The ASUS PG348Q is a good mixed-use monitor with some nice gaming features. Gamers will love the low input lag, fast response time and NVIDIA G-SYNC support. The widescreen format and high resolution are great for office use, as you can place two full-sized windows side-by-side, great for multitasking. Unfortunately, it has bad black uniformity with noticeable flashlighting when placed in a dark room, and the color accuracy and white balance are disappointing out of the box.
The ASUS PG348Q has a great design that should please most people. There are a lot of nice finishing touches on the stand that give it a unique look. The stand is well built and solid and can be easily adjusted to an ideal viewing position. Unfortunately, it can't rotate to a portrait orientation, and the legs are quite wide on a desk and prevent you from placing larger objects beneath the monitor.
The stand on the Asus PG348Q is solid and well built. It is very heavy and supports the monitor very well with little wobble. It has a very unique, modern design. The legs take up a lot of space on a desk, and unlike most Dell monitors that have a flat base, you can't really use the space that they take up to place other items.
Decent ergonomics, it can easily be adjusted to a comfortable viewing position, but it can't be rotated to a portrait orientation.
The back looks very good, with nice etched details on the back panel that add to the overall look of the monitor. It can be VESA mounted by removing the stand, which is easily done. There is a unique custom heat sink design that passively cools the monitor without the need for fans. Cable management is integrated into the stand, and it is very effective at keeping a clean desk.
Care should be taken when attaching a VESA mount, as there are exposed connections where they attach.
The curve of the monitor makes it appear very thick, especially when on the stand. The monitor can't be placed flush with the wall due to the stand design, but when VESA mounted it doesn't stick out as much.
The ASUS ROG PG348Q delivers decent picture quality. It has good wide viewing angles, which are helped a bit by the gentle 3800R curve. Colors look great thanks to the excellent color gamut and color volume, but print professionals will be disappointed by the limited Adobe RGB coverage. Unfortunately, the color accuracy and white balance are disappointing out of the box, but these are easily corrected with the proper settings. It doesn't support HDR and lacks a local dimming feature. It has a mediocre contrast ratio that doesn't produce true blacks, and bad black uniformity, so dark room performance isn't great.
The Asus PG348Q has a mediocre contrast ratio and can't produce true blacks, which is typical for IPS monitors. It is slightly worse than the ASUS ROG PG279Q. Unfortunately, it does not have a local dimming feature that could improve the contrast ratio.
The Asus PG348Q does not have a local dimming feature. The video is for reference only.
Good peak brightness. The monitor delivers a constant overall brightness regardless of content, which is good. Overall it isn't as bright as the ASUS ROG PG279Q.
HDR is not supported.
Good horizontal viewing angles. Black levels remain good even at very wide viewing angles, and the brightness remains constant up to a decent angle. Colors remain accurate up to a fairly wide angle. The horizontal viewing angles overall are better than the LG 34UC79G-B.
Good vertical viewing angles. The image remains accurate and bright even when viewed at a wide angle.
Excellent gray uniformity. There are some darker bands visible around the edges of the screen and in the center, but overall it looks good and shouldn't be too noticeable when watching sports or browsing the web.
Bad black uniformity with very noticeable flashlighting. This is worse than average for IPS monitors.
Disappointing out of the box color accuracy. The white balance is high enough that even non-enthusiasts might notice it, and color dE is almost as bad. Gamma is significantly under our target curve, so all scenes appear brighter than the sRGB reference. The color temperature is cold, giving everything a slightly more bluish tint.
Excellent color and grayscale accuracy after calibration. White balance and color accuracy are nearly perfectly corrected, to the point that nobody would be able to spot the imperfections. Gamma and color temperature almost hit our targets, but some brighter scenes are dimmer than they should be.
You can download our ICC profile calibration here. We don't recommend using this profile, as the calibration values vary per individual unit, even for the same model, due to manufacturing tolerances.
s.RGB Picture Mode: Racing Mode (calibrated)
Adobe RGB Picture Mode: Racing Mode
The Asus PG348 has an excellent SDR color gamut. Coverage of the standard s.RGB gamut is nearly perfect, great for daily usage. Professionals in print and media will be disappointed by the limited Adobe RGB coverage. For excellent Adobe RGB coverage, check out the Acer Predator X27.
s.RGB Picture Mode: Racing Mode
Adobe RGB Picture Mode: Racing Mode
Excellent color volume. Most of the gaps in the color volume are due to the limited contrast ratio, as the ASUS ROG SWIFT PG348Q can't produce deep, dark colors. It also can't produce very bright blues, but this is fairly common and shouldn't be noticeable.
HDR is not supported.
HDR is not supported.
Perfect image retention. After displaying the high contrast test image for 10 minutes there was no image retention.
Good gradient handling. There is some visible banding in very dark shades, but this shouldn't be an issue for most uses.
The PG348Q is advertised by ASUS as a 10-bit monitor, but we were unable to get it to accept a 10-bit signal.
Update 01/07/2019: The gradient score has been updated (7.6 -> 8.6), as it was scored incorrectly at the time of the review.
Perfect color display, with no bleed between rows or columns.
Good reflection handling, but not as good as the Dell U3417W. Most people won't have any issues, but there may be problems if you have a bright room with lots of windows.
The ASUS PG348Q has great motion handling. It has a fast response time that produces very little motion blur, and the backlight is flicker-free. Unfortunately, there is no option to introduce flicker like NVIDIA's ULMB technology. It supports a native refresh rate of 60 Hz but is very easily overclocked to 100 Hz and there is little benefit to running it at 60 Hz. When connected via HDMI, the refresh rate is limited to 50 Hz.
The ASUS ROG SWIFT PG348Q has an excellent fast response time, which is great for gaming. The recommended OD setting is 'Normal'. This setting delivers the best balance between response time and overshoot. There is some overshoot, especially in the 0-20% transition. While this may be noticeable in really dark scenes, it shouldn't cause any issues for most people. With OD set to 'Extreme', there is severe overshoot in multiple transitions, and it doesn't improve the response time significantly.
The response time was measured with a 100Hz signal.
The Asus PG348Q is completely flicker-free. It doesn't have an optional black frame insertion feature to reduce motion blur, since it does not support NVIDIA's ULMB technology.
The base refresh rate of 60Hz will be disappointing to some gamers. It can be overclocked to 100Hz within the OSD. There is also a Turbo Key button on the back of the monitor that can instantly switch between 60 and 100 Hz, but it is no longer supported on Windows 10 version 1803 and up. We were unable to get this feature to work on any of our computers.
The Asus PG348Q supports NVIDIA's G-Sync technology, when connected with a DisplayPort cable (see our recommendations for the best G-SYNC monitors). When connected with an HDMI cable, the maximum refresh rate is 50 Hz when running at the monitor's native resolution of 3440x1440 due to HDMI bandwidth limitations.
The Asus PG348 has excellent low input lag. It has an excellent large, high-resolution screen that is great for multitasking, as well as delivering a more immersive gaming experience. Over DisplayPort, the monitor supports a 100 Hz refresh rate, and this mode delivers the lowest possible input lag.
Lowest input lag possible at the center of the screen, when the monitor is displaying an alternative resolution at its native refresh rate. The non-native resolution tested depends on the native resolution of the monitor, following this pattern unless otherwise specified in the Input Lag text:
|Native Resolution||Non-Native Resolution Tested|
Refresh Rate Tested: 100 Hz
Excellent low input lag when the PG348Q is overclocked to 100 Hz. Normally we test monitors at the native refresh rate, but in this case, there is a significant benefit to run the monitor at 100 Hz and no significant downsides. Note that 100 Hz is only possible over DisplayPort; HDMI is limited to 50 Hz and there will be more input lag.
Over DisplayPort the only possible resolutions are (3440x1440, 1024x768, 800x600, 640x480), and only 3440x1440 is capable of 100 Hz. This isn't usually a problem though because most graphics cards will upscale lower resolutions to 3440x1440 without you even knowing.
The large screen and 3440x1440 resolution are great for multitasking. Although it doesn't have a very high pixel density, it looks good and allows you to see more details.
The Asus PG348Q has a few additional gaming features. Like many gaming monitors, there is an option for a customizable crosshair overlay, good for games that don't show crosshairs. There is also a USB hub on the back, so you can plug your keyboard and mouse in, but they aren't very accessible so they are less suited for plugging in a USB key or charging cable, and they don't support BC 1.2. The OSD is well organized and very easy to use, but quite small.
There are quite a few additional gaming features, including:
To disable the OSD features, press the X button on the monitor to access the menu, then press it a second time.
There is also a dedicated Turbo Key on the back of the monitor that can instantly switch between the standard 60 Hz and the overclocked 100 Hz refresh rate. Unfortunately, this function does not work on Windows version 1803 (Windows 10 April 2018 Update) or later. We were unable to get this feature to work on any of our computers.
We tested the 34" ROG SWIFT PG348Q, which is the only model available. There are other sizes and variants in the ASUS ROG SWIFT lineup, some of which are listed below. The other models have different specifications and do not perform the same as the one we reviewed.
|Model||Size||Native Resolution||Refresh rate||Notes|
|PG348Q||34"||3440x1440||60Hz||G-Sync support, curved|
Our PG348Q was manufactured in July 2016.
The ASUS ROG SWIFT PG348Q is a great gaming monitor with a good design, but it comes with a premium price. See our recommendations for the best curved gaming monitors, the best monitors for PS4 and the best monitors for photo editing and graphic design.
The Dell Alienware AW3418DW is marginally better than the ASUS ROG PG348Q. The Alienware has a little faster refresh rate and produces a little less blur in fast-moving content. Also, the Alienware has lower input lag and responds slightly quicker to your actions giving you a small edge in gaming. Other than those minor differences, the two monitors are very similar.
The ASUS ROG PG348Q and the Samsung CHG90 are similar overall monitors, each with their own advantages. The PG348Q has a better stand with better ergonomics, and it has much wider viewing angles. The CHG90 has flicker in the backlight, and it has an optional mode to reduce the flicker frequency to reduce persistence blur. The CHG90 also has a higher refresh rate. The PG348Q supports G-SYNC, whereas the CHG90 supports FreeSync. This may be an important factor to take into consideration depending on what your graphics card supports.
The ASUS ROG PG279Q is better than the ASUS ROG PG348Q. The PG279Q has better motion handling, with an even faster response time that produces almost no noticeable motion blur. The backlight on the PG279Q also has the option to introduce flicker to reduce persistence blur. While both monitors support NVIDIA's G-SYNC technology, the PG279Q has a higher native refresh rate of 144Hz that can easily be overclocked to 165Hz.
The ASUS ROG PG348Q and the Acer Z35P are very similar overall. The Acer Z35P has a higher native refresh rate, but the PG348Q can be easily overclocked to 100Hz. The PG348Q also has better wide viewing angles, great for sharing your screen with other people.
The ASUS ROG PG348Q is better than the Samsung CJ791 if you care about good viewing angles. The ASUS ROG PG348Q has an IPS panel whereas the Samsung has a VA one. The ASUS also has a faster response time with a smaller blur trail and better ergonomics to position it comfortably. The Samsung CJ791, on the other hand, has a lower input lag which makes it very responsive to your actions.
The ASUS ROG PG348Q is marginally better than the LG 34UC79G-B. The ASUS ROG PG348Q is brighter and has a wider color gamut and better color volume. The 34UC79G-B has better motion handling, with an optional black frame insertion feature to clear up blur, and a higher native refresh rate. The PG348Q has a better stand that can swivel as well as tilt, making it easier to show something to a nearby colleague.
The LG 34WK95U is slightly better overall than the ASUS ROG PG348Q. The LG 34WK95U has a higher resolution, supports HDR, and has slightly better gradient banding, whereas the ASUS is more of a gaming monitor that supports G-SYNC, is flicker-free, has less image blur, and supports FreeSync.
The LG 32UD99 is better than the ASUS ROG PG348Q for most uses. The LG is brighter, has better gradient handling, and supports HDR. The 32UD99 also has better dark room performance, with much better black uniformity. The PG348Q and 32UD99 have similar overall gaming performance, but the ASUS can be overclocked to a 100Hz refresh rate when connected with DisplayPort, and it supports NVIDIA G-SYNC instead of FreeSync.
The ASUS ROG PG348Q is a bit better than the Dell U3417W. The PG348Q has much better motion handling, with a faster response time and higher refresh rate, as well as NVIDIA G-SYNC VRR support. The ASUS also has much lower input lag, making it a much better gaming monitor overall. The ASUS also has a better stand that can also swivel, great for sharing work with someone else.
The Dell U3818DW is slightly better than the ASUS ROG PG348Q, but overall it depends on your usage. The ROG PG348Q is better for gaming, thanks to the faster refresh rate and G-SYNC support. The Dell U3818DW is better for office use thanks to the larger, higher resolution screen, as well as the multitasking-oriented features, like PIP/PBP. The Dell U3818DW has slightly better dark room performance, as there is less backlight bleed and flashlighting.