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Reviewed on Oct 22, 2019

HP OMEN X 27 MONITOR REVIEW

Usage Ratings - Version 1.0
7.5
Mixed Usage
7.1
Office
8.3
Gaming
7.4
Multimedia
7.4
Media Creation
6.7
HDR Gaming
Size : 27"
Resolution : 2560x1440
Refresh Rate : 240 Hz
LCD Type
:
TN
Variable Refresh Rate
:
FreeSync

The HP OMEN X 27 is a good 1440p monitor with great gaming performance. It has an impressive 240Hz refresh rate and an outstanding response time, resulting in exceptionally clear motion with no noticeable motion artifacts. It also has excellent low input lag, for an extremely responsive gaming experience.

Unfortunately, it isn't very versatile as, like most TN monitors, the image degrades when viewed at an angle, and it has a low contrast and bad black uniformity. This monitor also has a limited range of ergonomic adjustments, so it might be difficult to place in an ideal viewing position.

Test Results
Design 8.0
Picture Quality 6.7
Motion 9.4
Inputs 9.1
Pros
  • Outstanding response time.
  • Excellent low input lag.
Cons
  • Image degrades at an angle.
  • Low contrast ratio.

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8.0

Design

Curved : No
Curve radius : Not Curved
Weight (without stand)
:
9.9 lbs (4.5 kg)
Weight (with stand)
:
14.6 lbs (6.6 kg)

The HP OMEN X 27 has a great design. It looks almost identical to the other OMEN monitors we've tested, including the HP OMEN 27, and the HP OMEN X 25f. It has a clean look, with a slim stand that supports the monitor well, and it has outstanding build quality. The stand has a good height adjustment range and great tilt range, but it can't swivel, and can't be rotated to portrait orientation.

Stand
Width
:
10.3" (26.2 cm)
Depth
:
10.3" (26.2 cm)

The stand is slim but supports the monitor well.

5.1 Ergonomics
Height Adjustment
:
5.2" (13.2 cm)
Switch portrait/landscape : No
Swivel Range : N/A
Tilt Range : -20° to 5°

The stand has a good height adjustment range and a great tilt range. It can't swivel, and can't be rotated to portrait orientation, though, which might disappoint some users.

Back
Wall Mount : VESA 100x100

The back of the HP OMEN X 27 looks identical to the other OMEN monitors we've tested. It has a clean look, but only basic cable management. There's a quick-release on the back, and it can be VESA mounted using the included mounting bracket.

Borders
Borders
:
0.3" (0.8 cm)

The borders are thin on three sides, great for a multi-monitor setup.

Thickness
Thickness (with stand)
:
7.5" (19.1 cm)
Thickness (without stand)
:
3.8" (9.7 cm)

The HP OMEN X 27 is a bit thicker than most similar monitors we've tested.

8.5 Build Quality

Just like the HP OMEN 27 and the HP OMEN X 25f, the HP OMEN X 27 has excellent build quality. The stand is made of metal and feels well-built, and although the panels are made of plastic, they have a premium feel to them.

6.7

Picture Quality

The HP OMEN X 27 has decent picture quality. Like all TN monitors, it has a low contrast ratio, so blacks look gray in a dark room, and it has bad black uniformity. On the other hand, the HP OMEN X 27 has good peak brightness in SDR and great reflection handling, so glare shouldn't be an issue, and it has an outstanding SDR color gamut and excellent gradient handling.

5.6 Contrast
Native Contrast
:
798 : 1
Contrast with local dimming
:
831 : 1

Like most TN monitors, the HP OMEN X 27 has mediocre contrast. This causes blacks to look gray and is especially noticeable in a dark room. Unfortunately, the local dimming feature is ineffective at noticeably improving contrast.

3.0 Local Dimming
Local Dimming
:
Yes
Backlight
:
Edge

The optional local dimming feature is bad, but it isn't as bad as most monitors we've tested. It does a good job dimming dark areas on the screen, but due to the limited number of zones, it can only dim relatively large portions of the screen. Some transitions are slow, causing a glowing trail behind fast-moving objects.

7.5 SDR Peak Brightness
SDR Real Scene
:
298 cd/m²
SDR Peak 2% Window
:
306 cd/m²
SDR Peak 10% Window
:
306 cd/m²
SDR Peak 25% Window
:
306 cd/m²
SDR Peak 50% Window
:
306 cd/m²
SDR Peak 100% Window
:
306 cd/m²
SDR Sustained 2% Window
:
306 cd/m²
SDR Sustained 10% Window
:
306 cd/m²
SDR Sustained 25% Window
:
306 cd/m²
SDR Sustained 50% Window
:
305 cd/m²
SDR Sustained 100% Window
:
306 cd/m²
SDR ABL
:
0.000

Good peak brightness, bright enough for most viewing environments. We measured peak brightness with our calibrated settings, and with local dimming enabled.

6.2 HDR Peak Brightness
HDR Real Scene
:
312 cd/m²
HDR Peak 2% Window
:
332 cd/m²
HDR Peak 10% Window
:
327 cd/m²
HDR Peak 25% Window
:
327 cd/m²
HDR Peak 50% Window
:
329 cd/m²
HDR Peak 100% Window
:
329 cd/m²
HDR Sustained 2% Window
:
332 cd/m²
HDR Sustained 10% Window
:
327 cd/m²
HDR Sustained 25% Window
:
327 cd/m²
HDR Sustained 50% Window
:
328 cd/m²
HDR Sustained 100% Window
:
329 cd/m²
HDR ABL
:
0.001

Unfortunately, the HP OMEN X 27 has mediocre peak brightness in HDR. Small, bright objects in some scenes don't stand out the way they should. We measured HDR peak brightness with the 'HDR Standard' mode, with local dimming enabled, before calibration.

5.5 Horizontal Viewing Angle
Color Shift from Left
:
31 °
Color Shift from Right
:
33 °
Brightness from Left
:
52 °
Brightness from Right
:
52 °
Black Level from Left
:
28 °
Black Level from Right
:
27 °
Curve Radius : N/A

Unfortunately, like all TN monitors, the image degrades noticeably when viewed at an angle. This isn't a great choice for co-op gaming. If viewing angles are important for you, an IPS monitor like the LG 27GL850-B is a better choice.

5.7 Vertical Viewing Angle
Color Shift from Below
:
9 °
Color Shift from Above
:
54 °
Brightness from Below
:
15 °
Brightness from Above
:
66 °
Black Level from Below
:
16 °
Black Level from Above
:
25 °

Like all TN monitors, the image degrades noticeably when viewed at an angle. Even sitting close to the screen, the top and bottom can appear non-uniform.

7.7 Gray Uniformity
50% Std. Dev.
:
5.658 %
50% DSE
:
0.124 %
5% Std. Dev.
:
2.097 %
5% DSE
:
0.075 %

The HP OMEN X 27 has good gray uniformity. The sides and top of the screen are a bit darker than the rest, but this isn't very noticeable with most content.

3.2 Black Uniformity
Native Std. Dev.
:
3.165 %
Std. Dev. w/ L.D.
:
8.823 %

Unfortunately, this monitor has bad black uniformity. There is significant clouding throughout the screen, but very little backlight bleed, which is good. The local dimming feature is effective at dimming some areas of the screen, but due to the limited number of zones, it can't dim very tightly around the test cross.

6.8 Pre Calibration
Picture Mode
:
Gaming
Luminance
:
247 cd/m²
Luminance Settings
:
70
Contrast Setting
:
80
RGB controls
:
228-245-244
Color Temperature
:
6054 K
White Balance dE
:
3.84
Color dE
:
3.32
Gamma
:
2.28

Decent accuracy out of the box. Gamma is above the sRGB target curve, so almost all scenes are darker than they should be. There are a few inaccuracies in shades of gray and a few colors, but most people won't notice this.

9.6 Post Calibration
Picture Mode
:
Gaming
Luminance
:
99 cd/m²
Luminance Settings
:
25
Contrast Setting
:
75
RGB Controls
:
216-234-243
Color Temperature
:
6453 K
White Balance dE
:
0.66
Color dE
:
0.42
Gamma
:
2.17

After calibration, the HP OMEN X 27 has outstanding accuracy. Gamma follows the target curve almost perfectly, and there are no noticeable inaccuracies in any colors or shades of gray.

You can download our ICC profile calibration here. This is provided for reference only and should not be used, as the calibration values vary per individual unit even for the same model due to manufacturing tolerances.

9.0 SDR Color Gamut
sRGB xy
:
100.0 %
Adobe RGB xy
:
79.9 %

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

Excellent SDR color gamut, with perfect coverage of the most commonly used sRGB color space. This monitor also has very good coverage of the wider Adobe RGB color space, which is mainly used for professional photo editing.

9.0 SDR Color Volume
sRGB in ICtCp
:
96.3 %
Adobe RGB in ICtCp
:
84.3 %

s.RGB Picture Mode: Gaming
Adobe RGB Picture Mode: Gaming

Excellent SDR color gamut. It can't display dark, saturated colors very well, and like almost all LED monitors, it can't displays very bright blues.

6.4 HDR Color Gamut
Wide Color Gamut
:
Yes
DCI P3 xy
:
66.2 %
Rec. 2020 xy
:
61.2 %

DCI P3 Picture Mode: HDR Standard
Rec. 2020 Picture Mode: HDR Standard

Mediocre HDR color gamut. It can display a wide color gamut, but it has only decent coverage of the DCI P3 color space used by the majority of today's HDR content.

6.0 HDR Color Volume
DCI-P3 in ICtCp
:
59.6 %
Rec. 2020 in ICtCp
:
61.0 %

DCI P3 Picture Mode: HDR Standard
Rec. 2020 Picture Mode: HDR Standard

Sub-par HDR color volume. It's limited by the low native contrast ratio and limited HDR color gamut.

10 Image Retention
IR after 0 min recovery
:
0.00 %
IR after 2 min recovery
:
0.00 %
IR after 4 min recovery
:
0.00 %
IR after 6 min recovery
:
0.00 %
IR after 8 min recovery
:
0.00 %
IR after 10 min recovery
:
0.00 %

There are no signs of temporary image retention on the HP OMEN X 27, even immediately after displaying our high-contrast, static test image for 10 minutes.

8.8 Gradient
Color Depth
:
8 Bit

Excellent gradient handling. There is some noticeable banding, mainly due to this display's 8-bit color gamut. Although it supports HDR, it can't display 10-bit colors.

9.5 Color Bleed
Pixel row error
:
0.000 %
Pixel column error
:
0.109 %

There is very little color bleed on this monitor. The very slight bleed isn't noticeable with regular content.

8.0 Reflections

This monitor has great reflection handling. This is great for use in a bright room, and glare shouldn't be an issue for most people.

9.4

Motion

The HP OMEN X 27 has excellent motion handling. It has an outstanding response time, resulting in extremely clear motion with almost no noticeable blur behind fast-moving objects. It also has an outstanding refresh rate, and it supports FreeSync variable refresh rate technology. Unfortunately, the backlight isn't flicker-free, but the flicker frequency is extremely high and shouldn't bother most people.

10 Motion Blur
80% Response Time
:
2.3 ms
100% Response Time
:
5.9 ms
Best Overdrive Setting
:
Level 2

Mode Response Time Chart Motion Blur Photo
Level 1 Chart Photo
Level 2 Chart Photo
Level 3 Chart Photo
Level 4 Chart Photo

The HP OMEN X 27 has an incredibly fast response time, resulting in clear motion with almost no blur behind fast-moving objects, and no noticeable motion artifacts. There are four overdrive settings; we recommend 'Level 2', as it delivers the fastest response time with almost no overshoot. Level 3 is slightly faster, with an 80% response time of 1.9ms and a 100% response time of 4.6ms, but there is some overshoot, causing noticeable ghosting in some transitions. Level 4 has significant overshoot in many transitions, and we don't recommend it.

7.5 Image Flicker
Flicker-free : No
PWM Dimming Frequency
:
>1000 Hz
Black Frame Insertion (BFI)
:
No
BFI Maximum Frequency
:
N/A
BFI Minimum Frequency
:
N/A

The backlight is nearly flicker-free at all brightness levels. Below max brightness, the backlight flickers, but it's at an extremely high frequency and doesn't cause any motion artifacts, and shouldn't bother anyone. Unlike the HP OMEN 27, there is no optional black frame insertion feature.

9.6 Refresh Rate
Native
:
240 Hz
Factory Overclock
:
N/A
Variable Refresh Rate
:
FreeSync
G-SYNC Compatible
:
Yes
VRR Maximum
:
240 Hz
VRR Minimum
:
< 20 Hz
VRR Maximum With OC
:
N/A
VRR Supported Connectors : DisplayPort, HDMI

The HP OMEN X 27 has an outstanding refresh rate, and it supports AMD's FreeSync variable refresh rate technology. The full 240Hz refresh rate and 1440p native resolution is only supported over DisplayPort. Over HDMI, the maximum refresh rate at 1440p is 144Hz. The 240Hz refresh rate over HDMI is only available at 1080p.

9.1

Inputs

The HP OMEN X27 has outstanding low input lag, delivering an extremely responsive gaming experience, great for even the most competitive gamers. The 2k native resolution and 27" screen is great for most uses. This monitor has a limited selection of inputs, though, with only a single HDMI port and a single DisplayPort connection.

9.5 Input Lag
Native Resolution
:
2.8 ms
Non-Native Res @ Native Refresh
:
N/A
Native Resolution @ 60 Hz
:
14.9 ms
Variable Refresh Rate
:
5.2 ms
10 bit HDR
:
6.4 ms
Black Frame Insertion (BFI)
:
N/A

The HP OMEN X 27 has outstanding low input lag, great for a responsive gaming experience. When gaming at the native refresh rate and resolution, the input lag is one of the lowest we've ever measured and is great for even the most demanding gamers. The 60Hz input lag is a bit higher than average, which might be disappointing for some console gamers.

8.4 Resolution and Size
Native Resolution : 2560 x 1440
Aspect Ratio : 16:9
Megapixels : 3.7 MP
Pixel Density : 109 PPI
Screen Diagonal : 27.0 inches
Screen Area : 310 sq inches

The 1440p resolution and 27 inch screen are great for most uses.

Inputs
Total Inputs
DisplayPort : 1 (DP 1.4)
Mini DisplayPort : No
HDMI : 1 (HDMI 2.0)
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
Power Supply : External Brick

Features

The HP OMEN X 27 has very few additional features. It has a few optional overlays, including virtual crosshairs and a frame counter, and it has an ambient lighting feature. The OSD is much nicer than the previous OMEN monitors we've tested, but it isn't as easy to navigate, as it doesn't have a directional joystick.

Additional Features
Speakers
:
No
HDR10 : Yes
Multiple input display
:
No

The HP OMEN X 27 has a few additional features. There's a down-facing RGB ambient lighting feature, and you can choose from a few different effects. Like many gaming monitors, there's an optional aim assist virtual crosshair function, as well as a frame counter overlay.

These additional features can be enabled directly through the monitor's on-screen display, or through HP's OMEN Command Center software.

On-Screen Display (OSD)
Controls

The controls are nearly identical to the HP OMEN 27. Unfortunately, they aren't as easy to use as the joystick on the HP OMEN X 25f.

In The Box

  • Manual
  • USB-A to USB-B Cable
  • VESA Screws
  • Power Cable
  • Power Adapter
  • DisplayPort Cable
  • HDMI Cable
  • VESA Mounting Adapter

Differences between Sizes and Variants

We tested the 27" OMEN X 27. There are a few other sizes in HP's OMEN X lineup, some of which are listed below, but as they have different specifications, our review isn't representative.

If someone comes across a different type of panel or if their HP OMEN X 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.

This monitor should not be confused with the HP OMEN 27 (non-'X'), which has a slower refresh rate.

Model Size Refresh rate Resolution
OMEN X 25f 25" 240Hz FHD(1920x1080)
OMEN X 27 27" 240Hz QHD(2560x1440)
OMEN 27 27" 144Hz QHD(2560x1440)
OMEN 35" Curve 35" 100Hz WQHD(3440x1440)

The HP OMEN X 27 we tested was manufactured in July 2019.

Compared to other Monitors

The HP OMEN X 27 is a great gaming monitor, with an extremely fast response time and low motion blur. It isn't very versatile, though, due to its low native contrast and limited ergonomics. See also our recommendations for the best 1440p gaming monitors, the best 27 inch monitors, and the best FreeSync monitors.

HP OMEN 27
SEE PRICE
Amazon.com

The HP OMEN X 27 is a bit better than the HP OMEN 27. The 'X' version has a higher native refresh rate and it supports HDR. The non-'X' version supports G-SYNC instead of FreeSync, and it has an optional black frame insertion feature.

Acer Nitro XF252Q
SEE PRICE
Amazon.com

The HP OMEN X 27 is slightly better than the Acer Nitro XF252Q for most uses, but the Acer is slightly better for gaming. The HP has a larger, higher-resolution screen, making it a better choice for multitasking. The XF252Q has much better ergonomics and an optional black frame insertion feature.

HP OMEN X 25f
Unavailable
Amazon.com

The HP OMEN X 27 is better than the HP OMEN X 25f. The 27 inch model has a higher native resolution and larger screen, and it supports HDR, although this doesn't add much.

ASUS VG279Q
SEE PRICE
Newegg.com

The ASUS VG279Q is better than the HP OMEN X 27. The VG279Q has much better ergonomics, better viewing angles, and an optional black frame insertion feature. The OMEN X has a higher refresh rate and a higher native resolution, and it supports HDR, although this doesn't add much.

7.5 Mixed Usage

The HP OMEN X 27 is a good monitor for most uses. It's a great gaming monitor, with low input lag and a fast response time. The 27 inch, 1440p screen is great for watching videos or working, and it has great reflection handling. Unfortunately, the image degrades at an angle and it has limited ergonomics.

7.1 Office

Decent monitor for office use. The 27 inch, 1440p screen is great for multitasking, and it has excellent low input lag. Unfortunately, the image degrades when viewed at an angle, and it has a limited range of ergonomic adjustments.

8.3 Gaming

This is a great gaming monitor. It has an extremely fast response time and fast refresh rate, resulting in clear motion with very little blur. It also has impressive low input lag, and it supports FreeSync, for a nearly tear-free gaming experience. Unfortunately, it has limited ergonomics, so it might be difficult to place in an ideal viewing position.

7.4 Multimedia

Decent monitor for multimedia. The 27 inch, 1440p screen is great for watching videos, and it has impressive low input lag. The HP OMEN X27 has great reflection handling and good SDR peak brightness, so glare shouldn't be an issue. Unfortunately, the image degrades at an angle, so it isn't great for watching videos with a group of friends, and it doesn't look as good in a dark room.

7.4 Media Creation

The HP OMEN X 27 is a decent monitor for media creation. The 27 inch, 1440p screen allows you to see more of your project at once, and it has outstanding low input lag. Unfortunately, the image degrades at an angle, and it has a limited range of ergonomic adjustments.

6.7 HDR Gaming

This is a decent monitor for gaming in HDR, mainly due to its great gaming performance. It has outstanding low input lag and an outstanding response time. Unfortunately, it has a low contrast ratio, bad black uniformity, and the local dimming feature isn't very effective. Although it can display a wide color gamut, it can't get very bright in HDR.

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