ZOWIE XL2546

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pupo
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ZOWIE XL2546

Post by pupo » 06 Aug 2017, 09:02

Dear all,
someone already have it? ...and so can share its impressions ?

https://youtu.be/wEg75myDmOQ

Possible a firmware mod from 2540 to 2546 ? :lol:

Birdflew
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Re: ZOWIE XL2546

Post by Birdflew » 14 Aug 2017, 19:17

I have it, I can definitely see an improvement coming from a 165hz Panel

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Chief Blur Buster
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Re: ZOWIE XL2546

Post by Chief Blur Buster » 14 Aug 2017, 21:59

Birdflew wrote:I have it, I can definitely see an improvement coming from a 165hz Panel
Thought so!

Was it an IPS monitor?

Great colors, but IPS limits are being hit before 165Hz (hard to tell incremental jumps above 120Hz) but TN has a huge deal of headroom, where TN 165Hz->240Hz is a bigger clarity jump than IPS 120Hz->165Hz.

Have you tested Blur Busters Strobe Utility on the XL2546? I am curious if the utility still works on this model -- even though we designed it to continue to function on those models.
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darzo
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Re: ZOWIE XL2546

Post by darzo » 14 Aug 2017, 22:58

What IPS limits?

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Re: ZOWIE XL2546

Post by Chief Blur Buster » 15 Aug 2017, 00:49

darzo wrote:What IPS limits?
GtG pixel response limitations are a bigger problem at >120Hz.

I love the IPS colors better. Lovely for Photoshop. But, oh man, I wish IPS pixels were as fast as TN pixels. It makes a world of difference in the Hertz stratosphere when GtG starts bleeding between refresh cycles again (like the bad old 33ms LCD days where GtG exceeded refresh cycles).

In the modern world of 1ms tp 5ms GtG of a modern eSports monitor, GtG does almost zich, nada, for 60Hz. For motion blur, 1ms versus 5ms doesn't really make a noticeable difference when it comes to 60Hz. 5ms pixel transition times is still a tiny fraction of a 1/60sec (16.7ms) refresh cycle.

But at 240Hz, we're squeezing elephants through drinking straws. 1ms GtG is a tiny fraction of 240Hz. 3ms GtG is a big fraction of 240Hz. It's even affecting 165Hz too. Anytime GtG reaches half a refresh cycle, it begins to have a noticeable effect on preventing motion clarity improvements. Thus, GtG becomes important again in the high-Hz stratosphere.

Yes, manufacturer claims of 1ms GtG isn't always truly accurate 1ms. But for the ones that are "good and fast enough" pixel response that is 1ms for 80% pixel color transition (they measure from GtG10%->GtG90%). If that's truly done accurately (with good neutral overdrive) -- then it actually almost completely ceases to interfere with persistence-based motion blurring at these current refresh rates (120Hz, 240Hz, etc) -- and you only contend with faint ghosting/corona artifacts trailing behind very sharp motion (240fps@240Hz having half motion blur of 120fps@120Hz at the same motionspeeds on the same panel...)

Even with imperfect "3ms-4ms GtG" versus imperfect "1ms GtG" (claimed & actual), there's way more headroom on TN for very noticeable motion clarity improvements in jumps to higher Hz. With simple eyeballing of TestUFO motion, I have noticed that TN 165Hz->240Hz jump is bigger than the IPS 120->165Hz jump (GtG-amplified diminishing points of returns)

GtG (poor overdrive) are also why the best 240Hz TN monitors have half the motion blur of the most motion-blurry 240Hz TN monitor. (That's TestUFO clarity, in non-strobed mode). In this Hertz stratosphere, LCD pixel response (GtG) issues make a major effect. Even slightly poor overdrive actually make a dramatic clarity difference again.
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Falkentyne
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Re: ZOWIE XL2546

Post by Falkentyne » 15 Aug 2017, 02:05

Can you please do me a VERY Big favor, and go into the service menu and DISABLE DyAC, and see if Freesync becomes available on an AMD video card? (this may require a windows restart).

To go into the service menu, power off the monitor (make sure it has been powered on previously without being unplugged), then hold down button #4, press the power button, do not release button #4 until the screen appears, then release it. Then press button 4 to enter the service menu.

The "Factory" menu, with the Overdrive Gain setting (which you SHOULD use) is button #3 and #4 held down, with the same method, instead of just button #4. (button 5 enters the factory menu afterwards).

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Re: ZOWIE XL2546

Post by darzo » 15 Aug 2017, 03:16

The coming 1440 ultrawide monitors at 200hz will be a different type of panel, neither TN nor IPS. What's the verdict on that type? Will IPS remain a bad idea for very high refresh rate monitors for years to come?

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Re: ZOWIE XL2546

Post by Chief Blur Buster » 15 Aug 2017, 06:53

AFAIK, that's VA, right? VA is even slower than both IPS and TN. It also has more asymmetric ghosting attributes too (more laggy for dark colors than bright colors).

There are people who dislike TN's narrower viewing angles. IPS can be an excellent compromise with beautifully wide 178-degree viewing angles. The 165 Hz IPS monitors on the market have been pretty good, but from what I've now seen, they really show their diminishing points of returns far sooner than TN monitors.
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darzo
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Re: ZOWIE XL2546

Post by darzo » 15 Aug 2017, 12:24

So what in the world are they thinking with expensive 200hz VA monitors?
Allegedly, ASUS uses the same AMVA (Advanced Multi-Domain Vertical Alignment) panel developed by AU Optronics that’s used in the soon to be released Acer Predator Z35P monitor. The panel specifications of the Z35P model include 4ms response time speed (gray to gray) and true 8-bit color depth.
Will IPS be a good idea at such refresh rates in the coming year or should we stick to TN?

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Re: ZOWIE XL2546

Post by Chief Blur Buster » 24 Aug 2017, 22:57

You still get motion clarity benefits at higher Hz for VA and IPS, but they don't improve as rapidly when you're pushing pixel response limits. IPS and VA don't improve very well above 120Hz at the moment, while there's still a very noticeable clarity jump for TN 120Hz versus TN 240Hz (as long as your GPU can push 240fps).

You also get reduced phantom-array effects (www.testufo.com/mousearrow) regardless of panel tech. Just your motion blur may cease to go down beyond a certain Hz on slower panels.
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