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post #11 of 847 (permalink) Old 09-05-2015, 11:11 AM
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Quote:
Originally Posted by Falkentyne View Post

wrong smile.gif

instant mode is 'supposed' to bypass some of the scaler electronics to speed up the response time.
Response time/input lag with instant mode on is around 4-8 ms.
With instant mode off its 16-20 ms.

You can't tell in a normal testUFO ghosting test, but you can on the lagom.nl response time test.

I know that with Instant mdoe OFF on my XL2720Z, the vertical total tweaks don't work to lower the amount of the blur reduction "crosstalk" area, even though the strobe pulse widths still change.
But with instant mode on, using a Vertical Total 1500 tweak (default is 1125 VT) lowers crosstalk size by 25%.

No idea how this affects your screens though.


BTW can any of you guys explain this?



This is an XL2720Z, NOT an XL2730Z. A 1920x1080 screen....

Dang, that would have been guess number 2...

And i would guess that the 2720 can take a 1440p signal and downsample to 1080, like a few of the 1080p TVs can take a 4k input

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post #12 of 847 (permalink) Old 09-05-2015, 11:57 AM
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This works on the XL2411Z also, over DVI (with the pixel clock patcher). No problems.
120hz shuts off the monitor completely over DVI. Doesn't even show Out of Range...just goes into power save mode. Pixel clock exceeds all limits.
120hz over displayport=478 MHz pixel clock. Shows an image but swimming pixels. Not stable.

I'll make a new post about it. This would work over Linux also...

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post #13 of 847 (permalink) Old 09-08-2015, 12:04 PM - Thread Starter
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Updated my second post with Linus' XL2730Z review.
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post #14 of 847 (permalink) Old 09-12-2015, 09:41 AM
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Thinking of getting this monitor just because of the BenQ blur reduction. Catch is - I have SLI 980Tis. Never really experienced gsync, but with reading around, it will only be useful on lower fps. Is that correct?

The 2730z here are probably revision 1 with the freesync-AMA bug. Since i'm not going back to red anytime soon, will this be an issue? (Getting the firmware updated here is problematic).

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post #15 of 847 (permalink) Old 09-12-2015, 10:52 AM
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Well, If you want this monitor ONLY because of the benq blur reduction, and not for the freesync capability, you're better off downgrading a bit to the XL2720Z. The XL2720Z with firmware V4 has much better blur reduction capability than the XL2730Z, despite it being only a 1080p panel. Someone above got the XL2730Z to work with the "AMA Low" setting, I think in this or the other xl2730z thread (this is a blur reduction toggle of AMA high) but then it didn't work anymore, he said; it's probably still available, but I don't have this monitor).

the XL2720Z however, with V4 firmware, has some big advantages over the XL2730Z if you can handle a 1080p 27" panel
1) AMA Low blur reduction (ONLY) toggle, enable MBR, then set AMA to high afterwards (or just highlight high and press back) recalibrates the AMA to low. Works best with a contrast lower than 15. This toggle (AMA low) did NOT exist in original release or V2 firmware. This was an undocumented 'feature' added.

2) Blur reduction capability from 60 hz to 129 hz in 1 hz increments, via custom resolutions, and single strobe option for 60hz-90hz, by enabling "Single strobe" in the service menu (this option is missing from XL2730Z).
3) Vertical total tweaks to improve the strobe crosstalk by changing the area the scaler works with for strobing (Changing the vertical total to 1502 (100hz and 125hz) or VT 1500 (@120hz; I found VT 1502 buggy at 120hz), can reduce strobe crosstalk by about 25%. VT tweaks don't lower strobe crosstalk on XL2730Z: see Bishi's tests in this thread:

http://forums.blurbusters.com/viewtopic.php?f=13&t=2222&start=20

XL2730Z strobe crosstalk at 120hz is equal to XL2720Z strobe crosstalk at 120hz without a VT Tweak.
(Note: XL2720Z running at a scaler downsampled resolution of 2560x1440--yes it can run at this resolution via an edid override and VT 1500 but only at 100hz) has identical strobe crosstalk as XL2730Z (at native 2560x1440).

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post #16 of 847 (permalink) Old 09-12-2015, 12:19 PM
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Thanks Falkentyne,

While blur reduction is high on my list, better picture quality and higher resolution would be nice too. I came from a XL2420 before and have switched over to IPS. Not really happy with it in fps gaming. Thus making the switch back to TN.

I've read that the 2730z has picture quality than older TN tech. Is it the same with the 2720z? What about the brightness during strobing mode?

Regards,
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post #17 of 847 (permalink) Old 09-12-2015, 01:06 PM
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Lanvin ...

The XL2730Z uses an 8-bit TN panel {AU Optronics TN Film (#M270DTN01.0)} so yeah its picture quality is MUCH better than most TN panels you've seen or used before, where as the xl2720z panel {AU Optronics TN Film (M270HTN01.0)} is the more conventional 6-bit TN panel, but with a Frame Rate Control that still produces 16.7 Mil colors, and looks almost as good. Both have brightness levels that are wickedly HIGH and TOO BRIGHT almost.

These are great monitors by every metric, you're Team Green ... so you may want to read this review = https://www.overclock.net/t/1571693/review-benq-xl2730z-from-an-nvidia-perspective

So far I'm really liking the BenQ XL2730Z ... but I'm still playing with the settings and my crossfire R9 290X set-up to see what gives me the best results.

The 2560 x 1440 resolution provides just a boat load of onscreen real estate, and at 144 Hz you almost don't need to worry about Free-sync or G-sync

Really the only downside to this Monitor is the PRICE, it's not cheap to say the least, but I will say once you get it, it does feel like and look like it's worth that money ... the build quality and overall picture quality and it's Spec's are above anything else in it's class. thumb.gif
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post #18 of 847 (permalink) Old 09-12-2015, 01:32 PM
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The XL2730Z is a great monitor, and Benq (apparently) switched the panel hardware itself in upgrades to V002 firmware, but the blur reduction with all the firmware bugs is a major step backwards. Other than the buggy blur reduction, it works great. And I agree the picture quality is like the ROG Swift...very nice for a TN panel thumb.gif

I mean even the ULMB Gsync monitors can strobe at 85, 100 and 120hz. The xL2730Z can only strobe at 120hz. Yes I know it "can" strobe at 144hz. but if the strobe circuit works the same way as the XL2720Z, the crosstalk should cover literally -half- the screen at 144hz. Have you guys seen it? (i'll eat my foot if I'm wrong, but on the XL2720Z and the 24" brothers, it covered half the screen, making it almost useless in windows and any game without a giant sized bottom HUD).

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post #19 of 847 (permalink) Old 09-12-2015, 03:54 PM
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Quote:
Originally Posted by Lanvin View Post

Thinking of getting this monitor just because of the BenQ blur reduction. Catch is - I have SLI 980Tis. Never really experienced gsync, but with reading around, it will only be useful on lower fps. Is that correct?

The 2730z here are probably revision 1 with the freesync-AMA bug. Since i'm not going back to red anytime soon, will this be an issue? (Getting the firmware updated here is problematic).

You're missing out then, unless you need to play CS:GO at a billion fps Gsync/Freesync is the way to go. If you had bought a Gsync 1440p instead of a second 980ti you would probably have never felt the need for another card wink.gif

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post #20 of 847 (permalink) Old 09-12-2015, 06:17 PM
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You're missing out then, unless you need to play CS:GO at a billion fps Gsync/Freesync is the way to go. If you had bought a Gsync 1440p instead of a second 980ti you would probably have never felt the need for another card wink.gif

The only 1440p Gsync here is just the ROG Swift and availability is very low too. Also, don't want to play the lottery(pixel inversion, dying issues) on that panel because the item return policy here is not very easy/convenient, especially for ASUS products. Also ROG Swift = 1000 USD here, 2730z = 550~600 USD.

Anyway, the second card is for my 4k panel when i'm playing RPGs @60hz. I'm looking at the 144hz panels for FPS gaming only.
Quote:
Originally Posted by LA_Kings_Fan View Post

Lanvin ...

The XL2730Z uses an 8-bit TN panel {AU Optronics TN Film (#M270DTN01.0)} so yeah its picture quality is MUCH better than most TN panels you've seen or used before, where as the xl2720z panel {AU Optronics TN Film (M270HTN01.0)} is the more conventional 6-bit TN panel, but with a Frame Rate Control that still produces 16.7 Mil colors, and looks almost as good. Both have brightness levels that are wickedly HIGH and TOO BRIGHT almost.

These are great monitors by every metric, you're Team Green ... so you may want to read this review = https://www.overclock.net/t/1571693/review-benq-xl2730z-from-an-nvidia-perspective

So far I'm really liking the BenQ XL2730Z ... but I'm still playing with the settings and my crossfire R9 290X set-up to see what gives me the best results.

The 2560 x 1440 resolution provides just a boat load of onscreen real estate, and at 144 Hz you almost don't need to worry about Free-sync or G-sync

Really the only downside to this Monitor is the PRICE, it's not cheap to say the least, but I will say once you get it, it does feel like and look like it's worth that money ... the build quality and overall picture quality and it's Spec's are above anything else in it's class. thumb.gif
Quote:
Originally Posted by Falkentyne View Post

The XL2730Z is a great monitor, and Benq (apparently) switched the panel hardware itself in upgrades to V002 firmware, but the blur reduction with all the firmware bugs is a major step backwards. Other than the buggy blur reduction, it works great. And I agree the picture quality is like the ROG Swift...very nice for a TN panel thumb.gif

I mean even the ULMB Gsync monitors can strobe at 85, 100 and 120hz. The xL2730Z can only strobe at 120hz. Yes I know it "can" strobe at 144hz. but if the strobe circuit works the same way as the XL2720Z, the crosstalk should cover literally -half- the screen at 144hz. Have you guys seen it? (i'll eat my foot if I'm wrong, but on the XL2720Z and the 24" brothers, it covered half the screen, making it almost useless in windows and any game without a giant sized bottom HUD).

Thanks for your insightful replies. Will decide in a few days which one to get. smile.gif

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