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Acer Predator XB273U GXbmiipruzx Monitor Review

Tested using Methodology v1.2
Reviewed May 03, 2021 at 09:44 am
Acer Predator XB273U GXbmiipruzx Picture
8.1
Mixed Usage
8.1
Office
8.7
Gaming
7.7
Media Consumption
8.4
Media Creation
6.9
HDR
Size
27"
Resolution
2560x1440
Max Refresh Rate
270Hz
Pixel Type
IPS
Variable Refresh Rate
Yes
HDR10
Yes

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

8.1 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
  • Bright enough to overcome glare in most settings.
  • 270Hz max refresh rate.
  • Very good ergonomics.
Cons
  • Mediocre contrast ratio.
  • Vertical viewing angles are limited.
8.1 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.
8.7 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.
  • Low input lag and fast response times.
Cons
  • Mediocre contrast ratio.
  • Can't adjust overdrive with VRR enabled.
7.7 Media Consumption

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.
8.4 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.
6.9 HDR

Pros
  • Wide color gamut.
Cons
  • Mediocre contrast ratio.
  • No local dimming.
  • 8.1 Mixed Usage
  • 8.1 Office
  • 8.7 Gaming
  • 7.7 Media Consumption
  • 8.4 Media Creation
  • 6.9 HDR
  1. Updated Sep 15, 2022: We tested the monitor to confirm that it works with the PS5's new 1440p support.
  2. Updated May 02, 2022: We tested the monitor with the PS5's new variable refresh rate feature and confirmed that it's not compatible, since the PS5 only supports HDMI Forum VRR.
  3. Updated Apr 08, 2022: Converted to Test Bench 1.2.
  4. Updated Nov 26, 2021: We retested the response time with VRR enabled across a range of refresh rates.
  5. Updated May 03, 2021: Review published.
  6. Updated Apr 27, 2021: Early access published.

Check Price

27" Predator XB273U GXbmiipruzx
SEE PRICE
Amazon.com

Test Results

perceptual testing image
Design
Design
Style
Curved
No
Curve Radius
Not Curved

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.

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.

9.2
Design
Ergonomics
Height Adjustment
4.7" (12.0 cm)
Tilt Range
-25° to 5°
Rotate Portrait/Landscape
Yes, Both Ways
Swivel Range
-20° to 20°
Wall Mount
VESA 100x100

The Acer Predator XB273U GX has very good ergonomics, similar to the Acer Predator XB273K Pbmiphzx, but with the added ability to rotate into portrait mode in either direction. 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
Stand
Base Width
18.1" (45.9 cm)
Base Depth
9.3" (23.6 cm)
Thickness (With Display)
7.8" (19.9 cm)
Weight (With Display)
13.7 lbs (6.2 kg)

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.

Design
Display
Housing Width
24.2" (61.4 cm)
Housing Height
14.5" (36.8 cm)
Thickness (Without Stand)
2.7" (6.9 cm)
Weight (Without Stand)
9.0 lbs (4.1 kg)
Borders Size (Bezels)
0.3" (0.9 cm)
Design
Controls

There's a joystick and four buttons on the back to navigate the on-screen display.

Design
In The Box
Power Supply
External Brick

  • Power supply
  • Power cable
  • DisplayPort cable
  • HDMI cable
  • USB to USB-B upstream cable
  • User guide

Picture Quality
6.4
Picture Quality
Contrast
Native Contrast
1,242 : 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 Brightness
Real Scene
473 cd/m²
Peak 2% Window
487 cd/m²
Peak 10% Window
488 cd/m²
Peak 25% Window
488 cd/m²
Peak 50% Window
488 cd/m²
Peak 100% Window
488 cd/m²
Sustained 2% Window
486 cd/m²
Sustained 10% Window
487 cd/m²
Sustained 25% Window
488 cd/m²
Sustained 50% Window
488 cd/m²
Sustained 100% Window
488 cd/m²
ABL
0.000
Minimum Brightness
50 cd/m²

The Acer 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 Brightness
VESA DisplayHDR Certification
DisplayHDR 400
Real Scene
453 cd/m²
Peak 2% Window
467 cd/m²
Peak 10% Window
468 cd/m²
Peak 25% Window
468 cd/m²
Peak 50% Window
468 cd/m²
Peak 100% Window
469 cd/m²
Sustained 2% Window
466 cd/m²
Sustained 10% Window
467 cd/m²
Sustained 25% Window
467 cd/m²
Sustained 50% Window
468 cd/m²
Sustained 100% Window
468 cd/m²
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.

8.3
Picture Quality
Gray Uniformity
50% Std. Dev.
3.783%
50% DSE
0.113%

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.

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.

9.3
Picture Quality
Color Accuracy (Pre-Calibration)
Picture Mode
Standard (sRGB)
sRGB Gamut Area xy
98.0%
White Balance dE (Avg.)
1.35
Color Temperature (Avg.)
6,346 K
Gamma (Avg.)
2.18
Color dE (Avg.)
1.03
Contrast Setting
N/A
RGB Settings
Default
Gamma Setting
Default
Brightness Setting
27
Measured Brightness
188 cd/m²
Brightness Locked
No

The Acer 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.

9.8
Picture Quality
Color Accuracy (Post-Calibration)
Picture Mode
User
sRGB Gamut Area xy
100.4%
White Balance dE (Avg.)
0.52
Color Temperature (Avg.)
6,474 K
Gamma (Avg.)
2.18
Color dE (Avg.)
0.34
Contrast Setting
50
RGB Settings
50-44-48
Gamma Setting
2.2
Brightness Setting
10
Measured Brightness
99 cd/m²
ICC Profile
Download

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.

9.9
Picture Quality
SDR Color Gamut
sRGB Coverage xy
99.6%
sRGB Picture Mode
User
Adobe RGB Coverage xy
100.0%
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.

9.8
Picture Quality
SDR Color Volume
sRGB In ICtCp
97.6%
sRGB Picture Mode
User
Adobe RGB In ICtCp
97.2%
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.

9.1
Picture Quality
HDR Color Gamut
Wide Color Gamut
Yes
DCI-P3 Coverage xy
96.1%
DCI-P3 Picture Mode
HDR Mode
Rec. 2020 Coverage xy
83.8%
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.

8.3
Picture Quality
HDR Color Volume
DCI-P3 In ICtCp
84.0%
DCI-P3 Picture Mode
HDR Mode
Rec. 2020 In ICtCp
71.5%
Rec. 2020 Picture Mode
HDR Mode

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

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
Subpixel 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.

9.9
Picture Quality
Gradient
Color Depth
10 Bit

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

Motion
9.1
Motion
Refresh Rate
Native Refresh Rate
240 Hz
Max Refresh Rate
270 Hz
Max Refresh Rate Over DP
270 Hz
Max Refresh Rate Over HDMI
144 Hz
Max Refresh Rate Over DP @ 10-bit
270 Hz
Max Refresh Rate Over HDMI @ 10-Bit
60 Hz
Motion
Variable Refresh Rate (VRR)
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.

9.3
Motion
Response Time @ Max Refresh Rate
Recommended Overdrive Setting
Normal
Rise / Fall Time
2.5 ms
Total Response Time
5.4 ms
Overshoot Error
3.0%
Worst 3 Rise / Fall Time
4.1 ms
Worst 3 Total Response Time
8.5 ms
Worst 3 Overshoot Error
14.0%

Overdrive SettingResponse Time ChartResponse Time TablesMotion Blur Photo
OffChartTablePhoto
NormalChartTablePhoto
ExtremeChartTablePhoto
VRRChartTablePhoto

Update 11/26/2021: We measured the response time with VRR enabled across a range of refresh rates. We've added a table and explanation below.

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.

60Hz80Hz120Hz240Hz
Tables LinkLinkLinkLink
Charts Link Link Link Link

We also measured the response time with VRR enabled across a range of refresh rates. One of the interesting things we found was that the monitor uses low framerate compensation as soon as the framerate drops below 60. For example, when the framerate decreased to 59, each frame was doubled by the GPU, and the monitor behaved as if it was receiving 118fps. This results in much smoother, clearer motion at 59fps than at 60fps. If your computer tends to hover around 60fps with some games, it might be best to cap the framerate at 59fps, as it delivers a smoother gaming experience overall. Note that these results were obtained using slightly different methodology, so the tables and charts look a bit different.

8.7
Motion
Response Time @ 120Hz
Recommended Overdrive Setting
Off
Rise / Fall Time
4.3 ms
Total Response Time
8.4 ms
Overshoot Error
0.0%
Worst 3 Rise / Fall Time
6.4 ms
Worst 3 Total Response Time
10.7 ms
Worst 3 Overshoot Error
0.0%

Overdrive SettingResponse Time ChartResponse Time TablesMotion Blur Photo
OffChartTablePhoto
NormalChartTablePhoto
ExtremeChartTablePhoto
VRRChartTablePhoto

8.6
Motion
Response Time @ 60Hz
Recommended Overdrive Setting
Off
Rise / Fall Time
4.2 ms
Total Response Time
9.1 ms
Overshoot Error
0.0%
Worst 3 Rise / Fall Time
6.0 ms
Worst 3 Total Response Time
14.1 ms
Worst 3 Overshoot Error
0.0%

Overdrive SettingResponse Time ChartResponse Time TablesMotion Blur Photo
OffChartTablePhoto
NormalChartTablePhoto
ExtremeChartTablePhoto
VRRChartTablePhoto

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.

Motion
Backlight Strobing (BFI)
Backlight Strobing (BFI)
Yes
Maximum Frequency
270 Hz
Minimum Frequency
120 Hz
Longest Pulse Width Brightness
246 cd/m²
Shortest Pulse Width Brightness
121 cd/m²
Pulse Width Control
Limited
Pulse Phase Control
No
Pulse Amplitude Control
No
VRR At The Same Time
No

Refresh RateBFI SettingMotion Blur Photo
270HzNormalPhoto
ExtremePhoto
120HzNormalPhoto
ExtremePhoto

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.

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.

Inputs
9.1
Inputs
Input Lag
Native Resolution @ Max Hz
2.3 ms
Native Resolution @ 120Hz
5.9 ms
Native Resolution @ 60Hz
14.2 ms
Backlight Strobing (BFI)
4.2 ms

The Acer XB273U GX has a remarkably low input lag. It's a bit higher at 60Hz, but it's still quite low overall. The monitor uses Display Stream Compression (DSC) to achieve its 270Hz refresh rate, allowing it to display a 10-bit signal at 270Hz.

8.0
Inputs
Resolution And Size
Native Resolution
2560 x 1440
Aspect Ratio
16:9
Megapixels
3.7 MP
Pixel Density
109 PPI
Measured Screen Diagonal
27.0"
Screen Area
310 in²

The Acer XB273U GX has a 27 inch screen with a high 1440p resolution. There's plenty of space for multitasking and the pixel density is good, resulting in a sharp image.

7.0
Inputs
PS5 Compatibility
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
HDR
Yes
VRR
No
9.2
Inputs
Xbox Series X|S Compatibility
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
HDR
Yes
VRR
Yes
Inputs
Inputs Photos
Inputs
Video And Audio Ports
DisplayPort
1 (DP 1.4)
Mini DisplayPort
No
HDMI
2 (HDMI 2.0)
HDMI 2.1 Rated Speed
No HDMI 2.1
DVI
No
VGA
No
Daisy Chaining
No
3.5mm Audio Out
1
3.5mm Audio In
No
3.5mm Microphone In
No

The USB-C port supports DisplayPort Alt mode at 1440p up to 270Hz with 10-bit thanks to DSC. It also supports power delivery up to 65W, as well as upstream, so it can transfer data to your PC from devices plugged into the monitor's USB ports.

Inputs
USB
USB-A Ports
4
USB-A Rated Speed
5Gbps (USB 3.2 Gen 1)
USB-B Upstream Port
Yes
USB-C Ports
1
USB-C Upstream
Yes
USB-C Rated Speed
5Gbps (USB 3.2 Gen 1)
USB-C Power Delivery
65W
USB-C DisplayPort Alt Mode
Yes
Thunderbolt
No
Inputs
macOS Compatibility

There are no issues with sleep or the USB ports when using this monitor with recent MacBooks. VRR doesn't work properly, especially when the refresh rate dips to 48Hz. The overclock doesn't work with Macs, as the refresh rate becomes locked at 60Hz instead.

Features
Features
Additional Features
Speakers
Yes
RGB Illumination
No
Multiple Input Display
No
KVM Switch
No

The Acer Predator XB273U GX has built-in speakers and HDR10 support. It also has several extra features, including crosshairs, an Ultra-Low Latency mode to reduce input lag, and a low blue light mode to reduce eye strain.

Features
On-Screen Display (OSD)

Differences Between Sizes And Variants

We tested the 27 inch Acer Predator XB273U GXbmiipruzx. It's the only one of this specific model, but there are several similar monitors under the Acer XB3 umbrella. You can see the differences between some of them below.

 Model  Size Panel Type   Refresh Rate Resolution
XB273U GSBMIIPRZX 27" IPS  165Hz  1440p 
 XB273U GXbmiipruzx 27"  IPS  240Hz (270Hz overclocked)  1440p
XB323U GXbmiiphzx  32"  IPS  240Hz   1440p

If you come across a different panel type or your Acer XB273U GX doesn't correspond to our review, let us know and we'll update it. Note that some tests, like gray uniformity, can vary between individual units.

Our unit was manufactured in November 2020, and you can see the label here.

Compared To Other Monitors

The Acer Predator XB273U GXmiipruzx is a great gaming monitor. It has one of the widest HDR color gamuts on any monitor we've tested and is one of the few with full coverage of the Adobe RGB color space. On top of that, it can display a 10-bit signal at 270Hz thanks to DSC, unlike a lot of monitors. However, it's on the pricier side for a 27 inch 1440p monitor.

For more options, see our recommendations for the best 1440p gaming monitors, the best 240Hz monitors, and the best gaming monitors on the market.

ASUS ROG Swift PG279QM

The Acer Predator XB273U GXbmiipruzx is better for gaming than the ASUS ROG Swift PG279QM. The Acer has a faster response time, resulting in clearer motion with less blur behind fast-moving objects. The Acer has an optional backlight strobing feature, commonly known as black frame insertion, but you can't use it if the variable refresh rate feature is enabled. On the other hand, the ASUS has native hardware support for NVIDIA's G-SYNC technology, ensuring a more visually consistent gaming experience at any refresh rate.

Acer Nitro XV272U KVbmiiprzx

The Acer Predator XB273U GXbmiipruzx and the Acer Nitro XV272U KVbmiiprzx perform quite similarly overall. That said, the Predator has a higher refresh rate. Response times and input lag are similar, but the Predator also has a wider color gamut, especially with Adobe RGB coverage.

Samsung Odyssey G7 LC32G75T

The Samsung Odyssey G7 LC32G75T and the Acer Predator XB273U GXbmiipruzx are great monitors that offer amazing gaming features; they also use different panels with different advantages. The Samsung is a VA monitor, so it has a higher contrast ratio and narrower viewing angles. It comes in both a 27 inch and 32 inch size. The Acer, on the other hand, has an IPS panel, so its contrast is worse, but it has wide viewing angles. When it comes to gaming, they both have exceptionally fast response times and low input lag.

Dell Alienware AW2721D

The Acer Predator XB273U GXbmiipruzx and the Dell Alienware AW2721D are both great monitors, but the Acer performs a little better overall, especially when it comes to gaming. The Acer has a higher overclockable refresh rate, as well as faster response times at both its max refresh rate and 60Hz. It also has a wider color gamut and better reflection handling, as well as a USB-C port with power delivery and DisplayPort Alt mode.

ASUS ROG Strix XG27AQ

The Acer Predator XB273U GXbmiipruzx and the ASUS ROG Strix XG27AQ perform quite similarly. They both have superb response times, although the Acer has a higher refresh rate of 270Hz, versus 170Hz on the ASUS. The Acer gets significantly brighter in SDR and brighter in HDR too, and it has a wider color gamut.

MSI Optix MAG274QRF-QD

The MSI Optix MAG274QRF-QD and the Acer Predator XB273U GXbmiipruzx are similar monitors, but the Acer has a bit more to recommend it. They both have exceptional color gamuts, but the MSI lacks an sRGB setting, so colors appear oversaturated. The Acer also has a higher refresh rate, gets brighter in SDR and HDR, and has better accuracy out of the box.

Samsung Odyssey G7 S28AG70

The Acer Predator XB273U GXbmiipruzx and the Samsung Odyssey G7 S28AG70 are different types of gaming monitors with excellent performance. The Acer is meant for high frame rate gaming because it has a 240Hz refresh rate that you can overclock to 270Hz, while the Samsung delivers a more immersive gaming experience thanks to its 4k resolution and HDMI 2.1 inputs. Motion looks smoother on the Acer, especially at 60Hz, because it has a quicker response time with less overshoot. It also gets brighter, and while the Samsung has a local dimming feature, it performs terribly.

Gigabyte M27Q

The Gigabyte M27Q and the Acer Predator XB273U GXbmiipruzx are excellent gaming monitors that stand out due to their exceptionally wide color gamuts. They also both have incredibly fast response times and low input lag. The biggest difference is that the Acer has a higher refresh rate of 270Hz versus the 170Hz on the Gigabyte.

Gigabyte AORUS FI27Q-X

The Gigabyte AORUS FI27Q-X and the Acer Predator XB273U GXbmiipruzx perform very similarly overall. They both have native 240Hz refresh rates, although the Acer can be overclocked to 270Hz. Both have fantastic response times as well. The Acer, however, is better for HDR gaming because it has a slightly wider color gamut and better color volume. It gets a bit brighter in SDR as well.

LG 27GL850-B

The Acer Predator XB273U GXbmiipruzx is a better monitor overall than the LG 27GL850-B. The Acer has a higher refresh rate and faster response times with less overshoot. It has less of an issue with glare since it gets brighter, and it has a wider color gamut. It also has more ergonomic adjustment options, better text clarity, and more USB ports, including a USB-C port, so it's better suited to productivity.

Dell S2721DGF

The Dell S2721DGF and the Acer Predator XB273U GXbmiipruzx both perform well when it comes to gaming, but the Acer has a significantly higher refresh rate at 270Hz, while the Dell maxes out at 165Hz. Still, both have exceptional response times and low input lag. The Acer has a few extra features that the Dell doesn't, like Black Frame Insertion (BFI), built-in speakers, and a USB-C port with power delivery and DisplayPort Alt mode.

Dell Alienware AW2521H

The Dell Alienware AW2521H and the Acer Predator XB273U GXbmiipruzx are very different gaming monitors. The Dell is a 25 inch 1080p monitor with a 360Hz refresh rate, aimed at competitive gamers who want the best possible motion clarity. Meanwhile, the Acer is a 27 inch 1440p monitor, so you get a bit of a sharper image and a little more screen space to work with. It still has a high 270Hz refresh rate, however, and both have incredible response times. The Acer also has a wider color gamut in SDR and HDR.

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