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Reviewed on Sep 04, 2018

Acer G257HU/G7 Series MONITOR REVIEW

Usage Ratings - Version 1.0
6.8
Mixed Usage
7.0
Office
7.3
Gaming
6.7
Multimedia
6.6
Media Creation
4.9
HDR Gaming
Size : 25"
Resolution : 2560x1440
Refresh Rate : 60 Hz
LCD Type
:
IPS
Variable Refresh Rate
:
No

The Acer G257HU is a decent 1440p IPS monitor with decent picture quality and great peak brightness. The IPS display delivers good viewing angles but has very bad black uniformity. It has excellent low input lag, but gamers will be disappointed by the limited 60Hz refresh rate and lack of VRR.

Test Results
Design 6.0
Picture Quality 6.2
Motion 7.1
Inputs 8.7
Pros
  • Picture remains accurate when viewed at an angle
  • Great response time
Cons
  • Terrible black uniformity
  • Stand has bad ergonomics
  • Temporary image retention could be distracting

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6.0

Design

Curved : No
Curve radius : N/A
Weight (without stand)
:
N/A
Weight (with stand)
:
7.2 lbs (3.3 kg)

The Acer G257HU has a mediocre design. The stand cannot be removed, and unlike most monitors currently on the market, it cannot be VESA mounted. The stand is extremely basic, and has bad ergonomics. It has a narrow tilt range but cannot swivel and there is no height adjustment.

Stand
Width
:
10.0" (25.4 cm)
Depth
:
7.3" (18.5 cm)

The stand supports the monitor well, but it has a large footprint and cannot be removed. The stand creaks when moved or adjusted and does not seem well built.

2.2 Ergonomics
Height Adjustment
:
N/A
Switch portrait/landscape : No
Swivel Range : N/A
Tilt Range : -15° to 5°

Bad ergonomics. There is no height adjustment, and it doesn't swivel. There is a very limited tilt range.

Back
Wall Mount : N/A

Very plain back. The Acer G257HU cannot be VESA mounted, and there is no cable management.

Borders
Borders
:
0.3" (0.8 cm)

There is no gap between the bezel and the screen. The borders are not distractedly large, but they aren't thin either.

Thickness
Thickness (with stand)
:
4.5" (11.4 cm)
Thickness (without stand)
:
1.6" (4.1 cm)

The monitor looks good from the side. The stand prohibits the monitor from being placed too close to the wall.

6.0 Build Quality

Mediocre build quality. While there are no major issues with the build, there is nothing that stands out either.

6.2

Picture Quality

The Acer G257HU delivers mediocre picture quality. It has a decent contrast ratio, great peak brightness, and  good horizontal viewing angles. Colors are accurately reproduced once calibrated and it has excellent coverage of the smaller s.RGB color space, but limited coverage of the wider Adobe RGB color space, which is disappointing for professional users in the print and marketing industries. Unfortunately, it has bad black uniformity and doesn't support HDR, nor does it have a local dimming feature. It also shows signs of temporary image retention, even 10 minutes after our test clip ended.

6.6 Contrast
Native Contrast
:
1422 : 1
Contrast with local dimming
:
N/A

The G257HU has a decent contrast ratio that is above average for an IPS monitor. The only IPS monitors that perform better are the HP V320 and the LG 34UC79G-B.

0 Local Dimming
Local Dimming
:
No
Backlight
:
Edge

The Acer G7 Series G257HU does not have local dimming. The above video is for reference only.

8.0 SDR Peak Brightness
SDR Real Scene
:
351 cd/m²
SDR Peak 2% Window
:
361 cd/m²
SDR Peak 10% Window
:
366 cd/m²
SDR Peak 25% Window
:
365 cd/m²
SDR Peak 50% Window
:
365 cd/m²
SDR Peak 100% Window
:
364 cd/m²
SDR Sustained 2% Window
:
360 cd/m²
SDR Sustained 10% Window
:
365 cd/m²
SDR Sustained 25% Window
:
364 cd/m²
SDR Sustained 50% Window
:
363 cd/m²
SDR Sustained 100% Window
:
363 cd/m²
SDR ABL
:
0.001

Very good peak brightness in SDR, very similar to the ASUS VG248QE. There is very little variation in brightness across window sizes.

0 HDR Peak Brightness
HDR Real Scene
:
N/A
HDR Peak 2% Window
:
N/A
HDR Peak 10% Window
:
N/A
HDR Peak 25% Window
:
N/A
HDR Peak 50% Window
:
N/A
HDR Peak 100% Window
:
N/A
HDR Sustained 2% Window
:
N/A
HDR Sustained 10% Window
:
N/A
HDR Sustained 25% Window
:
N/A
HDR Sustained 50% Window
:
N/A
HDR Sustained 100% Window
:
N/A
HDR ABL
:
N/A

HDR is not supported.

7.5 Horizontal Viewing Angle
Color Shift from Left
:
42 °
Color Shift from Right
:
42 °
Brightness from Left
:
50 °
Brightness from Right
:
49 °
Black Level from Left
:
75 °
Black Level from Right
:
75 °
Curve Radius : N/A

Very good horizontal viewing angles. The image doesn't degrade when viewed at an angle, which is good for sharing your work with a colleague, and the edges don't fade when sitting close to the screen either.

6.2 Vertical Viewing Angle
Color Shift from Below
:
26 °
Color Shift from Above
:
29 °
Brightness from Below
:
35 °
Brightness from Above
:
36 °
Black Level from Below
:
20 °
Black Level from Above
:
24 °

Mediocre vertical viewing angles, which can be a problem as the stand has very little adjustments, so it is harder to be in an optimal vertical viewing position.

8.7 Gray Uniformity
50% Std. Dev.
:
2.552 %
50% DSE
:
0.115 %
5% Std. Dev.
:
0.494 %
5% DSE
:
0.055 %

Excellent gray uniformity. There are some brighter spots in the center but these shouldn't be too distracting.

1.8 Black Uniformity
Native Std. Dev.
:
4.782 %
Std. Dev. w/ L.D.
:
N/A

Bad black uniformity. While IPS monitors typically have bad uniformity, this is worse than most. Only the HP 22CWA and LG 29UM69G-B are worse. There is noticeable backlight bleed and flashlighting is a major issue. This is not a good monitor for dark room use.

5.4 Pre Calibration
Picture Mode
:
User
Luminance
:
297 cd/m²
Luminance Settings
:
75
Contrast Setting
:
50
RGB controls
:
100-100-100
Color Temperature
:
6052 K
White Balance dE
:
4.66
Color dE
:
4.78
Gamma
:
1.90

Disappointing color accuracy out of the box. The most accurate picture mode is 'User -> User'. The gamma curve does not follow our target at all, and most scenes are significantly darker than they should be. White balance is significantly higher than our threshold of 3 and it is noticeable to most people even when browsing the web. Colors are just as bad.

9.6 Post Calibration
Picture Mode
:
User
Luminance
:
101 cd/m²
Luminance Settings
:
18
Contrast Setting
:
50
RGB Controls
:
98-100-99
Color Temperature
:
6463 K
White Balance dE
:
0.62
Color dE
:
0.52
Gamma
:
2.18

After calibration, the Acer G7 Series G257HU has excellent accuracy. Color and White Balance dEs are much closer to the target, and most people won't be able to tell the difference. The gamma curve is almost perfectly corrected.

We chose the 'User' picture mode, as it provides the most control over the settings.

You can download our ICC profile calibration here.

8.7 SDR Color Gamut
sRGB xy
:
98.5 %
Adobe RGB xy
:
75.8 %

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

Excellent coverage of the s.RGB color gamut, which is great for daily usage, but professional users in the print and publishing industries will be disappointed by the limited Adobe RGB coverage. The 'Graphics' picture mode did not improve the color gamut coverage.

8.8 SDR Color Volume
sRGB in ICtCp
:
94.7 %
Adobe RGB in ICtCp
:
80.7 %

sRGB Picture Mode: User
Adobe RGB Picture Mode: User

Excellent color volume. Most of the gaps in the color volume are due to the gaps in the color space. The limited contrast ratio limits the G257HU's ability to produce deep, dark colors.

0 HDR Color Gamut
Wide Color Gamut
:
No
DCI P3 xy
:
N/A
Rec. 2020 xy
:
N/A

HDR gamuts are not supported.

0 HDR Color Volume
DCI-P3 in ICtCp
:
N/A
Rec. 2020 in ICtCp
:
N/A

HDR color volumes are not supported.

1.3 Image Retention
IR after 0 min recovery
:
0.54 %
IR after 2 min recovery
:
0.54 %
IR after 4 min recovery
:
0.35 %
IR after 6 min recovery
:
0.29 %
IR after 8 min recovery
:
0.14 %
IR after 10 min recovery
:
0.09 %

The Acer G257HU shows signs of image retention, even after a 10 minute cooldown from our test clip.

7.3 Gradient
Color Depth
:
8 Bit

The Acer G257HU has one of the worst gradient performance that we have measured. There is 8 bit banding in all colors.

10 Color Bleed
Pixel row error
:
0.000 %
Pixel column error
:
0.000 %

Perfect color control, there is no bleed between pixels.

7.5 Reflections

Good reflection handling, similar to most monitors we have tested. The screen remains clear with a decent amount of ambient light but can't overcome strong glare in a bright room.

7.1

Motion

The Acer G257HU has decent motion handling. It has a great response time, so motion is clear without much blur. The backlight is flicker-free, which is great, but it doesn't have any option to introduce flicker to further clear up motion. The standard 60Hz refresh rate is fine for most uses but gamers might find it too low and it doesn't support FreeSync or G-SYNC.

8.4 Motion Blur
80% Response Time
:
6.0 ms
100% Response Time
:
13.9 ms
Best Overdrive Setting
:
Off

OD Off
OD Normal
OD Extreme

The Acer G257HU has a great fast response time, slightly better than the Dell P2417H. The best setting is with OD 'Off', as 'Normal' and 'Extreme' introduce a lot of overshoot but don't help the response time. With the 'off' setting there is no overshoot in any of the transitions.

7.5 Image Flicker
Flicker-free : Yes
PWM Dimming Frequency
:
0 Hz
Black Frame Insertion (BFI)
:
No
BFI Maximum Frequency
:
N/A
BFI Minimum Frequency
:
N/A

The G7 G257HU smidpx is flicker-free and uses DC dimming to dim the backlight, so there are no duplications in moving objects. It can't introduce flicker to reduce motion blur.

6.7 Refresh Rate
Native
:
60 Hz
Factory Overclock
:
N/A
Variable Refresh Rate
:
No
G-SYNC Compatible
:
No
VRR Maximum
:
N/A
VRR Minimum
:
N/A
VRR Maximum With OC
:
N/A
VRR Supported Connectors : N/A

The Acer G257HU does not support a variable refresh rate.

8.7

Inputs

The G257HU has excellent low input lag, about as good as it can get for a 60 Hz monitor. The native 1440p resolution is great for most uses, given the size of the screen. It has a good selection of input types, but unfortunately only 1 of each.

9.0 Input Lag
Native Resolution
:
8.4 ms
Non-Native Res @ Native Refresh
:
8.6 ms
Native Resolution @ 60 Hz
:
8.4 ms
Variable Refresh Rate
:
N/A
10 bit HDR
:
N/A
Black Frame Insertion (BFI)
:
N/A

Excellent low input lag, one of the lowest of any 60Hz monitor we have tested. It is consistent across any input resolution, great for gaming at a lower resolution.

8.3 Resolution and Size
Native Resolution : 2560 x 1440
Aspect Ratio : 16:9
Megapixels : 3.7 MP
Pixel Density : 118 PPI
Screen Diagonal : 25.0 inches
Screen Area : 266 sq inches

The QHD resolution is great for this size of screen. The resolution is high enough that individual pixels aren't noticeable.

Inputs
Total Inputs
DisplayPort : 1 (DP 1.2)
Mini DisplayPort : No
HDMI : 1 (HDMI 1.4)
DVI : 1 (DVI-D, dual link)
VGA : No
DisplayPort Out : No
USB : No
USB C : No
Analog Audio Out 3.5mm : 1
Microphone In 3.5mm : 1
Digital Optical Audio Out : No
Analog Audio Out RCA : No
Power Supply : Internal

There is a headphone out port with adjustable volume. This is decent for connecting speakers or headphones to your monitor, but the DAC might cause some loss in sound quality compared to if you connected your speakers directly to your computer.

Features

The Acer G257HU has a very limited set of features. The On-Screen Display and controls are not very intuitive and can be hard to navigate. It doesn't have any USB charging ports or additional features.

Additional Features
Speakers
:
Yes
HDR10 : No
Multiple input display
:
No

This monitor has a limited set of features. There are internal speakers, and a 3.5mm output to connect external speakers or headphones. It doesn't support HDR and has no USB charging ports.

On-Screen Display (OSD)

Changing some of the settings causes the brightness to reset back to the maximum setting.

Controls

The controls are not very intuitive, and the buttons themselves are quite small so it can get some getting used to.

In The Box

  • HDMI Cable
  • DisplayPort Cable
  • 3.5mm to 3.5mm cable
Not shown:
  • Power Cable

Differences between Sizes and Variants

We tested the Acer G257HU, which is a 25" 1440p monitor. 

If someone comes across a different type of panel or if their monitor doesn't correspond to our review, let us know and we will update the review. Note that some tests such as the gray uniformity may vary between individual units.

Model Size Panel Type Resolution Native Refresh
G247HYL 24" IPS 1080p 60Hz
G257HU 25" IPS 1440p 60Hz
G257HL 25 IPS 1080p 60Hz

Our G257HU was manufactured in Feb. 2017.

Compared to other Monitors

Left: LG 29UM69G-B. Middle: Acer G257HU. Right: Asus VG248QE
Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The Acer G257HU is a decent 1440p IPS monitor, but there are better choices out there that are much cheaper. See our recommendations for the best monitors under $200, the best budget gaming monitors, and the best 1440p monitors.

Dell U2515H
SEE PRICE
Amazon.com

The Dell U2515H is much better than the Acer G257HU. The design of the U2515H is far superior, with far more ergonomic adjustments as well as VESA mounting ports. The U2515H has much better gradient handling with less banding, and is free of distracting temporary image retention. The U2515H also has better features, including the ability to daisy chain to another monitor, as well as USB charging ports.

LG 27UK650-W
SEE PRICE
Amazon.com

The Acer Predator X27 is slightly better than the LG 27UK650-W. The Acer Predator X27 supports local dimming and has better HDR performance thanks to its wider color gamut and higher HDR peak brightness. The LG 27UK650-W has slightly lower input lag and feels more responsive, and this is excellent for gaming.

ASUS VG248QE
SEE PRICE
Amazon.com

The ASUS VG248QE is better than the Acer G257HU. The VG248QE has a higher refresh rate that delivers a nearly instantaneous response time, and the backlight can introduce flicker to further reduce motion blur. The VG248QE has lower input lag, great for gaming. The Acer G257HU has a higher native resolution, but at this size, this doesn't have a significant impact on the overall quality.

Acer GN246HL
SEE PRICE
Amazon.com

The Acer G257HU is better than the Acer GN246HL. They both deliver similar overall picture quality, but the G257HU has wider viewing angles. The G257HU has a flicker-free backlight. The Acer GN246HL has a higher refresh rate and better response time, great for gaming.

LG 24MP59G-P
SEE PRICE
Amazon.com

The LG 24MP59G is slightly better than the Acer G257HU. Both monitors have an IPS panel with wide viewing angles. The Acer G257HU has a simple 60Hz refresh rate and no VRR support, whereas the LG 24MP59G has a better 75Hz refresh rate, and supports FreeSync VRR. The Acer has a slightly larger, 25" screen, and a much better 1440p resolution, better for multitasking or for a more immersive gaming or multimedia experience.

HP 27Q
SEE PRICE
Amazon.com

The HP 27Q is somewhat better than the Acer G257HU. The HP 27Q has a better refresh rate that leaves a smaller blur trail in fast-moving content and has more screen area as it is a 27" monitor. The Acer G257HU, on the other hand, has a better input lag which makes it more responsive to your inputs and can be great for many usages.

ASUS VG245H
SEE PRICE
Amazon.com

The ASUS VG245H is somewhat better than the Acer G257HU. The ASUS has a much better design, with a stand that can be easily adjusted to an optimal viewing position. The Acer G257HU is a bit brighter and has better wide viewing angles. The VG245H has a faster response time and produces clearer motion with less blur, and supports FreeSync VRR for gaming.

+ Show more
6.8 Mixed Usage

Decent monitor for mixed usage. It has an excellent contrast ratio, but very bad black uniformity so it isn't a good choice for a dim room. The stand is mediocre and has almost no ergonomic adjustments, and it can't be VESA mounted. The IPS panel delivers good viewing angles and excellent gray uniformity.

7.0 Office

Decent monitor for use in an office setting. It has wide viewing angles and a high 1440p resolution, good for multitasking or sharing your work with others. The stand is mediocre and has very few adjustments so it is hard to place it in an ideal viewing position. Great peak brightness and good reflection handling make it a good choice for a brighter room.

7.3 Gaming

This is a decent monitor for gaming. It has decent motion handling, with a great response time and no flicker. It has excellent low input lag, but gamers might find the 60 Hz refresh rate too low and will be disappointed by the lack of FreeSync or G-Sync. The 1440p resolution is a great balance of higher detail without needed a top-end graphics card for most games.

6.7 Multimedia

Decent for watching videos and movies as long as you are in a bright room due to the horrible black uniformity. It has good viewing angles and good reflection handling, so you can easily share a video with multiple people.

6.6 Media Creation

Decent monitor for creating media. The 1440p resolution makes it easier to multitask or to see more of high-resolution files. It has excellent color accuracy once calibrated, and good coverage of the s.RGB color space, but professionals in media creation fields will find the Adobe RGB coverage too limiting.

4.9 HDR Gaming

The Acer G7 Series G257HU does not support HDR.

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