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Reviewed on Jul 11, 2019 , Emil Beaulieu, Yannick Khong

Acer VG271UP
MONITOR REVIEW

Usage Ratings - Version 1.0

Test Benches:

  • 1.0: Fall 2017
7.6
Mixed Usage
Score components:
7.5
6.5
HDR Gaming
Size : 27 "
Resolution : 2560x1440
Refresh Rate : 144 Hz
LCD Type
What it is: Type of LCD technology used by the monitor.
When it matters: Different technologies have different viewing angle properties.
:
IPS
Variable Refresh Rate
What it is: Feature that allows the monitor to synchronize its refresh rate with the input device's output and reduces stuttering and screen tearing.
When it matters: Almost every usage, but is most noticeable in gaming where constant fluctuation in framerate cause distracting artifacts.
:
FreeSync

The Acer VG271U is a good 1440p IPS monitor with an excellent 144Hz refresh rate. It has decent picture handling, excellent motion handling, and outstanding low input lag, and is a great choice for a gaming monitor. This monitor supports HDR, and unlike the 1080p version, the Acer Nitro VG271, it can display a wider color gamut, although it still can't get very bright in HDR. Unfortunately, the unit we tested has terrible black uniformity, although this does vary between units, and the stand has very limited ergonomics and can only tilt.

Test Results
Design 7.0
Picture Quality 7.0
Motion 9.1
Inputs 9.1
Pros
  • Outstanding low input lag.
  • Excellent motion handling and a fast response time.
Cons
  • Terrible black uniformity.
  • Poor ergonomics.

Check Price

7.0

Design

Score components: Subjectively assigned
Curved : No
Curve radius : N/A
Weight (without stand)
What it is: The weight of the monitor when mounted. This is with the stand removed, and if necessary any VESA mounting bracket attached.
When it matters: When choosing a mount for a monitor/
:
10.6 lbs (4.8 kg)
Weight (with stand)
What it is: The weight of the monitor including the stand any any input covers.
:
11.7 lbs (5.3 kg)

The Acer Nitro VG271UP has a decent design and looks almost identical to the Acer Nitro VG271, but with a blue stand. The stand supports the monitor well but wobbles a fair bit when nudged. This monitor is decently built, but is almost entirely made of plastic. Unfortunately, the stand has very limited ergonomic adjustments, so a VESA stand might be a good idea.

Stand
Width
What it is: The width of the stand.
When it matters: When using a small desk, for those who require a monitor with a small footprint.
:
13.2" (33.5 cm)
Depth
What it is: The depth of the stand.
When it matters: When using a small desk, for those who require a monitor with a small footprint.
:
9.4" (23.9 cm)

The stand is relatively small, and has an identical design to the VG271, but with a blue finish. It supports the monitor well overall but wobbles quite a bit when nudged.

3.3 Ergonomics
What it is: How much the position of the screen can be adjusted to match the viewing preference of the user.
When it matters: All usages, but especially office and gaming use.
Score components:
  • 46% Height Adjustment
  • 18% Switch portrait/landscape
  • 18% Swivel Range
  • 18% Tilt Range
Height Adjustment
What it is: The amount of vertical travel or adjustment of the display.
:
N/A
Switch portrait/landscape : No
Swivel Range : N/A
Tilt Range : -20° to 7.5

Unfortunately, the stand has very limited ergonomic adjustments. It can only tilt and has no height adjustment or swivel. There is no cable management either.

Back
Wall Mount : VESA 100x100

The back of the monitor is very basic, with almost no design features and no RGB bias lighting. There is a quick release on the stand, and it can be VESA mounted without any spacers.

Borders
Borders
What it is: The distance from the left edge of the display to the start of the image.
When it matters: When using multiple monitors side-by-side.
:
0.4" (1.0 cm)

The borders are very thin on three sides and don't stick out.

Thickness
Thickness (with stand)
What it is: How far the front of the screen protrudes when placed as far back as possible against a wall.
When it matters: When the monitor is placed back against a wall.
:
7.0" (17.8 cm)
Thickness (without stand)
What it is: How far the front of the screen protrudes when the stand has been removed. For monitors which require a bracket to VESA mount this measurement includes the thickness of the bracket.
When it matters: When mounting a monitor with the stand removed.
:
2.6" (6.6 cm)

The monitor itself isn't very thick and looks great VESA mounted. The stand sticks out a bit, though, and prevents the monitor from being placed fully against the wall behind it.

6.5 Build Quality
What it is: How well built and sturdy the monitor is, and how good the materials used to build it are.
When it matters: All usages.
Score components: Subjectively assigned

The Acer VG271U has decent build quality. It's mostly made of plastic, but there are no obvious areas of concern.

The Acer Nitro VG271U delivers decent overall picture quality. Like most IPS monitors, it can't produce deep blacks in a dark room, but it has very good viewing angles. It has good peak brightness in SDR and decent peak brightness in HDR, but small highlights in some scenes aren't as bright as they should be. Unlike the 1080p version of this monitor, the Acer Nitro VG271, this monitor can display a wider color gamut, which is great. Unfortunately, the unit we tested had terrible black uniformity, worse even than the VG271.

6.4 Contrast
What it is: Brightness difference between white and black. This is the main component of picture quality.
When it matters: Always, but especially when watching dark scenes.
Score components:
Native Contrast
What it is: Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with a white target of 100 cd/m².
When it matters: Dark scenes in a dark room.
Good value: > 3,000
Noticeable difference: 500
:
1244 : 1
Contrast with local dimming
What it is: Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with local dimming turned on (maximum) with a white target of 100 cd/m².
When it matters: Dark scenes in a dark room.
Good value: > 3,000
Noticeable difference: 500
:
N/A

Mediocre contrast ratio, but in the same ballpark as the VG271. In a bright room this isn't an issue, but in a dark room blacks appear gray. These results are fairly typical for monitors with IPS panels.

0 Local Dimming
What it is: The lights behind the LCD layer adapt to the picture displayed, improving the contrast ratio.
When it matters: Dark scenes viewed in a dark room.
Score components: Subjectively assigned
Local Dimming
What it is: Whether it has a feature that controls the LEDs behind the LCD layer, to match the picture and darkens the dark portion of it.
When it matters: On LED TVs only. Dark scenes viewed in a dark room.
:
No
Backlight
What it is: Configuration of the lights of the backlight.
When it matters: Effectiveness of the local dimming.
Good value: Full-array/direct lighting is better for local dimming. As for the uniformity of the screen, it depends on the implementation. Some edge-lit monitors have more uniform blacks than some full-array monitors.
:
Edge

The Acer VG271U does not have a local dimming feature. The above video is provided for reference only.

7.7 SDR Peak Brightness
What it is: How bright the screen can get. Measured with local dimming and with SDR content.
When it matters: Bright living rooms; bright objects; SDR content.
SDR Real Scene
What it is: The maximum luminosity the monitor can obtain while playing a movie or while watching a TV show. Our Real Scene was selected to represent a more regular movie condition. All measurements are made with the TV set to be as bright as possible, but with a 6500k white. Measured with local dimming on, max backlight and with an SDR signal. Scene: here.
When it matters: When watching movies and TV shows in SDR.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
312 cd/m²
SDR Peak 2% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, present on screen for a short time
:
320 cd/m²
SDR Peak 10% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, present on screen for a short time
:
320 cd/m²
SDR Peak 25% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
320 cd/m²
SDR Peak 50% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
320 cd/m²
SDR Peak 100% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
320 cd/m²
SDR Sustained 2% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, persistent during a scene.
:
319 cd/m²
SDR Sustained 10% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, persistent during a scene.
:
320 cd/m²
SDR Sustained 25% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
320 cd/m²
SDR Sustained 50% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
319 cd/m²
SDR Sustained 100% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
:
320 cd/m²
SDR ABL
What it is: The standard deviation of the SDR sustained brightness, after linearizing for noticeable differences in luminosity
When it matters: Content with large bright areas, such as for PC or video game use, and sports such as hockey
:
0.000

Very good peak brightness in SDR. The VG271U is quite a bit dimmer than the Acer Nitro VG271. This is unexpected, but we have rechecked both, and it's a real difference between them.

7.1 HDR Peak Brightness
What it is: How bright the screen can get. Measured with local dimming and with HDR content.
When it matters: HDR content
HDR Real Scene
What it is: The maximum luminosity the monitor can obtain while playing a movie or while watching a TV show. This scene was selected to represent a more realistic movie condition. All measurements are made with the monitor set to be as bright as possible, but with a 6500k white. Measured with local dimming, max backlight and over HDR signal. Scene: here.
When it matters: When watching movies or watching TV show in HDR.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
462 cd/m²
HDR Peak 2% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright highlights, present on screen for a short time; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
481 cd/m²
HDR Peak 10% Window
What it is: TThe maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright objects, present on screen for a short time; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
482 cd/m²
HDR Peak 25% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms; bright objects in HDR video.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
482 cd/m²
HDR Peak 50% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
482 cd/m²
HDR Peak 100% Window
What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
482 cd/m²
HDR Sustained 2% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright highlights, persistent throughout a scene; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
480 cd/m²
HDR Sustained 10% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright highlights, persistent throughout a scene; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
482 cd/m²
HDR Sustained 25% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright highlights, persistent throughout a scene; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
482 cd/m²
HDR Sustained 50% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
481 cd/m²
HDR Sustained 100% Window
What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the monitor set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
481 cd/m²
HDR ABL
What it is: The coefficient of variation of the HDR sustained brightness, after linearizing for noticeable differences in luminosity
When it matters: HDR content with large bright areas, such as HDR gaming
Good value: <0.07
Noticeable difference: 0.01
:
0.000

Decent peak brightness in HDR, about the same as the Nitro VG271 and slightly brighter than the Gigabyte Aorus AD27QD.

For HDR to work, you have to choose the 'HDR' Picture Mode and set the HDR setting to either 'Auto' or 'HDR400'. For the purposes of our testing, we chose the 'HDR400' setting.

7.6 Horizontal Viewing Angle
What it is: Color accuracy when viewed from the side.
Color Shift from Left
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your left
Good value: > 50°
Noticeable difference: 10°
:
42 °
Color Shift from Right
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right
Good value: > 50°
Noticeable difference: 10°
:
44 °
Brightness from Left
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your left.
Good value: > 50°
Noticeable difference: 10°
:
50 °
Brightness from Right
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
51 °
Black Level from Left
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Black Level from Right
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When sharing your monitor with people on your right.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Curve Radius : N/A

Like most IPS monitors, the VG271U has very good horizontal viewing angles. The black levels remain almost constant to any angle, but the brightness drops off gradually and colors lose accuracy.

8.0 Vertical Viewing Angle
What it is: Color accuracy when viewed from the top or bottom.
Color Shift from Below
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
28 °
Color Shift from Above
What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor when standing up.
Good value: > 50°
Noticeable difference: 10°
:
26 °
Brightness from Below
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
34 °
Brightness from Above
What it is: Angle where the brightness drops to 50% of the brightness directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor while standing up.
Good value: > 50°
Noticeable difference: 10°
:
32 °
Black Level from Below
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor from below.
Good value: > 50°
Noticeable difference: 10°
:
75 °
Black Level from Above
What it is: Angle where the black level drops to 50% of the black level directly in front of the monitor. 0 ° means directly facing the monitor. Measurements are up to a maximum of 75 °.
When it matters: When looking at a monitor while standing up.
Good value: > 50°
Noticeable difference: 10°
:
75 °

Very good vertical viewing angles. The brightness drops off a bit faster vertically than horizontally and colors shift faster, but this shouldn't be an issue for most people.

8.8 Gray Uniformity
What it is: Evenness of colors onscreen (not just gray).
When it matters: Solid colors. Sports, panning shots.
Score components:
50% Std. Dev.
What it is: Average squared difference of pixels when displaying a mid 50% gray.
When it matters: Solid colors. Sports, panning shots.
Good value: < 2.5%
Noticeable difference: 1%
:
2.880 %
50% DSE
What it is: Dirty Screen Effect. High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Solid colors. Sports, panning shots.
Good value: < 0.165%
Noticeable difference: 0.025%
:
0.102 %
5% Std. Dev.
What it is: Average squared difference of pixels when displaying a mid 5% gray.
When it matters: Dark scenes.
Good value: < 1.15%
Noticeable difference: 1%
:
0.835 %
5% DSE
What it is: Dirty Screen Effect. High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Dark scenes.
Good value: < 0.116%
:
0.061 %

Excellent gray uniformity. There is some vignetting visible in the corners, and the sides of the screen are slightly darker. The center of the screen is very uniform, though, and there is very little dirty screen effect.

0 Black Uniformity
What it is: Evenness of blacks.
When it matters: Dark scenes viewed in a dark room.
Score components:
Native Std. Dev.
What it is: Average of the squared difference of the blacks.
When it matters: Dark scenes viewed in a dark room.
Good value: <2%
Noticeable difference: 1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
:
6.422 %
Std. Dev. w/ L.D.
What it is: Average of the squared difference of the blacks with Local Dimming enabled
When it matters: Dark scenes viewed in a dark room.
Good value: <2%
Noticeable difference: 1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
:
N/A

Unfortunately, the Acer VG271U has terrible black uniformity, with significant clouding and backlight bleed throughout. This varies between units, though, and depends on the manufacturer's quality control standards. If you have the VG271UP, let us know how you find the black uniformity in the discussions down below.

6.6 Pre Calibration
What it is: Monitor's color accuracy before a full calibration. The measurements are taken with out of the box 'factory setting'.
When it matters: All video on an uncalibrated TV. This represents most people's use cases.
Score components:
Picture Mode
What it is: The picture mode that was used to do the pre-calibration reading. We usually go for the picture mode that gives us the more control over all the picture quality setting.
:
Standard
Luminance
What it is: The luminance at which the pre-calibration reading was done. This represents the luminance of the monitor when it is at the factory default settings.
:
289 cd/m²
Luminance Settings
What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
80
Contrast Setting
What it is: The monitor contrast setting, usually ranging from 0 to 100.
:
49
RGB controls
What it is: This is the value for each color (red, green, and blue) used in the monitor internal RGB cuts/gains controls. If the monitor does not have an internal RGB cuts/gains controls, then the color temperature setting will be used instead, and the color temperature that gives us the best result will be used.
:
Warm
Color Temperature
What it is: The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color for PC monitors and also for the sRGB color standard.
When it matters: When you care about color reproduction and accuracy.
Good value: 6500K
Noticeable difference: 400K
:
5935 K
White Balance dE
What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all video.
Good value: < 3
Noticeable difference: 1
:
3.59
Color dE
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
3.95
Gamma
What it is: Brightness of shades of gray.
When it matters: Shadows.
Good value: Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference: 0.1
:
2.18

Out of the box, this monitor has decent accuracy. Gamma is relatively flat and tracks close to 2.2, and it doesn't follow the sRGB target curve. There are some inaccuracies in all colors and shades of gray that some people might notice, and the color temperature is a bit warm.

9.7 Post Calibration
What it is: Monitor's color accuracy after a full calibration with a spectrophotometer.
When it matters: All graphics and video content on a monitor that has been professionally calibrated.
Score components:
Picture Mode
What it is: The picture mode that was used to do the calibration reading. We usually go for the picture mode that gives us the more control over all the picture quality setting.
:
User
Luminance
What it is: The luminance at which the calibration was executed. We aim for a luminance level of 100 cd/m².
:
101 cd/m²
Luminance Settings
What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
19
Contrast Setting
What it is: The monitor contrast setting, usually ranging from 0 to 100.
:
49
RGB Controls
What it is: This is the value for each color (red, green, and blue) used in the monitor internal RGB cuts/gains controls. If the monitor does not have an internal RGB cuts/gains controls, then the color temperature setting will be used instead, and the color temperature that gives us the best result will be used.
:
44-43-52
Color Temperature
What it is: The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color for PC monitors and also for the sRGB color standard.
When it matters: When you care about color reproduction and accuracy.
Good value: 6500K
Noticeable difference: 400K
:
6515 K
White Balance dE
What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all videos.
Good value: < 3
Noticeable difference: 1
:
0.56
Color dE
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
0.36
Gamma
What it is: Brightness of shades of gray.
When it matters: Shadows.
Good value: Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference: 0.1
:
2.19

After calibration, the VG271U has outstanding accuracy. Colors and white balance are almost perfect, with no noticeable inaccuracies, and the color temperature is very close to our target of 6500K. Gamma follows the sRGB target curve almost perfectly.

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.

9.2 SDR Color Gamut
What it is: The palette of colors the monitor can display
When it matters: General content consumption or production
Score components:
sRGB xy
What it is: Coverage of the sRGB colorspace on CIE 1931 xy.
When it matters: Almost all content. Includes websites, standard windows environment and SDR movies
Good value: > 95%
Noticeable difference: 5%
:
99.5 %
Adobe RGB xy
What it is: Coverage of the Adobe RGB colorspace on CIE 1931 xy.
When it matters: Professional photography.
Good value: > 90%
Noticeable difference: 5%
:
85.0 %

sRGB Picture Mode: User (calibrated)
Adobe RGB Picture Mode: User

Excellent SDR color gamut, slightly better than the VG271. It can display the whole sRGB color space, which is great, and it has great coverage of the Adobe color space, which is great for professional photo editing.

9.4 SDR Color Volume
What it is: How much of the SDR color spaces the monitor can reproduce
When it matters: General usage and SDR media creation
Score components:
sRGB in ICtCp
What it is: How much of the sRGB colorspace a monitor can display at different luminosity levels
When it matters: Most content, including web, SDR video games, and SDR media creation
:
98.1 %
Adobe RGB in ICtCp
What it is: How much of the Adobe RGB colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness.
When it matters: Professional media creation
:
90.6 %

sRGB Picture Mode: User
Adobe RGB Picture Mode: User

Excellent SDR color volume. It can display most colors in its gamut at almost all brightness levels, but can't display dark saturated colors very well. Saturated colors are almost as bright as pure white, except for blues which, like most displays, aren't as bright as pure white.

7.4 HDR Color Gamut
What it is: The monitor's ability to reproduce HDR color spaces
When it matters: HDR content consumption or media creation
Score components:
Wide Color Gamut
What it is: Whether the monitor can support wider color gamuts
When it matters: HDR content and media creation
:
Yes
DCI P3 xy
What it is: Coverage of the DCI P3 colorspace on CIE 1931 xy
When it matters: When consuming or producing HDR content.
:
80.0 %
Rec. 2020 xy
What it is: Coverage of the Rec.2020 colorspace on CIE 1931 xy.
When it matters: When consuming or producing HDR content.
Good value: > 90%
Noticeable difference: 5%
:
68.8 %

DCI P3 Picture Mode: HDR→ HDR400
Rec. 2020 Picture Mode: HDR→HDR400

Decent HDR color gamut. Unlike the VG271, this monitor can display a wide color gamut, which is great, although it's a relatively minor difference and most people won't notice it.

5.8 HDR Color Volume
What it is: How much of the HDR color spaces a monitor can display at different luminosity levels.
When it matters: HDR content consumption and production. Includes streaming services, UHD Blu-rays and HDR games.
Score components:
DCI-P3 in ICtCp
What it is: How much of the DCI-P3 colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness output.
When it matters: HDR content.
Good value: 80%
Noticeable difference: 5%
:
56.4 %
Rec. 2020 in ICtCp
What it is: How much of the Rec. 2020 colorspace a monitor can display at different luminosity levels, normalized to the monitor's peak brightness output.
When it matters: HDR content.
Good value: 80 %
Noticeable difference: 5 %
:
59.2 %

DCI P3 Picture Mode: HDR→ HDR400
Rec. 2020 Picture Mode: HDR→HDR400

Disappointing HDR color volume, slightly worse than the VG271. Colors aren't as bright as pure white, and it can't display dark saturated colors very well.

10 Image Retention
What it is: How much a static image is retained on a monitor screen after a certain amount of time.
When it matters: When working or playing video games on your PC monitor.
IR after 0 min recovery
What it is: Image retention measured right after the static image exposure, without recovery time.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 2 min recovery
What it is: Image retention measured after a recovery time of 2 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect
Noticeable difference: 0.015%
:
0.00 %
IR after 4 min recovery
What it is: Image retention measured after a recovery time of 4 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 6 min recovery
What it is: Image retention measured after a recovery time of 6 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 8 min recovery
What it is: Image retention measured after a recovery time of 8 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 10 min recovery
What it is: Image retention measured after a recovery time of 10 minutes.
When it matters: When changing use or right after changing the type of on screen content (i.e. stopping playing video game to watch a movie).
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %

There are no signs of temporary image retention on this monitor, which is great.

9.8 Gradient
What it is: How finely levels of color can be displayed.
When it matters: Details in shadows, sky and skin tones. Matters more for HDR content.
Score components: Subjectively assigned
Color Depth
What it is: Number of bits per pixel to represent a specific color. Note: we consider 8-bit with dithering to be equivalent to 10-bit, as long as the 10-bit gradient looks smooth.
When it matters: HDR content like HDR video games or HDR UHD movies. Won't matter for regular Blu-ray movies, SDR video game or desktop environment content displayed from a Windows PC. Those are limited to 8-bit color.
Good value: 10-bit.
Noticeable difference: 1 bit.
:
10 Bit

Excellent gradient performance, with very little banding. There is a noticeable hard line in the bottom blue line, this is noticeable on the monitor.

The gradient was measured with 10-bit color, which is only possible at 120Hz and not at the monitor's native 144Hz refresh rate. At 144Hz, the color depth is limited to 8-bit, and there is more noticeable banding.

7.5 Color Bleed
What it is: How much the color from one area of the screen affects the color in another area of the screen.
When it matters: All usages, but especially media creation.
Score components:
Pixel row error
What it is: The amount of bleed that appears across the screen horizontally.
When it matters: General usage of a PC monitor, can appear when browsing the web or with media creation like graphics.
Good value: <0.2%
Noticeable difference: 0.1%
:
0.001 %
Pixel column error
What it is: Amount of color bleeding that appears across the screen vertically.
When it matters: Most uses of a PC monitor. Can appear while browsing the web or when editing images or graphics.
Good value: <0.2%
Noticeable difference: 0.1%
:
0.490 %

Unfortunately, there are noticeable signs of color bleed on the Acer VG271U, even slightly more than the VG271. This isn't very noticeable in real content, though, and it might vary between units.

7.0 Reflections
What it is: How much light is reflected by the TV.
When it matters: Bright rooms.
Score components: Subjectively assigned

Decent reflection handling, similar to the Gigabyte Aorus AD27QD. Direct reflections aren't fully diffused across the screen, and they may be distracting in a bright room.

9.1

Motion

Score components:

The Acer Nitro VG271U has great motion handling, nearly identical to the VG271. It has an excellent response time, flicker-free backlight, and an optional black frame insertion feature. It has an excellent refresh rate, and it supports FreeSync variable refresh rate technology even when connected to a recent NVIDIA graphics card, but there is no factory overclock.

8.9 Motion Blur
What it is: The performance of the pixel response time. Poor response time causes trails to follow moving objects. Response time is one of a few sources of motion blur.
When it matters: When there's fast movement on screen, such as during video games and sports.
Score components:
80% Response Time
What it is: How quickly pixels can reach 80% of a full transition from one color to another.
When it matters: When there's fast movement on screen, such as during video games and sports.
Good value: < 8 ms
Noticeable difference: 4 ms
:
5.2 ms
100% Response Time
What it is: How quickly pixels can fully transition from one color to another.
When it matters: When there's fast movement on screen, such as during video games and sports.
Good value: < 20 ms
Noticeable difference: 10 ms
:
10.9 ms
Best Overdrive Setting
What it is: If the monitor has adjustable pixel overdrive settings, which one produces the best response time with minimal overshoot.
When it matters: When adjusting the monitor's settings to get the least possible motion blur.
:
Normal

Response Time Off
Response Time Normal
Response Time Extreme

The VG271UP has an excellent response time, and there is very little blur behind fast-moving objects. The level of overdrive can be changed between three settings: 'Off', 'Normal', and 'Extreme'. We recommend the 'Normal' setting, as the 'Extreme' setting has severe overshoot in some transitions, especially in dark scenes. The overdrive must be set to either 'Normal' or 'Off' before enabling FreeSync. Conversely, FreeSync can't be enabled if the overdrive is set to 'Extreme'.

At 144Hz, the VG271UP is limited to an 8-bit color depth. 10-bit is only supported at 120Hz, which likely has a slightly slower response time.

9.0 Image Flicker
What it is: Luminosity pattern when displaying images
When it matters: Nearly all the time during PC monitor use, but especially during fast movement such as video games
Flicker-free : Yes
PWM Dimming Frequency
What it is: Flickering pattern at different luminosities.
When it matters: For people sensitive to flickering.
Good value: N/A or high frequencies (> 300 Hz). Frequencies that are multiples of 60Hz are better.
:
0 Hz
Black Frame Insertion (BFI)
What it is: Option to turn screen black between frames
When it matters: Reduces eye tracking blur in motion
Good value: Yes
:
Yes
BFI Maximum Frequency
What it is: Highest possible frequency of flickering pattern
When it matters: Reduces eye-tracking blur in motion
Good value: Matches the native refresh rate
Noticeable difference: 20 Hz
:
144 Hz
BFI Minimum Frequency
What it is: Lowest possible frequency of flickering pattern
When it matters: Reduces eye-tracking blur in motion
Good value: 60 Hz
Noticeable difference: 20 Hz
:
120 Hz

The VG271UP is completely flicker-free, which is great. Like the VG271, there is an optional black frame insertion (BFI) feature known as VRB, and there are two modes, 'Normal' and 'Extreme'. The charts above were taken in the 'Extreme' mode. The 'Normal' setting is a bit brighter, as shown here, but slightly less effective at reducing blur, as you can see in this motion photo.

Note that BFI is only available if the source refresh rate is at least 120Hz, and it can't be used simultaneously with FreeSync.

9.2 Refresh Rate
What it is: How frequently the monitor can refresh and show new frames, and whether it can vary its refresh rate in real time using technologies like G-sync and FreeSync.
When it matters: Mostly for gaming, but does provide a little better motion during normal usage.
Native
What it is: The frequency at which the monitor is capable of displaying images every second
When it matters: General usage, but better results are most important for gaming
Good value: >100 Hz
Noticeable difference: 15 Hz
:
144 Hz
Factory Overclock
What it is: The frequency at which the monitor's can be boosted to using its internal menu.
When it matters: Gaming and other usages where high frame rate content is consumed.
Good value: >100
Noticeable difference: 15
:
N/A
Variable Refresh Rate
What it is: Feature that allows the monitor to synchronize its refresh rate with the input device's output and reduces stuttering and screen tearing.
When it matters: Almost every usage, but is most noticeable in gaming where constant fluctuation in framerate cause distracting artifacts.
:
FreeSync
G-SYNC Compatible
What it is: We test for FreeSync compatibility with an NVIDIA GTX1060. We check for any excess blur, screen blanking, or excess tearing, and confirm the variable refresh rate range.
When it matters: If you have an NVIDIA graphics card.
Good value: Yes
:
Yes
VRR Maximum
What it is: The maximum frequency covered by the Variable Refresh Rate feature of the monitor.
When it matters: Any time the VRR feature is enabled.
Good value: Matches Refresh rate
Noticeable difference: 10 Hz
:
144 Hz
VRR Minimum
What it is: The lowest frequency covered by the monitor's Variable Refresh Rate feature.
When it matters: When using the VRR feature of the monitor at lower frame rates.
Good value: 30 Hz
:
< 20 Hz
VRR Maximum With OC
What it is: The maximum frequency covered by the Variable Refresh Rate feature when the monitor's overclocking feature is used.
When it matters: When both the overclocking and VRR features are used.
Good value: Matching the overclocked refresh rate.
Noticeable difference: 10 hz
:
N/A
VRR Supported Connectors : DisplayPort, HDMI

The VG271U has an excellent refresh rate. It supports FreeSync, even when connected to a recent NVIDIA graphics card, although this model isn't officially supported by NVIDIA.

Note that FreeSync isn't available if the overdrive is set to 'Extreme' or if the black frame insertion feature is enabled.

9.1

Inputs

Score components:

The Acer VG271U has excellent low input lag, even when connected to a 60Hz source, like a game console. The 27", 1440p screen is great for multitasking and delivers a sharper image than the 1080p version of this monitor, the VG271. This monitor has a good selection of inputs, and you shouldn't have any issues connecting your devices.

9.6 Input Lag
What it is: Delay between input and onscreen reaction.
When it matters: General usage of the mouse and gaming.
Native Resolution
What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying its native resolution at its native refresh rate.
When it matters: General usage and while playing video games.
Good value: < 15 ms
Noticeable difference: 5 ms
:
4.1 ms
Non-Native Res @ Native Refresh
What it is:

Lowest input lag possible at the center of the screen, when the monitor is displaying an alternative resolution at its native refresh rate. The non-native resolution tested depends on the native resolution of the monitor, following this pattern unless otherwise specified in the Input Lag text:

Native Resolution Non-Native Resolution Tested
4k UHD QHD
QHD FHD
FHD 1600x900
3440x1440 2560x1080
2560x1080 1920x1080
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
N/A
Native Resolution @ 60 Hz
What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying its native resolution at a refresh rate of 60 Hz.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
8.4 ms
Variable Refresh Rate
What it is: Lowest input lag possible at the center of the screen, when the monitor is using its Variable Refresh Rate feature at its native resolution.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
4.2 ms
HDR
What it is: Lowest input lag possible at the center of the screen, when the monitor is displaying an HDR signal at its native resolution and refresh rate.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
4.8 ms
Black Frame Insertion (BFI)
What it is: Lowest input lag possible at the center of the screen, when BFI is enabled and the monitor is displaying a signal at the highest supported BFI refresh rate.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
7.0 ms

Outstanding low input lag, even when connected to a 60Hz source like a game console. As 10-bit color is only supported at 120Hz, we measured the HDR input lag at 120Hz. The other input lag measurements were taken at 144Hz.

8.4 Resolution and Size
What it is: The number of pixels the monitor can display, and the surface area of its screen.
When it matters: All usages, but especially for office and media editing.
Score components:
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

This monitor has a great 27", 1440p screen, which makes it easier to multitask than on the VG271, which has a native resolution of 1080p.

Inputs
Total Inputs
DisplayPort : 1 (DP 1.4)
Mini DisplayPort : No
HDMI : 2 (HDMI 2.0)
DVI : No
VGA : No
DisplayPort Out : No
USB : No
USB C : No
Analog Audio Out 3.5mm : 1
Microphone In 3.5mm : No
Digital Optical Audio Out : No
Analog Audio Out RCA : No

There is a headphone jack on the monitor, and the volume can be controlled from the monitor's on-screen display.

Features

The Acer Nitro VG271UP is a basic gaming monitor with few additional features. It supports HDR10, picture-in-picture, and picture-by-picture, and it can add crosshairs to any game. Unfortunately, it can be difficult to navigate the OSD, as the controls aren't very intuitive.

Additional Features
What it is: Additional features found on the monitor
Speakers
What it is: Whether or not the monitor features standalone speakers.
When it matters: When using your computer without headphones or a dedicated pair of speakers.
:
Yes
HDR10 : Yes

There are a few additional features on the VG271U, but it lacks many of the advanced gaming features found on more expensive models, like the Gigabyte Aorus AD27QD. There is an option to add virtual crosshairs, and it supports picture-in-picture and picture-by-picture.

On-Screen Display (OSD)
Controls

The controls are located on the back, right-hand side of the monitor. The controls aren't very intuitive, unfortunately, and it can take some time getting used to navigating the menus.

In The Box

  • User Guide
  • Power Cable
  • HDMI Cable

Differences between Sizes and Variants

We tested the 27" VG271UP, version Pbmiipx, model UM.HV1AA.P01, which is the only size available. The VG271UP is part of Acer's Nitro VG1 lineup, which has other models available. We do not expect our review to be valid for the other models.

If someone comes across a different type of panel or if their VG271UP 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 Part Number Size Resolution Refresh Rate Notes
VG240Y UM.QV0AA.002 24" 1080p 75Hz FreeSync, no HDR
VG271 UM.HV1AA.P02 27" 1080p 144Hz FreeSync, HDR
VG271UP UM.HV1AA.P01 27" 1440p 144Hz FreeSync, HDR

The VG271UP we reviewed was manufactured in November 2018.

Compared to other Monitors

Left: Acer Nitro VG271. Middle: Acer VG271UP. Right: ASUS ViewSonic XG2402.
Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The Acer VG271UP is a great gaming monitor, but there are better options available for less. See our recommendations for the best monitors, the best 27 inch gaming monitors, and the best budget monitors.

Dell S2719DGF

The Acer VG271UP is better than the Dell S2719DGF. The VG271UP has much better viewing angles, better gray uniformity, and it supports HDR. The VG271UP also has an optional black frame insertion feature.

ASUS VG279Q

The ASUS VG279Q is a bit better overall than the Acer VG271UP, depending on your usage. The VG279Q has much better ergonomics and better black uniformity, although the black uniformity varies between units. The VG271UP, on the other hand, has a higher native resolution, and it supports HDR, so it might be better for some people, especially if you plan on VESA mounting the monitor and ergonomics don't matter to you.

Acer Nitro VG271

The Acer Nitro VG271 and the Acer Nitro VG271UP are extremely similar. The VG271UP has a higher native resolution, but unfortunately, the unit we tested has terrible black uniformity. The VG271 is significantly brighter in SDR, but there are no other significant differences between these two models.

Dell S2417DG

The Acer VG271UP is slightly better than the Dell S2417DG. The VG271UP supports HDR, has a larger screen, and has much better viewing angles. The Dell S2417DG, on the other hand, has a much better stand with excellent ergonomics, and it supports G-SYNC instead of FreeSync.

Dell S2716DGR/S2716DG

The Acer VG271UP is a bit better than the Dell S2716DGR. The VG271UP supports HDR, has much better viewing angles, and better gray uniformity. The Dell S2716DG, on the other hand, has a faster response time, a much more versatile stand, and it supports G-SYNC instead of FreeSync.

+ Show more

Conclusion
SEE PRICE
Amazon.com

7.6 Mixed Usage
Score components:
The Acer VG271U is a good monitor for most uses. The low input lag, fast response time, and FreeSync support make it a good monitor for gaming. The 1440p resolution makes it easier to multitask, and it's great for office use or media creation. Although it supports HDR and can display a wide color gamut, it can't get very bright in HDR and can't display deep blacks in a dark room.
7.5 Office
Good monitor for office use. It has great screen real-estate and very good viewing angles. It looks good in most rooms, as it has decent reflection handling and good peak brightness. Unfortunately, the stand has bad ergonomics, and can only tilt.
Overall, this is a great monitor for gaming. It has outstanding low input lag, an excellent response time, and it supports FreeSync. The high-resolution screen is great for gaming, as you can see more fine details in your favorite games. Unfortunately, the stand has bad ergonomics, and can only tilt.
This is a good monitor for multimedia. The 1440p resolution is great for watching videos, and the wide viewing angles are great for sharing your favorite clips with a few friends. Unfortunately, it doesn't look great in a dark room, as it has terrible black uniformity.
Good monitor for media creation. The 1440p, 27" screen is great for multitasking and makes it easier to see more of your work at once. It has wide viewing angles, which is great, but the stand has bad ergonomics, and can only tilt. This monitor has a great SDR color gamut and has excellent coverage of the Adobe RGB color space.
6.5 HDR Gaming
Decent monitor for HDR gaming. It has low input lag and an excellent response time, and it supports FreeSync, which is great. It can display a wide color gamut, but it can't get very bright in HDR, and can't display deep blacks in a dark room.

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