Rapid Packed Math fp16 to be used in FM Serra, Wolfenstein 2 and Far Cry 5

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Aug 2, 2017.

  1. Hilbert Hagedoorn

    Hilbert Hagedoorn Don Vito Corleone Staff Member

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  2. Kohlendioxidus

    Kohlendioxidus Maha Guru

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    coool but where can I buy a GPU like this? When is the NDA lifted as I see no reviews yet?:3eyes:
     
  3. thatguy91

    thatguy91 Ancient Guru

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    AMD Vega.

    The game/application also has to support it. The difference in quality to the end user will probably be neglible to non-existent, and certainly not visible considering the likely moving nature of where the calculations apply. No doubt someone will do something in 4K, zoom in, enhance the contrast and othre things, and say that in the zoomed, enhanced pic there is 'huge' difference, something someone usually says and you have to look and scan over the picture to see it. This of course would be pointless, because you don't play the game single frame at a time, zoomed in 8 times on a 4K image, with unsuitably high contrast.
     
    Last edited: Aug 2, 2017
  4. BUDA20

    BUDA20 Member

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    how does this compare to NVIDIA Multi-Res Shading in Shadow Warrior 2? :question:

    I remember using the middle settings on a mid-end graphics card and the result was pretty good
     
    Last edited: Aug 2, 2017

  5. RooiKreef

    RooiKreef Master Guru

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    From what I have seen in the last few years, if Nvidia is not going to jump on the band wagon of fp16 and support it on a hardware level, then you will only see a small hand full of games with this feature and then it will disappear in the dust. Same like all the other unique features that AMD has created in the last couple of years. Features like AMD true audio, mantle and the list go on... The reality is no support from Nvidia means no future support in games...
     
  6. no_1_dave

    no_1_dave Master Guru

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    So AMD need to sacrifice image quality now to keep up with the competition... Then they're selling it as a "feature".

    Interesting
     
  7. arakisb

    arakisb Member

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    that sucks
     
  8. Exascale

    Exascale Banned

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    Where are the image quality comparisons youre looking at to make that conclusion?
     
  9. fantaskarsef

    fantaskarsef Ancient Guru

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    I guess it will be interesting to see if that new Futuremark scene Serra will show a major gap between AMD cards and Nvidia cards.
     
  10. Exascale

    Exascale Banned

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    The AMD of today is no longer the AMD of the last few years. Epyc, Threadripper and Ryzen are proof of that.

    The fact that Vega has built in Infinity Fabric, NVMe, 49bit virtual addressing and HBCC also means that AMD is getting serious about AI and HPC.

    If people adopt Vega and its successors like they are Ryzen then developers will have an incentive to support it. I mean, AMD did come out with that whole x86-64 thing too.
     

  11. no_1_dave

    no_1_dave Master Guru

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    I read the article
     
  12. Ryu5uzaku

    Ryu5uzaku Ancient Guru

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    Considering consoles apart from Xbox One X support fp16 it should be fine. Nvidia sure is limiting their proper fp16 currently to their Tesla products but that could change.
     
  13. Angel_Rex

    Angel_Rex New Member

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    Ram?

    Didn't they use c14 3200mhz ram to test? Or did I miss read?
     
  14. user1

    user1 Ancient Guru

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    Alot of things do not require 32bit precision, infact doing them in 32bit precision is a waste of energy, and now you not only save power by using half (fp16) precision , you get double the performance.

    There is a reason the GP100 and GV100 nvidia chips have this same feature (double rate fp16)
     
  15. edilsonj

    edilsonj Active Member

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    I can't get the point here. :stewpid:

    We can use FP16 in minor features that not require FP32. It's so simple to think.
     

  16. chronek

    chronek Member Guru

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    NVidia have FP16 faster that FP32 too, so did not get your point, cause NVidia will benefit it too, but most will benefit games. It is just new technology (not gameworks), it is like mipmaping was one day.
     
  17. -Tj-

    -Tj- Ancient Guru

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  18. no_1_dave

    no_1_dave Master Guru

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    Nvidia reduced image quality back in the day and it didn't go down well.
    AMD have tried it before in some of their drivers and had a lot of complaints.

    Time will tell if selling it as a feature works out any differently
     
  19. Denial

    Denial Ancient Guru

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    The only Nvidia card that has full packed math is GP100. GP104/102/106 have 1/32 support for debugging purposes only.

    This might change a bit with Volta but if the speculation about Vega's power consumption being related to packed math is true, Nvidia may forgo it entirely on it's gaming cards.
     
  20. Ryu5uzaku

    Ryu5uzaku Ancient Guru

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    They do but not in their consumer cards at the moment iirc.
     

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