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Thread: Pg27uq

  1. #41
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    Dissapointed

    Honestly? - it is NOT A TRUE 10 BIT PANEL???

    Really dissappointed right now...

    That's at this pricepoint a No GO for me...

    a 8 bit panel means, that every color (Red,Green and Blue) has 256 shades... (from white-color to dark-color...)
    a 10 bit panel means that every color has 1024 shades

    The essence is, that a 8 bit panel can show 16,7 million colors (256x256x256)
    a 10 bit panel can show 1024x1024x1024 = 1,07 billion colors

    a true 10 bit panel can really reproduce these colors -
    a 8 bit + FrameRateControl (FRC) panel uses dithering - that means that the panel is flashing between two colors on opposite sides of the color you're trying to approximate - the human eye sort of blends it together to the right color - so FRC is a way to approximate the extra colors

    Can you see a difference?
    YES! The 10 bit variant is smoother on color gradation/transition e.g.

    B bit + FRC is an imperfect solution and closer in quality to basic 8 bit than to real 10 bit color

    Every UHD/HDR Movie is graded now in real 10 bit color -
    so will the most part of games be (if true HDR10 is supported)

    Essence is, that in shadowed areas or in brighter highlight areas there will be not such a smooth color-blending as with a 10 bit panel!

    Just search for 8 bit 10 bit comparisions...

    Some may say -
    'hell even a consumer GTX 1080 just uses internal 8bit+FRC to output a 10 bit signal'
    and that is true -
    but maybe the next generation of GPUs does not use FRC and go straight 10bit?
    in that case the monitor just 'tries' to give you an image that is close to your source-material -
    instead of really showing images as closley to what was intended!

    Question now is:
    Why did you choose to not implement a true 10 bit panel?
    Is it because of the bandwidth? or because of reaction-time?
    or because it wasn't possible to run true 10bit displays at 120/144hz?
    Or just to cut down costs?

    Really looking forward to see first reviews now...
    and some more information of how the monitor is coping with true HDR material over UHD-BluRay via HDMI 2.0
    Last edited by Sichtwechsel86; 04-02-2018 at 01:01 PM.

  2. #42
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    If this is because of the bandwidth, why not just go with 120hz instead of 144hz? To my knowledge DP 1.4 supports 4k 120hz HDR at 10bit. Hell give me 60hz. No single gpu can push modern games past 100fps anyway.

  3. #43
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    Maybe no available gpu right now can push 4K with UltraSettings above 100fps...

    but think about it - two GPU generations in the future -
    and with 120hz there is not much headroom for multiplayer-games which we all want to run as fast as possible to be competitive...

    Of course we all need a new gpu anyways - if we plan on enjoying raytracing in games...
    (which Nvidia stated will be seen in games THIS YEAR! and is only supported by Volta [for now])

  4. #44
    ROG Guru: Yellow Belt Array briansu PC Specs
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    Angry

    Quote Originally Posted by MarshallR View Post
    144 is the max. It's 8bit+FRC.
    EDIT: Sorry I realize my mistake in the post above. Not sure where the error 165 came from.. that should not be there.
    In *theory* the longer you give a pixel to illuminate the more accurate it'll be so *generally speaking* professional grade displays are slower.
    The HDR ecosystem is less mature on PC at this time, but it will get better as time goes on.
    There's a lot of work happened since CES on the performance. There's an additional option in the OSD now to select the speed of the FALD.

    I updated the thread title to reflect the new ETA
    Thanks for the wealth of info. But May? NVIDIA said both of these would be released in April 2018. Is this a further delay?

    Thanks.

  5. #45
    ROG Guru: White Belt Array MarshallR PC Specs
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    Quote Originally Posted by briansu View Post
    Thanks for the wealth of info. But May? NVIDIA said both of these would be released in April 2018. Is this a further delay?

    Thanks.
    Quote Originally Posted by MarshallR View Post
    I talked to the product manager direct. It's nice to have their support and they are a close development partner, but I think it's better we speak for ourselves as we know our own production and shipping schedules. It's the Carmack rule: it's ready when it's really ready.
    ------

    Quote Originally Posted by deadchip12 View Post
    Wait. PG27UQ is not true 10-bit monitor?

    Honestly I'm not very knowledgeable about this 8-bit, 10-bit thing but will it greatly affect HDR gaming and movie quality? I've seen 4K HDR TVs which claim to be true 10-bit for a while so I'm just surprised PG27UQ is not.
    Please remember 4KTVs are not high PPI, >60Hz. It's a different breed of design. It is a true HDR monitor in the sense that its brightness, contrast and color space adhere to those specs. It is not a professional-grade like the PA32UC or or hyper-enthusiast movie watching like some super-premium 4KTVs, it's a gaming monitor for the PC ecosystem. The AUO inside is the only panel available (and has been for 18 months) that's this fast+high res - this is cutting-edge for its specific application. In future, new ones will be developed, and that's the typical progress of technology and no one can build for unannounced products, but right now this one excels at breaking the boundaries of 4K60 into fast+wider color space+HDR in gaming.

    WRG to bandwidth, I have the results:
    4K/98/HDR - 444
    4K/120/HDR - 422
    4K/144/HDR - 422
    4K/120/SDR - 444
    4K/144/SDR - 444

  6. #46
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    4K-144hz-SDR @ 4:4:4 ???

    i thought DP1.4 wouldn't have enough bandwith to run 4K/144hz at full chroma,

    maybe a mistake - you mean 4k-144hz-4:2:2 ??

    Click image for larger version. 

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    Last edited by Sichtwechsel86; 04-03-2018 at 01:15 PM.

  7. #47
    ROG Guru: Yellow Belt Array briansu PC Specs
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    Hello MarshallR,

    Thank you so much for the update as it's really help for planning logistics and financially. Is this May release applicable world wide? If not, would you be able to let us know when it'll be released in the UK?

    Thanks in advance.


    Brian.

  8. #48
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    Interface bandwith?

    So, if the monitor uses HDMI 2.1 which is out since december 2017, it could deliver 4k 144Hz, but if it doesn't, then it would have to reduce chroma below 4:4:4 (even on 8bit SDR, aka normal operation mode, not just on HDR) aka lose colour information, which would be a total no-go.
    Why would I buy a monitor that is expensive because it has super great picture quality .. and then use 4:2:x chroma to get blurry text/wrong colours?? o_O
    And actually NO graphics card available today has HDMI 2.1 yet, so it's impossible, right?
    Please, can someone say something really enlightening here because I really don't see where we are going here :/
    Last edited by alporta; 04-03-2018 at 03:10 PM.

  9. #49
    ROG Guru: Yellow Belt Array briansu PC Specs
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    Quote Originally Posted by alporta View Post
    So, if the monitor uses HDMI 2.1 which is out since december 2017, it could deliver 4k 144Hz, but if it doesn't, then it would have to reduce chroma below 4:4:4 (even on 8bit SDR, aka normal operation mode, not just on HDR) aka lose colour information, which would be a total no-go.
    Why would I buy a monitor that is expensive because it has super great picture quality .. and then use 4:2:x chroma to get blurry text/wrong colours?? o_O
    And actually NO graphics card available today has HDMI 2.1 yet, so it's impossible, right?
    Please, can someone say something really enlightening here because I really don't see where we are going here :/
    Because the technology to do what you're asking for doesn't exist yet. Notice how long this and the Acer one has been delayed due to various issues. This is unchartered technology with a state of the art panel.

  10. #50
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    Quote Originally Posted by alporta View Post
    So, if the monitor uses HDMI 2.1 which is out since december 2017, it could deliver 4k 144Hz, but if it doesn't, then it would have to reduce chroma below 4:4:4 (even on 8bit SDR, aka normal operation mode, not just on HDR) aka lose colour information, which would be a total no-go.
    Why would I buy a monitor that is expensive because it has super great picture quality .. and then use 4:2:x chroma to get blurry text/wrong colours?? o_O
    And actually NO graphics card available today has HDMI 2.1 yet, so it's impossible, right?
    Please, can someone say something really enlightening here because I really don't see where we are going here :/
    you can run the monitor as followed (based on DP1.4 bandwidth):

    4K+60hz+8bit+SDR @ 4:4:4
    4K+60hz+10bit+SDR @ 4:4:4
    4K+60hz+10bit+HDR @ 4:4:4 (maybe just 4:2:2)

    4K+120hz+8bit+SDR @ 4:4:4
    4K+120hz+10bit+SDR @ 4:2:2
    4K+120hz+10bit+HDR @ 4:2:0
    Last edited by Sichtwechsel86; 04-03-2018 at 09:17 PM.

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