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First 1440p 240hz monitor! Lenovo Y27gq

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Re: First 1440p 240hz monitor! Lenovo Y27gq

Postby MatrixQW » 17 Jan 2019, 13:50

The monitor seems amazing but i would rather pay 1000€ for a good oled gaming monitor.

To get to the lowest input lag and response times means we must use the highest overdrive setting, wich noone ever uses, right?
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Re: First 1440p 240hz monitor! Lenovo Y27gq

Postby MatrixQW » 17 Jan 2019, 14:47

I ask this because when you see advertised 1ms or in this case 0,5ms means you will get that if you use the highest overdrive setting.
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Re: First 1440p 240hz monitor! Lenovo Y27gq

Postby Chief Blur Buster » 17 Jan 2019, 20:35

MatrixQW wrote:To get to the lowest input lag and response times means we must use the highest overdrive setting, wich noone ever uses, right?

Not necessarily. The 0.5ms may have been measured at normal overdrive setting.

Very good fast native GtG can produce better-looking overdrive with less overshoot artifacts.

The existence of native GtG that is extremely fast, makes it easier to add overdrive without adding visible ghosting/coronas.

There are still human-visible improvements to clean 0.5ms GtG versus clean 1.0ms GtG when it comes to ultra-high refresh rates.

GtG doesn't matter at 60Hz when 1ms is only a tiny fraction of 60Hz (1/60sec = 16.7ms), but it becomes a massive chasm at 480Hz (1ms is 50% of a 480Hz refresh cycle). The higher the refresh rate, the more visible GtG problems becomes.

240Hz is the refresh rate where going faster than 1ms becomes useful, and for future 480Hz it becomes essentially much more necessary.

Image

Blur Busters Law 1ms = 1 pixel of motion blur per 1000 pixels/sec.
Remember, at the standard TestUFO speeds (nearly 1000 pix/sec), 1 pixel = 1ms

Observe the symmetry between left and right edges.
1. In OFF, there's ghosting at the left edge. (Roughly 8ms worth = 8 pixels of discolored blur as "ghost")
2. In Extreme, there's a bright corona at the left edge (roughly 8ms worth = 8 pixels of discolord blur as "corona")
3. In Normal, it's almost symmetric. But not perfectly symmetric because 1ms GtG isn't perfect enough to make it perfectly symmetric

Pixel response limitations often last for approximately 2 refresh cycles on TN
(can be way more on some panels, especially for dark colors on for VA panels).

At 1920 pixels/sec, the 1ms GtG limitations start to become much more human-visible, and this is where 0.5ms GtG can help make the left/right edges of fast horizontal motion much more symmetric looking, but even 0.5ms still won't be the final frontier (going better than 0.5ms will still be needed in the continued Refresh Rate Race 240Hz->480Hz->960Hz of the 2020s/2030s/2040s).

--> That's why I school those "0.5ms vs 1.0ms" naysayers. <--

<Blur Busters Technology Pandora Box="OPEN">
Complication: Variable refresh rates. Also, GtG often remains constant during variable refresh rate operation, so ghosting/corona discolorations can vary during framerate changes. Dynamic overdrive (variable overdrive) on variable refresh rate displays need to try to maintain the blur symmetry at ALL refresh rates, which is extremely challenging, especially considering it has to predict overdrive for the NEXT frametime, not the previous frametime. Poorly-tuned variable refresh rate monitors have extremely bad variable ghosting artifacts during varying framerate situations. Good ones (especially ones calibrated by NVIDIA for G-SYNC) often have superior consistency in overdrive at all framerates, but even 1ms GtG starts showing major limitations. Turning off overdrive (3ms GtG) is dead-on-arrival, as that sometimes creates 6 pixels of asymmetry at 2000 pixels/sec, so overdrive needs to be enabled to equalize the blur and make it closer to a symmetric blur rather than an asymmetric blur. Alas, if only we had 0.1ms GtG pixel response WITHOUT overdrive.... (OLED, hint, hint).
</Blur Busters Technology Pandora Box>
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Re: First 1440p 240hz monitor! Lenovo Y27gq

Postby Malinkadink » 18 Jan 2019, 02:17

Any freesync alternatives? $1k for a TN is a bit much, hell so was the PG278Q at $800 when it launched but it made sense to charge that much back then as it was the first native 144hz 1440p monitor and gsync was also relatively new back then.

I think a comparable freesync monitor will probably be $600 which is acceptable to me for a 240hz 0.5ms 1440p display.
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Re: First 1440p 240hz monitor! Lenovo Y27gq

Postby Chief Blur Buster » 18 Jan 2019, 18:28

Not yet.

I do expect a big boom of 1440p 240Hz in the coming 12 months, though.
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       • Official List of Best Gaming Monitors
       • List of G-SYNC Monitors
       • List of FreeSync Monitors
       • List of Ultrawide Monitors
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Re: First 1440p 240hz monitor! Lenovo Y27gq

Postby paktd » 04 Feb 2019, 22:49

If this monitor can do 1440p@240 Hz, does it means that it can work on 720p@480 Hz, or I got wrong some materials I've read on blurbusters?
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Re: First 1440p 240hz monitor! Lenovo Y27gq

Postby Chief Blur Buster » 03 Apr 2019, 13:37

paktd wrote:If this monitor can do 1440p@240 Hz, does it means that it can work on 720p@480 Hz, or I got wrong some materials I've read on blurbusters?

That's a monitor by monitor-specific feature.

Some monitors can do higher Hz at lower resolutions.
Other monitors cannot do that.

Therefore, Just because Monitor "A" can do higher Hz at lower res, does not mean Monitor "B" is able to.
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       • Official List of Best Gaming Monitors
       • List of G-SYNC Monitors
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Re: First 1440p 240hz monitor! Lenovo Y27gq

Postby ericl » 29 Apr 2019, 12:48

This monitor is LATE!

Should have been here by April... and well, they have 1 more day. :|

I'm disappointed and have no where else to vent. I wanted to buy it.
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Re: First 1440p 240hz monitor! Lenovo Y27gq

Postby Notty_PT » 05 May 2019, 03:14

I´m not personally excited about this monitor due to its size. Imo 240hz is targeted for e-sports/competitive games. 27 inches is not e-sports friendly and 1440p is defo a resolution I would use on a game like Tomb raider or Metro Exodus, where 240hz are not important, 120hz would do!

I´m more excited about future 240hz 1080p panels with 0,5ms GtG response time, but there´s still low demand for 240hz overall, so companies are not worried about bringing new models to the market. 60hz is still the most used and 144hz is the next step.
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Re: First 1440p 240hz monitor! Lenovo Y27gq

Postby Stitch7 » 11 May 2019, 10:30

Notty_PT wrote:I´m not personally excited about this monitor due to its size. Imo 240hz is targeted for e-sports/competitive games. 27 inches is not e-sports friendly and 1440p is defo a resolution I would use on a game like Tomb raider or Metro Exodus, where 240hz are not important, 120hz would do!

I´m more excited about future 240hz 1080p panels with 0,5ms GtG response time, but there´s still low demand for 240hz overall, so companies are not worried about bringing new models to the market. 60hz is still the most used and 144hz is the next step.


Exactly. I expect an eSports monitor to be 24" at max. Even 24.5" is too much for me, but if it outperforms a 24" by a mile I'd give it a shot.
I tried the LG 27" and it was horrible. I couldn't see my boost counter in Rocket Legaue, my ammo in R6 and it took half my desk space and I even had to dismount a shelf.
The journey to a good monitor that doesn't throw you off really harsh.
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