BenQ XL2720Z Monitor Review: A 27-Inch, 144 Hz Gaming Display

Measurement And Calibration Methodology: How We Test

To measure and calibrate monitors, we use an i1Pro spectrophotometer, a Spectracal C6 colorimeter, and version 5.2.0.1374 of SpectraCal’s CalMAN software.

The i1Pro is very accurate and consistent measuring color on all types of displays, regardless of the backlight technology used. When we just need a luminance value, the C6 works better, especially in low light.

For patterns, we employ an AccuPel DVG-5000 video signal generator. This approach removes video cards and drivers from the signal chain, allowing the display to receive true reference patterns. Connections are made via HDMI.

The AccuPel DVG-5000 is capable of generating all types of video signals at any resolution and refresh rate up to 1920x1080 at 60 Hz. It can also display motion patterns to evaluate a monitor's video processing capabilities, with 3D patterns available in every format. This allows us to measure color and grayscale performance, crosstalk, and ghosting in 3D content via the 3D glasses.

The i1Pro or C6 is placed at the center of the screen (unless we’re measuring uniformity) and sealed against it to block out any ambient light. The AccuPel pattern generator (bottom-left) is controlled via USB by CalMAN, which is running on the Dell XPS laptop on the right.

Our version of CalMAN Ultimate allows me to design all of the screens and workflows to best suit the purpose at hand. To that end, I’ve created a display review workflow from scratch. This way, we can be sure and collect all the necessary data with a concise and efficient set of measurements.

The charts show us the RGB levels, gamma response, and Delta E error for every brightness point from zero to 100 percent. The table shows us the raw data for each measurement. And the area in the upper-left tells us luminance, average gamma, Delta E, and contrast ratio. The individual charts can be copied to the Windows clipboard to easily create graphics for our reviews.

Every primary and secondary color is measured at 20-, 40-, 60-, 80-, and 100-percent saturation. The color saturation level is simply the distance from the white point on the CIE chart. You can see the targets moving out from white in a straight line. The further a point is from center, the greater the saturation until you hit 100 percent at the edge of the gamut triangle. This shows us the display’s response at a cross-section of color points. Many monitors score well when only the 100-percent saturations are measured. Hitting the targets at the lower saturations is more difficult, and factors into our average Delta E value (which explains why our Delta E values are sometimes higher than those reported by other publications).

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  • Fierce Guppy
    What a coincidence. I got a XL2720Z just this Wednesday. I would've preferred to wait for the arrival of Haswell-E before buying a new monitor, but my Samsung T260 emits something that causes reddening of the skin around my nose, above my left eyebrow, and smack in middle of my forehead. (Sunlight and florescent tubes don't do this to me.) Happy to say the XL2720Z does not cause me any injury, or at least not yet...

    It's still an interim monitor, though. What I really want is a large affordable WQHD or UHD IPS gaming monitor.
    0
  • MonsterCookie
    When do monitor manufacturers understand, that 1080p resolution is a JOKE,
    especially on a large 27" screen?
    In the early 2000s it might have been ok to have such resolution, but nowadays
    it is no longer usable. Even for a 24" screen the minimal resolution is
    1920x1200.
    Until they are not making these 27" screens to have more pixels, they are not
    seeing any cash out of me. I rather buy el-cheapo monitors from Ebay as a mail
    order from Korea.

    Monitor manufacturers, please stop living in the 80s and stop hustling us with
    your prices!
    9
  • Bernie Fresh
    "oh neat, a new monitor. lets check specs. oh coool 1080p and a bunch of buzz words"
    sometimes I feel like nobody is listening... or just trying to sell me a bridge for the low low.
    decent review, but if youve got the gpu for 144Hz. 2160p @60 is just a cootie shot away
    3
  • somebodyspecial
    So from the results I still need an IPS with Gsync or you're stuck with TN. I'm hoping by xmas they have a dozen good choices for gsync monitors with 144hz also in there (why not, what if I go AMD again after maxwell?). Might as well get as many bases covered as possible. IF monitor makers are reading this, 2560x1600! Screw this 1440p crap. Wider is NOT better in monitors of these sizes. I want to scroll up & down less than I am already on 1920x1200 but at least at 1600p I get the same. I won't buy 1440p.
    -1
  • MonsterCookie
    Quote:
    "oh neat, a new monitor. lets check specs. oh coool 1080p and a bunch of buzz words" sometimes I feel like nobody is listening... or just trying to sell me a bridge for the low low.

    To add offense to injury, in 2008 I bought my first LCD (24" Samsung with 1920x1200 pixels) for 330Euros. Now a 24" Samsung would cost me 400 Euros, and it has only 1920x1080 pixels.

    What on earth have happened? Why did prices go up, and resolution went down?
    Why are there no 30" 2560x1600 TN panels out there for gamers for 700 Euros?
    5
  • iknowhowtofixit
    27" TN panel at 1080p @ 144Hz?

    I guess that would allow people to look through a screen door with no motion blur or ghosting? I would need QHD or better at anything 24" and above.
    0
  • siman0
    Quote:
    When do monitor manufacturers understand, that 1080p resolution is a JOKE, especially on a large 27" screen? In the early 2000s it might have been ok to have such resolution, but nowadays it is no longer usable. Even for a 24" screen the minimal resolution is 1920x1200. Until they are not making these 27" screens to have more pixels, they are not seeing any cash out of me. I rather buy el-cheapo monitors from Ebay as a mail order from Korea. Monitor manufacturers, please stop living in the 80s and stop hustling us with your prices!


    This monitor is made for gaming, true gamers don't care a grate deal about resolution. We are in it for the refresh rates and the response time. Ive been gaming on a old CRT monitor till last year with a change to the Asus VG248QE. Even though its still much slower than my old CRT it works. I have 2 computers 1 for gaming and one for everyday and video work. Gaming machine is set up around a single R9 290X, 4770K, and a Asus VG monitor. My other computer is a crossfired 295s, 3930K, and 3 IPS 4k monitors.

    A single card is better for latency, 4770K is more than enough to push data to the 290X and the monitor has a fast refresh rate. Its better at gaming than my extremely high dollar build. Peripherals are set up differently as you can imagine gaming computer has razer and a 7.1 headset. The other is mostly set up for 2.1 but i do have a 7.1 headset for room sound.
    -3
  • MonsterCookie
    @siman0

    "This monitor is made for gaming, true gamers don't care a grate deal about resolution"

    You meant, online multiplayer gamers don't care a grate deal about resolution.

    I prefer to play single-player FPS, where I do want to have all the eye candy,
    and I want to see the vegetation, desert, sky etc. The only advantage of a PC is
    that it can provide better graphics, that is the main point.

    Otherwise I could just go out, buy an 1080p TV, a Crapbox1, Crapbox360, or PlayStopper 4, and game on that thing in 1080p.

    I think monitor technology is not moving forward (in fact moving backwards) exactly because people are happy to buy their 1080p crap for 500 Euros.
    8
  • iknowhowtofixit
    446387 said:
    Quote:
    When do monitor manufacturers understand, that 1080p resolution is a JOKE, especially on a large 27" screen? In the early 2000s it might have been ok to have such resolution, but nowadays it is no longer usable. Even for a 24" screen the minimal resolution is 1920x1200. Until they are not making these 27" screens to have more pixels, they are not seeing any cash out of me. I rather buy el-cheapo monitors from Ebay as a mail order from Korea. Monitor manufacturers, please stop living in the 80s and stop hustling us with your prices!
    This monitor is made for gaming, true gamers don't care a grate deal about resolution. We are in it for the refresh rates and the response time. Ive been gaming on a old CRT monitor till last year with a change to the Asus VG248QE. Even though its still much slower than my old CRT it works. I have 2 computers 1 for gaming and one for everyday and video work. Gaming machine is set up around a single R9 290X, 4770K, and a Asus VG monitor. My other computer is a crossfired 295s, 3930K, and 3 IPS 4k monitors. A single card is better for latency, 4770K is more than enough to push data to the 290X and the monitor has a fast refresh rate. Its better at gaming than my extremely high dollar build. Peripherals are set up differently as you can imagine gaming computer has razer and a 7.1 headset. The other is mostly set up for 2.1 but i do have a 7.1 headset for room sound.


    I get the impression that you were looking for an excuse to brag here... :ange:

    You don't need a top tier $4000 gaming rig to be successful in competitive online play. I've had personal success, never had the best stuff, and never felt like I was "missing the edge" or anything.
    2
  • InvalidError
    This seems a little weird to me: the panel uses constant-current to drive LEDs because some people claim to see flicker at ~20kHz PWM frequency yet the very same display uses backlight strobing to reduce blur and this would be occurring at 144-288Hz which is 100X lower.
    2
  • DookieDraws
    Serious question. Why not just buy a quality HDTV with 120 (or greater) Hz for your gaming monitor? Especially if you'll be gaming at 1920x1080. A neighbor has his PC hooked up to a quality HDTV and it looks great to me. I've played Battlefield on it with no issues at all. It's pretty awesome!
    0
  • Fierce Guppy
    Quote:
    Monster Cookie: When do monitor manufacturers understand, that 1080p resolution is a JOKE, especially on a large 27" screen? In the early 2000s it might have been ok to have such resolution, but nowadays it is no longer usable. Even for a 24" screen the minimal resolution is 1920x1200.



    In the early 2000s CRTs were still the standard. 4:3 was the standard aspect ratio. There were no 1080p LCD monitors let alone large 1080p LCD monitors, and I paid ~$1200(NZD) for a 17" 1280x1024@60Hz (16ms) LCD display in 2003. That's how bad it was back then.
    1
  • InvalidError
    34515 said:
    Serious question. Why not just buy a quality HDTV with 120 (or greater) Hz for your gaming monitor?

    Most 120+Hz TVs take 60Hz input and pulse their backlight 2-5X per frame to reduce blur during display refreshes and perceivable flicker.
    0
  • Fierce Guppy
    Quote:
    DookieDraws: Serious question. Why not just buy a quality HDTV with 120 (or greater) Hz for your gaming monitor? Especially if you'll be gaming at 1920x1080. A neighbor has his PC hooked up to a quality HDTV and it looks great to me. I've played Battlefield on it with no issues at all. It's pretty awesome!


    Try searching for a 120HZ HDTV in my country. See what comes up.
    http://pricespy.co.nz/category.php?k=107
    0
  • balister
    Quote:
    @siman0 "This monitor is made for gaming, true gamers don't care a grate deal about resolution" You meant, online multiplayer gamers don't care a grate deal about resolution. I prefer to play single-player FPS, where I do want to have all the eye candy, and I want to see the vegetation, desert, sky etc. The only advantage of a PC is that it can provide better graphics, that is the main point. Otherwise I could just go out, buy an 1080p TV, a Crapbox1, Crapbox360, or PlayStopper 4, and game on that thing in 1080p. I think monitor technology is not moving forward (in fact moving backwards) exactly because people are happy to buy their 1080p crap for 500 Euros.


    It has absolutely nothing to do with people being happy with buying them. The reason monitors are being made at 1080p or 1440p is because of media. Media companies set the standard of 16:9 which is why you see the majority of monitors now only being built at 16:9 instead of 16:10. So blame the media companies for basically forcing the monitor manufacturers into 16:9 because there are far more TVs/Monitors that are sold at 16:9 than at 16:10 (this is why there are also so few TVs/Monitors at 2.35 - True Letterbox).

    Also, you don't understand why having a monitor refresh above 60Hz is useful, even if you play single player games like FPS. There are two aspects to having a monitor above 60Hz, one is 3D so you can play true 3D (ie, there's true depth of image vs. pseudo-depth where the illusion of 3D is provided through 2D) capable games at a respectable frame rate of 60 or 72 (depending if your monitor is 120Hz or 144Hz) and the second (which has been mentioned) is smoothness in turning (with a 60Hz monitor at 60 FPS, each will only show an arc of 6 degrees if you make a full revolution within one sec where as a 120 Hz monitor at 120 FPS will have an arc of 3 degrees if you make a full revolution within 1 sec).

    There is a very noticeable difference when playing between a 120+ Hz monitor and a 60 Hz monitor. It's not something that can be really imparted well through explaination, it's more something you have to see yourself. After spending a few years gaming on a 120Hz monitor, I really can't go back to 60Hz without getting some level or motion sickness due to the fluidity of movement on a 120Hz monitor where I can notice the "jerkiness" in a 60Hz monitor.
    2
  • coolitic
    A whopping savings of $10?

    I'm assuming this was either a typo or sarcasm was being used.
    0
  • saint19
    I have the little brother, the 2420z and the monitor is amazing for FPS games.
    1
  • BlueCyberPhantomX
    so what beast of a pc will run that? i reckon you'd need at least a 780 ti or r9289x to play games at ultra above 55 fps...
    2
  • tykus
    Balister - Said it best.
    0
  • tankNZ
    Great article!
    0