Results: Pixel Response, Input Lag, And Blur Reduction
To perform these tests, we use a high-speed camera that shoots at 1000 frames per second. Analyzing the video frame-by-frame allows us to observe the exact time it takes to go from a zero-percent signal to a 100% white field.
We had to do things a little differently for this review because our pattern generator only goes up to 60 Hz. So, we filmed a mouse movement that triggers the field pattern’s appearance. Since this is less precise than using the generator, we averaged five measurements. Here’s the screen draw result.
We were impressed to see the BenQ edge out Asus in this test. This is why a high-refresh monitor is so good for 3D gaming. There are blur reduction techniques discussed below that you can use to improve motion resolution, but it all starts with a fast panel like the XL2720Z.
Here are the lag results:
A new king of low input lag is crowned! Even a novice gamer like me can appreciate and benefit from this kind of performance. My aim is far more precise. My hit rate is higher. And motion is super-smooth with almost no loss of resolution.
BenQ puts a lot of effort into enhancing the gaming experience with its XL2720Z. In addition to the 144 Hz refresh rate, it employs a few extra features to minimize motion artifacts.
The principal one is a strobe backlight. You might associate this terminology with Nvidia's LightBoost, originally developed to improve image brightness with 3D Vision and minimize crosstalk. BenQ calls the feature Blur Reduction, though the fact that some folks like it more or less than LightBoost suggests the two implementations differ. In essence, though, the monitor's backlight turns on and off at a rate that matches its refresh rate. The net effect to the eye is smoother motion.
Of course there is a tradeoff: lower light output. When you activate Blur Reduction on the XL2720Z, brightness is reduced by almost 58 percent. Fortunately, there is a way to adjust this through a third party utility we obtained free from Blur Busters.
If your XL2720Z (or any Z-series BenQ monitor) has the latest firmware (v2.0), you can use this utility to control the persistence and strobe phase, affecting motion, brightness, and crosstalk. The utility is vastly superior to the on/off choice BenQ gives you.
The Persistence slider moves between greater light output and greater blur reduction. You can use the tests at Blur Busters to set this to your liking.
Crosstalk on an LCD manifests as ghosting or faint outlines behind moving objects. Adjusting this slider changes the timing of the backlight’s strobing action, putting it earlier or later in each refresh cycle. Again, check out Blur Buster’s tests to find your preference.
There are a number of the tests at blurbusters.com that demonstrate the effects of blur reduction. In most of them, the XL2720Z’s motion rendering is very smooth, particularly at high refresh rates, even with Blur Reduction turned off. When you increase the pixel-per-frame rate though, switching it on helps improve motion resolution. The most telling examples are the scrolling text tests. At 144 Hz, you can easily read rapidly-moving text. And with Blur Reduction turned on, there is no perceived loss of resolution.
It's still an interim monitor, though. What I really want is a large affordable WQHD or UHD IPS gaming monitor.
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
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
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
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?
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.
"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.
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.