Acer Predator XB271HU Monitor Review

Updated Mar 14, 2018 at 04:27 pm
Acer Predator XB271HU Picture
Usage Ratings - Version 1.0
Mixed Usage
Media Creation
HDR Gaming
Size 27"
Resolution 2560x1440
Refresh Rate 144 Hz
LCD Type
Variable Refresh Rate

The Acer Predator XB271HU is a very good high-end IPS-type gaming monitor. It features G-SYNC and a high 144 Hz refresh rate, making it exceptionally fluid and responsive. It has a decently wide viewing angle which helps keep it versatile and it also gets bright enough to fit most environments. Unfortunately, though, its overall picture quality leaves a lot to be desired due to its low contrast ratio and cloudy blacks.

Our Verdict

7.7 Mixed Usage

Good monitor for a mixed usage. The Acer Predator XB271HU is a well-rounded display that is a safe choice for those looking for a screen to use with multiple types of tasks. Its wide viewing angle makes it easy to share with others, and its gaming performance is class leading. Unfortunately, though, its overall picture quality could be a bit better.

See our Mixed Usage recommendations
7.8 Office

Very good monitor for office use. The Acer Predator XB271HU features an excellent stand with complete articulation making it easy to find a comfortable position. It offers a good amount of screen real-estate for productivity, and its wide viewing angle and rotating feature makes it powerful in a more communal working environment.

See our Office recommendations
8.5 Gaming

Remarkable gaming monitor. The Acer XB271HU's 144 Hz refresh rate, G-SYNC support, and excellent motion blur provide an exceptional gaming experience. Input lag is low, and it even sports a flicker (BFI) feature to further enhance motion clarity. Its only downside is its average picture quality, which mostly an issue for darker viewing environments.

See our Gaming recommendations
7.4 Multimedia

Decent monitor for consuming media. The Predator's excellent handling of motion and uniform screen make it a great choice for watching high-refresh rate content such as sports, but its low contrast and lack of HDR related features means its picture quality is only about average in a dark room.

See our Multimedia recommendations
7.6 Media Creation

The Acer XB271HU is a capable monitor for creating media. Its screen is uniform, and it is easily calibrated to track the s.RGB target almost perfectly. Unfortunately, though, it does not cover wide gamuts like Adobe RGB and DCI-P3, making it a bit limited for producing print and HDR content.

See our Media Creation recommendations
5.8 HDR Gaming

HDR is not supported, which is the same as most monitors available at the moment. For an HDR monitor, see the Samsung CHG70.

See our HDR Gaming recommendations
  • 7.7 Mixed Usage
  • 7.8 Office
  • 8.5 Gaming
  • 7.4 Multimedia
  • 7.6 Media Creation
  • 5.8 HDR Gaming
  • G-SYNC offers a great gaming experience
  • Wide viewing angle gives a variety of possible viewing positions
  • Low contrast means blacks look grey in a dark room
  • No HDR support

Check Price

27" Predator XB271HU

Test Results

Curved No
Curve radius N/A
Weight (without stand)
12.4 lbs (5.6 kg)
Weight (with stand)
17.6 lbs (8.0 kg)

The Acer Predator XB271HU is a good looking monitor with a fairly small and sleek stand. The red accents are striking, including the Predator logo on the front. There is a range of ergonomic adjustment options to fit any desk and some basic cable management down the back of the stand. The stand also feels stable and provides good support, which is great. The borders are quite thin, which is useful for multiple-monitor setups and the build quality is decent.

17.6" (44.7 cm)
10.6" (26.9 cm)

The stand of the Acer XB271HU is quite small and looks good with some red accents. It supports the monitor well and feels stable, despite the small footprint.

Height Adjustment
5.9" (15.0 cm)
Switch portrait/landscape Yes
Swivel Range -30° to 30°
Tilt Range -22.5° to 5°

There is quite a good range of ergonomic adjustment options available, which makes it easy to find a comfortable setup. The screen also rotates both directions to portrait, which is useful for those who would like the inputs/controls on one side or the other.

Wall Mount VESA 100x100

The rear of the monitor is quite basic but looks good. There is a hole in the back of the stand for cable management, as visible here. This is useful for keeping a tidy desk, free of cable clutter.

0.3" (0.8 cm)

The borders of the Acer XB271HU are quite thin. This not only looks good, but is more practical for small gaps in multiple-monitor setups.

Thickness (with stand)
8.7" (22.1 cm)
Thickness (without stand)
2.4" (6.1 cm)

The monitor appears a bit thick when viewed from the side, as the area where the components and inputs are located is quite bulky. It can still sit quite close to a wall, but does end up taking more desk space than some other designs such as the Dell S2716DG.

Build Quality

The build quality of the Acer Predator is quite good. The parts are all plastic but do feel well constructed.

Picture Quality
Picture Quality
Native Contrast
1055 : 1
Contrast with local dimming

The Acer XB271HU monitor has an average native contrast ratio, but it is in line with other IPS monitors. When viewed in a dark room, blacks are not deep and look more like gray than really black. If ambient light is present, the low contrast ratio effect is less noticeable though.

Picture Quality
Local Dimming
Local Dimming

The Acer Predator XB271HU does not have a local dimming feature. The video is for reference only.

Picture Quality
SDR Peak Brightness
SDR Real Scene
286 cd/m²
SDR Peak 2% Window
314 cd/m²
SDR Peak 10% Window
314 cd/m²
SDR Peak 25% Window
314 cd/m²
SDR Peak 50% Window
314 cd/m²
SDR Peak 100% Window
313 cd/m²
SDR Sustained 2% Window
314 cd/m²
SDR Sustained 10% Window
314 cd/m²
SDR Sustained 25% Window
314 cd/m²
SDR Sustained 50% Window
314 cd/m²
SDR Sustained 100% Window
313 cd/m²

The Acer Predator XB271HU is capable of reaching good levels of brightness, making it suitable for most viewing environments. Its constant brightness means the screen won't fluctuate in luminance depending on what's shown.

Picture Quality
HDR Peak Brightness
HDR Real Scene
HDR Peak 2% Window
HDR Peak 10% Window
HDR Peak 25% Window
HDR Peak 50% Window
HDR Peak 100% Window
HDR Sustained 2% Window
HDR Sustained 10% Window
HDR Sustained 25% Window
HDR Sustained 50% Window
HDR Sustained 100% Window

HDR is not supported.

Picture Quality
Horizontal Viewing Angle
Color Shift from Left
37 °
Color Shift from Right
36 °
Brightness from Left
46 °
Brightness from Right
47 °
Black Level from Left
75 °
Black Level from Right
75 °
Curve Radius N/A

Decent horizontal viewing angle. The monitor's reasonably wide viewing angle means no deterioration is visible when directly in front, and the screen remains usable to users sharing the screen on either side.

Picture Quality
Vertical Viewing Angle
Color Shift from Below
27 °
Color Shift from Above
25 °
Brightness from Below
34 °
Brightness from Above
32 °
Black Level from Below
75 °
Black Level from Above
75 °

Great vertical viewing angle. Moving your head up and down causes no visible shift in the image, and the Acer Predator XB271 remains usable when standing above it or while sitting below the screen.

Picture Quality
Gray Uniformity
50% Std. Dev.
3.048 %
50% DSE
0.125 %
5% Std. Dev.
0.398 %
5% DSE
0.043 %

The Acer Predator XB271HU has a great overall gray uniformity, which is beneficial for scenes with large uniform areas such as browsing the web, watching sports or playing games. The 50% gray uniformity looks great, with only small imperfections, like little vertical ripples and slightly darker sides. Overall, dirty screen effect is not noticeable.

Picture Quality
Black Uniformity
Native Std. Dev.
3.005 %
Std. Dev. w/ L.D.

The monitor has a poor black uniformity. As seen on our test picture, some clouding and flashlighting are visible near almost every edge of the display, which hurts the black uniformity considerably. This results in blotchy dark scenes, especially when viewed in a dark room.

Picture Quality
Pre Calibration
Picture Mode
306 cd/m²
Luminance Settings
Contrast Setting
RGB controls
Color Temperature
5925 K
White Balance dE
Color dE

Out of the box and when set on the most accurate picture mode, the monitor still has poor accuracy. The white balance dE and color dE are both well over what most enthusiasts would consider inaccurate. This is particularly noticeable while looking at the pre-color picture, where the white point is completely off target.

Picture Quality
Post Calibration
Picture Mode
100 cd/m²
Luminance Settings
Contrast Setting
RGB Controls
Color Temperature
6521 K
White Balance dE
Color dE

After calibration, which was done on the 'User' picture mode, the Acer Predator XB271HU is much more precise. The white balance and color accuracy are spot on and most of the issues are corrected, especially the white point, which now is right on target. Also, after calibration, the gamma is not tracking our 2.4 sRGB target.

You can download our ICC profile calibration here.

Picture Quality
SDR Color Gamut
sRGB xy
97.7 %
Adobe RGB xy
76.3 %

The Acer XB271HU has no issue covering the standard s.RGB colorspace, which is great for most uses. Its coverage of the Adobe RGB colorspace, however, is quite limited, making this monitor less useful for professional use.

Picture Quality
SDR Color Volume
sRGB in ICtCp
96.9 %
Adobe RGB in ICtCp
82.8 %

Good native color volume. The monitor has no issue filling up most of its native s.RGB colorspace. It does, however, have some difficulty reproducing very dark tones, mostly due to its limited contrast ratio.

Picture Quality
HDR Color Gamut
Wide Color Gamut
DCI P3 xy
Rec. 2020 xy

HDR gamuts are not supported.

Picture Quality
HDR Color Volume
DCI-P3 in ICtCp
Rec. 2020 in ICtCp

HDR color volumes are not supported.

Picture Quality
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 %

The Acer Predator XB271HU does not suffer from image retention, as even right after the 10 minutes burn-in scene, the screen is free of any image retention.

Picture Quality
Color Depth
8 Bit

Great performance for the Acer Predator on our gradient test. Beside the 8-bit banding, there is some little shade imperfection in the grayscale, but most of the rest of the gradient look good.

Picture Quality
Color Bleed
Pixel row error
0.000 %
Pixel column error
0.171 %

Some vertical color bleed is present, however, this won't be noticeable in most situations. It is visible in the vertical photo as different shades of gray above and below each color.

Picture Quality

The monitor is a bit more reflective than most monitors. This results in brighter and more distinct reflections which may be an issue in brighter rooms.

Motion Blur
80% Response Time
2.8 ms
100% Response Time
13.1 ms
Best Overdrive Setting

OD Off
OD Normal
OD Extreme

The Acer Predator XB271HU has a very fast response time, which is excellent when watching fast-paced content such as playing fast paced video games or watching sports. Pixel transition speed can be modified by changing the 'OD' (Overdrive) setting. We recommend using the 'Normal' setting for fast response with minimal overshoot, but if you are bothered by the lighter trails following moving objects caused by pixel transition overshoot, you should use the 'OD Off' setting. We don't recommend using 'OD Extreme', as it introduces significant and easily visible overshoot artifacts behind moving objects.

Image Flicker
Flicker-free Yes
PWM Dimming Frequency
0 Hz
Black Frame Insertion (BFI)
BFI Maximum Frequency
120 Hz
BFI Minimum Frequency
85 Hz

Like most monitors, the XB271HU doesn't flicker and shows each image for a full frame. Without flicker, motion appears smoother, but persistence blur is more visible (as even moving images are static for the full duration of each frame). However, it is possible to use Black Frame Insertion (BFI) to add flicker and help reduce persistence blur, but only with 120Hz, 100Hz and 85 Hz inputs. This is useful for first person shooters or other fast-paced games.

Refresh Rate
144 Hz
Factory Overclock
165 Hz
Variable Refresh Rate
G-SYNC Compatible
Yes (Native)
VRR Maximum
144 Hz
VRR Minimum
< 20 Hz
VRR Maximum With OC
165 Hz
VRR Supported Connectors DisplayPort

The monitor has a high native refresh rate of 144Hz, which can be overclocked up to 165Hz. This results in very smooth motion and a responsive feel. NVIDIA's G-Sync on this monitor can adjust the screen's refresh rate to match the frame rate of a compatible graphics card, which allows playing graphically-intensive games with significant framerate drops without tearing or stuttering. This is one of the best 144 hz monitors we've tested in 2018.

Input Lag
Native Resolution
4.6 ms
Non-Native Res @ Native Refresh
4.7 ms
Native Resolution @ 60 Hz
12.7 ms
Variable Refresh Rate
5.3 ms
10 bit HDR
Black Frame Insertion (BFI)
11.0 ms

Excellent low input lag, mostly due to the fast scan time of 144 Hz. The 60 Hz input lag is much higher, as is the input lag with ULMB (BFI) enabled at 120 Hz, but both are still fairly low. The G-sync input lag is only slightly higher than the native input lag, which is great.

Resolution and Size
Native Resolution 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 Acer XB271HU has a high QHD resolution and a large 27" diagonal, giving it lots of screen space while still having good pixel density and detail.

Total Inputs
DisplayPort 1 (DP 1.2)
Mini DisplayPort No
HDMI 1 (HDMI 1.4)
DisplayPort Out No
USB 2 (USB 3.0)
Analog Audio Out 3.5mm 1
Microphone In 3.5mm No
Digital Optical Audio Out No
Analog Audio Out RCA No
Power Supply Internal

Additional Features
HDR10 No
Multiple input display

It is possible to add a central crosshair to the Predator through the on screen menu, with the 'Aim Point' option.

On-Screen Display (OSD)

The controls are located on the bezel at the right of the monitor. They are quite easy to use and feel intuitive.

In The Box

  • Manual
  • HDMI Cable
  • USB Cable
  • DisplayPort Cable
  • 3 pin power cable

Differences Between Sizes and Variants

We tested the Acer Predator XB271HU bmiprz, which is 1440p IPS gaming monitor. There are many other variants of the Predator lineup which all support G-Sync but with different sizes, panel types, resolutions and refresh rates - a selection of which are listed in the table below.

If someone comes across a different type of panel or if their monitor 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 Panel Type Resolution Native Refresh
XB271HU bmiprz 27" IPS 1440p 144Hz
XB271HU Abmiprz 27" TN 1440p 144Hz
XB272 bmiprz 27" TN 1080p 240Hz
XB271HU bmiprz 27" IPS 4k 60Hz
XB281HK bmiprz 28" TN 4k 60Hz
XB321HK bmiphz 32" IPS 4k 60Hz

Compared to other monitors

Comparison picture

Left: Samsung CHG70. Middle: Acer Predator XB271HU. Right: AOC AGON AG271QX
Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The Acer Predator XB271HU is a high-end monitor with very good overall performance, especially for gaming (see our recommendations for the best gaming monitors). However, it is far from perfect, especially when viewed in a dark room. While it is a good jack-of-all-trades, for specific uses there may be other monitors to consider. See our recommendations for the best monitors.


The ASUS ROG PG279Q is better than the Acer Predator XB271HU. The ASUS has slightly better motion blur, which is great for gaming and comes with marginally better out-of-the-box color accuracy that is great for office use. Also, if you plan to use it for media creation, the better black uniformity of the ASUS makes it a better choice.

LG 27GL850-B

The LG 27GL850-B is better than the Acer Predator XB271HU. The LG supports HDR and can handle reflections better, which is important when there are a few lights in your room. The Acer, on the other hand, has a black frame insertion feature that helps make the image look crisper.

Dell S2716DGR/S2716DG

The Acer Predator XB271HU is a monitor that has good viewing angles and performs better in almost all uses than the Dell S2716DG. But if you sit directly in front of the monitor and want the fastest response time for gaming, and an image with minimal blur, get the Dell. The Acer Predator XB271HU has better gray uniformity so that you browse the web without any clouding on your screen. On the other hand, the Dell S2716DG has better reflection handling.

LG 32GK850G-B

These are two different types of monitors, each with advantages and disadvantages. The Acer Predator XB271HU has wider viewing angles and is a better choice if you'll be looking at the monitor from the side, like when you're collaborating with people. The Acer also has a better ergonomic stand that allows you to place it in a comfortable position with ease. The LG 32GK850G is larger, and so you can work more comfortably, and has a better dark room performance with blacks that are more deep and uniform than on the Acer.


The ASUS TUF VG27AQ is much better than the Acer Predator XB271HU. The TUF supports HDR and has a faster refresh rate that improves the appearance of motion. The TUF supports FreeSync for nearly tear-free gaming, while the Predator supports G-SYNC for the same purpose. The TUF has better reflection handling, which is great for a room with a few more lights, and can also display more uniform blacks in a dark room. However, neither of the two monitors can display deep blacks in a dark room due to their IPS panels.

Gigabyte Aorus AD27QD

The Gigabyte AD27QD is better than the Acer Predator XB271HU. The Gigabyte AD27QD supports HDR content and has a wide color gamut that can display rich and saturated colors. The Gigabyte AD27QD can handle reflections better and supports the FreeSync variable refresh rate technology for tear-free gaming. The Acer, on the other hand, has more uniform blacks and slightly better ergonomics. The Predator supports the G-SYNC variable refresh rate, which is great if you have a compatible NVIDIA graphics card.


The ASUS PG279QZ is somewhat better than the Acer Predator XB271HU. The ASUS PG279QZ has marginally better reflection handling, and it ships with a slightly better pre-calibration which is important for office users that usually don't calibrate their monitors.

LG 27GL83A-B

The LG 27GL83A-B is slightly better than the Acer Predator XB271HU. The LG has a significantly better color accuracy and gradient performance, and it supports HDR, while the Acer has much better ergonomics and has a black frame insertion feature to reduce motion blur. The Acer also has a better contrast ratio, but it can't get as bright as the LG.

Samsung CHG70

The Samsung CHG70 and the Acer Predator XB271HU have similar overall performance. They have different panel types, however, so each one is better than the other in different aspects. The Samsung CHG70 supports HDR and performs decently in that mode, and it also supports local dimming that makes blacks look deep in a dark room. The Samsung CHG70 has better reflection handling and a curve profile that some people like. The Acer Predator XB271HU, on the other hand, has better ergonomics so you can easily position it to your liking. The Acer has wider viewing angles due to its IPS panel, and thus it's easier to share your work.

Acer Nitro VG271

The Acer Predator XB271HU is slightly better than the Acer VG271 for most uses and is much better for gaming. The XB271HU has a much better stand, offering a full range of ergonomic adjustments, and it has better motion handling, with a slightly faster response time. The XB271HU also has a higher resolution screen, so you can see more fine details in your favorite games.

BenQ Zowie XL2540

The Acer Predator XB271HU is better than the BenQ Zowie XL2540. The Predator has a higher native resolution and larger screen, so you can see more fine details in games. The Predator also has wider viewing angles, which is especially important as the edges of the screen won't fade if you're sitting too close. While both support VRR, the Predator uses NVIDIA's G-SYNC technology, whereas the Zowie uses AMD's FreeSync technology.

Acer VG271UP

The Acer Predator XB271HU is slightly better than the Acer VG271UP. The Predator supports G-SYNC VRR, is much easier to position comfortably, and its black uniformity, albeit not good, is not terrible like the Asus. The Asus, on the other hand, supports HDR, though it doesn't add much, and has a little better reflection handling to minimize distractions.


These are two different types of monitors, each with their advantages and disadvantages. The Acer Predator XB271HU is a G-SYNC compatible monitor that has wider viewing angles, so the image remains accurate when viewed from the side. The Acer also has better ergonomics so you can position it to your liking with ease. If however, you have a dark room and sit straight in front, the FreeSync compatible AOC AGON AG271QX has more uniform blacks and a faster response time that leaves only a small blur trail behind fast-moving content.

Acer Predator X27

The Acer Predator X27 is better than the Acer Predator XB271HU. The X27 has a higher native resolution, so you can see more details, and it supports HDR. It displays a wider color gamut, great for professional users in print and marketing. The XB271HU has lower native input lag, great for gamers, and has an optional black frame insertion feature that can clear up motion.

Acer Predator XB273K

The Acer Predator XB273K is slightly better than the Acer Predator XB271HU. The XB273K has a higher resolution to display more details on your screen and supports HDR, great for HDR gaming. The XB271HU has a higher refresh rate, a BFI feature that helps improve the appearance of motion, and better ergonomics to help position it comfortably.

Dell S2719DGF

The Acer Predator XB271HU is better than the Dell S2719DGF. The Acer has better viewing angles, an optional black frame insertion feature, and better black uniformity. For gaming, it depends somewhat on your hardware, as the Acer supports G-SYNC variable refresh rate technology whereas the Dell supports FreeSync.

LG 27UK650-W

The LG 27UK650 is a bit better than the Acer Predator XB271HU. The LG 27UK650 is a 4k monitor that supports HDR. It supports FreeSync VRR, can get brighter than the Acer, and has better reflection handling. The Acer Predator, on the other hand, has better ergonomics and is easier to place comfortably. It has a lower input lag and supports G-SYNC VRR over a wider range of frequencies and can offer you a tear-free gaming experience.

Dell S2417DG

The Acer Predator XB271HU is marginally better than the Dell S2417DG. The Acer has an IPS panel (vs. the TN Panel on the Dell) that provides it with better viewing angles which are important when you look at the monitor from the side such as in an office environment. The Acer has a larger screen size that allows you to work more comfortably and better enjoy multimedia content. On the other hand, the Dell can handle reflections slightly better, and this great if you place it in a room with many light sources behind you.

Samsung C49HG90/CHG90

The Acer Predator XB271HU is better than the Samsung CHG90. The Acer is equipped with an IPS panel and thus has better viewing angles, which is great for collaborative work. The Acer is also flicker-free and has a faster pixel response time which leaves only a small blur trail. The Samsung CHG90, on the other hand, has a local dimming feature and better contrast ratio and black uniformity, so it performs much better in dark environments. The Samsung CHG90 also has a wide color gamut and supports HDR to enhance your viewing experience.

Samsung C34F791/CF791

If you want to work on the same monitor side-by-side with your colleagues at the office, then the Acer Predator XB271HU is a better choice than the Samsung CF791 as it has better viewing angles. The Acer is also better for gaming as it has better input lag, better image flicker to clear blur, and you can easily position it to match your liking. On the other hand, the Samsung CF791 is a larger monitor with higher resolution, giving you more area and more detail to work with.

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