Acer Predator XB273U GXbmiipruzx Monitor Review

Tested using Methodology v1.1
Reviewed May 03, 2021 at 09:44 am
Acer Predator XB273U GXbmiipruzx Picture
8.3
Mixed Usage
8.2
Office
8.8
Gaming
8.1
Multimedia
8.3
Media Creation
7.5
HDR Gaming
Size 27"
Resolution 2560x1440
Max Refresh Rate
270 Hz
Pixel Type
IPS
Variable Refresh Rate
Adaptive Sync

The Acer Predator XB273U GXbmiipruzx is a great all-around monitor with excellent gaming performance and plenty of features. It has an overclocked 270Hz refresh rate and exceptionally low input lag that make gaming feel smooth and responsive. It also has an incredible response time and variable refresh rate (VRR) support. It feels solidly built, and it has very good ergonomics so you can set it as you like. It's an IPS monitor, so the contrast ratio is limited, but it's not bad overall, and the monitor has wide viewing angles, making it easy to share content or game with a friend. It also gets very bright, enough to overcome glare in most lighting conditions. While its HDR brightness is only decent, it's on the brighter side for a monitor, and it has one of the widest HDR color gamuts we've tested, along with an exceptional SDR color gamut. It can also display 10-bit color in 1440p at 270Hz by using Display Stream Compression (DSC).

Our Verdict

8.3 Mixed Usage

The Acer Predator XB273U GX is an impressive monitor for mixed usage. It has very good ergonomics so that you can adjust it easily however you like, and it gets bright enough to overcome glare in an office or well-lit room. Its wide color gamut is great for content creation, and it delivers a fairly satisfying HDR experience. Finally, it's amazing for gaming, with a high refresh rate, very fast response times, low input lag, and VRR support.

Pros
  • Wide color gamut.
  • Bright enough to overcome glare in most settings.
  • 270Hz max refresh rate.
  • Very good ergonomics.
Cons
  • Mediocre contrast ratio.
  • Vertical viewing angles are limited.
8.2 Office

The Acer Predator XB273U GX is a great office monitor. It's a good size for multitasking, and the 1440p resolution delivers a crisp image. It also has very good ergonomics, allowing you to adjust it as you please. While its vertical viewing angles are only okay, it has very wide horizontal viewing angles for sharing content. To top it off, it gets bright enough to overcome glare in most environments.

Pros
  • Bright enough to overcome glare in most settings.
  • Very good ergonomics.
  • Great horizontal viewing angles.
Cons
  • Mediocre contrast ratio.
  • Vertical viewing angles are limited.
8.8 Gaming

The Acer Predator XB273U GX is an excellent gaming monitor. It has a high overclocked 270Hz refresh rate and outstanding response times, both at its max refresh rate and 60Hz. It's compatible with FreeSync and G-SYNC; however, VRR doesn't work with the overclock setting, and it locks in overdrive, which may be annoying. Input lag is extremely low but somewhat higher at 60Hz.

Pros
  • 270Hz max refresh rate.
  • FreeSync and G-SYNC VRR.
  • Very low input lag.
  • Incredibly fast response time.
Cons
  • Mediocre contrast ratio.
  • Can't adjust overdrive with VRR enabled.
8.1 Multimedia

The Acer Predator XB273U GX is great for multimedia. Its 27 inch screen is a good size for watching videos, and its 1440p resolution produces a crisp image. It also has wide viewing angles, which is great for watching with a friend. Reflection handling is decent, and it gets quite bright to overcome glare. Unfortunately, it has a mediocre contrast ratio, so blacks may appear more like gray in the dark.

Pros
  • Wide color gamut.
  • Bright enough to overcome glare in most settings.
  • Great horizontal viewing angles.
Cons
  • Mediocre contrast ratio.
8.3 Media Creation

The Acer Predator XB273U GX is impressive for media creation. It has an exceptional color gamut in both HDR and SDR, including full coverage of the Adobe RGB color space used in photo editing. It also has good ergonomics, so you can adjust the screen to your ideal position. Unfortunately, it has a low contrast ratio, so it can't produce really deep blacks.

Pros
  • Wide color gamut.
  • Bright enough to overcome glare in most settings.
  • Great horizontal viewing angles.
Cons
  • Mediocre contrast ratio.
7.5 HDR Gaming

The Acer Predator XB273U GX is good for HDR gaming. Its gaming features are top-notch, with a high 270Hz refresh rate, fast response times, and low input lag. It also supports VRR to reduce screen tearing. It has one of the widest HDR color gamuts we've tested and it gets decently bright in HDR. It can also display 10-bit color in 1440p at 270Hz thanks to DSC. However, its low contrast ratio makes blacks look more grayish in the dark.

Pros
  • Wide color gamut.
  • FreeSync and G-SYNC VRR.
  • Can display 10-bit color in 1440p at 270Hz.
  • Low input lag and fast response times.
Cons
  • Mediocre contrast ratio.
  • No local dimming.
  • 8.3 Mixed Usage
  • 8.2 Office
  • 8.8 Gaming
  • 8.1 Multimedia
  • 8.3 Media Creation
  • 7.5 HDR Gaming

Check Price

27" Predator XB273U GXbmiipruzx
Unavailable
Amazon.com

Test Results

perceptual testing image
Design
Design
Style
Curved No
Curve Radius Not Curved
Weight (without stand)
9.0 lbs (4.1 kg)
Weight (with stand)
13.7 lbs (6.2 kg)

The Acer Predator XB273U GX has a very similar design to the Acer Predator XB273K Pbmiphzx. It looks good with gamer-oriented touches and slight red accents.

Design
Stand
Width
18.1" (45.9 cm)
Depth
9.3" (23.6 cm)

The stand is slightly raised and has a wide footprint, but there's still plenty of space in front. It supports the monitor well with no wobble.

7.9
Design
Ergonomics
Height Adjustment
4.7" (12.0 cm)
Switch Portrait/Landscape Yes, Both Ways
Swivel Range -20° to 20°
Tilt Range -25° to 5°

It has very good ergonomics, similar to the Acer Predator XB273K Pbmiphzx, but with the added ability to rotate into portrait mode in either direction.

Design
Back
Wall Mount VESA 100x100

The back is fairly simple, with the Acer branding and some brushed metal texture in the plastic at the top. There's a cutout in the stand for cable management.

Design
Borders
Borders
0.3" (0.8 cm)

The borders are thin, which is great for dual monitor setups.

Design
Thickness
Thickness (with stand)
7.8" (19.9 cm)
Thickness (without stand)
2.7" (6.9 cm)

The monitor itself is quite thin, but it's a lot thicker with the stand.

8.0
Design
Build Quality

The monitor feels well-built. It's made of decent-quality plastic, and there's not too much flex. There are no obvious gaps or issues.

Picture Quality
6.4
Picture Quality
Contrast
Native Contrast
1242 : 1
Contrast With Local Dimming
N/A

The Acer XB273U GX has a passable contrast ratio. It's better than the typical 1000:1 contrast of most IPS panels, although contrast can vary a bit between units.

0
Picture Quality
Local Dimming
Local Dimming
No
Backlight
Edge

The Acer XB273U GX doesn't have local dimming. The video above is provided for reference only.

8.4
Picture Quality
SDR Peak Brightness
SDR Real Scene
473 cd/m²
SDR Peak 2% Window
487 cd/m²
SDR Peak 10% Window
488 cd/m²
SDR Peak 25% Window
488 cd/m²
SDR Peak 50% Window
488 cd/m²
SDR Peak 100% Window
488 cd/m²
SDR Sustained 2% Window
486 cd/m²
SDR Sustained 10% Window
487 cd/m²
SDR Sustained 25% Window
488 cd/m²
SDR Sustained 50% Window
488 cd/m²
SDR Sustained 100% Window
488 cd/m²
SDR ABL
0.000

The Acer Predator XB273U GX has impressive SDR peak brightness, even higher than the advertised 400 nits. It's very consistent across different scenes and should be bright enough to overcome glare in most settings.

We measured SDR brightness after calibration in the 'User' Picture Mode, with Brightness set to max.

7.1
Picture Quality
HDR Peak Brightness
HDR Real Scene
453 cd/m²
HDR Peak 2% Window
467 cd/m²
HDR Peak 10% Window
468 cd/m²
HDR Peak 25% Window
468 cd/m²
HDR Peak 50% Window
468 cd/m²
HDR Peak 100% Window
469 cd/m²
HDR Sustained 2% Window
466 cd/m²
HDR Sustained 10% Window
467 cd/m²
HDR Sustained 25% Window
467 cd/m²
HDR Sustained 50% Window
468 cd/m²
HDR Sustained 100% Window
468 cd/m²
HDR ABL
0.000

HDR peak brightness is decent. It meets the brightness requirement for its DisplayHDR 400 certification and stays very consistent across different scenes. It should be bright enough for a satisfying HDR gaming experience, but it may not be bright enough to make HDR movies really pop.

We measured HDR brightness in 'HDR' mode, with Brightness set to max.

8.1
Picture Quality
Horizontal Viewing Angle
Color Washout From Left
35 °
Color Washout From Right
35 °
Color Shift From Left
56 °
Color Shift From Right
56 °
Brightness Loss From Left
39 °
Brightness Loss From Right
40 °
Black Level Raise From Left
70 °
Black Level Raise From Right
70 °
Gamma Shift From Left
60 °
Gamma Shift From Right
59 °

The Acer XB273U GX has great horizontal viewing angles, so the image should stay accurate from the sides.

6.9
Picture Quality
Vertical Viewing Angle
Color Washout From Below
29 °
Color Washout From Above
30 °
Color Shift From Below
40 °
Color Shift From Above
44 °
Brightness Loss From Below
32 °
Brightness Loss From Above
34 °
Black Level Raise From Below
70 °
Black Level Raise From Above
70 °
Gamma Shift From Below
30 °
Gamma Shift From Above
30 °

The vertical viewing angles are okay, but the image may lose a bit of accuracy if viewed from above or below.

8.6
Picture Quality
Gray Uniformity
50% Std. Dev.
3.783 %
50% DSE
0.095 %
5% Std. Dev.
0.583 %
5% DSE
0.068 %

The Acer Predator XB273U has excellent gray uniformity, although this can vary between units. The corners and edges are darker, but there's not much dirty screen effect, and uniformity is even better in near-dark scenes.

6.6
Picture Quality
Black Uniformity
Native Std. Dev.
1.588 %
Std. Dev. w/ L.D.
N/A

Black uniformity is okay. There's a bit of noticeable clouding, as well as some backlight bleed near the top and bottom edges, but it's not bad overall. Note that black uniformity may vary between units.

8.6
Picture Quality
Pre Calibration
Picture Mode
Standard (sRGB)
Luminance
179 cd/m²
Luminance Settings
30
Contrast Setting
50
RGB Controls
Default
Gamma Setting
Default
Color Temperature
6292 K
White Balance dE
2.31
Color dE
1.49
Gamma
2.19

The Acer Predator XB273U GX has excellent out-of-the-box color accuracy, though this can vary between units. The colors are excellent, most are only slightly off, and the white balance is great. Gamma follows the curve very well, and the color temperature is fairly close to our 6500K target, albeit slightly on the warmer side. We used the 'Standard (sRGB)' mode because it's the most accurate.

9.5
Picture Quality
Post Calibration
Picture Mode
User
Luminance
102 cd/m²
Luminance Settings
10
Contrast Setting
50
RGB Controls
52-47-52
Gamma Setting
2.2
Color Temperature
6401 K
White Balance dE
0.76
Color dE
0.51
Gamma
2.18

After calibration, the accuracy is fantastic. The color temperature is even closer to the 6500K target, and gamma follows the curve well, although bright scenes may be a bit over-brightened. Any remaining color or white balance inaccuracies shouldn't be noticeable to the naked eye.

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

10
Picture Quality
SDR Color Gamut
sRGB xy
99.6 %
Adobe RGB xy
100.0 %
sRGB Picture Mode
User
Adobe RGB Picture Mode
User

The Acer Predator XB273U has an exceptional SDR color gamut. It has full coverage of both the sRGB color space used in most content and the Adobe RGB color space used in professional photo editing. If you're not in sRGB mode, some colors may appear oversaturated. Greens and reds may also be oversaturated in Adobe RGB since the gamut covers more than the required Adobe RGB color space.

9.7
Picture Quality
SDR Color Volume
sRGB In ICtCp
97.6 %
Adobe RGB In ICtCp
97.2 %
sRGB Picture Mode
User
Adobe RGB Picture Mode
User

SDR color volume is outstanding. It only has trouble reproducing very dark, saturated colors due to its low contrast ratio. Otherwise, colors look vibrant at a wide range of luminance levels.

8.8
Picture Quality
HDR Color Gamut
Wide Color Gamut
Yes
DCI P3 xy
92.2 %
Rec. 2020 xy
83.8 %
DCI P3 Picture Mode
HDR Mode
Rec. 2020 Picture Mode
HDR Mode

The Acer Predator XB273U can display a wide color gamut for HDR content, with remarkable coverage of the DCI P3 color space and impressive coverage of the wider Rec. 2020. Its HDR tone mapping is excellent as well, with very few inaccuracies.

7.8
Picture Quality
HDR Color Volume
DCI-P3 In ICtCp
84.0 %
Rec. 2020 In ICtCp
71.5 %
DCI P3 Picture Mode
HDR Mode
Rec. 2020 Picture Mode
HDR Mode

HDR color volume is good, although it's limited by the monitor's low contrast ratio.

10
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 %

There are no signs of temporary image retention, but this can vary between units.

9.9
Picture Quality
Gradient
Color Depth
10 Bit

Gradients look incredible. There's hardly any visible banding.

7.6
Picture Quality
Color Bleed
Pixel Row Error
0.001 %
Pixel Column Error
0.486 %

There's a bit of color bleed, mostly in the vertical columns. However, it shouldn't be too noticeable with real content.

7.2
Picture Quality
Reflections
Screen Finish
Matte
Total Reflections
5.7 %
Indirect Reflections
3.0 %
Calculated Direct Reflections
2.7 %

The Acer Predator XB273U has decent reflection handling. It does a good job of diffusing light, but it's still best to avoid placing it directly across from a window or light source.

7.5
Picture Quality
Text Clarity
Sub-Pixel Layout
RGB

Text clarity is good. Enabling ClearType (top photo) makes diagonal and curved lines look clearer, as seen on the R, N, and G.

Motion
9.7
Motion
Response Time @ Max Refresh Rate
Best Overdrive Setting
Normal
Rise / Fall Time
2.9 ms
Total Response Time
5.6 ms
Overshoot Error
1.9 %
Dark Rise / Fall Time
3.3 ms
Dark Total Response Time
6.8 ms
Dark Overshoot Error
3.0 %

Overdrive SettingResponse Time ChartResponse Time TablesMotion Blur Photo
OffChartTablePhoto
NormalChartTablePhoto
ExtremeChartTablePhoto

The Acer Predator XB273U GX has an incredible response time at its max refresh rate, resulting in exceptionally clear motion in fast-moving content. We recommend the 'Normal' overdrive setting, as it's the fastest and the amount of overshoot is acceptable. The 'Off' setting has no overshoot, but it's a bit slower, while the 'Extreme' setting has too much overshoot.

9.3
Motion
Response Time @ 60Hz
Best Overdrive Setting
Off
Rise / Fall Time
4.5 ms
Total Response Time
9.2 ms
Overshoot Error
0 %
Dark Rise / Fall Time
4.8 ms
Dark Total Response Time
8.8 ms
Dark Overshoot Error
0.0 %

Overdrive SettingResponse Time ChartResponse Time TablesMotion Blur Photo
OffChartTablePhoto
NormalChartTablePhoto
ExtremeChartTablePhoto

At 60Hz, the response time is still remarkable, although you may notice a bit more motion blur. The best overdrive setting at 60Hz is 'Off' because both 'Normal' and 'Extreme' produce too much overshoot.

10
Motion
Image Flicker
Flicker-Free Yes
PWM Dimming Frequency
0 Hz

The Acer Predator XB273U GX has a flicker-free backlight, which can help reduce eye strain.

6.3
Motion
Black Frame Insertion (BFI)
Black Frame Insertion (BFI)
Yes
BFI Maximum Frequency
270 Hz
BFI Minimum Frequency
120 Hz

The Acer XB273U GX has an optional Black Frame Insertion (BFI) feature that flickers the backlight to help reduce motion blur, called Visual Response Boost (VRB). It only works above 120Hz and can't be used at the same time as VRR. Note that our BFI score is based on the range at which it can flicker, not its actual performance.

9.6
Motion
Refresh Rate
Native
240 Hz
Max Refresh Rate
270 Hz
Variable Refresh Rate
Yes
FreeSync
Compatible (Tested)
G-SYNC
Compatible (NVIDIA Certified)
VRR Maximum
240 Hz
VRR Minimum
< 20 Hz
VRR Supported Connectors DisplayPort, HDMI

The Acer XB273U GX has a native 240Hz refresh rate, which can be overclocked to 270Hz. It supports Adaptive Sync natively, is FreeSync-compatible, and is certified as G-SYNC-compatible. Unfortunately, you can't enable VRR while 'Overclock' is on, meaning the monitor is limited to 240Hz with VRR. Enabling VRR also locks the overdrive setting to 'Normal'. While that's the recommended setting for the max refresh rate, it's not recommended for 60Hz because the overshoot is too noticeable, which could be frustrating if you're playing low frame rate games.

Inputs
9.6
Inputs
Input Lag
Native Resolution
2.3 ms
Native Resolution @ 60Hz
14.2 ms
Variable Refresh Rate
2.6 ms
Variable Refresh Rate @ 60Hz