XL2411Z, XL2420Z or XL2430T

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Anonymous90

XL2411Z, XL2420Z or XL2430T

Post by Anonymous90 » 08 Aug 2015, 09:26

Current pricing where I live: 280€ XL2411Z, 330€ XL2420Z, 390€

My planned usage is 90% competetive CSGO and 10% other games. I have an IPS for everything else.
I don't necessarily need DP, a better stand or the S-switch. All I care about is a perfect picture. Now I read that all 3 monitors have the same panel so I'm assuming colors/overall image quality should be the same after some calibration? Also I've read that the black equalizer (even 2.0 on the 30T) causes problems in games such as CSGO, and just doesn't work very well.

Now what confuses me is all the motion blur stuff. It seems that firmware v4 on the 11Z and 20Z improves Overdrive to the point where it's identical to the 30T's "High" setting?

I'm assuming I'll want to use the blur buster strobe utility for maximum blur reduction/input lag compensation. As this is not available on the 30T, and with the blur reduction supposedly being (almost?) the same on all 3 monitors after v4, is there any reason why I should get the 30T? Or the 20Z over the 11Z for that matter?

Falkentyne
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Joined: 26 Mar 2014, 07:23

Re: XL2411Z, XL2420Z or XL2430T

Post by Falkentyne » 08 Aug 2015, 10:23

I would personally get the XL2420Z over the XL2411Z just because you get the DP port. And that port is important.
The XL2430T does not have the Lightboost setting, which some people might want, because Lightboost on the 24" monitors has a LOT LESS OVERDRIVE inverse ghosting (especially if you drop the contrast) than Benq blur reduction does, and this can matter in certain 2D side scrolling games (assuming you have an Nvidia card to unlock Lightboost).

With the XL2720Z "AMA Low" toggle, you don't need lightboost anymore since this sets the overdrive to around lightboost quality (keep in mind that lightboost on the 27" monitors all have significantly more ghosting than lightboost on the 24" monitors), mainly due to the 27" monitors keeping a 950:1 contrast ratio in lightboost mode, while the 24" monitors can barely manage 450:1.

From what I can tell from people who uploaded screen captures of the XL2430T, it was quite grainy quality wise (From the camera, not talking about the overdrive quality), but the AMA high setting with blur reduction looked no worse than the existing XL2720Z (without the XL2720Z's AMA high toggle "Ama low" (toggling ama high after enabling blur reduction, not before)).

No one who I know of has tested the XL2430T to see if toggling AMA high *AFTER* enabling blur reduction reduces the overdrive level or not.

On XL2411Z and XL2420Z (V4 firmwares), enabling blur reduction and then toggling AMA to high afterwards, reduces the amount of overshoot ghosting by a tiny <5% (you can tell but it's very difficult). This reduction is about the same as the toggle on the XL2720Z's AMA Premium toggle (<5% lower overdrive). Only the XL2720Z has the "AMA Low" toggle, which reduces the overdrive of AMA high by "about" 50%. This seems to make it identical to the Lightboost's AMA calibrated setting (when contrast is reduced to 0 and then comparing Lightboost at contrast 0 with XL2720Z V4 "AMA low" at contrast 0.

Doing this on V2 firmware would -increase- the overdrive intensity by about 50% (on all of the monitors).

Anonymous90

Re: XL2411Z, XL2420Z or XL2430T

Post by Anonymous90 » 09 Aug 2015, 06:55

Why is the DP port so important?

Falkentyne
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Joined: 26 Mar 2014, 07:23

Re: XL2411Z, XL2420Z or XL2430T

Post by Falkentyne » 09 Aug 2015, 07:33

frankfurt wrote:Why is the DP port so important?
Because videocards are coming out without DVI ports now.
DVI Is *OLD*. The original spec called for 165 MHz pixel clock. Dual link is 330 MHz unless you patch the driver. The only thing special about DVI is it was the first digital connection. Because of this, most setting that used to be handled by monitor pots/circuits over VGA were moved to the videocard drivers (ever see non functional "Color Gain" " Color Offset" RGB settings in a service menu? Those are for VGA connections even if the monitor doesn't have a VGA dsub cable).

dhaine
Posts: 49
Joined: 22 Nov 2014, 00:25

Re: XL2411Z, XL2420Z or XL2430T

Post by dhaine » 09 Aug 2015, 23:05

I heard someone said to go with the 2430T due to the much higher brightness it can do (with benq blur reduction).
For CSGO you will need 144hz without bbr for lowest input lag so in the end it probably doesn't matter which one you choose

Falkentyne
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Joined: 26 Mar 2014, 07:23

Re: XL2411Z, XL2420Z or XL2430T

Post by Falkentyne » 10 Aug 2015, 03:33

dhaine wrote:I heard someone said to go with the 2430T due to the much higher brightness it can do (with benq blur reduction).
For CSGO you will need 144hz without bbr for lowest input lag so in the end it probably doesn't matter which one you choose
I Don't know who told you that but that's entirely false.
The XL24* series all use the exact same monitor panel and have the exact same brightness.
Using a VT tweak accelerates the scanout to lower the amount of crosstalk in blur reduction mode, AND also increases the brightness.
However it's worth noting that the HIGHER the refresh rate, the more crosstalk will be present with a VT tweak, AND the higher the brightness will be at the same strobe persistence (with a VT tweak). The panel model doesn't change this.

125 hz with a VT 1498-1502 tweak (XL2720Z only works at VT 1498 at 125hz due to strobe sync errors at higher) will have the most brightness at a given persistence, with refresh rates that can use VT tweaks (128hz is the absolute limit, 129hz tends to go out of range randomly, but it's far better to use a refresh rate that divides into the polling rate of your mouse; 125/1000 divides evenly. 100/1000 also does. 120/1000 does not (based on 1000hz or 500hz polling rates).

144hz can not use VT tweaks.
Having strobe phase at the 'high' end of the persistence table (strobe phase 100 without a VT tweak, strobe phase (Backlight shut off point - strobe duty value) with a VT tweak, will improve input lag by 1 frame (1000 / hz (1000 divided by refresh rate)) in ms.

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CybeRFernandes
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Location: Portugal

Re: XL2411Z, XL2420Z or XL2430T

Post by CybeRFernandes » 13 Aug 2015, 12:32

All of the three use the same panel, that said, color reproduction will be around the same with calibration. It all comes down to your budget, if you have that extra spare $$$ and you'd rather have an eye pleasing monitor with the s-switch so you can have different game profiles, i'd definitely choose the XL2430T.

I own one myself, i had to play around with the settings at the beggining which took me while (since i was one of the first people to buy this model and there weren't any guides or walkthroughs to get the best out of it) but after that, I couldn't be happier with it. I've created a topic on my personal settings, if you decide to buy this one, take a look here: http://forums.blurbusters.com/viewtopic.php?f=2&t=1848

dhaine
Posts: 49
Joined: 22 Nov 2014, 00:25

Re: XL2411Z, XL2420Z or XL2430T

Post by dhaine » 04 Sep 2015, 15:43

Falkentyne wrote: The XL24* series all use the exact same monitor panel and have the exact same brightness.
Using a VT tweak accelerates the scanout to lower the amount of crosstalk in blur reduction mode, AND also increases the brightness.
However it's worth noting that the HIGHER the refresh rate, the more crosstalk will be present with a VT tweak, AND the higher the brightness will be at the same strobe persistence (with a VT tweak). The panel model doesn't change this.
Thanks for the clarification.

About the brightness, I read that on tftcentral but it's about the 2730z so I thought the 2430z would benefit from a better brightness too ? This is what they said about 2730z :
The maximum brightness achieved here was actually very good at 191 - 195 cd/m2. That is quite a lot higher than was achieved on the XL2720Z model (118.6 cd/m2 maximum) and on the Asus ROG Swift PG278Q (122.67 cd/m2). That's good news for fans of Blur Reduction modes as the brightness is often not sufficient for many users.
http://www.tftcentral.co.uk/reviews/benq_xl2730z.htm

So it is possible that same panel can deliver different brightness ? or the 27" is different ?
[EDIT] ok i understand now 2730z is a 1440p panel while 2430t is 1080p
144hz can not use VT tweaks.
Having strobe phase at the 'high' end of the persistence table (strobe phase 100 without a VT tweak, strobe phase (Backlight shut off point - strobe duty value) with a VT tweak, will improve input lag by 1 frame (1000 / hz (1000 divided by refresh rate)) in ms.
I'm not sure to understand
144hz is faster input lag than 125hz + VT in all case due to 7ms vs 8ms ?
it's far better to use a refresh rate that divides into the polling rate of your mouse; 125/1000 divides evenly. 100/1000 also does. 120/1000 does not (based on 1000hz or 500hz polling rates
are you saying that 144hz is bad ? ^^

Falkentyne
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Joined: 26 Mar 2014, 07:23

Re: XL2411Z, XL2420Z or XL2430T

Post by Falkentyne » 04 Sep 2015, 16:11

For smoothest motion clarity, yes, because 144 hz does not divide into 125, 250, 500 or 1000. Those are the mouse polling rates over USB.

Fear
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Joined: 30 Aug 2015, 19:32

Re: XL2411Z, XL2420Z or XL2430T

Post by Fear » 05 Sep 2015, 11:54

CybeRFernandes wrote:All of the three use the same panel, that said, color reproduction will be around the same with calibration. It all comes down to your budget, if you have that extra spare $$$ and you'd rather have an eye pleasing monitor with the s-switch so you can have different game profiles, i'd definitely choose the XL2430T.

I own one myself, i had to play around with the settings at the beggining which took me while (since i was one of the first people to buy this model and there weren't any guides or walkthroughs to get the best out of it) but after that, I couldn't be happier with it. I've created a topic on my personal settings, if you decide to buy this one, take a look here: http://forums.blurbusters.com/viewtopic.php?f=2&t=1848
Have you ever compared benq blur reduction vs lightboost? is the benq blur reduction worse or better?

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