NVIDIA Maxwell Speculation Thread

Discussion in 'Architecture and Products' started by Arun, Feb 9, 2011.

Tags:
  1. zorg

    Newcomer

    Joined:
    Aug 1, 2012
    Messages:
    32
    Likes Received:
    0
    Location:
    Sweden
    They only support 8 and not 64. I think 8 is not enough for a compute oriented future.
     
  2. constant

    Newcomer

    Joined:
    Feb 9, 2014
    Messages:
    22
    Likes Received:
    8
    You cannot share L1 without sharing SMEM (or local memory in your tongue) aswell. They are the same reconfigurable cache attached to the same set of load store units on the chip.

    It is true however that each sub-unit would need their own set of LDS.
     
  3. CarstenS

    Veteran Subscriber

    Joined:
    May 31, 2002
    Messages:
    4,798
    Likes Received:
    2,056
    Location:
    Germany
    There is a lot more in Kepler's SMX tied in a fixed manner than one could think from glacing over the usual block diagrams.

    WRT to local memory/shared memory an L1 think about this: Schedulers own parts of the register files in Kepler as well as specific functional units. Now there's 64 kiB RAM, configurable. What's the difference between L1 and shared mem globally speaking? Only for Shared Memory do you allow other warps/schedulers/sets of functional units to access this part of the memory. Since this needs to be set beforehand, you can software-configure it. I see absolutey no problem in what Novum proposes - in fact I think that this is the case with Kepler as well already.
     
  4. rpg.314

    Veteran

    Joined:
    Jul 21, 2008
    Messages:
    4,298
    Likes Received:
    0
    Location:
    /
    It's a disappointment if it doesn't come with more SM/ALU.
     
  5. ninelven

    Veteran

    Joined:
    Dec 27, 2002
    Messages:
    1,702
    Likes Received:
    117
    Well, worst case scenario should be a 50% increase...
     
  6. Novum

    Regular

    Joined:
    Jun 28, 2006
    Messages:
    335
    Likes Received:
    8
    Location:
    Germany
    That's an implementation detail which can change.
     
  7. DSC

    DSC
    Banned

    Joined:
    Jul 12, 2003
    Messages:
    689
    Likes Received:
    3
  8. AnarchX

    Veteran

    Joined:
    Apr 19, 2007
    Messages:
    1,559
    Likes Received:
    34
  9. iMacmatician

    Regular

    Joined:
    Jul 24, 2010
    Messages:
    773
    Likes Received:
    200
  10. AnarchX

    Veteran

    Joined:
    Apr 19, 2007
    Messages:
    1,559
    Likes Received:
    34
    3 SMM and 64-Bit DDR3 (maybe also GDDR5), according to some Asian leaks.

    To sad, there is probably no GM106/105 (1280CC, 256-Bit), which could be a nice ~250mm²/$250 solution.
     
  11. Picao84

    Veteran Regular

    Joined:
    Feb 15, 2010
    Messages:
    1,555
    Likes Received:
    699
    So this time around the x50M GPU is GTX instead of simply GT. Makes sense, depending how much they clock GM107 inside a notebook...
     
  12. liolio

    liolio Aquoiboniste
    Legend

    Joined:
    Jun 28, 2005
    Messages:
    5,723
    Likes Received:
    193
    Location:
    Stateless
    When should the reviews be out?
    I'm really curious on the impact that big cache could have on performances :)
     
  13. Picao84

    Veteran Regular

    Joined:
    Feb 15, 2010
    Messages:
    1,555
    Likes Received:
    699
    Supposedly next Tuesday, 18th February.
     
  14. DSC

    DSC
    Banned

    Joined:
    Jul 12, 2003
    Messages:
    689
    Likes Received:
    3
    Nvidia already has GM20x in their drivers, they're just waiting for TSMC to start production. Since all Nvidia architectures are now designed for mobile first & power efficiency and going bottom to top with GM107 first release, GM206 should be the next release, followed by GM204 and finally GM200. There's no point in making 28nm GM106 etc.
     
  15. iMacmatician

    Regular

    Joined:
    Jul 24, 2010
    Messages:
    773
    Likes Received:
    200
    I must have been unclear, I was wondering if the GM108 shader count was also fixed.
     
  16. tviceman

    Newcomer

    Joined:
    Mar 6, 2012
    Messages:
    191
    Likes Received:
    0
    Nvidia brought GK107 to market (in notebooks) before GK104. GK104 came next, followed by GK106. So it's entirely plausible GM104/204 will come next.

    If 20nm is still a ways off, or if Nvidia is planning to just skip 20nm and go straight to finfets, then we will surely get GM104/204 on 28nm. Considering the perf/watt and perf/mm^2 improvements GM107 has over GK107, the successor to GK104 could happily exist on 28nm if production costs make sense.
     
  17. Ailuros

    Ailuros Epsilon plus three
    Legend Subscriber

    Joined:
    Feb 7, 2002
    Messages:
    9,420
    Likes Received:
    179
    Location:
    Chania
    20SoC should be feasable starting from H2 this year, however I've no clue how costs would look like there. TSMC started mass production for 20SoC recently didn't they? They plan to start with 16 FF mass production in early 2015; what makes anyone think that 16 FF will be at the same time affordable in early 2015?

    Yes GK107 was in OEMs hands in December 2012 and GK104 would had appeared earlier if they wouldn't had decided to give it a minor boost to go head to head with Tahiti.

    Now the Maxwell family is a couple of months later and while GK110 had its final tape out if memory serves well in early March unless I've missed something the newest succeeding egg hasn't hatched yet.
     
  18. Blazkowicz

    Legend Veteran

    Joined:
    Dec 24, 2004
    Messages:
    5,607
    Likes Received:
    256
    I agree that GM204 comes next, this way nvidia may get the "gaming flagship" out and still sell the GK104 desktop cards below it.
    Laptops can use the GM204, low-clocked and cut down if need be, esp. in "gaming laptops". GM206 laptops will come later anyway.
     
  19. xDxD

    Regular

    Joined:
    Jun 7, 2010
    Messages:
    412
    Likes Received:
    1
  20. Ailuros

    Ailuros Epsilon plus three
    Legend Subscriber

    Joined:
    Feb 7, 2002
    Messages:
    9,420
    Likes Received:
    179
    Location:
    Chania
    When you're using such a big range it's hard to not hit at least a couple of them :lol:

    Not really ;)
     
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...