Results 1 to 7 of 7

Thread: Nvidia evaluating multi chip module GPU designs

  1. #1
    HEXUS.admin
    Join Date
    Apr 2005
    Posts
    31,709
    Thanks
    0
    Thanked
    2,073 times in 719 posts

    Nvidia evaluating multi chip module GPU designs

    Green team reckons that MCM architecture can counteract Moore's Law slowdown.
    Read more.

  2. #2
    AKA Chrispynutt Gunbuster's Avatar
    Join Date
    Sep 2003
    Location
    Fife
    Posts
    1,627
    Thanks
    69
    Thanked
    68 times in 56 posts
    • Gunbuster's system
      • Motherboard:
      • Aorus AX370 Gaming K7
      • CPU:
      • Ryzen 7 1700x + Scythe Kotetsu MK I
      • Memory:
      • 32GB: 4x 8GB HyperX Fury 2400mhz CL15 DDR4
      • Storage:
      • 2x Sandisk Ultra II 960GB, 1x Crucial MX100 512GB SSD
      • Graphics card(s):
      • MSI Gaming GTX970
      • PSU:
      • EVGA Supernova G2 750w
      • Case:
      • Cougar Panzer S
      • Operating System:
      • Windows 7 Home Premium
      • Monitor(s):
      • DGM IPS-2701WPH 27" 1440p IPS Monitor
      • Internet:
      • Aquiss Fibre

    Re: Nvidia evaluating multi chip module GPU designs

    So kind of like Ryzen and Infinity Fabric. Looks interesting.

  3. #3
    Registered+
    Join Date
    Dec 2014
    Posts
    51
    Thanks
    0
    Thanked
    0 times in 0 posts

    Re: Nvidia evaluating multi chip module GPU designs

    already happened once. Hope this time will end much better:
    http://www.tomshardware.com/reviews/gigabyte,954-2.html

  4. #4
    Senior Member
    Join Date
    May 2014
    Posts
    2,385
    Thanks
    181
    Thanked
    304 times in 221 posts

    Re: Nvidia evaluating multi chip module GPU designs

    Quote Originally Posted by Gunbuster View Post
    So kind of like Ryzen and Infinity Fabric. Looks interesting.
    That is exactly what AMD are hoping to achieve with Infinity fabric, as well as using it for better CPU/GPU interconnects.

  5. #5
    Member
    Join Date
    Jul 2013
    Posts
    126
    Thanks
    0
    Thanked
    2 times in 2 posts

    Re: Nvidia evaluating multi chip module GPU designs

    Quote Originally Posted by Goodman2576 View Post
    already happened once. Hope this time will end much better:
    http://www.tomshardware.com/reviews/gigabyte,954-2.html
    It's a bit different to that, it's more akin to how threadripper uses 4 CPUs for one big SoC than say the GTX295 which has two different SoCs.

  6. #6
    AKA Chrispynutt Gunbuster's Avatar
    Join Date
    Sep 2003
    Location
    Fife
    Posts
    1,627
    Thanks
    69
    Thanked
    68 times in 56 posts
    • Gunbuster's system
      • Motherboard:
      • Aorus AX370 Gaming K7
      • CPU:
      • Ryzen 7 1700x + Scythe Kotetsu MK I
      • Memory:
      • 32GB: 4x 8GB HyperX Fury 2400mhz CL15 DDR4
      • Storage:
      • 2x Sandisk Ultra II 960GB, 1x Crucial MX100 512GB SSD
      • Graphics card(s):
      • MSI Gaming GTX970
      • PSU:
      • EVGA Supernova G2 750w
      • Case:
      • Cougar Panzer S
      • Operating System:
      • Windows 7 Home Premium
      • Monitor(s):
      • DGM IPS-2701WPH 27" 1440p IPS Monitor
      • Internet:
      • Aquiss Fibre

    Re: Nvidia evaluating multi chip module GPU designs

    Yeah basically IF can be internal, ie between the two 4core blocks in Ryzen or external say between 2 on Threadripper, 4 on Epyc or between the sockets in a dual Epyc board.
    Nvidia's GPUs are already pretty modular internally, by making the connection more flexible between the clusters would allow for easier to scale architecures. ie, a 2080 could just be two 2060s on one chip.

    FYI my language is muddled as I am a layman in these kind of things.

  7. #7
    Not a good person scaryjim's Avatar
    Join Date
    Jan 2009
    Location
    Gateshead
    Posts
    15,196
    Thanks
    1,231
    Thanked
    2,291 times in 1,874 posts
    • scaryjim's system
      • Motherboard:
      • Dell Inspiron
      • CPU:
      • Core i5 8250U
      • Memory:
      • 2x 4GB DDR4 2666
      • Storage:
      • 128GB M.2 SSD + 1TB HDD
      • Graphics card(s):
      • Radeon R5 230
      • PSU:
      • Battery/Dell brick
      • Case:
      • Dell Inspiron 5570
      • Operating System:
      • Windows 10
      • Monitor(s):
      • 15" 1080p laptop panel

    Re: Nvidia evaluating multi chip module GPU designs

    Quote Originally Posted by HW90 View Post
    It's a bit different to that, it's more akin to how threadripper uses 4 CPUs for one big SoC than say the GTX295 which has two different SoCs.
    Threadripper uses 2 dies EPYC uses 4.

    And if you read the paper this is actually a little different. Threadripper/EPYC are full CPU dies tied together on a fabric. The proposed MCM GPU is not full GPU dies. The slices contain shaders / caches / memory channels, but the whole thing requires a separate control block - a distinct and separate die - to handle thread dispatch etc. Also the MCM approach doesn't net significant benefits over an optimised multi-GPU setup until you've gone through some very stringent optiimsation processes, and those optimisations only work for about half of all GPU workloads, and actually hurt performance in some (we've already discussed this a week ago in http://forums.hexus.net/cpus/371038-...ml#post3827056).

    Managing the extreme degrees of parallelism in a GPU makes it far more complicated to optimise multi-GPU or even multi-die shaders slices than it does with multiple CPUs. That's why we've had MCM CPUs for a long time, but not MCM GPUs....

  8. Received thanks from:

    Gunbuster (04-07-2017)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •