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Dell U3223QE Monitor Review

Tested using Methodology v1.2
Reviewed May 24, 2022 at 10:08 am
Latest change: Retest Apr 18, 2023 at 10:47 am
Dell U3223QE Picture
7.7
Mixed Usage
8.4
Office
6.7
Gaming
8.0
Media Consumption
8.7
Media Creation
6.9
HDR

The Dell U3223QE is a 32 inch 4k office monitor. Part of Dell's UltraSharp lineup, it sits alongside the Dell U2723Q and has a lot of features and connectivity options. It uses the new IPS Black panel technology that delivers a higher contrast compared to traditional IPS panels for deeper blacks. It has a USB hub with five USB-A ports and three USB-C ports, which you can use to connect your peripherals like a keyboard and mouse and control multiple sources with them, thanks to the KVM switch. It also has DisplayPort Alt Mode that allows you to display an image from a compatible device and charge it at the same time with 90W of power delivery. If you work with multiple monitors and want to keep your setup clean with minimal wires, it supports daisy-chaining via USB-C or DisplayPort. Lastly, it includes an Ethernet port that you can use to connect to the internet if your laptop doesn't have one.

Our Verdict

7.7 Mixed Usage

The Dell U3223QE is good for most uses. It's an impressive office monitor because it displays sharp text and provides enough screen space to open multiple windows side by side. It also has a big USB hub that makes it easy to connect multiple devices and be productive. It's excellent for content creators as it has fantastic out-of-the-box accuracy and incredible ergonomics if you need to share your screen with a coworker. It's great for media consumption, but blacks look gray in the dark. Sadly, it's just okay for gaming because it doesn't have variable refresh rate (VRR) support. It's not special for watching HDR either because colors don't look vivid, and highlights don't pop.

Pros
  • High 4k resolution and large 32 inch screen.
  • USB hub with a lot of features.
  • Great SDR peak brightness.
  • Fantastic ergonomics.
Cons
  • Disappointing reflection handling.
  • Slow response time.
8.4 Office

The Dell U3223QE is an impressive office monitor. The 32 inch screen and 4k resolution are great for multitasking as you can open multiple windows side-by-side, and the text clarity is fantastic. It also has wide viewing angles and incredible ergonomics that make it easy to share your screen with someone else. It has a USB hub with a ton of inputs, including a DisplayPort output if you need to connect a secondary monitor.

Pros
  • High 4k resolution and large 32 inch screen.
  • USB hub with a lot of features.
  • Great SDR peak brightness.
  • Fantastic ergonomics.
Cons
  • Disappointing reflection handling.
6.7 Gaming

The Dell U3223QE is okay for gaming. The 4k resolution delivers crisp images, and the 32 inch screen is big enough for an immersive gaming experience. It also has a decent contrast ratio if you game in the dark, but it's not enough to deliver deep blacks. Sadly, it doesn't have any extra gaming features like VRR support or HDMI 2.1 bandwidth, and it has a slow response time that results in motion blur.

Pros
  • Low input lag for casual gaming.
Cons
  • No VRR support or HDMI 2.1 bandwidth.
  • Blacks look gray in the dark.
  • Slow response time.
8.0 Media Consumption

The Dell U3223QE is great for viewing multimedia content. The 4k resolution allows you to stream the latest 4k videos, and it has a 32 inch screen with wide viewing angles if you want to share the screen with someone else. It has incredible ergonomics that make it easy to place the screen in an ideal position. Sadly, it isn't the best for watching content in dark rooms because blacks look gray in the dark, and the local dimming performs terribly.

Pros
  • High 4k resolution and large 32 inch screen.
  • Fantastic ergonomics.
Cons
  • Blacks look gray in the dark.
  • Terrible HDR local dimming feature.
8.7 Media Creation

The Dell U3223QE is excellent for content creators. The high resolution offers fantastic text clarity and sharp images, and the screen is big enough to view a lot of your work at once. It also has fantastic out-of-the-box accuracy with a wide SDR color gamut, meaning it displays a wide range of colors as intended. It has incredible ergonomics if you want to adjust the screen to show your work to someone else, and the wide viewing angles mean that they'll see an accurate image from the sides.

Pros
  • High 4k resolution and large 32 inch screen.
  • USB hub with a lot of features.
  • Fantastic ergonomics.
  • Fantastic color accuracy.
Cons
  • Disappointing reflection handling.
6.9 HDR

The Dell U3223QE is just okay for watching HDR content. Although it has a decent contrast ratio and decent black uniformity, blacks still look gray in the dark, and the local dimming is terrible. It displays a wide range of colors in HDR, but it undersaturates them, and combined with the low HDR peak brightness, colors aren't vivid and don't pop as they should in HDR.

Pros
  • High 4k resolution and large 32 inch screen.
Cons
  • Blacks look gray in the dark.
  • Terrible HDR local dimming feature.
  • Under-saturates colors in HDR.
  • Not bright enough to make colors vivid.
  • 7.7 Mixed Usage
  • 8.4 Office
  • 6.7 Gaming
  • 8.0 Media Consumption
  • 8.7 Media Creation
  • 6.9 HDR
  1. Updated Apr 18, 2023: Confirmed that 1440p @ 60Hz works on this monitor with the PS5.
  2. Updated Mar 07, 2023: Retested the performance in HDR and updated the results in HDR Brightness, HDR Color Gamut, and HDR Color Volume. The biggest difference was with the Color Volume.
  3. Updated May 24, 2022: Expanded on new features, including the IPS Black technology, in the intro.
  4. Updated May 24, 2022: Review published.
  5. Updated May 18, 2022: Early access published.
  6. Updated May 05, 2022: Our testers have started testing this product.
  7. Updated May 03, 2022: The product has arrived in our lab, and our testers will start evaluating it soon.
  8. Updated Apr 12, 2022: We've purchased the product and are waiting for it to arrive in our lab.

Differences Between Sizes And Variants

We tested the 32 inch Dell U3223QE, which is part of the UltraSharp Series lineup that includes the Dell U2723QE. Our test results are only valid for the 32 inch variant. You can see the difference between the monitors below.

Model Size Resolution Aspect Ratio
U2723QE 27" 3840x2160 16:9
U3023E 30" 2560x1600 16:10
U3223QE 32" 3840x2160 16:9

If you come across a U3223QE with a different panel type, or if it doesn't correspond to our review, let us know in the discussions, and we'll update our review. Note that some tests, like gray uniformity, may vary between individual units.

Our unit of the Dell UltraSharp U3223QE was manufactured in February 2022; you can see the label here.

Compared To Other Monitors

The Dell U3223QE is an impressive office monitor that has a ton of features to help your workflow, like its daisy-chaining, KVM switch, and USB-C inputs. The 32 inch screen and 4k resolution are great for multitasking, and the incredible ergonomics make it easy to place in an ideal position. However, it's an expensive monitor, and if you aren't going to take advantage of all the extra features, go for something cheaper like the Dell S2722QC that still has a USB-C input and excellent ergonomics.

See our recommendations for the best 4k monitors, the best office monitors, and the best computer monitors.

Dell G3223Q

The Dell U3223QE and the Dell G3223Q are different types of 4k, 32  inch monitors. The G3223Q is a gaming monitor with a much higher refresh rate, VRR support, and quick response times, while the U3223QE is an office monitor with much better ergonomics and a bigger selection of inputs. Besides the different features, they have similar picture quality, but the G3223Q has much better reflection handling.

Dell U2723QE

The Dell U2723QE is essentially a smaller version of the Dell U3223QE, but there are a few differences. The U2723QE has a wider swivel range, making it easier to share your screen with someone. The U2723QE also looks better in HDR as it doesn't undersaturate colors like the U3223QE. Both have disappointing reflection handling, but reflections on the U3223QE result in a pink tint that the U2723QE doesn't have. Also, the U3223QE has better out-of-the-box accuracy because the white balance is better.

LG 32UL950-W

The Dell U3223QE and the LG 32UL950-W are both 32-inch, 4k monitors with a few differences. The Dell has many more features, as it has a much larger USB hub, making it easier to connect multiple devices. They each have USB-C ports, and the Dell supports higher power delivery, but the LG supports Thunderbolt 3, which allows for higher bandwidth than the DisplayPort Alt Mode than the Dell. Besides that, the Dell is more versatile because it has much better ergonomics, and it's also better for photo editing because it has more accurate colors.

Dell U3219Q

The Dell U3223QE is a newer version of the Dell U3219Q with similar overall performance. There isn't too much difference in terms of picture quality, except the U3223QE displays a wider range of colors in HDR and has better out-of-the-box accuracy. The U3223QE also has an extra USB port compared to the U3219Q, and it has a KVM switch that allows you to control two devices with the same keyboard and mouse.

Apple Studio Display

The Dell U3223QE and the Apple Studio Display are both high-end monitors meant for different uses. The Apple monitor is geared towards people who own a Mac, as it has features you can only use with macOS, like its accurate sRGB mode. It has other features that the Dell doesn't have, like a higher 5k resolution, a webcam, and a microphone. The Apple monitor also gets brighter and has much better reflection handling, which is ideal if you need to use it in a bright room. However, the Dell is more versatile if you don't work with just a Mac computer, as it has a larger USB hub, including a KVM switch, and it has a much more ergonomic stand. The Dell also supports HDR, unlike the Apple, but it under-saturates colors in HDR anyway.

ASUS ProArt Display PA279CRV

The Dell U3223QE and the ASUS ProArt Display PA279CRV are both 4k monitors aimed at content creators, with the Dell having a bigger screen. They have many of the same features and similar performance, but they have a few differences. The Dell uses a panel with IPS Black technology, resulting in a higher contrast than the ASUS, making it the better choice to edit content in a dark environment. The ASUS is better for well-lit rooms because it has much better reflection handling. The ASUS is also better for editing content in HDR as it has better color volume, as colors are undersaturated on the Dell. However, the Dell has extra features, like a bigger USB hub and a KVM switch, making it easy to multitask.

Dell P3223DE

The Dell P3223DE and the Dell U3223QE are different types of 32 inch office monitors. The U3223QE has a much higher 4k resolution that delivers sharper text. While both have similar USB hubs, the U3223QE has two more USB-C ports and a KVM switch, allowing you to connect a keyboard and mouse and control two devices with them. The U3223QE also supports HDR, which the P3223DE doesn't, but the HDR experience isn't the best anyways. On the other hand, the P3223DE has much better reflection handling if you want to use it in a bright room.

Gigabyte M32U

The Dell U3223QE and the Gigabyte M32U are different types of 4k monitors. The Dell is focused on office use with a USB hub with more inputs than the Gigabyte, although the Gigabyte offers the same features, like DisplayPort Alt Mode and a KVM switch. The Dell also has much better ergonomics as you can rotate it into portrait mode. However, the Gigabyte is focused on gaming as it has a 144Hz refresh rate with HDMI 2.1 bandwidth and VRR support, allowing you to play games at high framerates from PCs and consoles without issue.

Dell S2722QC

The Dell S2722QC and the Dell U3223QE are both good overall 4k monitors with a few differences. The U3223QE has a better selection of inputs as it has a USB hub with a KVM switch, and it supports daisy chaining, allowing you to easily connect a second display. It also has better ergonomics as it allows for greater height adjustment. However, the S2722QC has much better reflection handling, and it's a bit more versatile for gaming because it has VRR support.

Samsung Smart Monitor M8 S32BM80

The Samsung Smart Monitor M8 S32BM80 and the Dell U3223QE are different types of 4k displays. The Samsung has a built-in smart interface meant to make it easy to stream your favorite content without a PC. It also performs better in dark rooms thanks to its higher contrast. However, the Dell is an office monitor with a bunch more inputs, including USB-A ports, making it easy to connect multiple devices and your mouse and keyboard. It also has much better out-of-the-box accuracy, and it displays a wider range of colors, making it a better choice for content creators.

+ Show more

Test Results

perceptual testing image
Design
Design
Style
Curved
No
Curve Radius
Not Curved

The Dell UltraSharp U3223QE has a simple design that looks nice in any office environment. It's mainly silver, except for the black bezels, and while there's nothing that stands out about it, it's a nice-looking monitor.

Design
Accelerated Longevity Test
Uniformity Pictures N/A
8.0
Design
Build Quality

The Dell UltraSharp U3223QE has great build quality. It feels well-built, and there aren't any glaring issues. The back panel flexes under pressure, and the screen wobbles if you shake the table, but this isn't a problem if you put it on a sturdy desk. The screen remains in position when you adjust the tilt, swivel, or height, and like the Dell P3223DE, it locks in place when you adjust it to the max height, which helps keep it stable but also makes it a bit harder to put back down.

9.3
Design
Ergonomics
Height Adjustment
5.9" (15.0 cm)
Tilt Range
-21° to 5°
Rotate Portrait/Landscape
Yes, Both Ways
Swivel Range
-30° to 30°
Wall Mount
VESA 100x100

The Dell U3223QE has fantastic ergonomics. You won't have any issues placing the screen in an ideal position. When you adjust the screen to its max height, it locks in place, meaning it's stable, but it's also hard to put back down. There's a cutout in the stand for cable management.

Design
Stand
Base Width
11.8" (30.0 cm)
Base Depth
9.1" (23.0 cm)
Thickness (With Display)
6.5" (16.5 cm)
Weight (With Display)
21.7 lbs (9.9 kg)

The stand doesn't take up much space, and because the base is flat, you can still put stuff on top of it. Unlike the Dell S3221QS, the base has a straight edge in front, meaning you can put your keyboard flush against it.

Design
Display
Size
32"
Housing Width
28.1" (71.3 cm)
Housing Height
16.2" (41.1 cm)
Thickness (Without Stand)
2.2" (5.6 cm)
Weight (Without Stand)
12.0 lbs (5.5 kg)
Borders Size (Bezels)
0.3" (0.8 cm)
Design
Controls

There's a single joystick to navigate the on-screen menu and a power button to turn the display on and off.

Design
In The Box
Power Supply
Internal

  • DisplayPort cable
  • USB-C to USB-A cable
  • USB-C to USB-C cable
  • Power cable
  • User guides and manuals

Picture Quality
7.2
Picture Quality
Contrast
Native Contrast
2,104 : 1
Contrast With Local Dimming
2,240 : 1

The Dell U3223QE has a decent contrast ratio. It uses a new IPS Black technology that improves the contrast compared to traditional IPS panels, so while it delivers deeper blacks, blacks still look gray in the dark. The local dimming doesn't improve the contrast much with the checkerboard pattern because it turns on all the dimming zones.

2.0
Picture Quality
Local Dimming
Local Dimming
Yes
Backlight
Edge

The Dell U3223QE has a local dimming that performs terribly. It only turns on in HDR; the video above is in the 'DisplayHDR 400' Smart HDR setting. It's edge-lit with eight vertical dimming zones, which are all on most of the time with real content, so it doesn't do much to improve the picture quality in dark scenes. It's slow at turning zones on and off to help reduce blooming and make it look less aggressive, but this also defeats the purpose of the local dimming as it reduces the contrast. Subtitles turn on six of the height zones, so it's not that useful. Luckily, the local dimming keeps details in dark scenes as there's no black crush.

8.1
Picture Quality
SDR Brightness
Real Scene
370 cd/m²
Peak 2% Window
397 cd/m²
Peak 10% Window
399 cd/m²
Peak 25% Window
400 cd/m²
Peak 50% Window
400 cd/m²
Peak 100% Window
400 cd/m²
Sustained 2% Window
396 cd/m²
Sustained 10% Window
398 cd/m²
Sustained 25% Window
399 cd/m²
Sustained 50% Window
399 cd/m²
Sustained 100% Window
400 cd/m²
Automatic Brightness Limiting (ABL)
0.000
Minimum Brightness
36 cd/m²

The Dell U3223QE has great SDR peak brightness. It gets bright enough to fight glare and maintains consistent brightness across different content. These results are from the 'Custom Color' Preset Mode after calibration with the Brightness at its max.

6.8
Picture Quality
HDR Brightness
VESA DisplayHDR Certification
DisplayHDR 400
Real Scene
404 cd/m²
Peak 2% Window
336 cd/m²
Peak 10% Window
438 cd/m²
Peak 25% Window
439 cd/m²
Peak 50% Window
445 cd/m²
Peak 100% Window
449 cd/m²
Sustained 2% Window
336 cd/m²
Sustained 10% Window
438 cd/m²
Sustained 25% Window
438 cd/m²
Sustained 50% Window
444 cd/m²
Sustained 100% Window
448 cd/m²
Automatic Brightness Limiting (ABL)
0.018

Update 03/07/2023: While this monitor didn't receive an official firmware update to fix some issues with HDR like with the Dell U2723QE, we still retested it to see if HDR performs differently. Although it uses the same firmware, M3T101, the HDR brightness is slightly lower than originally tested, and there's a smoother roll-off with the EOTF.

The Dell U3223QE has alright HDR peak brightness. It doesn't make small highlights pop at all and doesn't deliver a satisfying HDR experience. The EOTF doesn't follow the target PQ curve well either, as there's a slow roll-off until it reaches its peak brightness, but fortunately, that means it preserves details well in bright scenes. These results are from setting the Smart HDR mode to 'DisplayHDR 400'.

You can see an example here of what the U3223QE looks like in HDR compared to the Samsung QN90B QLED (left) and the LG G2 OLED (right). The monitor doesn't bring out highlights, and colors look under-saturated. The test content uses a Murideo 'The Seven Generator' device.

8.2
Picture Quality
Horizontal Viewing Angle
Color Washout From Left
45°
Color Washout From Right
42°
Color Shift From Left
55°
Color Shift From Right
58°
Brightness Loss From Left
45°
Brightness Loss From Right
44°
Black Level Raise From Left
70°
Black Level Raise From Right
70°
Gamma Shift From Left
51°
Gamma Shift From Right
49°

The Dell U3223QE has a great horizontal viewing angle. The image remains accurate from the sides, making it a good choice if you need to share the screen with someone next to you as everyone sees an accurate image.

7.0
Picture Quality
Vertical Viewing Angle
Color Washout From Below
32°
Color Washout From Above
29°
Color Shift From Below
38°
Color Shift From Above
44°
Brightness Loss From Below
35°
Brightness Loss From Above
33°
Black Level Raise From Below
70°
Black Level Raise From Above
70°
Gamma Shift From Below
33°
Gamma Shift From Above
32°

The vertical viewing angle is decent on the Dell U3223QE. Although it loses image accuracy quicker than viewing from the sides, it's still fine if you're standing up and looking down at the monitor.

8.0
Picture Quality
Gray Uniformity
50% Std. Dev.
3.282%
50% DSE
0.141%

The Dell UltraSharp U3223QE has great gray uniformity. There's only a bit of vignetting towards the corners and edges. The screen is otherwise uniform, meaning you won't have any issues displaying webpages or documents.

7.4
Picture Quality
Black Uniformity
Native Std. Dev.
0.928%
Std. Dev. w/ L.D.
1.975%

The Dell U3223QE has decent black uniformity. It displays deeper blacks than most IPS panels thanks to its IPS Black technology, but blacks still look gray, and there's some backlight bleed. The local dimming helps improve the contrast with the test pattern, but it also causes more blooming. However, all the dimming zones turn on with most real content, so blooming isn't as noticeable.

9.2
Picture Quality
Color Accuracy (Pre-Calibration)
Picture Mode
Color Space (sRGB)
sRGB Gamut Area xy
100.9%
White Balance dE (Avg.)
1.83
Color Temperature (Avg.)
6,736 K
Gamma (Avg.)
2.18
Color dE (Avg.)
1.16
Contrast Setting
75
RGB Settings
100-100-100
Gamma Setting
No Gamma Setting
Brightness Setting
75
Measured Brightness
227 cd/m²
Brightness Locked
No

The Dell U3223QE has fantastic out-of-the-box accuracy. The sRGB mode limits colors to the sRGB color space very well, and they're accurate. The white balance is fantastic, and while the color temperature is slightly on the cold side, the difference isn't noticeable. Gamma follows the sRGB target well, but some darker scenes are slightly too bright. Luckily, the sRGB mode only locks the RGB settings, so you can still adjust other settings like the brightness. Other modes are less accurate, with over-saturated colors.

9.8
Picture Quality
Color Accuracy (Post-Calibration)
Picture Mode
Custom Color
sRGB Gamut Area xy
100.9%
White Balance dE (Avg.)
0.61
Color Temperature (Avg.)
6,458 K
Gamma (Avg.)
2.18
Color dE (Avg.)
0.36
Contrast Setting
75
RGB Settings
100-92-95
Gamma Setting
No Gamma Setting
Brightness Setting
28
Measured Brightness
101 cd/m²
ICC Profile
Download

The Dell U3223QE's accuracy after calibration is incredible. The color temperature is closer to the 6500K target, and any remaining inaccuracies aren't visible to the human eye.

9.6
Picture Quality
SDR Color Gamut
sRGB Coverage xy
100.0%
sRGB Picture Mode
Custom Color
Adobe RGB Coverage xy
89.0%
Adobe RGB Picture Mode
Custom Color

The Dell U3223QE has a remarkable SDR color gamut. It covers the entire sRGB color space, which most web content uses. It has great coverage of the Adobe RGB color space used in photo editing, but like many monitors, it doesn't display greens and reds properly, which isn't ideal if you need to edit photos with these colors.

9.9
Picture Quality
SDR Color Volume
sRGB In ICtCp
99.7%
sRGB Picture Mode
Custom Color
Adobe RGB In ICtCp
96.1%
Adobe RGB Picture Mode
Custom Color

The Dell U3223QE has an exceptional SDR color volume. It displays colors as bright as pure white, and it displays a wide range of colors. It struggles to display really dark colors due to its low contrast, but it's better than most IPS panels thanks to its IPS Black technology.

8.7
Picture Quality
HDR Color Gamut
Wide Color Gamut
Yes
DCI-P3 Coverage xy
94.9%
DCI-P3 Picture Mode
DisplayHDR 400
Rec. 2020 Coverage xy
68.6%
Rec. 2020 Picture Mode
DisplayHDR 400

Update 03/07/2023: While this monitor didn't receive an official firmware update to fix some issues with HDR like with the Dell U2723QE, we still retested it to see if HDR performs differently. Although it uses the same firmware, M3T101, the HDR color gamut is more limited than originally tested, but it isn't a significant difference.

The Dell UltraSharp U3223QE has an excellent overall HDR color gamut. It has near-perfect coverage of the commonly-used DCI-P3 color space but has bad tone mapping and undersaturates colors. You can see an example of how undersaturated the colors are here. They don't look as vivid compared to the Samsung QN90B QLED (left) and the LG G2 OLED (right). The test content uses a Murideo 'The Seven Generator' device. Sadly, it's not future-proof because it has limited coverage of the Rec. 2020 color space, which more content will start to use.

5.1
Picture Quality
HDR Color Volume
DCI-P3 In ICtCp
48.5%
DCI-P3 Picture Mode
DisplayHDR 400
Rec. 2020 In ICtCp
66.0%
Rec. 2020 Picture Mode
DisplayHDR 400

Update 03/07/2023: While this monitor didn't receive an official firmware update to fix some issues with HDR like with the Dell U2723QE, we still retested it to see if HDR performs differently. Although it uses the same firmware, M3T101, the HDR color volume is a lot worse than when originally tested, and it struggles to display bright colors well, meaning colors don't look vivid.

The Dell U3223QE has disappointing HDR color volume. It's limited by the incomplete color space, and it doesn't display really bright or really dark colors all that well. It really struggles to display colors at different luminance levels in the DCI-P3 color space.

5.7
Picture Quality
Reflections
Screen Finish
Semi-Gloss
Total Reflections
9.2%
Indirect Reflections
5.4%
Calculated Direct Reflections
3.8%

The Dell U3223QE's reflection handling is disappointing. Glare from strong light sources is distracting, and even though it gets bright in SDR, it still isn't the best choice if you want to place it opposite a window. It also has a pink tint that's noticeable when comparing it to other monitors like the Dell U2723QE, but it's not distracting during regular use.

9.0
Picture Quality
Text Clarity
Pixel Type
IPS
Subpixel Layout
RGB

The Dell U3223QE has fantastic text clarity thanks to its high pixel density. Enabling Windows ClearType (top photo) makes the letters bolder and easier to read.

9.8
Picture Quality
Gradient
Color Depth
10 Bit

The Dell U3223QE has incredible gradient handling, meaning you won't notice any banding with shades of similar colors.

Motion
6.0
Motion
Refresh Rate
Native Refresh Rate
60 Hz
Max Refresh Rate
60 Hz
Max Refresh Rate Over DP
60 Hz
Max Refresh Rate Over HDMI
60 Hz
Max Refresh Rate Over DP @ 10-bit
60 Hz
Max Refresh Rate Over HDMI @ 10-Bit
30 Hz

The max refresh rate with 10-bit signals and chroma 4:4:4 over HDMI is lower due to bandwidth limitations of HDMI 2.0. If you want to keep the 60Hz refresh rate with a 4k resolution, you need to send a 4:2:2 or 4:2:0 signal, but that worsens text clarity.

Motion
Variable Refresh Rate (VRR)
FreeSync
No
G-SYNC
No
VRR Maximum
N/A
VRR Minimum
No VRR
VRR Supported Connectors
No VRR
Variable Refresh Rate
No

The Dell U3223QE doesn't support variable refresh rate technology.

5.3
Motion
Response Time @ Max Refresh Rate
Recommended Overdrive Setting
Normal
Rise / Fall Time
7.2 ms
Total Response Time
24.3 ms
Overshoot Error
9.5%
Worst 3 Rise / Fall Time
9.1 ms
Worst 3 Total Response Time
31.7 ms
Worst 3 Overshoot Error
18.4%

Overdrive SettingResponse Time ChartResponse Time TablesMotion Blur Photo
NormalChartTablePhoto
FastChartTablePhoto

The Dell U3223QE has a poor response time at its max refresh rate of 60Hz. There's noticeable motion blur with fast-moving objects, like when scrolling through long documents. You can adjust the Response Time setting to 'Fast', but that results in way too much overshoot, causing inverse ghosting.

not tested
Motion
Response Time @ 120Hz
Recommended Overdrive Setting
No 120Hz Refresh Rate
Rise / Fall Time
N/A
Total Response Time
N/A
Overshoot Error
N/A
Worst 3 Rise / Fall Time
N/A
Worst 3 Total Response Time
N/A
Worst 3 Overshoot Error
N/A

The Dell U3223QE doesn't support a 120Hz signal.

5.3
Motion
Response Time @ 60Hz
Recommended Overdrive Setting
Normal
Rise / Fall Time
7.2 ms
Total Response Time
24.3 ms
Overshoot Error
9.5%
Worst 3 Rise / Fall Time
9.1 ms
Worst 3 Total Response Time
31.7 ms
Worst 3 Overshoot Error
18.4%

Overdrive SettingResponse Time ChartResponse Time TablesMotion Blur Photo
NormalChartTablePhoto
FastChartTablePhoto

As the Dell U3223QE has a 60Hz refresh rate, the results for the response time at 60Hz are the same as its max refresh rate.

Motion
Backlight Strobing (BFI)
Backlight Strobing (BFI)
No BFI
Maximum Frequency
N/A
Minimum Frequency
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

The Dell U3223QE doesn't have a backlight strobing feature to reduce persistence blur.

10
Motion
Image Flicker
Flicker-Free
Yes
PWM Dimming Frequency
>1000 Hz

The Dell U3223QE uses pulse width modulation (PWM) to dim its backlight below max brightness. However, the flicker frequency is so high that you won't notice it.

Inputs
8.2
Inputs
Input Lag
Native Resolution @ Max Hz
8.9 ms
Native Resolution @ 120Hz
N/A
Native Resolution @ 60Hz
8.9 ms
Backlight Strobing (BFI)
N/A

The Dell U3223QE has low enough input lag that you won't notice any delay during desktop use.

9.0
Inputs
Resolution And Size
Native Resolution
3840 x 2160
Aspect Ratio
16:9
Megapixels
8.3 MP
Pixel Density
139 PPI
Measured Screen Diagonal
31.5"
Screen Area
425 in²
6.0
Inputs
PS5 Compatibility
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
No
1440p @ 60Hz
Yes
1080p @ 120Hz
No
1080p @ 60Hz
Yes
HDR
Yes
VRR
No

As the Dell U3223QE only has HDMI 2.0 bandwidth, it has limited compatibility with the PS5 and its advanced features. You can only play 4k games up to 60 fps.

5.8
Inputs
Xbox Series X|S Compatibility
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
No
1440p @ 60Hz
Yes
1080p @ 120Hz
No
1080p @ 60Hz
Yes
HDR
Yes
VRR
No

Like with the PS5, you can only play games up to 60 fps on the Xbox Series X, and you can't take full advantage of the console's features. You can force a custom 1080p resolution with a 120Hz refresh rate, and the monitor accepts the signal, but it's frame skipping and not displaying a true 120Hz signal. This happened with the Xbox and not the PS5.

Inputs
Inputs Photos

The Dell U3223QE's standout feature is its massive USB hub. Most of the inputs are on the back, but there are two on the left underside, which are easier to access if you need to connect a mouse and keyboard. The right USB-C port on the back is an upstream port, which you need to use if you want to use the KVM switch.

Inputs
Video And Audio Ports
DisplayPort
1 (DP 1.4)
Mini DisplayPort
No
HDMI
1 (HDMI 2.0)
HDMI 2.1 Rated Speed
No HDMI 2.1
DVI
No
VGA
No
Daisy Chaining
DisplayPort Out
3.5mm Audio Out
1
HDR10
Yes
3.5mm Audio In
No
3.5mm Microphone In
No

The DisplayPort Out port is on the right if you want to daisy chain a second monitor. It sends a 4k @ 60Hz signal with 10-bit color depth without any problems to a second display if your graphics card supports Display Stream Compression (DSC). The Dell U3223QE also has an RJ45 Ethernet port, allowing you to connect directly to the monitor if your laptop doesn't have an Ethernet port, and it works without issues.

Inputs
USB
USB-A Ports
5
USB-A Rated Speed
10Gbps (USB 3.2 Gen 2)
USB-B Upstream Port
No
USB-C Ports
3
USB-C Upstream
Yes
USB-C Rated Speed
10Gbps (USB 3.2 Gen 2)
USB-C Power Delivery
90W
USB-C DisplayPort Alt Mode
Yes
Thunderbolt
No

The middle USB-C port on the back supports DisplayPort Alt Mode, allowing you to display an image from a compatible device and charge it at the same time. It's the only port that supports 90W power delivery, while the one underneath the left side is only 15W, and the other is an upstream port needed for the KVM switch to work. If you want to charge a power-hungry device like a work laptop, connect it to the USB-C port with DisplayPort Alt Mode.

If you use the USB-C ports for daisy-chaining, you need to make sure you set USB-C Prioritization to 'High Resolution' so that you can get two monitors at 4k @ 60Hz with 8-bit color depth, but once you set it to 10-bit color depth the signal is unstable. If you set USB-C Prioritization to 'High Data', both displays will run at 30Hz.

Inputs
macOS Compatibility

The Dell U3223QE works without any issue with recent MacBooks. The USB hub and Ethernet port work as intended, and windows return to their proper screens when waking up from sleep. If you try to daisy chain a second display, it will just mirror the first display with a MacBook connected.

Features
Features
Additional Features
Speakers
No
RGB Illumination
No
Multiple Input Display
PIP + PBP
KVM Switch
Yes

The Dell U3223QE has a bunch of extra features to increase your productivity while working, including:

  • ComfortView Plus: Removes blue light to help reduce eye strain.
  • KVM Switch: Allows you to connect a keyboard and mouse to the monitor and control two sources with them.
  • Multi-Monitor Sync: Synchronizes multiple monitor's settings when daisy chaining via DisplayPort.
  • Multi-Stream Transport: Allows you to daisy chain via DisplayPort or USB-C.
  • Power Sync: Automatically turns the display on and off when connected to a Dell PC via USB-C.
  • USB-C Prioritization: Lets you change the setting between 'High Data Speed' for DisplayPort 1.2 bandwidth and USB 3.2 Gen 2 speed or 'High Resolution' for DisplayPort 1.4 bandwidth and USB 2.0 speed. Both settings work with 4k @ 60Hz signals if you have one monitor connected, but you need to set it to 'High Resolution' for daisy chaining if you want both to run at 60Hz.

Features
On-Screen Display (OSD)