VESA Adds Adaptive-Sync to DisplayPort Video Standard

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, May 12, 2014.

  1. Hilbert Hagedoorn

    Hilbert Hagedoorn Don Vito Corleone Staff Member

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  2. TheDeeGee

    TheDeeGee Ancient Guru

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    But it only works if the monitor has the hardware for it?
     
  3. jbmcmillan

    jbmcmillan Ancient Guru

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    Is that the same as Gsync?
     
  4. TheDeeGee

    TheDeeGee Ancient Guru

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    Probably.

    Why can't they make something that's between the two ends of the cable so it can be used on all DisplayPort Monitors.
     

  5. Denial

    Denial Ancient Guru

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    The monitor has to support Displayport 1.2a but I don't think it requires specific hardware. It does require firmware changes obviously to account for variance in the frame display. So I doubt any previously released monitors will ever get support. But it should work on the last few generations of AMD hardware + a monitor that has support for it.
     
  6. TheDeeGee

    TheDeeGee Ancient Guru

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    Guess i'm stuffed then, since mine only supports 1.1a.
     
  7. Denial

    Denial Ancient Guru

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    I dunno I might not even be right although I'm inclined to believe AMD over random forum users but a guy over at overlock.net posted this.

    Maybe Hilbert or someone can look into this from AMD itself because the original press release AMD definitely made it sound like there would be no hardware required + their current GPU's are capable.

    Like I said I'm inclined to believe in AMD over some random forum poster but I really don't know enough about monitors to say.
     
  8. automaticman

    automaticman Master Guru

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    It sounds more like an official version of what AMD announced as "Free-Sync" a few months back. They pointed out that VESA already incorporates most of what is required for this feature, without all of the specialized hardware and licensing fees that Nvidia's Gsync requires (somewhat unnecessarily it seems now).

    But yeah, the end result is Gsync features built into all devices conforming to VESA and displayport spec.
     
  9. CoMa666

    CoMa666 Master Guru

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    Do you think VG248qe has 1.2a standard?
    I mean i will be ready for AMD Freesync?
     
  10. Denial

    Denial Ancient Guru

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    No, not only does the 248QE not have 1.2a but now, from what i'm reading, freesync does require VBLANK support on the scalar chip. So it does technically require hardware although anyone can integrate it via ASIC chip as oppose to having to go through Nvidia. So Freesync monitors should be significantly cheaper. Although I have no idea if they will be better at doing what they are supposed to do or how the input lag would workout.

    So basically I guess this is how it goes:

    AMD Freesync Requirements - Monitor w/scalar chip with VBLANK support + Any Graphics card that supports it. Scalar chip can be ASIC (which is significantly cheaper than an FPGA) and it can be developed by anyone which should also drive down costs.

    Nvidia G-Sync Requirements - Nvidia supported GSync Monitor (FPGA implementation although Nvidia could eventually switch this to a ASIC implementation as well) + Nvidia graphics card that supports it.

    AMD's solution should be cheaper when it eventually comes out (it could be a while). Nvidia's solution should be upgradable in the future via firmware (why else would they use an FPGA?).

    One may be better than the other in terms of performance. Nvidia's FPGA carries some beefy hardware (ram and stuff) so I'm not sure what exactly it's doing but maybe it could lead to lower input lag.

    Dunno, until one of these companies discloses more stuff on what's going on it's like impossible to say.
     
    Last edited: May 12, 2014

  11. Hilbert Hagedoorn

    Hilbert Hagedoorn Don Vito Corleone Staff Member

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    News-item updated with a QA/FAQ from AMD.
     
  12. semantics

    semantics Member

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    There is a big difference between AMD's and Nvidia's implementations. AMD's predicts the framerate, nvidia doesn't predict the framerate. So i'd rather take nvidia's implementation.
     
  13. yasamoka

    yasamoka Ancient Guru

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    That's not true. It's a baseless assumption. Both work the same at the low level.
     
  14. sykozis

    sykozis Ancient Guru

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    No. It's not the same as G-Sync. G-Sync is "proprietary" and will only ever work with NVidia hardware. Adaptive-Sync is now part of the DisplayPort 1.2a standard and can be used by both AMD and NVidia, if NVidia chooses to support it.
     
  15. PhazeDelta1

    PhazeDelta1 Moderator Staff Member

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    Nvidia has its own Adaptive Sync.
     
    Last edited: May 13, 2014

  16. the11ama

    the11ama Member

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    That guy is a blow-hard, and I don't think he really gets it. Not until competing products start coming out, that is.

    I fully expect Nvidia to cave on this one since AMD's solution will end up being cheaper than their own, and by a sizable-enough portion. Also, it allows hardware vendors to support more potential customers than with Nvidia's proprietary setup.
     
    Last edited: May 13, 2014
  17. sapo_joe

    sapo_joe Master Guru

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    Right in nVidia's stomach...

    AMD opted to OPEN STANDARD their sync technology, guess what. Everyone wants it. I hope nVidia learns this.
     
  18. semantics

    semantics Member

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    It's not baseless, look at their witepaper for freesync. Nvidia the monitor waits for the gpu to set the VBI; freesync the driver guesses the VBI. Granted it has to be an assumption because amd's freesync is still a paper launch product. Plus freesync absolutely won't have the main advantage that gsync has with its direct communication, g-sync is no lag because of it. Gsync is absolutely superior for gaming.
     
  19. SLI-756

    SLI-756 Banned

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    I want it so bad, soon as i pay my 6gb 780 on Thursday this'll be next on the list.
     
  20. ---TK---

    ---TK--- Ancient Guru

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    freesync is open to amd users just like gsync is available to nvidia users whats so open about freesync exactly?
     

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