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  1. Table of Contents
  2. Intro
  3. Design
    1. Stand
    2. Ergonomics
    3. Back
    4. Borders
    5. Thickness
    6. Build Quality
  4. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Peak Brightness
    4. HDR Peak Brightness
    5. Horizontal Viewing Angle
    6. Vertical Viewing Angle
    7. Gray Uniformity
    8. Black Uniformity
    9. Pre Calibration
    10. Post Calibration
    11. SDR Color Gamut
    12. SDR Color Volume
    13. HDR Color Gamut
    14. HDR Color Volume
    15. Image Retention
    16. Reflections
    17. Gradient
    18. Color Bleed
  5. Motion
    1. Motion Blur
    2. Image Flicker
    3. Refresh Rate
  6. Inputs
    1. Input Lag
    2. Resolution and Size
    3. Main Inputs
    4. Other Inputs
    5. Total Inputs
  7. Features
    1. Additional Features
    2. On-Screen Display (OSD)
    3. Controls
    4. In The Box
  8. Conclusion
  9. Q&A
Reviewed on Dec 01, 2017 , Ian Cumming, Mehdi Azzabi, Eric Bousquet

Dell UltraSharp U2717D
MONITOR REVIEW

Usage Ratings - Version 1.0
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Test Benches:

  • 1.0: Fall 2017
7.1 Mixed Usage
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Score components:
  • 30% Office
  • 30% Multimedia
  • 25% Gaming
  • 10% Media Creation
  • 5% HDR Gaming
7.4 Office
7.3 Gaming
6.9 Multimedia
7.1 Media Creation
5.1 HDR Gaming
Size : 27 "
Resolution : 2560x1440
Refresh Rate : 60 Hz
LCD Type
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What it is: Type of LCD technology used by the monitor.
When it matters: Different technologies have different viewing angle properties.
:
IPS

The Dell U2717D is a decent 27 inch IPS-type LCD monitor with great ergonomics and a wide viewing angle. Its picture quality is decent, and it gets bright enough to suit most environments. Unfortunately though, it isn't the best for gaming due to its relatively high input lag at its native resolution, and its uneven blacks with visible backlight bleed leave a lot to be desired.

Test Results
Design 7.5
Picture Quality 6.5
Motion 7.2
Inputs 7.3
Pros
  • Wide viewing angle
  • Very flexible stand
Cons
  • Uneven, cloudy blacks with visible backlight bleed
  • Higher than average input lag

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7.5

Design

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Score components: Subjectively assigned
Dell U2717D Design Picture
Curved : No
Curve radius : N/A
Weight (without stand) : 10.0lbs (4.5 kg)
Weight (with stand) : 15.4lbs (7.0 kg)

The design of this 27" Ultrasharp is almost the same as Dell's other monitors in the Ultrasharp range. It has a rectangular stand with a small footprint, which feels very stable. It also has a good range of ergonomic adjustments, so finding a comfortable viewing position is easy. Overall, the monitor looks professional and feels high quality.

Stand
Dell U2717D Stand picture
Width : 11.5" (29.2 cm)
Depth : 7.8" (19.9 cm)

The stand of the U2717D is similar to other Dells with a rectangular base. It supports the monitor well and feels firm.

8.3 Ergonomics
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What it is: How much the position of the screen can be adjusted to match the viewing preference of the user.
When it matters: All usages, but especially office and gaming use.
Score components:
  • 45% Height Adjustment
  • 18% Switch portrait/landscape
  • 18% Swivel Range
  • 18% Tilt Range
Dell U2717D Ergonomics picture
Height Adjustment : 5.1" (13.0 cm)
Switch portrait/landscape : Yes
Swivel Range : -45° to 45°
Tilt Range : -20° to 5°

The ergonomic adjustment of the U2717 is great, with a good height adjustment and the ability to rotate portrait.

Back
Dell U2717D Back picture
Wall Mount : Vesa 100x100

The rear of the monitor is simple and looks similar to other Dell models. There is a hole in the stand for routing cables, as visible here.

Borders
Dell U2717D Borders picture
Borders : 0.3" (0.7 cm)

The borders are very thin, and look good. This is ideal for multi-monitor setups as they can be placed very close together.

Thickness
Dell U2717D Thickness picture
Thickness (with stand) : 5.5" (13.9 cm)
Thickness (without stand) : 1.7" (4.2 cm)

The monitor has an average thickness when viewed from the side. It sits close to a VESA mount, which is great.

7.5 Build Quality
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What it is: How well built and sturdy the monitor is, and how good the materials used to build it are.
When it matters: All usages.
Score components: Subjectively assigned
Dell U2717D Build Quality picture

The build quality of the Dell U2717D is good, which is fitting for the professional look. Movement of the stand feels smooth and purposeful, and the plastic parts fit together well.

The Dell U2717D overall picture quality is not bad, but could be better when it is set in a dark environment as the contrast ratio is not that high and the black uniformity is poor. This results in a washed-out look for multimedia content, especially dark scenes in movies. On the other hand, when it is set in a brighter environment like an office space, the U2717D is a much better performer, as it can get bright enough to fight glare and the screen finish is better than average at dealing with reflections. The U2717D has an excellent gray uniformity with no dirty screen at all. It also has a decent viewing angle, which is important since no matter from which angle you look this monitor you're always going to have a relatively good picture quality. Finally, since this monitor is relatively basic it does not have any extra features like HDR.

6.0 Contrast
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What it is: Brightness difference between white and black. This is the main component of picture quality.
When it matters: Always, but especially when watching dark scenes.
Score components:
Dell U2717D Checkerboard Picture
Native Contrast
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What it is: Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with a white target of 100 cd/m².
When it matters: Dark scenes in a dark room.
Good value: > 3,000
Noticeable difference: 500
:
986 : 1
Contrast with local dimming
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What it is: Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with local dimming turned on (maximum) with a white target of 100 cd/m².
When it matters: Dark scenes in a dark room.
Good value: > 3,000
Noticeable difference: 500
:
N/A

Passable contrast ratio for the U2717D. At close to 1000:1, it won't be the best monitor for dark room viewing but should perform well when set in a bright room, like an office space.

0 Local Dimming
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What it is: The lights behind the LCD layer adapt to the picture displayed, improving the contrast ratio.
When it matters: Dark scenes viewed in a dark room.
Score components: Subjectively assigned
Local Dimming
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What it is: Whether it has a feature that controls the LEDs behind the LCD layer, to match the picture and darkens the dark portion of it.
When it matters: On LED TVs only. Dark scenes viewed in a dark room.
:
No
Backlight
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What it is: Configuration of the lights of the backlight.
When it matters: Effectiveness of the local dimming.
Good value: Full-array/direct lighting is better for local dimming. As for the uniformity of the screen, it depends on the implementation. Some edge-lit monitors have more uniform blacks than some full-array monitors.
:
Direct

There is no local dimming feature on this monitor. The video is for reference only.

7.5 SDR Peak Brightness
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What it is: How bright the screen can get. Measured with local dimming and with SDR content.
When it matters: Bright living rooms; bright objects; SDR content.
SDR Real Scene
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What it is: The maximum luminosity the TV can obtain while playing a movie or while watching a TV show. Our Real Scene was selected to represent a more regular movie condition. All measurements are made with the TV set to be as bright as possible, but with a 6500k white. Measured with local dimming on, max backlight and with an SDR signal. Scene: here.
When it matters: When watching movies and TV shows in SDR.
:
298 cd/m²
SDR Peak 2% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, present on screen for a short time
:
309 cd/m2
SDR Peak 10% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, present on screen for a short time
:
311 cd/m2
SDR Peak 25% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
307 cd/m2
SDR Peak 50% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
307 cd/m2
SDR Peak 100% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
308 cd/m2
SDR Sustained 2% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, persistent during a scene.
:
307 cd/m2
SDR Sustained 10% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, persistent during a scene.
:
310 cd/m2
SDR Sustained 25% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
307 cd/m²
SDR Sustained 50% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
304 cd/m2
SDR Sustained 100% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
304 cd/m2
SDR ABL
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What it is: The standard deviation of the SDR sustained brightness, after linearizing for noticeable differences in luminosity
When it matters: Content with large bright areas, such as for PC or video game use, and sports such as hockey
:
0.001

The U2717D's brightness is quite good. At around 300 cd/m2 on average, most people shouldn't have any issues with the light output of this monitor. This is most useful in brighter environments where lots of reflections might be an issue.

0 HDR Peak Brightness
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What it is: How bright the screen can get. Measured with local dimming and with HDR content.
When it matters: HDR content
HDR Real Scene : N/A
HDR Peak 2% Window : N/A
HDR Peak 10% Window : N/A
HDR Peak 25% Window : N/A
HDR Peak 50% Window : N/A
HDR Peak 100% Window : N/A
HDR Sustained 2% Window : N/A
HDR Sustained 10% Window : N/A
HDR Sustained 25% Window : N/A
HDR Sustained 50% Window : N/A
HDR Sustained 100% Window : N/A
HDR ABL : N/A

HDR is not supported.

7.2 Horizontal Viewing Angle
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What it is: Color accuracy when viewed from the side.
Dell U2717D Horizontal Color Shift Picture
Color Shift from Left
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What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your left
Good value: > 50°
Noticeable difference: 10°
:
34 °
Color Shift from Right
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What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right
Good value: > 50°
Noticeable difference: 10°
:
37 °
Dell U2717D Horizontal Brightness Picture
Brightness from Left
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What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your left.
Good value: > 50°
Noticeable difference: 10°
:
44 °
Brightness from Right
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What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
47 °
Dell U2717D Horizontal Black Level Picture
Black Level from Left
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What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Black Level from Right
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What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Curve Radius : N/A

Decent horizontal viewing angle. The Dell U2717D's behavior at an angle is characteristic of other IPS type LCD monitors; its black level remains the same regardless of the viewing position, and its colors and brightness are relatively well maintained at an angle.

7.0 Vertical Viewing Angle
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What it is: Color accuracy when viewed from the top or bottom.
Dell U2717D Vertical Color Shift Picture
Color Shift from Below
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What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
27 °
Color Shift from Above
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What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor when standing up.
Good value: > 50°
Noticeable difference: 10°
:
23 °
Dell U2717D Vertical Brightness Picture
Brightness from Below
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What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
34 °
Brightness from Above
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What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor while standing up.
Good value: > 50°
Noticeable difference: 10°
:
31 °
Dell U2717D Vertical Black Level Picture
Black Level from Below
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What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Black Level from Above
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What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor while standing up.
Good value: > 50°
Noticeable difference: 10°
:
24 °

Average vertical viewing angle. As is typical of most screens, the viewing angle of the U2717D is worse vertically than horizontally. The experience is quite similar to what is perceived horizontally, but the degrees at which the loss of quality is significant are lower than on a horizontal axis.

8.5 Gray Uniformity
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What it is: Evenness of colors onscreen (not just gray).
When it matters: Solid colors. Sports, panning shots.
Score components:
Dell U2717D 50% Uniformity Picture
50% Std. Dev.
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What it is: Average squared difference of pixels when displaying a mid 50% gray.
When it matters: Solid colors. Sports, panning shots.
Good value: < 2.5%
Noticeable difference: 1%
:
3.499 %
50% DSE
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What it is: High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Solid colors. Sports, panning shots.
Good value: < 0.165%
Noticeable difference: 0.025%
:
0.114 %
Dell U2717D 5% Uniformity Picture
5% Std. Dev.
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What it is: Average squared difference of pixels when displaying a mid 5% gray.
When it matters: Dark scenes.
Good value: < 1.15%
Noticeable difference: 1%
:
0.565 %
5% DSE
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What it is: High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Dark scenes.
Good value: < 0.116%
:
0.064 %

The gray uniformity is impressive on this Dell monitor. When looking at our 5% gray uniformity test picture, the only main issues that we can notice is the darker area near the edge of the screen, but besides that, not much comes up, and dirty screen effect is not visible.

The 5% gray uniformity is even better, as visually not much is noticeable, and if we look at the standard deviation number and DSE, those numbers are very low, pointing to a very good uniformity.

3.6 Black Uniformity
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What it is: Evenness of blacks.
When it matters: Dark scenes viewed in a dark room.
Score components:
Dell U2717D Native Black Uniformity Picture
Native Std. Dev.
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What it is: Average of the squared difference of the blacks.
When it matters: Dark scenes viewed in a dark room.
Good value: <2%
Noticeable difference: 1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
:
3.611 %
Std. Dev. w/ L.D.
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What it is: Average of the squared difference of the blacks with Local Dimming enabled
When it matters: Dark scenes viewed in a dark room.
Good value: <2%
Noticeable difference: 1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
:
N/A

The black uniformity of the Dell U2717D is poor. Looking at our test picture, we can see that backlight bleed is visible near the bottom and top edge. There are also some faint horizontal lines, but those lines are not visible while watching some normal content, so they are not really problematic.

7.2 Pre Calibration
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What it is: Monitor's color accuracy before a full calibration. The measurements are taken with out of the box 'factory setting'.
When it matters: All video on an uncalibrated TV. This represents most people's use cases.
Score components:
Dell U2717D Pre Calibration Picture Dell U2717D Pre Gamma Curve Picture Dell U2717D Pre Color Picture
Picture Mode
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What it is: The picture mode that was used to do the pre-calibration reading. We usually go for the picture mode that gives us the more control over all the picture quality setting.
:
Custom Color
Luminance
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What it is: The luminance at which the pre-calibration reading was done. This represents the luminance of the monitor when it is at the factory default settings.
:
276.1 cd/m2
Luminance Settings
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What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
75
Contrast Setting
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What it is: The monitor contrast setting, usually ranging from 0 to 100.
:
75
RGB controls
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What it is: This is the value for each color (red, green, and blue) used in the monitor internal RGB cuts/gains controls. If the monitor does not have an internal RGB cuts/gains controls, then the color temperature setting will be used instead, and the color temperature that gives us the best result will be used.
:
100-100-100
Color Temperature
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What it is: The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color for PC monitors and also for the sRGB color standard.
When it matters: When you care about color reproduction and accuracy.
Good value: 6500K
Noticeable difference: 400K
:
7230 K
White Balance dE
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What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all video.
Good value: < 3
Noticeable difference: 1
:
3.75
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
2.75
Gamma
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What it is: Brightness of shades of gray.
When it matters: Shadows.
Good value: Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference: 0.1
:
2.23

Out of the box, the Dell U2717D monitor has a decent accuracy. The picture mode with the best accuracy was the 'Custom Color', and this with the default red, green, and blue values (100-100-100). The next more accurate picture modes were the 'Standard' and the 'sRGB' picture mode, which both had a similar white balance dE (5.39 and 5.6) and color de (3.76 and 3.42).

Looking more in detail the result from the 'Custom Color' picture mode, the white balance dE is a bit high, enough that most enthusiasts would notice the inaccuracies. For the color dE, 2.75, it is in the same ballpark as the white balance. For the color temperature, all picture mode did have a color temperature higher than our desired target of 6500k, which can be a bit too cold for some peoples.

Finally, the gamma was not far from our 2.2 target, but looking at the gamma curve, we see that it overshot the target curve in the dark IRE and did dip in the brighter end.

9.0 Post Calibration
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What it is: Monitor's color accuracy after a full calibration with a spectrophotometer.
When it matters: All graphics and video content on a monitor that has been professionally calibrated.
Score components:
Dell U2717D Post Calibration Picture Dell U2717D Post Gamma Curve Picture Dell U2717D Post Color Picture
Picture Mode
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What it is: The picture mode that was used to do the calibration reading. We usually go for the picture mode that gives us the more control over all the picture quality setting.
:
Custom Color
Luminance
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What it is: The luminance at which the calibration was executed. We aim for a luminance level of 100 cd/m².
:
96.1 cd/m2
Luminance Settings
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What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
22
Contrast Setting
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What it is: The monitor contrast setting, usually ranging from 0 to 100.
:
74
RGB controls
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What it is: This is the value for each color (red, green, and blue) used in the monitor internal RGB cuts/gains controls. If the monitor does not have an internal RGB cuts/gains controls, then the color temperature setting will be used instead, and the color temperature that gives us the best result will be used.
:
100-95-94
Color Temperature
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What it is: The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color for PC monitors and also for the sRGB color standard.
When it matters: When you care about color reproduction and accuracy.
Good value: 6500K
Noticeable difference: 400K
:
6299 K
White Balance dE
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What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all videos.
Good value: < 3
Noticeable difference: 1
:
1.64
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
1.02
Gamma
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What it is: Brightness of shades of gray.
When it matters: Shadows.
Good value: Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference: 0.1
:
2.19

After calibration, which was also done on the 'Custom Color' picture mode, the Dell U2717D has an excellent accuracy. Both the white balance dE and color dE were brought down by almost half, and are now hovering just above the level which most people would not notice any inaccuracies.

The color temperature after calibration is warmer, but a bit more than our 6500k color temperature, but it is within an acceptable range.

As for the gamma, it is much more on target, especially the curve, which is tracking the target curve much more closely.

You can download our ICC profile calibration here.

8.7 SDR Color Gamut
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What it is: The palette of colors the monitor can display
When it matters: General content consumption or production
Score components:
Dell U2717D Color Gamut s.RGB Picture
s.RGB xy
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What it is: Coverage of the s.RGB colorspace on CIE 1931 xy.
When it matters: Almost all content. Includes websites, standard windows environment and SDR movies
Good value: > 95%
Noticeable difference: 5%
:
99.2 %
Dell U2717D Color Gamut ARGB Picture
Adobe RGB xy
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What it is: Coverage of the Adobe RGB colorspace on CIE 1931 xy.
When it matters: Professional photography.
Good value: > 90%
Noticeable difference: 5%
:
75.6 %

Excellent SDR color gamut. The U2717D can reproduce the standard RGB (s.RGB) color space almost perfectly. Unfortunately, it does not offer proper Adobe RGB color space tracking, so its performance in the more demanding color gamut is a bit lackluster.

8.2 SDR Color Volume
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What it is: How much of the SDR color spaces the monitor can reproduce
When it matters: General usage and SDR media creation
Score components:
Dell U2717D s.RGB Color Volume ITP picture
s.RGB in ICtCp
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What it is: How much of the s.RGB colorspace a monitor can display at different luminosity levels
When it matters: Most content, including web, SDR video games, and SDR media creation
:
88.5 %
Dell U2717D Adobe RGB Color Volume ITP Picture
Adobe RGB in ICtCp
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What it is: How much of the Adobe RGB colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness.
When it matters: Professional media creation
:
75.9 %

Good SDR color volume. The Dell U2717D has no issue covering the great majority of the s.RGB color volume, with most of its limitation being caused by its lower contrast ratio which stops it from displaying darker tones. Unfortunately, as was seen in our color gamut test, the Adobe RGB coverage is less than desirable.

0 HDR Color Gamut
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What it is: The monitor's ability to reproduce HDR color spaces
When it matters: HDR content consumption or media creation
Score components:
Wide Color Gamut
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What it is: Whether the monitor can support wider color gamuts
When it matters: HDR content and media creation
:
No
DCI P3 xy
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What it is: Coverage of the DCI P3 colorspace on CIE 1931 xy
When it matters: When consuming or producing HDR content.
:
N/A
Rec. 2020 xy
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What it is: Coverage of the Rec.2020 colorspace on CIE 1931 xy.
When it matters: When consuming or producing HDR content.
Good value: > 90%
Noticeable difference: 5%
:
N/A

HDR is not supported.

0 HDR Color Volume
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What it is: How much of the HDR color spaces a monitor can display at different luminosity levels.
When it matters: HDR content consumption and production. Includes streaming services, UHD Blu-rays and HDR games.
Score components:
DCI-P3 in ICtCp
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What it is: How much of the DCI-P3 colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness output.
When it matters: HDR content.
Good value: 80%
Noticeable difference: 5%
:
N/A
Rec. 2020 in ICtCp
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What it is: How much of the Rec. 2020 colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness output.
When it matters: HDR content.
Good value: 80 %
Noticeable difference: 5 %
:
N/A

HDR is not supported.

10 Image Retention
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What it is: How much a static image is retained on a monitor screen after a certain amount of time.
When it matters: When working or playing video games on your PC monitor.
Dell U2717D Image Retention Picture
IR after 0 min recovery
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What it is: Image retention measured right after the static image exposure, without recovery time.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %
IR after 2 min recovery
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What it is: Image retention measured after a recovery time of 2 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect
Noticeable difference: 0.015%
:
0 %
IR after 4 min recovery
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What it is: Image retention measured after a recovery time of 4 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %
IR after 6 min recovery
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What it is: Image retention measured after a recovery time of 6 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %
IR after 8 min recovery
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What it is: Image retention measured after a recovery time of 8 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %
IR after 10 min recovery
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What it is: Image retention measured after a recovery time of 10 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0 %

Perfect score on our image retention test, as nothing could be picked up on our test pictures.

7.5 Reflections
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What it is: How much light is reflected by the TV.
When it matters: Bright rooms.
Score components: Subjectively assigned
Dell U2717D Average room Dell U2717D Average room off picture Dell U2717D Bright room off picture

The reflection handling of the U2717D is good. It has a light-matte finish which diffuses reflection on the screen, reducing their intensity. It is fine for most rooms, but in a bright room, reflections may be distracting.

8.1 Gradient
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What it is: How finely levels of color can be displayed.
When it matters: Details in shadows, sky and skin tones. Matters more for HDR content.
Score components: Subjectively assigned
Dell U2717D Gradient Picture
Color Depth
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What it is: Number of bits per pixel to represent a specific color. Note: we consider 8-bit with dithering to be equivalent to 10-bit, as long as the 10-bit gradient looks smooth.
When it matters: HDR content like HDR video games or HDR UHD movies. Won't matter for regular Blu-ray movies, SDR video game or desktop environment content displayed from a Windows PC. Those are limited to 8-bit color.
Good value: 10-bit.
Noticeable difference: 1 bit.
:
8 Bit

The Dell U2717d has a great performance while displaying our gradient test image. The 8-bit banding is visible and this is due to the limitation of this monitor, but besides that, only small color issues are visible in the darker shade of color, which does not really results in any problems while looking at normal content.

10 Color Bleed
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What it is: How much the color from one area of the screen affects the color in another area of the screen.
When it matters: All usages, but especially media creation.
Score components:
Dell U2717D Color bleed horizontal
Pixel row error
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What it is: The amount of bleed that appears across the screen horizontally.
When it matters: General usage of a PC monitor, can appear when browsing the web or with media creation like graphics.
Good value: <0.2%
Noticeable difference: 0.1%
:
0.000 %
Dell U2717D Color bleed vertical
Pixel column error
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What it is: Amount of color bleeding that appears across the screen vertically.
When it matters: Most uses of a PC monitor. Can appear while browsing the web or when editing images or graphics.
Good value: <0.2%
Noticeable difference: 0.1%
:
0.000 %

The U2717D is free of color bleed. This is particularly useful for graphic artists which use large, uniformly colored elements.

7.2

Motion

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Score components:

Motion looks decent on the Ultrasharp U2717D, but not as good as on many gaming monitors. While the U2717D has a fast pixel response time and a flicker-free backlight, its mediocre 60 Hz refresh rate and lack of FreeSync or G-Sync can be limiting for some use cases like gaming.

8.5 Motion Blur
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What it is: The performance of the pixel response time. Poor response time causes trails to follow moving objects. Response time is one of a few sources of motion blur.
When it matters: When there's fast movement on screen, such as during video games and sports.
Score components:
Dell U2717D Motion Blur Picture Dell U2717D Response Time Chart
80% Response Time
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What it is: How quickly pixels can reach 80% of a full transition from one color to another.
When it matters: When there's fast movement on screen, such as during video games and sports.
Good value: < 8 ms
Noticeable difference: 4 ms
:
4.7 ms
100% Response Time
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What it is: How quickly pixels can fully transition from one color to another.
When it matters: When there's fast movement on screen, such as during video games and sports.
Good value: < 20 ms
Noticeable difference: 10 ms
:
15.7 ms
Best Overdrive Setting
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What it is: If the monitor has adjustable pixel overdrive settings, which one produces the best response time with minimal overshoot.
When it matters: When adjusting the monitor's settings to get the least possible motion blur.
:
Normal

Response Time Normal
Response Time Fast

Very good response time, good enough for watching fast moving content. Almost all the blur in the photo is due to persistence; only a faint ghosting trail can be seen following the moving logo, and no smearing is visible. The 'Response Time Normal' setting was the most balanced; the 'Fast' setting introduced a lot of bothersome overshoot and so is not recommended.

7.5 Image Flicker
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What it is: Luminosity pattern when displaying images
When it matters: Nearly all the time during PC monitor use, but especially during fast movement such as video games
Dell U2717D Backlight Picture
Flicker-free : Yes
PWM Dimming Frequency
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What it is: Flickering pattern at different luminosities.
When it matters: For people sensitive to flickering.
Good value: N/A or high frequencies (> 300 Hz). Frequencies that are multiples of 60Hz are better.
:
0 Hz
Black Frame Insertion (BFI)
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What it is: Option to turn screen black between frames
When it matters: Reduces eye tracking blur in motion
Good value: Yes
:
No
BFI Maximum Frequency
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What it is: Highest possible frequency of flickering pattern
When it matters: Reduces eye-tracking blur in motion
Good value: Matches the native refresh rate
Noticeable difference: 20 Hz
:
N/A
BFI Minimum Frequency
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What it is: Lowest possible frequency of flickering pattern
When it matters: Reduces eye-tracking blur in motion
Good value: 60 Hz
Noticeable difference: 20 Hz
:
N/A

The U2717 has a flicker-free backlight at all brightness levels, which is great. Unfortunately, the monitor doesn't have an optional black frame insertion feature that intentionally adds flicker to clear up motion, but lack of BFI is common for 60 Hz monitors because most people find 60 Hz flicker bothersome.

6.7 Refresh Rate
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What it is: How frequently the monitor can refresh and show new frames, and whether it can vary its refresh rate in real time using technologies like G-sync and FreeSync.
When it matters: Mostly for gaming, but does provide a little better motion during normal usage.
Native
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What it is: The frequency at which the monitor is capable of displaying images every second
When it matters: General usage, but better results are most important for gaming
Good value: >100 Hz
Noticeable difference: 15 Hz
:
60 Hz
Factory Overclock
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What it is: The frequency at which the monitor's can be boosted to using its internal menu.
When it matters: Gaming and other usages where high frame rate content is consumed.
Good value: >100
Noticeable difference: 15
:
N/A
Variable Refresh Rate
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What it is: Feature that allows the monitor to synchronize its refresh rate with the input device's output and reduces stuttering and screen tearing.
When it matters: Almost every usage, but is most noticeable in gaming where constant fluctuation in framerate cause distracting artifacts.
:
No
VRR Maximum
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What it is: The maximum frequency covered by the Variable Refresh Rate feature of the monitor.
When it matters: Any time the VRR feature is enabled.
Good value: Matches Refresh rate
Noticeable difference: 10 Hz
:
N/A
VRR Minimum
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What it is: The lowest frequency covered by the monitor's Variable Refresh Rate feature.
When it matters: When using the VRR feature of the monitor at lower frame rates.
Good value: 30 Hz
:
N/A
VRR Maximum With OC
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What it is: The maximum frequency covered by the Variable Refresh Rate feature when the monitor's overclocking feature is used.
When it matters: When both the overclocking and VRR features are used.
Good value: Matching the overclocked refresh rate.
Noticeable difference: 10 hz
:
N/A
VRR Supported Connectors : N/A

The monitor only has a mediocre 60 Hz native refresh rate, which is the norm for non-gaming monitors. This won't be noticed much during most use cases, but many gamers will be disappointed by the low refresh rate and lack of variable refresh rate like FreeSync.

7.3

Inputs

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Score components:

The U2717D has a large 1440p 27" panel, which is great for almost any usage. Unfortunately, it has strangely high input lag at its native resolution, which won't be too bothersome most of the time but can be a problem during gaming.

6.6 Input Lag
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What it is: Delay between input and onscreen reaction.
When it matters: General usage of the mouse and gaming.
Native Resolution
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What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying its native resolution at its native refresh rate.
When it matters: General usage and while playing video games.
Good value: < 15 ms
Noticeable difference: 5 ms
:
33.4 ms
Non-Native Resolution
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What it is:

Lowest input lag possible at the center of the screen, when the monitor is displaying an alternative resolution at its native refresh rate. The non-native resolution tested depends on the native resolution of the monitor, following this pattern unless otherwise specified in the Input Lag text:

Native Resolution Non-Native Resolution Tested
4k UHD QHD
QHD FHD
FHD 1600x900
3440x1440 2560x1080
2560x1080 1920x1080
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
8.8 ms
Native Resolution @ 60 Hz
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What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying its native resolution at a refresh rate of 60 Hz.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
33.4 ms
Variable Refresh Rate
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What it is: Lowest input lag possible at the center of the screen, when the monitor is using its Variable Refresh Rate feature at its native resolution.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
N/A
HDR
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What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying an HDR signal at its native resolution and refresh rate.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
N/A
Black Frame Insertion (BFI)
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What it is: Lowest input lag possible at the center of the screen, when BFI is enabled and the monitor is displaying a signal at the highest supported BFI refresh rate.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
N/A

The native resolution input lag is oddly high, far higher than most monitors. During most usages this high input lag can only be felt if the user is sensitive to input lag, but for gaming it will impact performance in many scenarios. The high input lag was also very inconsistent: when the monitor is allowed to sleep then woken up the lag is ~33ms, when it's powered off for a while then powered back on the lag is ~40 ms, and when it's unplugged or factory reset the lag becomes ~26 ms. Even stranger, non-native resolutions like 1080p somehow avoid this issue and have low input lag. This high input lag wasn't seen on the 2015 Ultrasharp U2715H, so Dell may have added extra processing to this 2017 U2717D model that increased the input lag to what it is now.

8.4 Resolution and Size
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What it is: The number of pixels the monitor can display, and the surface area of its screen.
When it matters: All usages, but especially for office and media editing.
Score components:
Native Resolution : QHD, 2560 x 1440
Aspect Ratio : 16:9
Megapixels : 3.7 MP
Pixel Density : 109 PPI
Screen Diagonal : 26.9 inches
Screen Area : 310 sq inches

The monitor has a sharp 1440p resolution and a large 27" size, which will impress during almost any usage.

Main Inputs
Other Inputs
Total Inputs
DisplayPort : 1 (DP 1.2)
Mini DisplayPort : 1 (DP 1.2)
HDMI : 1 (HDMI 1.4)
DVI : No
VGA : No
DisplayPort Out : 1 (DP 1.2)
USB : 4 (USB 3.0)
USB C : No
Analog Audio Out 3.5mm : 1
Microphone In 3.5mm : No
Digital Optical Audio Out : No
Analog Audio Out RCA : No

The U2717 has a DisplayPort Out for daisy chaining with another monitor; this allows two monitors to be fed from one DisplayPort on a computer. Also, the lower of the two USB ports on the side supports the USB BC1.2 battery charging standard and has a different icon. This gives it enhanced charging capabilities, such as higher current modes.

Features

The Ultrasharp U2717 uses Dell's well organized on-screen display, which has all the standard features of a monitor such as adjustable image, color and overdrive settings but also some extra features such as USB always on and DisplayPort daisy chaining.

Additional Features
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What it is: Additional features found on the monitor
Score components:
Speakers
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What it is: Whether or not the monitor features standalone speakers.
When it matters: When using your computer without headphones or a dedicated pair of speakers.
:
No
HDR10 : No

The U2717D has a DisplayPort Out that supports Multi Stream Transport (MST), which can be used for daisy chaining with another display. This allows a computer to feed the U2717 the video feed for two monitors, and the U2717 fowards the second feed to the second monitor, effectively allowing dual monitors using only one port.

Also there is an option to leave the USB ports on while the monitor is on standby, so it can still act as a USB hub.

On-Screen Display (OSD)
Controls
Dell U2717D Controls picture

The monitor has a standard four button control scheme for the OSD, and one power button. The buttons have decent tactile feedback and don't take up much bezel space because the bottom bezel is at an extreme angle, but a joystick would be better for navigating the OSD, like on many LG and Samsung monitors.

In The Box
Dell U2717D In The Box picture

  • Manual and drivers
  • Calibration report
  • Power cable
  • USB cable
  • Displayport to Mini Displayport cable

Conclusion

7.1Mixed Usage
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Score components:
  • 30% Office
  • 30% Multimedia
  • 25% Gaming
  • 10% Media Creation
  • 5% HDR Gaming
The Dell U2717D is a decent monitor for a mixed usage. It has a wide viewing angle which makes it easy to enjoy from many viewing positions, and its screen is quite bright. Unfortunately, its uneven blacks hinder its picture quality, and its higher than average input lag makes it less desirable for gaming.
Good monitor for usage in an office. It's highly adjustable stand makes it easy to set up in a position comfortable for long hours of work. Its pivot feature combined with its wide viewing angles also make it easy to share with neighboring colleagues. It does get decently bright, but its handling of reflections could be a little better.
Passable monitor for playing video games. While it handles motion blur decently, the U2717D's input lag is quite high when used in its native resolution. This is less of an issue for people that use wireless controllers instead of a mouse and keyboard, but the monitor also lacks more advanced features like a high, variable refresh rate.
The U2717D does about average for multimedia consumption. Its picture quality is decent, but its less than stellar blacks leave a lot to be desired. Unfortunately, it also lacks any advanced features such as support for HDR and wider color gamuts.
Decent monitor for media creation. The U2717D's decent brightness and acceptable color accuracy make it suitable for more casual production of movies of photography. Its decently high resolution is also quite useful. Unfortunately, its relatively low contrast and lack of support for wider color gamuts like DCI-P3 might make it less attractive to professionals.
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