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ATI's next gen GPU in next half of 2010

Discussion in 'AMD / ATI' started by _33, Mar 30, 2010.

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  1. Super XP

    Super XP

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    You hit the nail on the head, Intel has the money and R&D to do anything they want with a GPU based design. Personally I think they do have a discrete GPU on paper, in design phase and will most likely get released sometime in 2012. It's going to be a competitors nightmare IMO :D
  2. wahdangun

    wahdangun New Member

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    it's in GTX 480(just look wizz review), and btw GT300 was meant to be OEM only and it's just a bunch of renamed chip so nothing special about it
    Last edited: Apr 5, 2010
  3. KainXS

    KainXS

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    ???

    from what I remember, the GT300 series is what the GF100 was supposed to fall in(or what we originally speculated it would), nvidia changed from GT300 to GT400 series to more than likely prevent confusion with the already rebranded names in the GT300 series(currently all OEM)

    but bit-tech also says that the GTX480 is based on a MIMD design(maybe they're wrong???)

    http://www.bit-tech.net/hardware/2010/03/27/nvidia-geforce-gtx-480-1-5gb-review/3
  4. eidairaman1

    eidairaman1

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    TBH I don't think R6800 is going to be out anytime soon.
  5. _33

    _33 New Member

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    Well how come there are no mentions of MIMD in any Nvidia white paper anywhere ? I'd suppose Nvidia would be the first to trumpet about their MIMD shaders? Since Nvidia don't advertise them, then I suppose their shaders are SIMD or some variant (SIMT).

    Proof of what I'm saying is at Nvidia's website. There is no claim of MIMD shaders or MIMD CUDA cores.
  6. overclocking101

    overclocking101

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    probably end of this year early next
  7. erocker

    erocker Super Moderator Staff Member

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    Yes Fermi is "MIMD" which stands for Multiple Instruction Multiple Data. To put it simply MIMD kind of works in the same way a dual core CPU works meaning it can work on "task A" and "task B" at the same time. It was necessary to implement for Fermi to do Tessellation well. I read all of this when Fermi reviews were released....

    Found it (ignore my amateur explanation) : http://www.bit-tech.net/hardware/2010/03/27/nvidia-geforce-gtx-480-1-5gb-review/3
  8. _33

    _33 New Member

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    bit-tech is wrong. Nvidia was supposed to push for MIMD shaders, but they never did so far. This was a feature that was supposed to go with the never released GT300 (the other fermi).
    http://www.brightsideofnews.com/new...00-specifications-revealed---its-a-cgpu!.aspx
  9. erocker

    erocker Super Moderator Staff Member

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    Well, I believe them over a "FUD" site. I'll have to ask someone who really knows.. I don't see any information to the contrary.
    Last edited: Apr 5, 2010
  10. _33

    _33 New Member

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    This is why many believe there will be a fermi 2 (which should be what the GT300 was, with the MIMD CUDA cores).

    Check this out, if the GTX480 had MIMD CUDA cores, it would literally crush the HD5870, without a doubt, in shader performance. But, it is not the case. 3D Mark scores would be owned grandly by the GTX480 if that would be the case, and it would be the HD5870 killer that everyone would of hoped for.

    Just look at the "shader math test" or the "POM shader test" over here: http://ixbtlabs.com/articles3/video/gf100-2-p9.html
    Last edited: Apr 6, 2010
  11. eidairaman1

    eidairaman1

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    Delusions of Grandeur :nutkick:
  12. erocker

    erocker Super Moderator Staff Member

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    Thing is, I read that tessellation would be broken without it in the design. Nvidia markets using marketing speak like "CUDA Cores". They also don't mention if it's SIMD, MIMD or anything else. Link to whitepapers?
  13. KainXS

    KainXS

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    I know they don't the only thing they mention in the whitepapers about MIMD or SIMD is about the G80 being SIMD but not about the GF100 in general, but I have seen nothing that points to it being SIMD, not even rumors,
  14. phanbuey

    phanbuey

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    i have always heard that gf100 was mimd... but now that i think about it, those were the pre-rumors.
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  15. mastrdrver

    mastrdrver

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    You're right on that point. Problem is that this isn't Intel's first try.....or second since there was suppose to be a successor to the i740 but sales were so dismal that it was canned. Infact, how many years have they even had an IGP and even that has suffered terribly from drivers.

    I think one of the things going against Larrabee is the transistor density of GPUs. Bloomfield has very similar transistor and die size to the RV770......on an smaller process. Westmere is 240mm2 and 1.17B transistors which ATI does 1.04B in 170mm2 with Juniper.

    Personally I think Intel would have a better chance at this if they would just start down at the bottom by making add in OEM cards. It would give them good experience with making GPU type chips and learning to make good drivers.

    A lot of money and R&D doesn't do you any good when you don't even know how to make a GPU that even competes on the current OEM market. After reading all the articles on Larrabee everyone is talk about how Intel is trying to make a GPU.....out of a lot of CPUs. I think I'm pretty safe in saying that no one has ever done that with a GPU. Think there might be a reason? How many times has either ATI or nVidia missed the mark when trying to do something new and these companies know how to make GPUs.
  16. _33

    _33 New Member

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    The reason why tessellation is fast on the GTX480 is not because they implemented MIMD CUDA cores, but because Nvidia rewrote the way they handle geometry. Here's a quote from the Nvidia GF100 white paper (page 13):
    http://www.nvidia.com/object/IO_86775.html

    Oh, and on P.16 they talk about the CUDA cores.
    Last edited: Apr 6, 2010
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  17. nt300

    nt300

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    Hope this Southern Island performs well enough to strip gtx 480 bare. ;) Hav you seen this and is truth or not? He speek like he works for ATI :eek:

  18. yogurt_21

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    those specs look entirely made up, 128 rop's? why?
  19. TVman

    TVman New Member

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    128rop`s...... why not? more rops = better performance :)
  20. wahdangun

    wahdangun New Member

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    ups it's really still SMID look at tomshardware :

    "With GT200, a Streaming Multiprocessor was made up of one 8-way SIMD units, two special function units, and one double-precision unit. With GF100, they now have two 16-way SIMD units and four special function units."

    source: http://www.tomshardware.com/reviews/geforce-gtx-480,2585-18.html


    so it's just a very powerful SMD
    Last edited: Apr 6, 2010
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  21. wiak

    wiak

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    well HD 4870 had 800 shaders, HD 5870 has 1600 shaders and so on :p
  22. erocker

    erocker Super Moderator Staff Member

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    I'm sorry to say, no. I can confidently tell you that no one who works for ATi would make any post like that on any internet forum. Absolutely ridiculous.
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  23. nt300

    nt300

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    Question the ATI Boy that said it. I just post what I found. I don't know, for better FPS in higher res?
  24. erocker

    erocker Super Moderator Staff Member

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    Can you please not bother posting other people's posts from other forums? It's unnecessary and spreads rumor which is against this forums guidelines. Thanks. :)
  25. nt300

    nt300

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    Woops didn't now that :)

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