AMD: Speculation, Rumors, and Discussion (Archive)

Discussion in 'Architecture and Products' started by iMacmatician, Mar 30, 2015.

Thread Status:
Not open for further replies.
  1. iMacmatician

    Regular

    Joined:
    Jul 24, 2010
    Messages:
    759
    Likes Received:
    198
    AMD has presented a GPU roadmap up to 2020 at the PC Cluster Consortium (from news.mynavi.jp).

    [​IMG]

    According to WCCFTech, the two-year cycle is specifically regarding APUs, and discrete GPUs will be updated more frequently.

    [​IMG]

    The HPC APU scheduled for 2017 may have a TDP of up to 200-300 W.

    Is it too much to hope for a consumer variant of that APU?
     
    Razor1 likes this.
  2. 3dilettante

    Legend Alpha

    Joined:
    Sep 15, 2003
    Messages:
    8,004
    Likes Received:
    2,509
    Location:
    Well within 3d
    One oddity is that FirePro encompasses an APU and what used to be called FireStream.
    It still seems to me that some level of CPU integration would be helpful for that line, so would this be considered a split?

    APUs tend to take a bit longer to catch up on the GPU side, and until AMD's CPU advancement cratered the same was true there. Would the APU that comes after the HPC APU be the stripped-down consumer variant?

    In that scenario, the HPC APU could be a pathfinder for the lines above and below it in the chart.
     
  3. moozoo

    Newcomer

    Joined:
    Jul 23, 2010
    Messages:
    108
    Likes Received:
    1
    >Is it too much to hope for a consumer variant of that APU?

    Hope so!
    Now that Intel isn't implementing OpenCL double precision for their IGPs (despite having the hardware...)
     
  4. pTmdfx

    Newcomer

    Joined:
    May 27, 2014
    Messages:
    246
    Likes Received:
    109
    If there is really one, logically speaking AMD would sell it to wherever makes sense in profits. In other words, I don't see why AMD wouldn't sell consumer variants to amortize the cost with a larger base.
     
  5. pharma

    Veteran Regular

    Joined:
    Mar 29, 2004
    Messages:
    2,696
    Likes Received:
    1,433
    AMD prepping Greenland Graphics for 2016



    http://www.guru3d.com/news-story/amd-prepping-greenland-gpu-for-2016.html
     
  6. DmitryKo

    Regular

    Joined:
    Feb 26, 2002
    Messages:
    607
    Likes Received:
    411
    Location:
    55°38′33″ N, 37°28′37″ E
  7. DmitryKo

    Regular

    Joined:
    Feb 26, 2002
    Messages:
    607
    Likes Received:
    411
    Location:
    55°38′33″ N, 37°28′37″ E
    I'd say 3DCenter is being purely speculative.
    They just take die area for 28 nm GCN 1.0 HD7000 series chips (incorrectly naming them "Northern Islands", which was HD6000 series "Terascale2") and try to scale their specs to 14 nm - however they don't seem to understand that process shrink from 28 nm down to 14 nm will quadruple the transistor count on the same die area, not just double it.
    So, meh.
     
  8. 3dilettante

    Legend Alpha

    Joined:
    Sep 15, 2003
    Messages:
    8,004
    Likes Received:
    2,509
    Location:
    Well within 3d
    The foundries are not scaling their interconnect pitch in the 20nm to 16/14nm transition, so the density gains are incremental over the transition to 20.
     
  9. Frenetic Pony

    Regular Newcomer

    Joined:
    Nov 12, 2011
    Messages:
    278
    Likes Received:
    71
    It isn't really quadruple, density doesn't go up that much even though you'd think it would given the name. Mostly because the name is disconnected from most engineering reality and has slowly gotten so over time, so the name is really just for marketing purposes.

    Regardless I would agree it's useless speculation. "Whatever density/feature size you call it" Finfet is certainly going to be featured in a new series of GPUs from both AMD and Nvidia, probably early next year. Samsung, TSMC, and Global Foundries will all have scaled up their capacity of such by then, and gotten rid of enough manufacturing defects, to make huge chips like GPUs possible. But considering AMD has made at least a handful of changes each "generation" (Call it GCN 1.0, 1.1, 1.2, whatever) it's doubtful they'd just let that trend drop next year for no reason. Especially as the "numbers" there are as vague as possible. Especially as AMD's measurements are in its own "stream processors".
     
  10. Alexko

    Veteran Subscriber

    Joined:
    Aug 31, 2009
    Messages:
    4,396
    Likes Received:
    807
    Yeah, I think they're claiming something like a 15% increase in density over 20nm. I guess in practice it will be more for some types of structures, and less for others.
     
  11. Esrever

    Regular Newcomer

    Joined:
    Feb 6, 2013
    Messages:
    587
    Likes Received:
    289
    What would AMD possibly gain from adopting nvidia's naming scheme? Also there is no way a 500+mm^2 gpu would be possible on 14nm by next year.
     
  12. Grall

    Grall Invisible Member
    Legend

    Joined:
    Apr 14, 2002
    Messages:
    10,801
    Likes Received:
    2,170
    Location:
    La-la land
    Why not? [Citation needed]... ;)
     
  13. fehu

    Veteran Regular

    Joined:
    Nov 15, 2006
    Messages:
    1,379
    Likes Received:
    337
    Location:
    Somewhere over the ocean
    "28nm ought to be Enough for Anyone..." u.u
     
  14. iroboto

    iroboto Daft Funk
    Legend Regular Subscriber

    Joined:
    Mar 6, 2014
    Messages:
    6,936
    Likes Received:
    5,220
    My best guess is that he is referring to Dark Silicon?
    Wikipedia:
     
  15. ToTTenTranz

    Legend Veteran Subscriber

    Joined:
    Jul 7, 2008
    Messages:
    9,392
    Likes Received:
    4,034
    What triggers me the most in those rumours is the obvious use of nVidia's nomenclature for performance targets.
    AI100, AI104, AI106 and AI107? Really?

    I would swallow if it was AI-100, then AI-V170, then AI-V140 and AI-V130 :p
     
  16. dobwal

    Veteran

    Joined:
    Oct 26, 2005
    Messages:
    4,923
    Likes Received:
    934
    Dark Silicon doesn't limit the production of a large die.

    He probably indicating that 14nm won't be mature enough to handle 500mm2 chips in 2016
     
    iroboto likes this.
  17. DmitryKo

    Regular

    Joined:
    Feb 26, 2002
    Messages:
    607
    Likes Received:
    411
    Location:
    55°38′33″ N, 37°28′37″ E
    Hell yeah, I thought the whole point of ITRS roadmap is that each new process node is exactly SQRT(2)/2 =0.707 of the previous node, which results either 2x the number of transistors on the same die area, or 1/2 die area for the same number of transistors...

    But even if 29% downscaling does not materialize, ~20% on each node transition still amounts to almost tripling the transistor count on the same die area, or the same number of transistors on 1/3rd of the die area.

    These are mostly microcode changes which do not amount to a great increase of transistor budget.

    In massively multithreaded cores, you don't really need complex superscalar processors that require large execution blocks. You'd rather have several thousand basic processors, just like in GCN.

    So I'd expect they'd rather spend additional transistor budget on bigger/wider caches/TLBs to support more virtual memory for Volume Tiled Resources and new rasterizer features like Conservative Rasterization and Rasterizer Ordered Views, rather than completely revise the shader processor architecture once again. Or maybe use the finer process node to reduce the die area and improve defect rate for better economies of scale.
     
  18. DmitryKo

    Regular

    Joined:
    Feb 26, 2002
    Messages:
    607
    Likes Received:
    411
    Location:
    55°38′33″ N, 37°28′37″ E
    If you read Google translation, they say the exact code names are unknown, so chip nomenclature is completely made-up - and being hard-core Nvidia fanboys, they probably just couldn't resist using Nvidia-like names :p
     
  19. 3dilettante

    Legend Alpha

    Joined:
    Sep 15, 2003
    Messages:
    8,004
    Likes Received:
    2,509
    Location:
    Well within 3d
    ITRS tries to produce a projection of what is coming, based on the accumulated opinion of experts in the field.
    It doesn't have much to do with what marketing puts on the brochures for the manufacturers.
     
  20. Esrever

    Regular Newcomer

    Joined:
    Feb 6, 2013
    Messages:
    587
    Likes Received:
    289
    I don't really have a source but I don't expect 14nm to ramp faster than 28nm did and the time between the first 28nm part (Tahiti) and the first really large chip (GK110) was about a year later. 14nm GPUs will likely launch mid 2016 and a refresh line up with a larger die flag ship can launch in 2017. It makes too much sense given how it worked out like this for 28nm and it will probably be a long time until 10nm node comes online.
     
Loading...
Thread Status:
Not open for further replies.

Share This Page

  • About Us

    Beyond3D has been around for over a decade and prides itself on being the best place on the web for in-depth, technically-driven discussion and analysis of 3D graphics hardware. If you love pixels and transistors, you've come to the right place!

    Beyond3D is proudly published by GPU Tools Ltd.
Loading...