BENQ XL2420Z revealed — New 24″ 144Hz monitor from BENQ

Posted Nov 29, 2013 by

A BENQ Asia/Pacific flyer on Facebook includes an upcoming BENQ XL2420Z monitor, the 24″ version of the upcoming new BENQ XL2720Z.

The flyer shows Singaporean dollars, which are larger numbers than $USD and $CAD.

The BENQ XL2720Z has also arrived early at Blur Busters for testing, and a review will be posted during December.

EDIT: See new Blur Busters Strobe Utility for Z-series.

About Mark Rejhon

Also known as Chief Blur Buster. Founder of Blur Busters. Inventor of TestUFO. Read more about him on the About Mark page.

11 Comments For “BENQ XL2420Z revealed — New 24″ 144Hz monitor from BENQ”

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badugib
Member
badugib

It’s like…the monitor Technology is ALMOST there for gaming perfection. Im waiting until it completely surpasses CRT in terms of refresh rate performance and input lag..my crt monitor can output 800×600 180hz lol. counterstrike is still awesome!

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10 years 4 months ago
badugib
Member
badugib

so is G-sync going to be compatible with this monitor?

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10 years 4 months ago
Mark Rejhon
Author
Mark Rejhon

Probably not, but you never know — ASUS did announce a G-SYNC upgrade board for the VG248QE.

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10 years 4 months ago
badugib
Member
badugib

what the difference between this and the 144hz 2420T?

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10 years 4 months ago
Mark Rejhon
Author
Mark Rejhon

Just like the XL2720Z, the 2420Z likely also supports enabling BENQ Blur Reduction via the menus. It’s like LightBoost 2D, except it’s an official method of motion blur reduction, fully sanctioned by the monitor manufacturer.

On the XL2720Z, strobing works from 75Hz through 144Hz, unlike LightBoost which only functions at 100Hz to 120Hz. Since it can be enabled via the monitor’s onscreen menus, no software is needed to enable strobing.

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10 years 4 months ago
supermote
Member
supermote

And hopefully no more input lag with lightboost because using lightboost disables immediate mode and ama.

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10 years 4 months ago
Mark Rejhon
Author
Mark Rejhon

Actually, input lag behavior of a strobe backlight is quite different and rather interesting. An article about this will be published at some point in the future.

LightBoost strobing is actually surprisingly efficient and almost as low input latency as technologically possible for a full-strobe backlight (adds an average of only ~4ms of input lag). The XL2720Z Blur Reduction strobing is similar. The main “law of physics” limitation is that the whole screen has to refresh top-to-bottom in total darkness, before the strobe, which is why input lag exists with strobe backlights.

The input lag is small enough that the competitive advantages of motion blur reduction helps a lot of people (e.g. better Battlefield 3 scores with LightBoost), outweighing the very slight input lag penalty. This also depends on whether you keep your eyes stationary (strobing doesn’t help) or you track your eyes on moving objects (strobing helps a lot), and your game play styles, however, the benefits are apparent for many for certain ‘fast’ games.

That said, with future monitors, higher refresh rates, and faster cables, it’s possible to reduce the input lag further via using faster frame delivery and/or faster refreshes (e.g. delivering 1080p refreshes in only 2.5ms over a DisplayPort cable at maximum dotclock). G-SYNC is actually a small step towards that goal of faster frame delivery. Theoretically, at 240Hz, the input lag penalty for strobing would only add about a couple of milliseconds average.

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10 years 4 months ago
Jameson
Member
Jameson

I actually bought a 2411t purely for cs:go a few months back and was quite interested in lightboost. At the time i glossed over this graph and assumed larency decreased with lightboost:comment image, but I guess i read it incorrectly.

I stopped using lightboost for a few reasons (the brightness and detail loss was too much for me), but one key reason is i could definitely noticed the increased latency, i thought i was going mad until your post above (my mistake for not understanding the graph properly).

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10 years 4 months ago
Mark Rejhon
Author
Mark Rejhon

The graph is for amount of motion blur, not for amount of latency.
(1ms of persistence = 1 pixel of motion blur during 1000 pixels/second – see https://blurbusters.com/zero-motion-blur/10vs50vs100/ for more information).

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10 years 4 months ago
Jameson
Member
Jameson

ah, so lightboost does add latency over normal modes?

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10 years 4 months ago
Mark Rejhon
Author
Mark Rejhon

LightBoost adds an average of half a frame of latency (about 4ms).

However, keep in mind that the motion clarity can compensate for many gaming use cases — where you have to react fast during eye-tracking situations (e.g. identifying enemies in high-speed helicoptor flybys, circle strafing, turning around corners, and anything that requires you to see good motion clarity). There are people who get much better Battlefield3 scores with LightBoost — http://www.blurbusters.com/lightboost/testimonials. Essentially, it reduces reaction time enough to compensate for the added minor LightBoost lag.

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10 years 4 months ago
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