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.
- Excellent motion
- 144 Hz refresh rate is great for gaming
- Very restrictive viewing angle
- Mediocre picture quality
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.
- 45% Height Adjustment
- 18% Switch portrait/landscape
- 18% Swivel Range
- 18% Tilt Range
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.
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.
- 10% Contrast
- 3% Local Dimming
- 9% SDR Peak Brightness
- 3% HDR Peak Brightness
- 10% Horizontal Viewing Angle
- 10% Vertical Viewing Angle
- 9% Gray Uniformity
- 7% Black Uniformity
- 7% Pre Calibration
- 2% Post Calibration
- 5% SDR Color Gamut
- 5% SDR Color Volume
- 2% HDR Color Gamut
- 2% HDR Color Volume
- 2% Image Retention
- 9% Reflections
- 3% Gradient
- 2% Color Bleed
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.
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.
This ASUS monitor does not have a local dimming feature. The video is for reference only.
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.
HDR is not supported.
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.
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.
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.
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.
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.
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.
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.
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.
HDR is not supported.
HDR is not supported.
Perfect result for the ASUS VG248 on our image retention test as no sign of image retention is visible.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 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.