Preferred monitor store
Reviewed on Sep 06, 2018 , Ian Cumming, Yannick Khong

HP OMEN 27
MONITOR REVIEW

Usage Ratings - Version 1.0

Test Benches: test

  • 1.0: Fall 2017
7.3
Mixed Usage
Score components:
  • 30% Office
  • 30% Multimedia
  • 25% Gaming
  • 10% Media Creation
  • 5% HDR Gaming
Size : 27 "
Resolution : 2560x1440
Refresh Rate : 144 Hz
LCD Type
What it is: Type of LCD technology used by the monitor.
When it matters: Different technologies have different viewing angle properties.
:
TN
Variable Refresh Rate
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.
:
G-Sync

The HP OMEN 27 is an LCD QHD monitor with a TN panel. It has decent picture quality and is more suitable for brighter environments as it can get bright and can handle reflections well. It has excellent motion handling with support for G-Sync variable refresh rate and black frame insertion to improve motion quality and clarity. Unfortunately, the best picture is reserved for those sitting right in front, and the low native contrast ratio along with the bad black uniformity make dark room performance disappointing.

Test Results
Design 8.0
Picture Quality 6.2
Motion 9.4
Inputs 9.0
Pros
  • Excellent refresh rate and gaming features
  • Very low input lag
Cons
  • Terrible black uniformity
  • Poor ergonomics

Check Price

8.0

Design

Score components: Subjectively assigned
HP OMEN 27 Design Picture
Curved : No
Curve radius : N/A
Weight (without stand) : 9.5lbs (4.3 kg)
Weight (with stand) : 14.2lbs (6.4 kg)

The design of the HP OMEN 27 is good. The stand provides the monitor with stability and the entire construction feels sturdy. The ergonomics will give you some trouble until you are able to position the monitor to your liking, and the thickness of the monitor, when placed on its stand, will not allow you to place it too close to the wall.  The monitor has a neat LED light feature to create a nice ambiance.

Stand
HP OMEN 27 Stand picture
Width : 10.3" (26.0 cm)
Depth : 10.3" (26.0 cm)

The stand is metallic, heavy and very sturdy and supports the monitor well, but does allow some wobbling.

5.0 Ergonomics
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:
  • 46% Height Adjustment
  • 18% Switch portrait/landscape
  • 18% Swivel Range
  • 18% Tilt Range
HP OMEN 27 Ergonomics picture
Height Adjustment : 5.2" (13.1 cm)
Switch portrait/landscape : No
Swivel Range : N/A
Tilt Range : -20° to 5°

The ergonomics of this monitor are poor as it cannot swivel or rotate. It can, however, be easily positioned to the height of your liking, and be tilted so as to face you directly.

Back
HP OMEN 27 Back picture
Wall Mount : VESA 100x100

The back of the monitor is plastic but feels more premium. There is a vent along the top edge to help dissipate heat. The stand has a hook at the top for your headphones and a loop near the base that helps cable management.

Borders
HP OMEN 27 Borders picture
Borders : 0.3" (0.8 cm)

The border around the monitor is metallic with average thickness and a very thin bezel. The screen has a small gap between the bezel and where the pixels start. This is similar to other monitors we've tested like HP 22CWA.

Thickness
HP OMEN 27 Thickness picture
Thickness (with stand) : 7.3" (18.6 cm)
Thickness (without stand) : 3.8" (9.5 cm)

The monitor looks thick when attached to its stand. If you wish to VESA mount it, you must first attach the included VESA adaptor. The adapter attaches to the monitor using the same metal mounting socket that the monitor uses to attach to the stand (shown here). Unfortunately, when you attach the adapter, the entire setup is quite thick and the monitor still protrudes quite a lot from the VESA mount.

8.5 Build Quality
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
HP OMEN 27 Build Quality picture

Excellent build quality. The whole construction feels robust and the metallic stand and border give it a premium feel. There are no gaps in the monitor and you should have no issues with it.

Mediocre picture quality on this HP OMEN 27. The disappointing contrast, terrible black uniformity, and bad viewing angles make this monitor a poor choice for darker environments or for viewing from the side. On the other hand, the great brightness, very good reflection handling, and excellent color gamut make this monitor's picture quality more suitable for brighter rooms.

5.5 Contrast
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:
HP OMEN 27 Checkerboard Picture
Native Contrast
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
:
755 : 1
Contrast with local dimming
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

The OMEN has a disappointing native contrast. This is expected for a monitor with a TN panel. Its native contrast is very similar to that of ASUS PB277Q and it is in the middle of the list of TN monitors.

0 Local Dimming
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
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
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.
:
Edge

The HP OMEN 27 does not have a local dimming feature. The video is for reference only.

8.2 SDR Peak Brightness
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
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.
:
399 cd/m²
SDR Peak 2% Window
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
:
424 cd/m²
SDR Peak 10% Window
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
:
421 cd/m²
SDR Peak 25% Window
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.
:
419 cd/m²
SDR Peak 50% Window
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.
:
418 cd/m²
SDR Peak 100% Window
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.
:
417 cd/m²
SDR Sustained 2% Window
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.
:
422 cd/m²
SDR Sustained 10% Window
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.
:
420 cd/m²
SDR Sustained 25% Window
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.
:
418 cd/m²
SDR Sustained 50% Window
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.
:
417 cd/m²
SDR Sustained 100% Window
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.
:
416 cd/m²
SDR ABL
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 SDR Peak brightness of this HP OMEN 27 monitor is great. The monitor is suitable for brighter rooms as it can fight glare and its brightness is consistent among the bright window sizes. It is one of the highest brightness levels we have measured so far, similar to other TN monitors like the Acer GN246HL or the Dell S2417DG.

0 HDR Peak Brightness
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.

5.2 Horizontal Viewing Angle
What it is: Color accuracy when viewed from the side.
HP OMEN 27 Horizontal Color Shift Picture
Color Shift from Left
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°
:
30 °
Color Shift from Right
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°
:
29 °
HP OMEN 27 Horizontal Brightness Picture
Brightness from Left
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°
:
46 °
Brightness from Right
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 °
HP OMEN 27 Horizontal Black Level Picture
Black Level from Left
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°
:
28 °
Black Level from Right
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°
:
24 °
Curve Radius : N/A

TN monitors are notorious for their bad viewing angles, so the disappointing performance of the HP OMEN 27 is no surprise. At a few degrees off center, the black level raises and the image turns grayish, while a few degrees more and the colors start to shift. This is a very similar behavior to the ASUS VG248QE which also has a TN panel.

6.3 Vertical Viewing Angle
What it is: Color accuracy when viewed from the top or bottom.
HP OMEN 27 Vertical Color Shift Picture
Color Shift from Below
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°
:
10 °
Color Shift from Above
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°
:
34 °
HP OMEN 27 Vertical Brightness Picture
Brightness from Below
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°
:
14 °
Brightness from Above
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°
:
41 °
HP OMEN 27 Vertical Black Level Picture
Black Level from Below
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°
:
28 °
Black Level from Above
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°
:
51 °

The situation is slightly better with the vertical viewing angles. When you look from above the monitor keeps its image quality for slightly higher off-center angles. However, when you look from below the image loses accuracy at very small angles. This causes the top edge of the screen to look darker when you sit close to the screen.

This is one of the best results for TN monitors we've tested so far, second only to Dell S2417DG.

7.7 Gray Uniformity
What it is: Evenness of colors onscreen (not just gray).
When it matters: Solid colors. Sports, panning shots.
Score components:
HP OMEN 27 50% Uniformity Picture
50% Std. Dev.
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%
:
6.59 %
50% DSE
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%
:
0.117 %
HP OMEN 27 5% Uniformity Picture
5% Std. Dev.
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%
:
1.361 %
5% DSE
What it is: High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Dark scenes.
Good value: < 0.116%
:
0.067 %

The HP OMEN 27 has good gray uniformity, especially in the darker gray shades. There are some obvious uniformity issues but it is unlikely that you will spot any dirty screen effect. The image shows the top edge darker than the rest of the screen. This is because of the bad viewing angle from below, rather than a uniformity issue. This behavior is very similar to the Dell S2417DG.

2.6 Black Uniformity
What it is: Evenness of blacks.
When it matters: Dark scenes viewed in a dark room.
Score components:
HP OMEN 27 Native Black Uniformity Picture
Native Std. Dev.
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.
:
4.254 %
Std. Dev. w/ L.D.
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

Bad black uniformity. One of the worst black uniformity performances we have tested so far and the worst among TN panels just after Dell S2417DG. Backlight bleed is evident everywhere in the screen.

8.3 Pre Calibration
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:
HP OMEN 27 Pre Calibration Picture HP OMEN 27 Pre Gamma Curve Picture HP OMEN 27 Pre Color Picture
Picture Mode
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 RGB
Luminance
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.
:
427 cd/m²
Luminance Settings
What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
100
Contrast Setting
What it is: The monitor contrast setting, usually ranging from 0 to 100.
:
100
RGB controls
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
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
:
6474 K
White Balance dE
What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all video.
Good value: < 3
Noticeable difference: 1
:
1.57
Color dE
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
2.85
Gamma
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
:
2.2

Great out of the box color accuracy for the HP OMEN 27. The Picture mode that we used is 'Custom RGB' since it allows for changing the white balance. However, the 'Native', 'Custom RGB', 'Gaming - Racing' and 'Gaming - FPS' Picture modes were all nearly identical out of the box.

The out of the box white balance dE is well below our threshold of 3, so it is very hard to spot the gray inaccuracies. The Color dE is also below our threshold of 3, but in this case, color inaccuracies will be easier to spot, although most people still won't notice them. The color temperature is very close to our target of 6500 K, and the average gamma is spot on our 2.2 target, although the curve does not quite follow our target curve. Dark shades look slightly darker whereas brighter colors are a little over saturated.

9.6 Post Calibration
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:
HP OMEN 27 Post Calibration Picture HP OMEN 27 Post Gamma Curve Picture HP OMEN 27 Post Color Picture
Picture Mode
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 RGB
Luminance
What it is: The luminance at which the calibration was executed. We aim for a luminance level of 100 cd/m².
:
102 cd/m²
Luminance Settings
What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
7
Contrast Setting
What it is: The monitor contrast setting, usually ranging from 0 to 100.
:
100
RGB controls
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.
:
100-100-98
Color Temperature
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
:
6437 K
White Balance dE
What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all videos.
Good value: < 3
Noticeable difference: 1
:
0.5
Color dE
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
0.71
Gamma
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
:
2.17

Excellent color accuracy post calibration for the HP OMEN 27, similar to the Dell S2716DG. The white balance dE and the color dE were brought down to below 1 and thus color inaccuracies are almost impossible to spot. The gamma curve now follows our target curve more closely even though the average value is slightly off our 2.2 target.

Note: The contrast wasn't listed in the OSD, but it was changeable via DDC.

You can download our ICC profile calibration here.

8.6 SDR Color Gamut
What it is: The palette of colors the monitor can display
When it matters: General content consumption or production
Score components:
HP OMEN 27 Color Gamut s.RGB Picture
s.RGB xy
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%
:
96.4 %
HP OMEN 27 Color Gamut ARGB Picture
Adobe RGB xy
What it is: Coverage of the Adobe RGB colorspace on CIE 1931 xy.
When it matters: Professional photography.
Good value: > 90%
Noticeable difference: 5%
:
75.8 %

s.RGB Picture Mode: Custom RGB (calibrated)
Adobe RGB Picture Mode: Custom RGB

Excellent coverage of the s.RGB colorspace for the HP OMEN 27. On the other hand, the wider Adobe RGB colorspace used by professionals in graphics and publishing has limited coverage which might not be enough for those editing photos in the Adobe RGB color space.

8.6 SDR Color Volume
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:
HP OMEN 27 s.RGB Color Volume ITP picture
s.RGB in ICtCp
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
:
94.0 %
HP OMEN 27 Adobe RGB Color Volume ITP Picture
Adobe RGB in ICtCp
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
:
78.4 %

s.RGB Picture Mode: Custom RGB
Adobe RGB Picture Mode: Custom RGB

Excellent coverage of the s.RGB color volume mainly due to the excellent color gamut. On the contrary, the coverage of the Adobe RGB color volume that is used in the publishing media is not enough for those professionals out there.

0 HDR Color Gamut
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
What it is: Whether the monitor can support wider color gamuts
When it matters: HDR content and media creation
:
No
DCI P3 xy
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
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
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
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
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
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.
HP OMEN 27 Image Retention Picture
IR after 0 min recovery
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
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
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
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
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
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 %

No image retention is visible on this monitor. Even after 10 minutes of a high contrast static image, no retention is visible.

6.8 Gradient
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
HP OMEN 27 Gradient Picture
Color Depth
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

Even though the overall gradient performance is decent, this HP OMEN 27 has banding in most dark colors. This is the worst performance of all the monitors we've tested until now.

9.7 Color Bleed
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:
HP OMEN 27 Color bleed horizontal
Pixel row error
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 %
HP OMEN 27 Color bleed vertical
Pixel column error
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%
:
0.056 %

Excellent score in our color bleed test for the HP OMEN 27. There is some minor color bleeding when the monitor displays large areas of uniform color. In our test, this is depicted in the vertical columns image.

8.0 Reflections
What it is: How much light is reflected by the TV.
When it matters: Bright rooms.
Score components: Subjectively assigned
HP OMEN 27 Average room HP OMEN 27 Average room off picture HP OMEN 27 Bright room off picture

The HP OMEN 27 has good reflection handling. The monitor's matte filter diminishes small reflections well and diffuses stronger light sources across the screen. This might be an issue in rooms with large bright windows.

9.4

Motion

Score components:

Excellent motion handling for the HP OMEN 27. The monitor has a very fast response time and a very short motion blur. The monitor does not use PWM to reduce brightness but it has the option to introduce flicker if you want to make the image crisper. The refresh rate is 144Hz and can be boosted even higher, and that, combined with G-Sync support, will please most gamers.

10 Motion Blur
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:
HP OMEN 27 Motion Blur Picture HP OMEN 27 Response Time Chart
80% Response Time
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
:
2.3 ms
100% Response Time
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
:
5.9 ms
Best Overdrive Setting
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.
:
Level 3

Response Time Level 1
Response Time Level 2
Response Time Level 3
Response Time Level 4
Response Time Level 6

Excellent performace and almost instantaneous response time for the HP OMEN 27, just like the Dell S2716DG.

The best results were obtained with Response Time set at 'Level 3 (default)' where the monitor has a little overshoot but it's barely noticeable in person. This means that there is very liitle blur on the screen when you move the mouse quickly or you display other fast action.

9.4 Image Flicker
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
HP OMEN 27 Backlight Picture
Flicker-free : Yes
PWM Dimming Frequency
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)
What it is: Option to turn screen black between frames
When it matters: Reduces eye tracking blur in motion
Good value: Yes
:
Yes
HP OMEN 27 BFI Picture HP OMEN 27 BFI Frequency Picture
BFI Maximum Frequency
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
:
120 Hz
BFI Minimum Frequency
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
:
85 Hz

Excellent flicker performance on this HP OMEN 27, almost identical to Dell S2716DG. The backlight dims without flickering. There is some very small wobble but it shouldn't be visible.

The monitor has an option to introduce flicker to clear blur through NVIDIA ULMB which is the name of G-Sync's BFI implementation. The frequencies at which you can do it are: 120 Hz, 100 Hz and 85 Hz.

There is also a Pulse Width setting that changes the duration of each backlight pulse, similar to that of other G-Sync monitors like the Dell S2716DG. This makes motion appear even more clear but also decreases brightness even more.

There is more overshoot when BFI is enabled, and the overshoot cannot be reduced. You can see this in the BFI photo where there is more visible overshoot than the Response Time photo. You can not reduce overshoot as the Response Time section of the menu is disabled when BFI is on.

9.2 Refresh Rate
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
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
:
144 Hz
Factory Overclock
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
:
165 Hz
Variable Refresh Rate
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.
:
G-Sync
VRR Maximum
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
:
144 Hz
VRR Minimum
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
:
< 20 Hz
VRR Maximum With OC
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
:
165 Hz
VRR Supported Connectors : DisplayPort

Excellent performance of the HP OMEN 27 on our refresh rate test, at par with rival monitor Dell S2716DG. The monitor has a very fast refresh rate of 144Hz that can be boosted to 165Hz through the menu. It has a very good support of the G-Sync variable refresh rate and will keep those gamers with NVIDIA cards happy.

The HDMI port is limited to 60 Hz and has no G-Sync support.

9.0

Inputs

Score components:

The HP OMEN 27 has an excellent low input lag that can satisfy most competitive gamers. The QHD resolution is very good for a 27-inch monitor and will provide you with enough detail to work on. 

9.4 Input Lag
What it is: Delay between input and onscreen reaction.
When it matters: General usage of the mouse and gaming.
Native Resolution
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
:
4.5 ms
Non-Native Resolution
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
:
N/A
Native Resolution @ 60 Hz
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
:
12.2 ms
Variable Refresh Rate
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
:
5.2 ms
HDR
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)
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
:
10.7 ms

BFI Frequency Tested: 120 Hz

Over DisplayPort the only supported resolutions are 640x480, 800x600, 1024x768 and 2560x1440, and only 2560x1440 is capable of 144 Hz; this isn't usually a problem though because most graphics cards will upscale to 2560x1440 without you even knowing.

8.4 Resolution and Size
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 : 27.0 inches
Screen Area : 311 sq inches

The HP OMEN 27 has a great QHD resolution which allows it to display a good amount of detail on its 27-inch screen. This is the same as rival monitor Dell S2716DG.

Inputs
Total Inputs
DisplayPort : 1 (DP 1.2)
Mini DisplayPort : No
HDMI : 1 (HDMI 1.4)
DVI : No
VGA : No
DisplayPort Out : No
USB : 2 (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

Features

This monitor leaves you with mixed feelings regarding its features. On one hand it does not include any speakers or HDR10 support and unfortunately, the OSD is unintuitive and hard to use. On the other hand, there are some goodies hidden in the menus but they are not easy to find. The navigation buttons are also hidden out of sight and are hard to find, and their layout makes it difficult to tell them apart.

Additional Features
What it is: Additional features found on the monitor
Score components:
Speakers
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

Here are some monitor features that you might find useful:

  • Dark Boost: raises the black level to make dark details easier to see in games.
  • Ambient Lighting: The monitor has an LED light to illuminate the stand and create a nice ambiance.The Ambient Lighting system has multiple modes, as shown here.
    • Show average screen color
    • Show a preset color, or even enter your own RGB, as shown here.
    • Cycle between random colors on a timer
    • The brightness of the ambient light can also be changed.
  • 2 USB 3.0 ports: no fast charging.
  • A headphone out port: but no speakers.

On-Screen Display (OSD)
HP OMEN 27 OSD picture

The OSD is hard to use. The layout and naming can be confusing, the controls are unintuitive, and the highlighted entry jumps. Fortunately, once the monitor has been set up for the first time you won't need to browse the OSD all that often.

Controls
HP OMEN 27 Controls picture

The buttons are very hard to use as they're on the back of the monitor and they can't be seen from the front. You have to reach underneath the monitor blindly and since they're flush with the back of the monitor, they can be hard to find. Furthermore, the buttons are wide with little space separating them so they're hard to tell apart when you're reaching blindly. And this, of course, leads to pressing the wrong button fairly often. Not one of the better control schemes we've seen on monitors so far.

In The Box
HP OMEN 27 In The Box picture

  • Manual and drivers
  • VESA adaptor and screws
  • USB cable
  • HDMI cable
  • DisplayPort cable
  • Not shown: Power cable

Differences between Sizes and Variants

We tested the 27" model (OMEN 27). The other models shown in the table below have different specs and our review isn't representative of them.

If someone comes across a different type of panel or if their HP OMEN 27 doesn't correspond to our review, let us know and we will update the review. Note that some tests such as the gray uniformity may vary between individual units.

Model Size Refresh rate Resolution
OMEN 24.5 24.5" 144Hz FHD(1920x1080)
OMEN 27 27" 144Hz QHD(2560x1440)
OMEN QHD 32" 75Hz QHD(2560x1440)
OMEN 35" Curve 35" 100Hz WQHD(3440x1440)

The model we've tested was manufactured in August 2017.

Compared to other Monitors

HP OMEN 27 Group Shot Picture
Left: Samsung CHG70. Middle: HP OMEN 27. Right: ASUS ROG PG279Q.
Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The HP OMEN 27 is a monitor with excellent motion handling and very low input lag.

Dell S2716DG

The Dell S2716DG is a bit better than the HP OMEN 27 mainly due to the better ergonomics that allow you to position the monitor to your liking. Other than that, the two monitors perform very similarly.

ASUS ROG PG279Q

The ASUS ROG PG279Q is a significantly better monitor than the HP OMEN 27 in almost every usage. The ASUS has an IPS panel and thus better viewing angles than the TN panel HP. Also, the ASUS has better uniformity and better contrast ratio and this is great for many different usages.

AOC AGON AG271QX

The AOC AGON AG271QX is better than the HP OMEN 27. The AOC AGON AG271QX has better ergonomics and this is very useful no matter the usage. It also has better black uniformity that improves the quality of blacks in a dark room. On the other hand, the HP supports the black frame insertion feature that helps reduce blur during fast action. 

Samsung CHG70

The Samsung CHG70 is a much better monitor than the HP OMEN 27 in almost every usage. The Samsung has better contrast and overall better dark room performance. It also supports HDR and delivers better picture quality than the HP. The HP, on the other hand, has TN panel and a very fast pixel response time that leaves very small blur trail. Both monitors support variable refresh rate but through different implementations. The HP supports G-Sync whereas the Samsung supports FreeSync. So be careful to have a matching graphics card or gaming console.

Conclusion
SEE PRICE
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7.3Mixed Usage
Score components:
  • 30% Office
  • 30% Multimedia
  • 25% Gaming
  • 10% Media Creation
  • 5% HDR Gaming
The HP OMEN 27 is a decent monitor for mixed usage. The disappointing contrast and bad black uniformity in addition to the good brightness and great reflection handling make this monitor suitable for brighter rooms. Its great motion handling and low input lag make a good choice for gamers.
Decent performance for office use for this HP OMEN 27. The QHD resolution is very good for the 27" screen allowing you to display more detail. On the other hand, the viewing angles and the ergonomics of the monitor are not helping if you want to work side by side with your colleagues.
Very good gaming performance for the HP OMEN 27. This is mainly due to the very low input lag and fast pixel response time, along with the excellent motion handling with a high refresh rate and support for variable refresh rate and black frame insertion to clear blur. This monitor will please most hardcore gamers who are looking for great responsiveness along with smooth motion.
The OMEN 27 is a decent monitor for multimedia. The lack of good native contrast, the bad black uniformity, and the poor ergonomics do not make watching multimedia a great experience. If you plan to use this monitor for streaming movies in a dark room, you would be better off with a different monitor.
Decent performance of the HP OMEN 27 in media creation. The QHD resolution for the 27" inch screen area is good as it has enough detail. On the other hand, the viewing angles and bad ergonomics do not allow you to easily work with your colleagues. Finally, those in the professional media publishing should be aware that this monitor can not display the entire Adobe RGB color space.
HDR is not supported, and the monitor can't produce bright, saturated colors. If you are looking for HDR support then check out the Samsung CHG70.

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