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    Table of Contents
  1. Intro
  2. Design
    1. Stand
    2. Ergonomics
    3. Back
    4. Borders
    5. Thickness
    6. Build Quality
  3. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Peak Brightness
    4. HDR Peak Brightness
    5. Horizontal Viewing Angle
    6. Vertical Viewing Angle
    7. Gray Uniformity
    8. Black Uniformity
    9. Pre Calibration
    10. Post Calibration
    11. SDR Color Gamut
    12. SDR Color Volume
    13. HDR Color Gamut
    14. HDR Color Volume
    15. Image Retention
    16. Reflections
    17. Gradient
    18. Color Bleed
  4. Motion
    1. Motion Blur
    2. Image Flicker
    3. Refresh Rate
  5. Inputs
    1. Input Lag
    2. Resolution and Size
    3. Main Inputs
    4. Other Inputs
    5. Total Inputs
  6. Features
    1. Additional Features
    2. On-Screen Display (OSD)
    3. Controls
    4. In The Box
  7. Conclusion
  8. Q&A
Reviewed on Nov 10, 2017 , Ian Cumming, Mehdi Azzabi, Martin Leduc, Eric Bousquet

ASUS VG248QE Gaming Monitor
MONITOR REVIEW

Usage Ratings - Version 1.0
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Test Benches:

  • 1.0: Fall 2017
7.1Mixed Usage
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Score components:
  • 30% Office
  • 30% Multimedia
  • 25% Gaming
  • 10% Media Creation
  • 5% HDR Gaming
Size : 24 "
Resolution : 1920x1080
Refresh Rate : 144 Hz
LCD Type
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What it is: Type of LCD technology used by the monitor.
When it matters: Different technologies have different viewing angle properties.
:
TN

The Asus VG248QE is a good 144 Hz LCD monitor with a 1080p resolution and a slew of gaming-oriented features. It has very low input lag, and its high refresh rate and low motion blur make for very fluid and responsive gaming. However, its very narrow viewing angle and ordinary picture quality make it less suitable in office environments or for those that watch a lot of movies in a dark room.

Test Results
Design 7.5
Picture Quality 6.2
Motion 8.5
Inputs 8.5
Pros
  • Excellent motion
  • 144 Hz refresh rate is great for gaming
Cons
  • Very restrictive viewing angle
  • Mediocre picture quality

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7.5

Design

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Score components: Subjectively assigned
ASUS VG248QE Design Picture
Curved : No
Curve radius : N/A
Weight (without stand) : 7.8lbs (3.5 kg)
Weight (with stand) : 12.2lbs (5.5 kg)

The design of the ASUS VG248QE is good. It has a central stand with a small footprint, which unlike most monitors, rotates as the monitor is turned. The height adjustment and rotation is also good for quickly finding a comfortable viewing arrangement. The borders are a bit thicker than most monitors, but still look fine. All of the inputs are directed out of the bottom of the monitor and easy to access.

Stand
ASUS VG248QE Stand picture
Width : 9.1" (23.1 cm)
Depth : 9.1" (23.1 cm)

The stand of the VG248QE has a small circular footprint and actually rotates with the monitor as it turns. It supports the monitor well and has a clip for cable management at the back of the stand.

7.6 Ergonomics
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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:
  • 45% Height Adjustment
  • 18% Switch portrait/landscape
  • 18% Swivel Range
  • 18% Tilt Range
ASUS VG248QE Ergonomics picture
Height Adjustment : 4.3" (11.0 cm)
Switch portrait/landscape : Yes
Swivel Range : -45° to 45°
Tilt Range : -15° to 5°

The ergonomics of this Asus monitor are good, and it is easy to find a comfortable viewing position. The stand allows the screen to pivot, tilt rotate with 4.3" of height adjustment.

Back
ASUS VG248QE Back picture
Wall Mount : Vesa 100x100

The rear of the monitor looks quite good, with a reflective plastic coating. Unfortunately, it readily picks up any fingerprints.

Borders
ASUS VG248QE Borders picture
Borders : 0.7" (1.9 cm)

The borders are quite thick and do pick up fingerprints easily due to their glossy plastic finish.

Thickness
ASUS VG248QE Thickness picture
Thickness (with stand) : 6.5" (16.4 cm)
Thickness (without stand) : 2.4" (6.1 cm)

The monitor has an average thickness when viewed from the side. The stand has quite a small footprint and can be placed close to a wall, which is good. To attach a VESA mount, remove the sticky plastic covers and unscrew the stand.

7.0 Build Quality
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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
ASUS VG248QE Build Quality picture

The build quality of this Asus monitor is decent. Everything feels quite well put together. However, the exterior is all glossy plastic and nothing really feels high-end.

The ASUS VG248QE monitor has a decent picture quality. The low contrast ratio and disappointing black uniformity, mostly due to the TN panel used in this monitor, makes for a poor darkroom experience as blacks look gray. When used in a brighter environment, like an office space or a living room, the VG248 fares much better due to the good SDR peak brightness, coupled with the decent screen finish means that picture quality is much better in those conditions. Both horizontal and vertical viewing angles are poor, and the image quality degrades especially quickly when viewed from the top. Finally, color accuracy is excellent on the VG248 but is limited to the sRGB standard and it does not support more advanced features like HDR.

6.0 Contrast
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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:
ASUS VG248QE Checkerboard Picture
Native Contrast
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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
:
1004 : 1
Contrast with local dimming
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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

The ASUS VG248 has a below average contrast ratio and when set in a dark room, blacks tend to look grayish, giving a washed out look to multimedia content with dark content. When the monitor is used in a well-lit room, this washed out look is a bit less visible though, as the ambient light help raise the perceivable black level. This is a similar performance as other monitor using the same kind of panel in their construction.

0 Local Dimming
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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
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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
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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.
:
Direct

This ASUS monitor does not have a local dimming feature. The video is for reference only.

8.0 SDR Peak Brightness
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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
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What it is: The maximum luminosity the TV 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.
:
362 cd/m²
SDR Peak 2% Window
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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
:
372 cd/m2
SDR Peak 10% Window
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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
:
374 cd/m2
SDR Peak 25% Window
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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.
:
369 cd/m2
SDR Peak 50% Window
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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.
:
365 cd/m2
SDR Peak 100% Window
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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.
:
362 cd/m2
SDR Sustained 2% Window
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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.
:
367 cd/m2
SDR Sustained 10% Window
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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.
:
372 cd/m2
SDR Sustained 25% Window
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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.
:
367 cd/m²
SDR Sustained 50% Window
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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.
:
363 cd/m2
SDR Sustained 100% Window
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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.
:
360 cd/m2
SDR ABL
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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
:
0.002

Very good overall brightness. The VG248QE gets quite bright across its entire screen, and it can maintain its brightness over a long period of time without any dimming.

0 HDR Peak Brightness
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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 : 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.

5.2 Horizontal Viewing Angle
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What it is: Color accuracy when viewed from the side.
ASUS VG248QE Horizontal Color Shift Picture
Color Shift from Left
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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°
:
28 °
Color Shift from Right
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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°
:
25 °
ASUS VG248QE Horizontal Brightness Picture
Brightness from Left
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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
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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°
:
43 °
ASUS VG248QE Horizontal Black Level Picture
Black Level from Left
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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°
:
28 °
Black Level from Right
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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°
:
25 °
Curve Radius : N/A

Poor horizontal viewing angle. While the VG248QE maintains its brightness decently at an angle, its rapidly shifting colors render it less than adequate for sharing with people to the sides. Thanks to its smaller size, however, it is not extreme enough to be the cause of uniformity issues from a standard viewing position.

4.5 Vertical Viewing Angle
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What it is: Color accuracy when viewed from the top or bottom.
ASUS VG248QE Vertical Color Shift Picture
Color Shift from Below
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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°
:
10 °
Color Shift from Above
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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°
:
34 °
ASUS VG248QE Vertical Brightness Picture
Brightness from Below
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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°
:
8 °
Brightness from Above
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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°
:
40 °
ASUS VG248QE Vertical Black Level Picture
Black Level from Below
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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°
:
29 °
Black Level from Above
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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°
:
7 °

The Asus VG248QE has a bad vertical viewing angle. When looking up to the screen, colors shift to a negative tone and darken significantly. It is a little better from above, where colors are better maintained, but it does lose contrast significantly. When viewed directly in front, the poor vertical viewing angle can sometimes cause the bottom edge of the screen to have a very slight tinge.

7.7 Gray Uniformity
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What it is: Evenness of colors onscreen (not just gray).
When it matters: Solid colors. Sports, panning shots.
Score components:
ASUS VG248QE 50% Uniformity Picture
50% Std. Dev.
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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%
:
6.667 %
50% DSE
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What it is: 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%
:
0.117 %
ASUS VG248QE 5% Uniformity Picture
5% Std. Dev.
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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%
:
1.328 %
5% DSE
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What it is: High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Dark scenes.
Good value: < 0.116%
:
0.07 %

The gray uniformity of the VG248 is very good. On the 50% gray test picture, not much comes up on the screen. It looks very even without any real noticeable uniformity issues. On the picture, the top portion is darker, but this is only due to the viewing angle effect of the camera sensor and is not really a uniformity issue.

Looking at the 5% gray uniformity test picture, no particular issues are visible, which is good and match what we see on the 50% gray test picture.

5.5 Black Uniformity
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What it is: Evenness of blacks.
When it matters: Dark scenes viewed in a dark room.
Score components:
ASUS VG248QE Native Black Uniformity Picture
Native Std. Dev.
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What it is: Average of the squared difference of the blacks.
When it matters: Dark scenes viewed in a dark room.
:
2.361 %
Std. Dev. w/ L.D.
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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.
:
N/A

The black uniformity is disappointing on the VG248. At 5.5 it is a bit inferior to the AGON AG271QX, which has a similar type of panel used in its construction (TN panel). Some backlight bleed is visible near the edges, and also each side near the center of the screen looks a bit darker than the center, but overall, it is still not bad when compared to other monitors we have tested, IPS one especially.

8.8 Pre Calibration
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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:
ASUS VG248QE Pre Calibration Picture ASUS VG248QE Pre Gamma Curve Picture ASUS VG248QE Pre Color Picture
Picture Mode
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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
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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.
:
323.1 cd/m2
Luminance Settings
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What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
90
Contrast Setting
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What it is: The monitor contrast setting, usually ranging from 0 to 100.
:
80
RGB controls
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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.
:
Normal Color Temperature
Color Temperature
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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
:
6663 K
White Balance dE
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What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all video.
Good value: < 3
Noticeable difference: 1
:
1.49
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
1.71
Gamma
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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
:
2.15

The ASUS VG248QE monitor has a great accuracy out of the box. From all the picture mode available, the mode with the best accuracy was the 'Standard' picture mode, with the 'Normal' color temperature. If you find the 'Normal' color temperature too warm or too cold, you can change the color temperature to either 'Warm' or 'Cool'. You will still have a reasonable accuracy if you stay on the 'Standard' picture mode, but note that all other picture modes, have a much worse accuracy.

9.4 Post Calibration
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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:
ASUS VG248QE Post Calibration Picture ASUS VG248QE Post Gamma Curve Picture ASUS VG248QE Post Color Picture
Picture Mode
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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.
:
Standard
Luminance
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What it is: The luminance at which the calibration was executed. We aim for a luminance level of 100 cd/m².
:
99.8 cd/m2
Luminance Settings
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What it is: The luminance settings, often named 'Brightness' on monitors, usually range from 0 to 100.
:
11
Contrast Setting
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What it is: The monitor contrast setting, usually ranging from 0 to 100.
:
78
RGB controls
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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.
:
94-89-100
Color Temperature
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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
:
6540 K
White Balance dE
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What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all videos.
Good value: < 3
Noticeable difference: 1
:
0.67
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
0.95
Gamma
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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
:
2.2

After calibration, which was done on the 'Standard' picture mode and the 'User' color temperature ('User' color temperature gives you the full control over the RGB values), the accuracy of this ASUS monitor is excellent.

Both the white balance dE and the color dE are under 1, which is excellent as almost nobody could notice the inaccuracy at this level. The color temperature is also very close to our 6500k target, which is great. Finally, the gamma is on our 2.2 target, even though the gamma curve slightly diverges from our target curve, but it's still pretty good and does not really cause any issues.

You can download our ICC profile calibration here.

8.5 SDR Color Gamut
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What it is: The palette of colors the monitor can display
When it matters: General content consumption or production
Score components:
ASUS VG248QE Color Gamut s.RGB Picture
s.RGB xy
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What it is: Coverage of the s.RGB 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%
:
98.9 %
ASUS VG248QE Color Gamut ARGB Picture
Adobe RGB xy
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What it is: Coverage of the Adobe RGB colorspace on CIE 1931 xy.
When it matters: Professional photography.
Good value: > 90%
Noticeable difference: 5%
:
70.7 %

This Asus monitor does an excellent job of reproducing the s.RGB color gamut that is most commonly used. Its coverage will be sufficient for all but the most critical color work. However, those interested in the more professionally oriented Adobe RGB color space will be disappointed by its performance.

7.9 SDR Color Volume
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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:
ASUS VG248QE s.RGB Color Volume ITP picture
s.RGB in ICtCp
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What it is: How much of the s.RGB colorspace a monitor can display at different luminosity levels
When it matters: Most content, including web, SDR video games, and SDR media creation
:
88.4 %
ASUS VG248QE Adobe RGB Color Volume ITP Picture
Adobe RGB in ICtCp
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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
:
70.0 %

Good SDR color volume. The Asus VG248QE covers the majority of the standard RGB color volume, but it has difficulty reproducing darker tone due to its low contrast ratio. Its Adobe RGB coverage, however, is too low to serve as a benefit.

0 HDR Color Gamut
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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
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What it is: Whether the monitor can support wider color gamuts
When it matters: HDR content and media creation
:
No
DCI P3 xy
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What it is: Coverage of the DCI P3 colorspace on CIE 1931 xy
When it matters: When consuming or producing HDR content.
:
N/A
Rec. 2020 xy
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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%
:
N/A

HDR is not supported.

0 HDR Color Volume
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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
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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%
:
N/A
Rec. 2020 in ICtCp
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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 %
:
N/A

HDR is not supported.

10 Image Retention
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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.
ASUS VG248QE Image Retention Picture
IR after 0 min recovery
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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 %
IR after 2 min recovery
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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 %
IR after 4 min recovery
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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 %
IR after 6 min recovery
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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 %
IR after 8 min recovery
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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 %
IR after 10 min recovery
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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 %

Perfect result for the ASUS VG248 on our image retention test as no sign of image retention is visible.

7.5 Reflections
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What it is: How much light is reflected by the TV.
When it matters: Bright rooms.
Score components: Subjectively assigned
ASUS VG248QE Average room ASUS VG248QE Average room off picture ASUS VG248QE Bright room off picture

The reflection handling of this Asus monitor is good. The light matte finish diffuses reflections across the screen, increasing the size of direct reflections but reducing their intensity. It should be fine for most rooms but may be an issue in a very bright room.

8.0 Gradient
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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
ASUS VG248QE Gradient Picture
Color Depth
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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.
:
8 Bit

The ASUS VG248 is very good when displaying our gradient test image. Besides the 8-bit banding resulting of the limitation of this monitor, some little color issues can be noticed in the darker grayscale and the green and blue, but this is not enough to cause significant banding while looking at regular content and overall is a very good result.

10.0 Color Bleed
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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:
ASUS VG248QE Color bleed horizontal
Pixel row error
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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%
:
0.000 %
ASUS VG248QE Color bleed vertical
Pixel column error
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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%
:
0.001 %

The VG248QE has no issues with color bleed. A minor amount appears when uniform vertical bands are shown on screen, but it should be completely imperceptible in actual use.

8.5

Motion

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Score components:

Motion looks very good on the Asus VG248QE. It has an incredibly fast pixel response time, a high native refresh rate and an optional black frame insertion feature using Nvidia Lightboost. However, it's not quite flicker-free and it lacks a variable refresh rate feature like FreeSync.

10 Motion Blur
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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:
ASUS VG248QE Motion Blur Picture ASUS VG248QE Response Time Chart
80% Response Time
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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
:
2.1 ms
100% Response Time
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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
:
5.5 ms
Best Overdrive Setting
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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.
:
60

Trace Free Off
Trace Free 40
Trace Free 60
Trace Free 80
Trace Free 100

Outstanding response time, good enough for even the most intense motion sequences. Almost all the blur in the photo is due to persistence; hardly any ghosting trail or smearing is visible at all, though both edges of the logo are darkened. The 'Trace Free 60' option is the most balanced; the '80' option is also good but it adds more overshoot and its 80% transition is only 0.2 ms faster.

8.3 Image Flicker
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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
ASUS VG248QE Backlight Picture
Flicker-free : No
PWM Dimming Frequency
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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.
:
833 Hz
Black Frame Insertion (BFI) : Yes
ASUS VG248QE BFI Picture ASUS VG248QE BFI Frequency Picture
BFI Maximum Frequency : 120 Hz
BFI Minimum Frequency : 100 Hz

The monitor only uses PWM to dim the backlight, so it is not flicker-free. However, the frequency of the flicker is extremely high and will be unnoticeable by almost anyone, even those sensitive to flicker.

While the monitor does have a black frame insertion feature that adds flicker to clear up motion, it's only activated when the monitor is in 3D mode (using Nvidia's 3D Lightboost technology). A third party software hack is needed to activate BFI for normal usage, however, the implementation is now quite mature and stable. BlurBusters.com has an excellent article on activating BFI on a Lightboost monitor.

8.0 Refresh Rate
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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
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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
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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
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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.
:
No
VRR Maximum
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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
:
N/A
VRR Minimum
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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
:
N/A
VRR Maximum With OC
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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 : N/A

The VG248 has a native refresh rate of 144 Hz, which is great for all usages but especially gaming. Unfortunately it lacks a variable refresh rate implementation like FreeSync, so gamers will have to deal with VSync or tearing.

When using the HDMI ports the maximum official resolution is 1080p @ 60 Hz, though we were able to reach 1080p @ 86 Hz by using a custom resolution with standard timings.

8.5

Inputs

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Score components:

The Asus VG248 only has a very common 1080p resolution and 24" size, which are good enough for most usages but will leave some people wanting more. Fortunately, the monitor has extremely low input lag, which should please even the most competitive gamers.

9.4 Input Lag
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What it is: Delay between input and onscreen reaction.
When it matters: General usage of the mouse and gaming.
Native Resolution
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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
:
5.1 ms
Non-Native Resolution
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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.
When it matters: General usage as well as gaming.
Good value: < 15 ms
Noticeable difference: 5 ms
:
N/A
Native Resolution @ 60 Hz
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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
:
9.9 ms
Variable Refresh Rate
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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
:
N/A
HDR
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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
:
N/A
Black Frame Insertion (BFI)
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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
:
9.6 ms

BFI frequency tested: 120 Hz

Incredibly low input lag, good enough for even the most competitive gamers and eSports players. The input lag with BFI (Lightboost) enabled is a little higher but is still very low. While the monitor does support non-native resolutions, none of these resolutions are available at the native 144 Hz refresh rate.

7.1 Resolution and Size
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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 : FHD, 1920 x 1080
Aspect Ratio : 16:9
Megapixels : 2.1 MP
Pixel Density : 92 PPI
Screen Diagonal : 24.0 inches
Screen Area : 246 sq inches

The monitor only has a very common 1080p resolution and 24" size. It should be good enough for most usages, but some people may find themselves wishing for more screen area and a higher resolution.

Main Inputs
Other Inputs

All of the inputs are on the back of the monitor.

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 : No
Digital Optical Audio Out : No
Analog Audio Out RCA : No

There is also an Analog Audio In 3.5mm port, which can be used to feed the headphone jack when not using audio input from DisplayPort or HDMI.

When using the HDMI ports, the maximum official resolution is 1080p @ 60 Hz; by using a custom resolution we were able to display 1080p @ 86 Hz using standard timings, indicating that the port has more bandwidth than HDMI 1.2.

Features

The VG248 has a well-organized on-screen display, integrated speakers, Nvidia Lightboost technology, and two optional gaming features: a crosshair overlay on screen for games that don't have a crosshair, and a transluscent countdown timer overlay in one of the screen corners.

Additional Features
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What it is: Additional features found on the monitor
Score components:
Speakers
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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 : No

The Asus VG248QE is an older monitor from the days of Nvidia's 3D Vision push, which since stagnated. As such, the VG248QE has Nvidia's Lightboost technology, which makes the backlight flicker in time with 3D shutter glasses when the monitor is in 3D mode, effectively 'boosting' the brightness of the screen when using shutter glasses. However, in order to synchronize the shutter glasses you need Nvidia's 3D Vision kit, which is expensive. Lightboost can also be used as BFI during normal usage, as explained in the Image Flicker section.

The monitor also has two special gaming features: 'Aimpoint', which is a crosshair overlay on the screen for games that don't have a crosshair; and a transluscent countdown timer which is placed in one of the corners of the screen.

On-Screen Display (OSD)
Controls
ASUS VG248QE Controls picture

On the bottom right corner of the monitor are a series of downward facing buttons for controlling the OSD, and the light up power button. The way the buttons are mapped to OSD commands can be a little annoying; for example, the Menu button closes the Brightness menu but acts as the select button in the main menu, which makes learning the buttons by muscle memory more difficult.

In The Box
ASUS VG248QE In The Box picture

  • Manual and drivers
  • Power cable
  • DVI Cable
  • 3.5mm aux cable

Conclusion
SEE PRICE
Amazon.com

7.1Mixed Usage
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Score components:
  • 30% Office
  • 30% Multimedia
  • 25% Gaming
  • 10% Media Creation
  • 5% HDR Gaming
The Asus VG248QE is a decent monitor overall. It does particularly well with gaming usages, and its good brightness means it won't look dim even in well-lit rooms. Unfortunately, its mediocre picture quality and very narrow viewing angles make it a bit less versatile.
Average monitor for a productivity-oriented usage. The Asus VG248QE's stand provides many adjustments, making it easy to set up on almost any desk. However, its limited size and resolution reduce the virtual working space available, and its narrow viewing angle makes rotating the monitor to share with co-workers a requirement.
The VG248 is a great LED monitor for gaming. Its high refresh rate, backlight flicker feature and low input lag make for a very responsive and immersive experience. It lacks modern features like G-Sync, but most gamers will still be pleased by the excellent motion this monitor produces.
Ordinary monitor for a multimedia usage. The Asus VG248QE's low contrast means that movies and videos won't look particularly good, and the lack of a 4k resolution and HDR related features further reduces its flexibility.
Average monitor for creating a variety of media. The Asus VG248QE comes decently color accurate out of the box, but it cannot reproduce wider color gamuts often used in modern media. Its narrow viewing angle also causes some issues as even slight head movements can cause a shift in the picture that is undesirable for more critical work.
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