New AMD low power X86 core, enter the Jaguar

Discussion in 'PC Industry' started by liolio, Aug 28, 2012.

Tags:
  1. AlexV

    AlexV Heteroscedasticitate
    Moderator Veteran

    Joined:
    Mar 15, 2005
    Messages:
    2,533
    Likes Received:
    139
    I think it was mentioned either on TR or by Anand. Sample B3D and I'll make sure your primitive / cycle figures are correct. Eventually:razz:
     
  2. mczak

    Veteran

    Joined:
    Oct 24, 2002
    Messages:
    3,020
    Likes Received:
    115
    Yeah it was on anandtech, specifically mentioned here (given that it was on a slide you could have seen it elsewhere too but I think noone else said so in the text):
    http://www.anandtech.com/show/6976/...wering-xbox-one-playstation-4-kabini-temash/4
    Though there actually seems to be a bug on that slide, it says 64 SP ops / clock, 8 DP adds / clock (making this 1/8 rate which looks plausible), but 4 DP Muls/FMAs per 16 clocks which would make this 1/256 rate, now that would be really glacially slow, for the whole graphic chip 1 dp mul every two clocks :).
    (Though in any case even with 1/16 mul/fma rate if you've got some opencl kernel consisting of mostly DP ops it should run faster on the cpu - after all for SP the cpu can do 4x4 mul+add per cycle whereas gpu is 128x fmas so considering the clock difference the gpu has more than twice the theoretical flops, but the cpu can do 4x2 DP adds and 4x1 DP muls per clock whereas the gpu would be limited to 8 fma / clock which is definitely less (as gpu runs at 1/3 the clock) unless you need the added precision from the FMAs.)

    I'm actually wondering if that 1/4 prim rate is better or worse than what the top-end ARM SoCs have. If I go by some numbers anandtech has published in the past for glbench triangle test and assuming they get somewhere close to their theoretical peak it actually looks like they might also be 1/4 prim / clock but I have never seen official theoretical figures for these chips.
     
    #242 mczak, May 27, 2013
    Last edited by a moderator: May 27, 2013
  3. kalelovil

    Regular

    Joined:
    Sep 8, 2011
    Messages:
    567
    Likes Received:
    102
    Anandtech has a brief article on the 1H 2014 Kabini/Temash successors, Beema and Mullins.
    http://www.anandtech.com/show/7514/amd-2014-mobile-apu-update-beema-and-mullins

    I had previously expected these to be just rebrands of the 2013 dies benefiting from fabrication process maturity, but it turns out they are new SoCs and include new Puma CPU cores as a further evolutionary step over Jaguar and Bobcat.

    AMD are claiming 2x the performance/watt of Kabini/Temash on the same 28nm process (albeit without any explanation of how this is achieved) and supply the following impressive performance numbers:

    [​IMG]
     
  4. entity279

    Veteran Regular Subscriber

    Joined:
    May 12, 2008
    Messages:
    1,293
    Likes Received:
    473
    Location:
    Romania
    Meanwhile I'm still waiting to be actually able to buy a Jaguar CPU for the custom NAS I plan to build:sad:
     
  5. mczak

    Veteran

    Joined:
    Oct 24, 2002
    Messages:
    3,020
    Likes Received:
    115
    My guess is better power management, or more specifically finally a really working Turbo. These "old" Kabini/Temash have a bit lacking turbo functionality (if they have any at all), so they only reach anywhere close to their TDP with both combined (multi) cpu and (especially) gpu load (cpu benchmarks alone never seem to be anywhere close to TDP). Note AMD uses a performance metric of some-benchmark / TDP, not some-benchmark / real power draw for the 2x claim, hence the actual energy efficiency improvement will probably be much lower. Also, it may not be the exact same 28nm process (going for HPM?), which could help somewhat too. In any case these chips might turn out to be quite nice.
     
  6. Thorburn

    Regular

    Joined:
    Oct 8, 2006
    Messages:
    323
    Likes Received:
    19
    Location:
    UK
  7. liolio

    liolio Aquoiboniste
    Legend

    Joined:
    Jun 28, 2005
    Messages:
    5,724
    Likes Received:
    194
    Location:
    Stateless
    MCzak Anandtech has confirmed your guess, improvements comes higher speed and improvement at the SoC level (which I guess is power management).
     
  8. Sxotty

    Legend Veteran

    Joined:
    Dec 11, 2002
    Messages:
    5,256
    Likes Received:
    598
    Location:
    PA USA
    I am pissed at AMD I have been waiting months for their low power stuff to be available to consumers as I wanted to rebuild my car PC, but AMD will never actually get it to the market. (Of course I haven't checked in a couple weeks now but seriously it was months after "release")
     
  9. Alexko

    Veteran Subscriber

    Joined:
    Aug 31, 2009
    Messages:
    4,532
    Likes Received:
    957
    I'm pretty sure AMD would like nothing more. Blame OEMs.
     
  10. Sxotty

    Legend Veteran

    Joined:
    Dec 11, 2002
    Messages:
    5,256
    Likes Received:
    598
    Location:
    PA USA
    How am I supposed to blame OEMs that AMD doesn't have any in the retail channel? Are you talking motherboard makers? That is the only thing I can think of. When I look for kabini all I get is premade netbook kind of things
    http://www.newegg.com/Product/Produ...=BESTMATCH&Description=kabini&N=-1&isNodeId=1

    Anyway I should not be grumpy, but I really though August at the latest they would be available. AMD still has their older integrated models out that I could buy, but nothing of the newer ones. I think Intel will be taking my business quite soon on that front. I was just holding out since AMD had better graphics, but I really probably don't need to.
     
  11. cal_guy

    Newcomer

    Joined:
    Jun 27, 2008
    Messages:
    217
    Likes Received:
    3
    There are things like these out as well

    http://www.newegg.ca/Product/Product.aspx?Item=N82E16813135363
    http://www.newegg.ca/Product/Product.aspx?Item=N82E16813135364
     
  12. Alexko

    Veteran Subscriber

    Joined:
    Aug 31, 2009
    Messages:
    4,532
    Likes Received:
    957
    Kabini is not a socketed chip, you'll only find it in OEM builds or soldered onto motherboards like the ECS model above.
     
  13. AnarchX

    Veteran

    Joined:
    Apr 19, 2007
    Messages:
    1,559
    Likes Received:
    34
    There is FS1b, which is a pin-socket for Kabini. The latestet roadmap has this version on it.
    It was wished by vendors, since soldered versions are a higher inventory risk.
     
  14. Alexko

    Veteran Subscriber

    Joined:
    Aug 31, 2009
    Messages:
    4,532
    Likes Received:
    957
    Do FS1b motherboards actually exist outside of the OEM channel?
     
  15. Blazkowicz

    Legend Veteran

    Joined:
    Dec 24, 2004
    Messages:
    5,607
    Likes Received:
    256
  16. Alexko

    Veteran Subscriber

    Joined:
    Aug 31, 2009
    Messages:
    4,532
    Likes Received:
    957
    Apparently Beema drops support for FS1b, so I wouldn't expect much more retail availability.

    [​IMG]

    There's always the option of a low-power Richland or Kaveri.
     
  17. Sxotty

    Legend Veteran

    Joined:
    Dec 11, 2002
    Messages:
    5,256
    Likes Received:
    598
    Location:
    PA USA
    Yeah it has been frustrating. I would think they might want to get in on the rasberry pi sort of market with a setup like this. But obviously that is not the case. Intel has been doing so a little.
     
  18. I.S.T.

    Veteran

    Joined:
    Feb 21, 2004
    Messages:
    3,174
    Likes Received:
    389
    Car PC?
     
  19. Thorburn

    Regular

    Joined:
    Oct 8, 2006
    Messages:
    323
    Likes Received:
    19
    Location:
    UK
    I'm guessing all the Kabini chips are BGA, so he's right it's down to the OEMs to build products around them. If they don't believe they can make money off them then they won't, simple.
     
  20. Blazkowicz

    Legend Veteran

    Joined:
    Dec 24, 2004
    Messages:
    5,607
    Likes Received:
    256
    There is a socketed Kabini, it appears on the current AMD roadmap and it is FS1b µPGA. I suppose it's about convenience for a few OEMs, and would be of little use to consumers like MXM graphics cards are.
     
Loading...

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...