Presenting the ZOWIE XL2540 240Hz

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Q83Ia7ta
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Re: Presenting the ZOWIE XL2540 240Hz

Post by Q83Ia7ta » 16 Nov 2016, 16:04

gulul wrote:Are the 240 hz really native? Or do the monitor use gpu scaling to achieve 240 hz? For instance every 144 hz benq monitor is a 120 hz panel that can reach 144 hz if using gpu scaling (with nvidia graphic cards, dont know with ati). If you are using windows 7, the easiest way to check that is to set the monitor to 240 hz and then check if you can use the display scaling features. So if you can select those options
It's 240Hz. 144Hz monitors are 144Hz monitors. There is no any "gpu scaling" for refresh rate...

gulul
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Re: Presenting the ZOWIE XL2540 240Hz

Post by gulul » 16 Nov 2016, 17:14

Q83Ia7ta wrote:
gulul wrote:Are the 240 hz really native? Or do the monitor use gpu scaling to achieve 240 hz? For instance every 144 hz benq monitor is a 120 hz panel that can reach 144 hz if using gpu scaling (with nvidia graphic cards, dont know with ati). If you are using windows 7, the easiest way to check that is to set the monitor to 240 hz and then check if you can use the display scaling features. So if you can select those options
It's 240Hz. 144Hz monitors are 144Hz monitors. There is no any "gpu scaling" for refresh rate...
Sorry but i dont think this is correct. Otherwise why does my benq tell me that the optimum refreshrate is 120?

Image

If i set my monitor to 144 hz, it's always gpu scaling. The only way to obtain something similar, but display scaling, is using cru and try to force a value near to 144, but it change from monitor to monitor. The same model can reach 143 hz, some can't go past 120. The fact my osd is telling me that the optimum refresh rate should be 120 lead me to the conclusion that every 144 hz monitor is just a 120 hz "overclocked". I can be wrong but the fact is: i want a monitor where i can use display scaling while playing native resolution. I dont have problem playing other games @ 144 hz, but i can't on cs go, i feel a delay in mouse responsiveness (in order of 5-10 ms). So, if the new panel is a 240 hz that let me play with display scaling for me it's worth the money. If i can't (it's a 120 hz that can reach 240) i can easily buy an xl2430 and spare some money.

Q83Ia7ta
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Re: Presenting the ZOWIE XL2540 240Hz

Post by Q83Ia7ta » 16 Nov 2016, 17:57

gulul wrote:Sorry but i dont think this is correct. Otherwise why does my benq tell me that the optimum refreshrate is 120?
Other 144Hz don't have text: optimum resolution at OSD. So they are 144Hz native by your logic, aren't they?
gulul wrote:If i set my monitor to 144 hz, it's always gpu scaling.
May be because processing (scaling, resize) needs too many calculations at 144Hz and monitor can't handle it? Or may be processing takes too long and causing latency (input lag) that you feel like delay in mouse responsiveness.
just look like XL2420T with 19" mode has input lag comparing to older one XL2410T.
https://www.youtube.com/watch?v=pHfxsJPiFRU

Image

I guess reason is a latency and BenQ prevents players from getting latency (input lag) to give player best feelings from his fast 144Hz monitor.
gulul wrote:The only way to obtain something similar, but display scaling, is using cru and try to force a value near to 144, but it change from monitor to monitor. The same model can reach 143 hz, some can't go past 120. The fact my osd is telling me that the optimum refresh rate should be 120 lead me to the conclusion that every 144 hz monitor is just a 120 hz "overclocked". I can be wrong but the fact is: i want a monitor where i can use display scaling while playing native resolution.
This monitor have out of box 144Hz refresh rate that can be selected at OS. No overclocking tools needed, no OSD options (like some monitor has it to enable monito overclock. for example PG279Q, PG248Q https://www.pcper.com/files/imagecache/ ... C09109.jpg )
gulul wrote:I dont have problem playing other games @ 144 hz, but i can't on cs go, i feel a delay in mouse responsiveness (in order of 5-10 ms). So, if the new panel is a 240 hz that let me play with display scaling for me it's worth the money. If i can't (it's a 120 hz that can reach 240) i can easily buy an xl2430 and spare some money.
You can't play with low resolution and nvidia scaling? Just don't use low resolution. Try other variants like custom resolution 1440x1080@144Hz and try nvidia scaling "No scaling".
Or you can't play at 144Hz 1920x1080 without any scaling? Clear csgo config and setting...
Native resolution 1920x1080 and 144Hz without any scaling (nvidia and by monitor) will give you best minimum possible input lag.

I think there is no need to continue arguing in this thread. Make a new one with questions about scaling and "144hz by gpu scaling".

srsbsns
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Re: Presenting the ZOWIE XL2540 240Hz

Post by srsbsns » 16 Nov 2016, 19:21

For clarification the optimum refresh rate message is there for two reasons. The monitor's advertised contrast ratio is achieved at 120Hz. The 144hz setting is merely there for 3D. While you can use it in 2D the color and contrast are not "Optimal" :roll:


"120Hz was a common standard. But 144Hz is a higher number, and when one vendor made a 144Hz monitor the other ones had to as well. That's basically why.
It's also theoretically better for 3D monitors when watching 3D movies, because when you divide 144Hz by two (splitting the frames between each eye) 72Hz is still an even multiple of 24Hz for smooth cinema content, while 120Hz -> 60Hz is not."

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RealNC
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Re: Presenting the ZOWIE XL2540 240Hz

Post by RealNC » 16 Nov 2016, 19:27

GPU scaling has absolutely nothing to do with refresh rate.
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gulul
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Re: Presenting the ZOWIE XL2540 240Hz

Post by gulul » 16 Nov 2016, 19:55

RealNC wrote:GPU scaling has absolutely nothing to do with refresh rate.
Ye but i can't use display scaling when in 144hz mode.

Even if you are right my question is still valid: can you use the display scaling menu when using the monitor in 240hz mode? according to the zowie rep you can, now we just need a confirmation. If i can't let the display do the scaling when the monitor is in 240hz for me (and others) this new version is useless :D

Falkentyne
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Re: Presenting the ZOWIE XL2540 240Hz

Post by Falkentyne » 16 Nov 2016, 20:52

You can't use scaling in 144hz mode because the Vertical Total is reduced.
I believe this reduction in VT had to do with video RAM clocks needing retraining, which is why the clocks ran at full 3D clocks when the Vertical Total is reduced to 1098. You can replicate this at 100hz by making a custom resolution for 100hz and changing the VT from 1133 (default) to 1098--the same thing will happen. Video card will run at 3D memory clocks, scaling will be disabled, card won't downclock (except GPU).

This was complained about like crazy when the first 165hz monitors came out. Nvidia apparently released a driver to allow the cards to downclock.

Denonic
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Re: Presenting the ZOWIE XL2540 240Hz

Post by Denonic » 17 Nov 2016, 02:47

gulul wrote:If i can't let the display do the scaling when the monitor is in 240hz for me (and others) this new version is useless :D
Hope this answers your question :D
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gulul
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Re: Presenting the ZOWIE XL2540 240Hz

Post by gulul » 17 Nov 2016, 10:38

Denonic wrote:Hope this answers your question :D
Thanks a lot that's exactly what i was looking for :D

Q83Ia7ta
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Re: Presenting the ZOWIE XL2540 240Hz

Post by Q83Ia7ta » 20 Nov 2016, 10:18

Denonic wrote:Anybody have any questions about it? I'll do my best to answer.
Please try test by the description at top http://testufo.com/#test=mprt and tell us persistence.

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