AMD: Pirate Islands (R* 3** series) Speculation/Rumor Thread

Discussion in 'Architecture and Products' started by iMacmatician, Apr 10, 2014.

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  1. trinibwoy

    trinibwoy Meh
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    Wow Pitcairn is over 3 years old and is still showing up in "new" products. That's the all time record right?
     
  2. Rikimaru

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    ATi R300 was 3 years too I think.
     
  3. Ryan Smith

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    For AMD or overall? The overall record is held by G92, at least if you count the 65nm and 55nm versions as a single product.
     
  4. kalelovil

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    The GPU-Z screenshot is probably from a factory overclocked model (e.g. a rebrand of http://www.powercolor.com/au/products_features.asp?id=490).
    There are already factory overclocked 1150mhz R7 370s and 1180mhz R9 270Xs. The stock clock jump is probably more conservative.
     
  5. Alexko

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    Interesting, thanks. I wonder why AMD keeps making so many ASICs at TSMC when they have so much trouble fulfilling their wafer supply agreement with GloFo.
     
  6. Grall

    Grall Invisible Member
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    They probably don't have the money and/or engineering resources to spare to port any of their existing designs to GloFo's process.
     
  7. Alexko

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    I suppose that's possible, but Kaveri and Carrizo are manufactured by GloFo, so GCN is already ported to GloFo's process, with the possible exception of some minor blocks that may be absent from APUs—the memory controllers in those, for example, are probably slightly different.
     
  8. Putas

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    Guru3d in their reviews says Antigua is manufactered by GloFo, is it possible?
     
  9. ToTTenTranz

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    The G92 was introduced in October 2007 with the 8800GT 512MB and by October 2010 nVidia's whole line-up had been replaced by Fermi cards (mobile included). That's about 3 years of service.
    Pitcairn was introduced in March 2012 and 3.5 years later, in August 2015, there are still new cards being introduced with it.

    Pitcairn has already surpassed G92's record and it'll probably do so for an entire year or more. And it didn't go through a die shrink.

    1180MHz is just a 11.8% overclock compared to the 3.5 year-old 7870 GHz Edition.
    Pitcairn is about 1/3rd the size of Fiji. You expected both GPUs to clock the same?

    And you know someone's been doing a terrible job when a 3.5 year-old product fills a "where the money is" category.
     
  10. dbz

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    You'll probably find that Cape Verde puts up similar longevity (Caicos also - intro'd Jan. 2011 (HD 64x0M) and Feb. 2011 (HD 6450), EoL'd May 2015 with the arrival of Oland) - started life with the HD 7750 (Feb. 2012), and continues with the newly launched R9 M370X.
     
  11. 3dilettante

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    Perhaps there isn't a good business case for a lateral node move at the tail end of a generation just to build the same product.
    That there are segments that have stagnated this way may point out that refreshing them is where the money isn't.
     
  12. Ryan Smith

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    To my knowledge, no AMD GPUs are made at GloFo. I don't have an Antigua, but since it's just Tonga, it would be TSMC.
     
  13. trinibwoy

    trinibwoy Meh
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    Overall. I wouldn't put G92 in the same boat. Has anything changed at all from the original Pitcairn silicon?

    Not that there's anything necessarily wrong with that. It's obviously still doing well as it makes way down the pricing ladder.
     
  14. Dave Baumann

    Dave Baumann Gamerscore Wh...
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    I'll refer you to public/SEC filings:

    http://www.amd.com/en-us/press-releases/Pages/amd-amends-wafer-2014apr1.aspx

    Also note the Carrizo materials pointing to using a more "GPU oriented" process path for increased density.

    http://www.anandtech.com/show/9319/...leap-of-efficiency-and-architecture-updates/3
     
    #2674 Dave Baumann, Jul 29, 2015
    Last edited: Jul 29, 2015
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  15. gamervivek

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    m370x is not cape verde, it's at least GCN2.
     
  16. Dr Evil

    Dr Evil Anas platyrhynchos
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    18% actually and that's not an insignificant increase. I do wonder how close to the ceiling that clock rate is though. I haven't really looked into Pitcairn overclocking.
     
  17. Grall

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    You might well be very right of course, I'm not knowledgeable about such things, but if you have contract obligations there might be penalties associated with not fulfilling them... Maybe smaller than the cost of moving product to GloFo tho, what do I know? :)

    Also, if GF wants future AMD contracts, maybe it's not good business sense penalising them...? *shrug* :lol:
     
  18. Alexko

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  19. tunafish

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    According to AMD's "Gaming Scientist", the process used at TSMC was changed.

    T = 17:51 or so.
     
  20. Kaotik

    Kaotik Drunk Member
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    And we still haven't gotten to the bottom of "is Pitcairn and Curacao (and whatever the version was called in 300-series) the same thing - and if so, why is OpenCL 2.0 listed as supported on Curacao but not Pitcairn, while AMD says GCN 1.1 is required
     
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