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. lanek

    Veteran

    Joined:
    Mar 7, 2012
    Messages:
    2,469
    Likes Received:
    315
    Location:
    Switzerland
    Is Nvidia will continue this trend ? I think the DP question was only for Maxwell, so next arch will certainly see DP performance coming back.

    This decision of remove completely DP and other computing stuff, was only due to the problem both AMD and nvidia have encounter, when 22nm have been abandonned by TSMC. They have need to make some choice, and cut where they can.
     
    #201 lanek, Nov 1, 2015
    Last edited: Nov 1, 2015
  2. Samwell

    Newcomer

    Joined:
    Dec 23, 2011
    Messages:
    112
    Likes Received:
    129
    I don't get your point. AMD has done the same as Nvidia. Maxwell is low DP, but Fiji is also low DP. So where is the difference?
    Both will go with high DP at the Top-End and lower DP in the lower Tiers as it's not needed there.
     
  3. Kaotik

    Kaotik Drunk Member
    Legend

    Joined:
    Apr 16, 2003
    Messages:
    8,213
    Likes Received:
    1,883
    Location:
    Finland
    Yes, they will, they've already confirmed it.
     
  4. Silent_Buddha

    Legend

    Joined:
    Mar 13, 2007
    Messages:
    16,235
    Likes Received:
    5,182
    So it'll be back to a more level-ish playing field for the next node. With both focusing on DP. AMD were competing just fine WRT performance/power (and perf/mm^2) up until Nvidia surprised them by ditching DP performance.

    Of course, AMD's personnel have been gutted (relatively speaking) since then, so it remains to be seen if they can challenge Nvidia on the upcoming node transition.

    Regards,
    SB
     
  5. silent_guy

    Veteran Subscriber

    Joined:
    Mar 7, 2006
    Messages:
    3,754
    Likes Received:
    1,379
    I don't think DP explains the difference the perf/W increase of Maxwell at all. There are architectural changes that are a much more logical explanation. (And it's not as if Fiji is a DP screamer either.) The lack of DP on gm200 can be justified by the fact that this was the only way to be sufficiently faster than gm204 without going far beyond 600mm2.

    That said: I don't think we'll be able to do an apples to apples comparison because I expect AMD to pay more attention to perf/W for 16nm than they did for 28nm.

    So if, for 16nm, thing are closer in terms of perf/W between both architectures, those claiming that it's due to DP can still claim to be right...
     
    pharma and RecessionCone like this.
  6. Alexko

    Veteran Subscriber

    Joined:
    Aug 31, 2009
    Messages:
    4,496
    Likes Received:
    910
    DP probably plays a role (otherwise, why remove it?) but I think it's quite clearly very minor, otherwise GCN incarnations with slow DP would be more efficient than they are.
     
    pharma and RecessionCone like this.
  7. silent_guy

    Veteran Subscriber

    Joined:
    Mar 7, 2006
    Messages:
    3,754
    Likes Received:
    1,379
    Like I wrote: you remove it because you're limited by die size, and the desire to have a top dog that has at least 50% more resources than the second in rank (though Fiji didn't pass even that bar.)
     
  8. Alexko

    Veteran Subscriber

    Joined:
    Aug 31, 2009
    Messages:
    4,496
    Likes Received:
    910
    True but it's also usually absent from mid-range chips.
     
  9. Ryan Smith

    Regular

    Joined:
    Mar 26, 2010
    Messages:
    611
    Likes Received:
    1,052
    Location:
    PCIe x16_1
    Since AMD has all of the subtlety of a boot to the head, let the speculation on Polaris begin.

    "Starry skies in Sonoma next week. Should have an excellent view of Polaris"

    "Polaris is 2.5 times brighter today than when Ptolemy observed it in 169 A.D"

    https://twitter.com/GChip/status/669637153748484096
     
  10. Newguy

    Regular Newcomer

    Joined:
    Nov 10, 2014
    Messages:
    256
    Likes Received:
    112
    2.5x the performance or perf/w of the Fury X confirmed.
     
    Grall likes this.
  11. Silent_Buddha

    Legend

    Joined:
    Mar 13, 2007
    Messages:
    16,235
    Likes Received:
    5,182
    Let's hope that it's that and not that it's going to take 1,847 years until it is released. :p

    Regards,
    SB
     
    homerdog, Malo, TheAlSpark and 2 others like this.
  12. Alexko

    Veteran Subscriber

    Joined:
    Aug 31, 2009
    Messages:
    4,496
    Likes Received:
    910
    Is there some sort of AMD event in Sonoma next week? I haven't heard of anything.
     
  13. Grall

    Grall Invisible Member
    Legend

    Joined:
    Apr 14, 2002
    Messages:
    10,801
    Likes Received:
    2,172
    Location:
    La-la land
    Well f--k me; the very WEEK I buy/transition to two 390Xes, the rumors start flying about next gen! :lol:
     
  14. gkar1

    Regular

    Joined:
    Jul 20, 2002
    Messages:
    614
    Likes Received:
    7
    This is altogether odd, we know Ptolemy died in 168A.D. so he never even saw Polaris and the star was actually discovered in the late 18th century by Herschel.

    It's probably a reference to the dual Fiji card cause the case can be made for the dual card to be 2.5 times faster if you compare it to the Nano
     
    #214 gkar1, Nov 26, 2015
    Last edited: Nov 26, 2015
    Razor1 likes this.
  15. TheAlSpark

    TheAlSpark Moderator
    Moderator Legend

    Joined:
    Feb 29, 2004
    Messages:
    20,792
    Likes Received:
    5,879
    Location:
    ಠ_ಠ
    a) $169
    b) 169mm^2
    c) 169TFLOPs
    d) 169 man years R&D etc
    e) 16.9nm
    f) 16:9
    g) 169 sales projection
    h) 16 September 2016
     
    Kej, iMacmatician, Grall and 2 others like this.
  16. Voxilla

    Regular

    Joined:
    Jun 23, 2007
    Messages:
    716
    Likes Received:
    283

    It's still pretty amazing that AMD manages 2.5 TFlop/s DP with Haiti, about twice Nvidia top end Tesla.
    They have 1/2 the single precision rate!
    https://www.amd.com/Documents/firepro-s9150-datasheet.pdf
     
  17. DieH@rd

    Legend Veteran

    Joined:
    Sep 20, 2006
    Messages:
    6,132
    Likes Received:
    2,060
    I would like 2.5x perf performance of the R9 Nano. :D
     
  18. pharma

    Veteran Regular

    Joined:
    Mar 29, 2004
    Messages:
    2,968
    Likes Received:
    1,652
    I think correct Tesla numbers are:
    .
    http://www.nvidia.com/object/why-choose-tesla.html
     
  19. Grall

    Grall Invisible Member
    Legend

    Joined:
    Apr 14, 2002
    Messages:
    10,801
    Likes Received:
    2,172
    Location:
    La-la land
    I'm all for this one!
    ...Excuse me, I need to be alone for a while with this tube of hand lotion... :p
     
    Lightman and TheAlSpark like this.
  20. Ryan Smith

    Regular

    Joined:
    Mar 26, 2010
    Messages:
    611
    Likes Received:
    1,052
    Location:
    PCIe x16_1
    That's entirely possible since the card hasn't launched yet. It's a new codename, so I'm just spitballing here on which thread to put it in. (Though 2.5x Nano would be a really odd comparison)
     
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...