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Acer GN246HL
MONITOR REVIEW

Usage Ratings - Version 1.0
6.5
Mixed Usage
6.5
Office
7.1
Gaming
6.4
Multimedia
6.3
Media Creation
4.9
HDR Gaming
Size : 24 "
Resolution : 1920x1080
Refresh Rate : 144 Hz
LCD Type
:
TN
Variable Refresh Rate
:
No

The Acer GN246HL is a decent 1080p gaming monitor. It has a TN panel with decent picture quality when viewed from directly in front, but the viewing angles are very narrow so even at a slight angle the image looks washed out. It is also possible to flicker the backlight to clear up fast motion for gamers, but it doesn't support more advanced features like FreeSync.

Test Results
Design 7.0
Picture Quality 6.2
Motion 7.9
Inputs 8.0
Pros
  • 144Hz refresh rate feels smooth
  • Excellent response time
Cons
  • Picture deteriorates rapidly when viewed at an angle
  • Blacks are gray and blotchy when viewed in a dark room

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7.0

Design

Curved : No
Curve radius : N/A
Weight (without stand)
:
6.5 lbs (2.9 kg)
Weight (with stand)
:
7.5 lbs (3.4 kg)

The design of the Acer GN246HL is basic with a good build quality. It's entirely made of plastic and does not feel high-end or look stylish. The stand supports the monitor well and there is no provision for cable management. Adjustment options are only limited to tilt, which can make it hard to position it into a comfortable viewing position or to rotate it for sharing. It is a very thin and lightweight monitor, allowing mobile professionals to set up an office pretty much anywhere.

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

The X-shaped stand supports the monitor well. It has a fairly small footprint but feels sturdy.

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

The ergonomic options are extremely limited. The tilt is the only adjustment available and it may be hard to position the monitor in a comfortable position.

Back
Wall Mount : VESA 100x100

The rear of the monitor is quite plain. All the inputs are pointed outwards and there is no cable management.

Borders
Borders
:
0.2" (0.5 cm)

The borders are made of plastic and have an average thickness.

Thickness
Thickness (with stand)
:
4.7" (11.9 cm)
Thickness (without stand)
:
1.6" (4.1 cm)

Without the stand, the monitor is one of the thinnest we have tested so far.

7.0 Build Quality

The build quality of the Acer GN246HL is okay. It is is almost entirely made of plastic, but does feel well constructed.

6.2

Picture Quality

The picture quality of the Acer GN246HL is decent. The monitor can display great colors when calibrated properly, and as long as it is viewed from the front since the viewing angles are bad. The brightness is adequate for a bright room, but the black uniformity is disappointing and easily noticeable in dim environments, especially in dark scenes. Color bleeding and image retention are not an issue whereas you might notice some slight dark color banding. As a typical TN monitor, its contrast is okay but falls behind the performance of VA monitors. 

6.0 Contrast
Native Contrast
:
994 : 1
Contrast with local dimming
:
N/A

The Acer GN246HL has a mediocre native contrast ratio, in line with other TN monitors. In dark environments, blacks look more like gray. However, when viewed in the presence of ambient light this is less noticeable.

0 Local Dimming
Local Dimming
:
No
Backlight
:
Direct

The Acer GN246HL does not have a local dimming feature. The video is for reference only.

8.2 SDR Peak Brightness
SDR Real Scene
:
405 cd/m²
SDR Peak 2% Window
:
414 cd/m²
SDR Peak 10% Window
:
414 cd/m²
SDR Peak 25% Window
:
413 cd/m²
SDR Peak 50% Window
:
412 cd/m²
SDR Peak 100% Window
:
412 cd/m²
SDR Sustained 2% Window
:
413 cd/m²
SDR Sustained 10% Window
:
412 cd/m²
SDR Sustained 25% Window
:
411 cd/m²
SDR Sustained 50% Window
:
411 cd/m²
SDR Sustained 100% Window
:
411 cd/m²
SDR ABL
:
0.000

The SDR peak brightness of the Acer GN246HL is great. It is quite uniform as it doesn't change over time or with different screen content. It will keep you satisfied even in challenging environments.

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

The Acer GN246HL does not support HDR.

5.1 Horizontal Viewing Angle
Color Shift from Left
:
34 °
Color Shift from Right
:
21 °
Brightness from Left
:
53 °
Brightness from Right
:
42 °
Black Level from Left
:
25 °
Black Level from Right
:
13 °
Curve Radius : N/A

The horizontal viewing angle of the GN246Hl is poor. Red shades remain slightly more accurate when viewed at an angle, but the overall behavior is typical of a TN-type LCD monitor. Blacks get noticeably darker with slight moves off the center and picture quality diminishes significantly.

5.8 Vertical Viewing Angle
Color Shift from Below
:
9 °
Color Shift from Above
:
38 °
Brightness from Below
:
12 °
Brightness from Above
:
42 °
Black Level from Below
:
21 °
Black Level from Above
:
43 °

The vertical viewing angle is sub-par. When viewed from below, colors shift quickly and brightness diminishes fast. When looking from above, results are better. The picture is retained at ok levels for bigger angles and this will please those looking at the GN246HL while standing.

7.5 Gray Uniformity
50% Std. Dev.
:
7.878 %
50% DSE
:
0.120 %
5% Std. Dev.
:
1.241 %
5% DSE
:
0.073 %

The gray uniformity is good. Little clouding is noticeable and on the 50% gray picture. The image looks darker towards upper side in the photo. This is the result of the narrow viewing angles, which causes different sides of the screen to appear slightly different colors. However, this should not cause any issues when browsing the web or watching YouTube.

4.6 Black Uniformity
Native Std. Dev.
:
2.920 %
Std. Dev. w/ L.D.
:
N/A

The black uniformity of this monitor is poor. Backlight bleed is evident all over the screen; any dark video content, or dark video game scenes when viewed in a dark room will not look good and black will look more like gray. However, if the monitor is used in brighter rooms such as an office where the dark content is more rare, this will not be an issue.

7.4 Pre Calibration
Picture Mode
:
User
Luminance
:
400 cd/m²
Luminance Settings
:
100
Contrast Setting
:
50
RGB controls
:
Warm
Color Temperature
:
6117 K
White Balance dE
:
3.13
Color dE
:
3.10
Gamma
:
2.28

Out of the box, the accuracy of the GN235HL monitor is decent when the picture mode is set to 'User'. The color temperature is a little warmer than our desired 6500K.

The monitor is missing a lot of blue in the lighter grayscale shade, whereas white balance dE is slightly higher than our 3.0 level, above which we expect most people to start noticing it. Finally gamma, is not far from our 2.2 target, but this is mainly due to the fact that the monitor is brighter in lower input signal values and darker in higher ones

The color accuracy of the monitor is a bit off at 3.1. For some people this might be noticeable.

9.2 Post Calibration
Picture Mode
:
User
Luminance
:
114 cd/m²
Luminance Settings
:
0
Contrast Setting
:
51
RGB Controls
:
98-97-99
Color Temperature
:
6499 K
White Balance dE
:
1.17
Color dE
:
1.16
Gamma
:
2.18

The Acer GN246HL achieves near-perfect color results with a few corrections to the settings. Color Temperature is on Target and Color dE improves considerably. White balance is also almost unnoticeable. The gamma is pretty close to the target of 2.2.

You can download our ICC profile calibration here

8.5 SDR Color Gamut
sRGB xy
:
95.5 %
Adobe RGB xy
:
75.3 %

The Acer GN246HL has a great color gamut. The standard s.RGB color gamut is nearly fully covered, great for home use or for gaming. Coverage of the wider professional Adobe RGB color space is poor, and it is not recommended for professional use.

8.7 SDR Color Volume
sRGB in ICtCp
:
94.8 %
Adobe RGB in ICtCp
:
79.5 %

Great color volume. The Acer GN246HL covers most of the more widely used s.RGB color space, but can't produce deep dark colors. Adobe RGB color volume is good, but limited by its Adobe RGB color gamut.

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

The Acer GN246HL does not support HDR, as such HDR Color Gamuts are not supported.

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

The Acer GN246HL does not support HDR, HDR Color Volumes are not supported.

10 Image Retention
IR after 0 min recovery
:
0.00 %
IR after 2 min recovery
:
0.00 %
IR after 4 min recovery
:
0.00 %
IR after 6 min recovery
:
0.00 %
IR after 8 min recovery
:
0.00 %
IR after 10 min recovery
:
0.00 %

There is no image retention and this is great!

7.8 Gradient
Color Depth
:
8 Bit

The gradient performance of the GN246HL monitor is good. Some 8 bit banding is visible, especially in the dark shades of colors. This should not be an issue in most cases.

10 Color Bleed
Pixel row error
:
0.001 %
Pixel column error
:
0.001 %

The Acer GN246HL does not produce any color bleed.

7.5 Reflections

The reflection handling is good. The light-matte finish diffuses specular reflections across the screen thus reducing their intensity. For most environments this is good, but in well lit rooms, reflections may be distracting.

7.9

Motion

The Acer GN246HL has very good motion handling. There is very little motion blur due to the fast response time, but there is visible corona behind moving objects due to the pixel overshoot. This cannot be reduced as the pixel overdrive cannot be changed. The 246HL uses PWM to dim the backlight, as such there is flicker that is noticeable under certain circumstances. It supports a native refresh rate of 144Hz which is great for fast motion, but it is only supported when connected with DVI-DL.

9.5 Motion Blur
80% Response Time
:
1.5 ms
100% Response Time
:
11.5 ms
Best Overdrive Setting
:
N/A

The Acer GN246HL has an excellent native reponse time but there is a lot of overshoot which causes a visible corona effect to the left of the motion blur logo. Unfortunately, the overdrive is not customizable and the overshoot cannot be reduced.

4.4 Image Flicker
Flicker-free : No
PWM Dimming Frequency
:
216 Hz
Black Frame Insertion (BFI)
:
Yes
BFI Maximum Frequency
:
120 Hz
BFI Minimum Frequency
:
100 Hz

The Acer GN246HL uses PWM to reduce the backlight, and there is flicker at all brightness levels.

There is an optional BFI mode that reduces the flicker frequency to improve motion with 3D content. This feature uses NVIDIA's 3D Lightboost technology. It is possible to modify the system to use this technology all the time. BlurBusters.com has an excellent article that covers how to activate BFI on a Lightboost monitor.

When activated there is a significant change to the color temperature (it is too warm) and this can't be changed. The contrast slider becomes 42 by default, and when raised colors are clipped. Since the BFI mode turns the backlight off for longer periods of time the overall brightness of the screen is significantly reduced to 121 cd/m². The contrast ratio is also reduced to 786 due to the change in colors and contrast slider. The contrast can be adjusted in BFI mode but causes more clipping.

8.0 Refresh Rate
Native
:
144 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 GN246HL has a native refresh rate of 144 Hz but can only reach this refresh rate when connected with a DL-DVI connection. When connected with HDMI the maximum detected resolution is 60 Hz, but through custom resolutions this can be boosted to 76 Hz.

8.0

Inputs

The Acer GN246HL has great low input lag, although it is at the high end for 144 Hz monitors. It has a 24" panel with a 1080p native resolution, which is good for this size but if you are used to 4k or 1440p monitors in larger sizes, you may find the resolution is too low. When connecting this display via HDMI, you will not be able to take full advantage of it. Unfortunately, it does not support DisplayPort, as such the best connector is DVI-DL, which is fairly standard on most recent PCs.

8.5 Input Lag
Native Resolution
:
10.7 ms
Non-Native Res @ Native Refresh
:
N/A
Native Resolution @ 60 Hz
:
21.3 ms
Variable Refresh Rate
:
N/A
10 bit HDR
:
N/A
Black Frame Insertion (BFI)
:
17.8 ms

BFI frequency tested: 120 Hz
Native Resolution @ 60 Hz via HDMI: 21.8 ms

Input lag was measured with DVI instead of HDMI, as the native 144 Hz refresh rate is only possible over DL-DVI.

Input lag is higher than most 144Hz monitors, but still very good. Non-native resolutions are supported, but the native 144 Hz refresh rate is only supported at 1080p. When selecting a non-native resolution, the graphics card will usually upscale the image to the native resolution, so most people won't notice this.

7.1 Resolution and Size
Native Resolution : 1920 x 1080
Aspect Ratio : 16:9
Megapixels : 2.1 MP
Pixel Density : 92 PPI
Screen Diagonal : 24.0 inches
Screen Area : 245 sq inches

The Acer 246HL has a decent 1080p resolution, which is fine for monitors of this size. It doesn't have the pixel density of 4k monitors or 1440p moniors typically found in larger sizes, but most people will find it works well.

Inputs
Total Inputs
DisplayPort : No
Mini DisplayPort : No
HDMI : 1 (HDMI 1.4)
DVI : 1 (DVI-D, dual link)
VGA : 1
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

The HDMI port can only output at 60 Hz, unless a custom resolution is used in which case it can reach 76 Hz. RGB full range is not detected properly over an HDMI cable, so it is better to use RGB limited or YCbCr 4:4:4.

There is a TRS audio out jack that can be used to output audio to an external speaker or headphones. It works best with an amplified device as the output doesn't get very loud.

Features

The Acer GN246HL has fairly basic features. The OSD is simple and easy to navigate, but there are limited options. It doesn't have built-in speakers and the controls are not very intuitive.

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

The Acer GN246HL does not have built-in speakers, but there is an audio out jack that can be used to send sound to headphones or a speaker system. This is not very useful as audio can only be transmitted over HDMI, and this monitor does not support 144 Hz over HDMI.

The monitor uses NVIDIA's Lightboost technology, which when combined with NVIDIA's 3D Vision Kit can be used to display 3D images by flickering the backlight in sync with 3D glasses. It is also possible to enable the backlight flicker with normal content, as explained in the Image Flicker section.

On-Screen Display (OSD)

The OSD is quite limited, with only a few settings adjustments available.

Controls

There is an array of 5 controls on the bottom right of the screen, plus the power button. The buttons aren't labelled, but they are mapped to OSD commands that are displayed on screen. The controls aren't very intuitive and can be difficult to get used to. The buttons themselves don't travel very much and it isn't easy to tell when you actually pressed the button.

In The Box

  • Instruction Manual and CD-ROM
  • DL-DVI Cable
  • VGA Cable
  • Power Adapter
  • AC Cable

Differences between Sizes and Variants

We tested the Acer GN246HL, which is a 24" 1080p TN monitor. It is also available in 27" (Acer GN276HL), and for the most part, we expect our review to be valid for both.

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
GN246HL 24" TN 1080p 144Hz
GN276HL 27" TN 1080p 144Hz

Compared to other Monitors

Left: Acer G257HU. Middle: Acer GN246HL. Right: HP 22CWA
Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The Acer GN246HL is a basic 1080p monitor. It is decent for mixed usage, but there are better monitors in the same price range. See our recommendations for the best 144 Hz monitors, the best PC gaming monitors, and the best budget gaming monitors.

ASUS VG248QE

The ASUS VG248QE is significantly better than the Acer GN246HL. The ASUS VG248QE has better ergonomics allowing you to place it as you like, and also has lower input lag, and better response time so it's much better for gaming. The faster response time creates a smaller image trail that is good for fast action gaming.

Acer XF251Q

The Acer XF251Q is much better than the Acer GN246HL. The GN246HL has a faster 144Hz refresh rate, but it doesn't support any variable refresh rate technologies like FreeSync or G-SYNC. The XF251Q has a 75 Hz refresh rate, but it supports FreeSync. The Acer GN246HL uses PWM to dim the backlight, and this causes flicker that may bother some people, whereas the XF251Q is flicker-free. Finally, the XF251Q has much less input lag, especially when gaming at 60Hz.

Dell U2515H

The Dell U2515H is more suitable for a room with wide seating. On the other hand, the Acer GN246HL is a very fast monitor with very good motion features. The Dell U2515H has better viewing angles and significantly better ergonomics so you can position it to your liking. Also, it has a higher resolution and marginally larger size, giving you more detail to work on. The Dell U2515H also has slightly lower input lag which is great for gaming.

Dell P2417H

If you plan to do collaborative work, then the Dell P2417H is a better choice due to better viewing angles. On the other hand, the Acer GN246HL is a better choice if you sit right in front of the screen in a brighter room. The Dell P2417H has significantly better ergonomics that allow you to place it as you like. The Dell P2417H has better input lag and thus is more responsive which is great for gaming. The Acer GN246HL, on the other hand, is slightly brighter and has a faster response time with less blur and a better refresh rate of 144Hz.

Acer G257HU/G7 Series

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.

HP Pavilion 22CWA

If you will be watching the monitor from the side, the IPS panel of the HP 22CWA is a better choice as it has better viewing angles than the Acer GN246HL that has a TN panel. The HP has also better gray uniformity which improves picture quality, whereas the Acer has somewhat better motion blur and marginally better refresh rate, which is important to gamers.

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Conclusion
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6.5 Mixed Usage
The Acer GN246HL is a decent monitor for mixed usage. It is best suited for casual gaming. The lack of ergonomic features and poor viewing angle make it an okay choice for office use. It has a poor contrast ratio and poor black uniformity, and is best suited for a medium lit room without much glare.
6.5 Office
Decent monitor for office usage. The native resolution and size are basic, many people will want a larger or higher resolution monitor. It has very limited ergonomic options, and it doesn't swivel or rotate so the screen can't easily be shared with neighbours.
7.1 Gaming
Decent monitor for casual gaming. The high refresh rate helps motion look smooth. It has great low input lag, but it is higher than similar 144 Hz monitors. It doesn't support any adaptive sync technologies like AMD's Freesync. Late night gaming isn't as enjoyable due to the limited contrast and poor black uniformity.
6.4 Multimedia
Decent choice for multimedia use. Watching movies or TV shows on Netflix or YouTube will look good, but the 1080p resolution will be limiting to some users. Dark room performance isn't great with the limited contrast and poor black uniformity. The viewing angle is disappointing, so it isn't great for sharing clips with other people.
6.3 Media Creation
Decent monitor for media creation. The 1080p resolution and the lack of ergonomic options might be limiting to some. The poor coverage of the professional Adobe RGB color space makes it less than idea for professional users. Picture quality is decent, but the dark room performance isn't great and blacks are never truly black.
4.9 HDR Gaming
HDR is not supported. For HDR gaming, there aren't a lot of choices. The Samsung CHG70 is a good choice.

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