture Mode
No HDR
Custom
DCI P3 xy
N/A
HDR Color Volume
0.0
7.1
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
N/A
59.0%
DCI-P3 Picture Mode
No HDR
Custom
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
N/A
27.4%
Rec. 2020 Picture Mode
No HDR
Custom
Text Clarity
9.5
9.0
ClearType On
ClearType Off
Pixel Type
IPS
IPS
Pixels
Subpixel Layout
RGB
RGB
Reflections
6.7
7.1
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
6.6%
6.1%
Indirect Reflections
3.2%
3.8%
Calculated Direct Reflections
3.4%
2.4%
Gradient
9.8
9.6
Gradient Picture
Color Depth
10 Bit
10 Bit
SDR Color Volume
9.6
sRGB Color Volume ITP Picture
sRGB In ICtCp
98.2%
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
93.2%
sRGB Picture Mode
Custom Color
Adobe RGB Picture Mode
Custom Color
Image Retention
10
Image Retention Picture
IR After 0 Min Recovery
0.00%
IR After 2 Min Recovery
0.00%
IR After 4 Min Recovery
0.00%
IR After 6 Min Recovery
0.00%
IR After 8 Min Recovery
0.00%
IR After 10 Min Recovery
0.00%
Color Bleed
10
Color Bleed Horizontal
Pixel Row Error
0.001%
Color Bleed Vertical
Pixel Column Error
0.001%
Motion
Refresh Rate
6.3
Native Refresh Rate
60 Hz
72 Hz
Max Refresh Rate
60 Hz
72 Hz
Max Refresh Rate Over DP
72 Hz
Max Refresh Rate Over HDMI
30 Hz
Max Refresh Rate Over DP @ 10-bit
72 Hz
Max Refresh Rate Over HDMI @ 10-Bit
30 Hz
Variable Refresh Rate (VRR)
Variable Refresh Rate
No VRR
Yes
FreeSync
No
Yes
G-SYNC
No
Compatible (Tested)
VRR Maximum
N/A
72 Hz
VRR Minimum
No VRR
48 Hz
VRR Supported Connectors
No VRR
DisplayPort, HDMI
Native
60 Hz
72 Hz
Max Refresh Rate
60 Hz
72 Hz
Variable Refresh Rate
No
VRR Motion Performance
5.8
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
Fast
Variable Overdrive Advertised
No
Avg. CAD
336
Best CAD
334
Worst CAD
338
Refresh Rate Compliance
4.0
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
55%
Compliance @ 120 FPS
N/A
Compliance @ 60 FPS
61%
CAD @ Max Refresh Rate
5.2
Pursuit Photo At Max Refresh
CAD Heatmap At Max Refresh
OD Transition Max Refresh Rate
OD fast
0 to 31
Recommended Overdrive Setting
Fast
Avg. CAD
334
Best 10% CAD
161
Worst 10% CAD
566
Response Time @ Max Refresh Rate
First Response Time
6.5 ms
12.4 ms
Total Response Time
18.7 ms
13.5 ms
Recommended Overdrive Setting
Normal
Fast
RGB Overshoot
7.5%
1 RGB
Worst 10% RGB Overshoot
12.5%
9 RGB
Worst 10% First Response Time
6.6 ms
24.3 ms
Worst 10% Total Response Time
20.3 ms
24.8 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
Motion Blur Picture
Response Time Table
CAD @ 120Hz
0.0
Pursuit Photo 120Hz
CAD Heatmap 120Hz
OD Transition 120Hz
Recommended Overdrive Setting
No 120Hz Refresh Rate
Avg. CAD
N/A
Best 10% CAD
N/A
Worst 10% CAD
N/A
Response Time @ 120Hz
Worst 10% First Response Time
N/A
RGB Overshoot
N/A
Total Response Time
N/A
First Response Time
N/A
Recommended Overdrive Setting
No 120Hz Refresh Rate
Worst 10% Total Response Time
N/A
Worst 10% RGB Overshoot
N/A
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
CAD @ 60Hz
5.1
Pursuit Photo 60Hz
CAD Heatmap 60Hz
OD Transition 60Hz
OD fast
0 to 31
Recommended Overdrive Setting
Fast
Avg. CAD
341
Best 10% CAD
171
Worst 10% CAD
561
Response Time @ 60Hz
Recommended Overdrive Setting
Normal
Fast
First Response Time
6.5 ms
11.9 ms
Total Response Time
18.7 ms
15.5 ms
RGB Overshoot
7.5%
3 RGB
Worst 10% Total Response Time
20.3 ms
25.5 ms
Worst 10% First Response Time
6.6 ms
21.0 ms
Worst 10% RGB Overshoot
12.5%
14 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
Shortest Pulse Width Brightness
N/A
Pulse Width Control
No BFI
Pulse Phase Control
No BFI
Pulse Amplitude Control
No BFI
VRR At The Same Time
No BFI
VRR Flicker
9.3
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
0.6 RGB
Middle Gray Flicker
0.4 RGB
Light Gray Flicker
0.5 RGB
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Response Time @ 60Hz
7.2
Motion Blur Picture
Response Time Table
Best Overdrive Setting
Normal
Fast
Rise / Fall Time
6.5 ms
11.9 ms
Total Response Time
18.7 ms
15.5 ms
Overshoot Error
7.5%
3 RGB
Dark Rise / Fall Time
6.6 ms
21.0 ms
Dark Total Response Time
20.3 ms
25.5 ms
Dark Overshoot Error
12.5%
14 RGB
Inputs
Input Lag
9.0
8.4
Native Resolution @ Max Hz
8.9 ms
7.4 ms
Native Resolution @ 120Hz
N/A
Native Resolution @ 60Hz
8.9 ms
9.3 ms
Variable Refresh Rate
N/A
Variable Refresh Rate @ 60Hz
N/A
10 Bit HDR
N/A
Backlight Strobing (BFI)
N/A
N/A
Resolution
9.4
8.6
Native Resolution
5120 x 2160
5120 x 2160
Aspect Ratio
21:9
21:9
Megapixels
11.1 MP
11.1 MP
Pixel Density
137 PPI
140 PPI
Screen Diagonal
40.0"
Screen Area
581 in²
PS5 Compatibility
2.3
PS5 Compatibility Photo
PS5 Compatibility Table
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
No
1440p @ 60Hz
No
1080p @ 120Hz
No
1080p @ 60Hz
Yes
Xbox Series X|S Compatibility
4.2
XSX Compatibility Photo
XSX Compatibility Table
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
No
1440p @ 60Hz
Yes
1080p @ 120Hz
No
1080p @ 60Hz
Yes
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.4)
1 (DP 1.4)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
2 (HDMI 2.0)
HDMI 2.1 Bandwidth
No HDMI 2.1
DVI
No
No
VGA
No
No
Daisy Chaining
Thunderbolt
3.5mm Audio Out
1
1
HDR10
No
Yes
3.5mm Audio In
No
3.5mm Microphone In
No
No
DisplayPort Out
No
USB
4 (USB 3.0)
2
USB C
2 (1x Thunderbolt 3, PD, DP Alt Mode, 1x USB 3.2 Gen 2)
2
Digital Optical Audio Out
No
Analog Audio Out RCA
No
Power Supply
Internal
Internal
USB
USB-A Ports
4 (USB 3.0)
2
USB-A Rated Speed
5Gbps (USB 3.2 Gen 1)
USB-B Upstream Port
No
USB-C Ports
2 (1x Thunderbolt 3, PD, DP Alt Mode, 1x USB 3.2 Gen 2)
2
USB-C Upstream
Yes
USB-C Rated Speed
40Gbps (USB4)
USB-C Power Delivery
96W
USB-C DisplayPort Alt Mode
Yes
Thunderbolt
Thunderbolt 4
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
Yes
RGB Illumination
No
No
Multiple Input Display
PIP + PBP
PBP
KVM Switch
No
HDR10
No
Yes
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
Check Price
40"
UltraSharp U4021QW
SEE PRICE
Amazon.com40"
40WP95C-W
SEE PRICE
Amazon.com
Dell UltraSharp U4021QW
LG 40WP95C-W
Comments
Dell UltraSharp U4021QW vs LG 40WP95C-W: Main Discussion
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