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.
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.
The stand is slim but supports the monitor well.
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.
The borders are thin on three sides, great for a multi-monitor setup.
The HP OMEN X 27 is a bit thicker than most similar monitors we've tested.
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.
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.
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.
Good peak brightness, bright enough for most viewing environments. We measured peak brightness with our calibrated settings, and with local dimming enabled.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
There is very little color bleed on this monitor. The very slight bleed isn't noticeable with regular content.
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.
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.
|Mode||Response Time Chart||Motion Blur 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.
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.
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.
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.
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.
The 1440p resolution and 27 inch screen are great for most uses.
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.
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.
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.
|OMEN X 25f||25"||240Hz||FHD(1920x1080)|
|OMEN X 27||27"||240Hz||QHD(2560x1440)|
|OMEN 35" Curve||35"||100Hz||WQHD(3440x1440)|
The HP OMEN X 27 we tested was manufactured in July 2019.
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.
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.
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.
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.
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.
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.
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.
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.
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.