Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 25

Thread: Building a 24 thread cruncher

  1. #11
    Join Date
    Sep 2010
    Location
    Leiden, the Netherlands
    Posts
    4,372
    Quote Originally Posted by Dirk Broer View Post
    As every Tom, Dick and Harry can build his/her 16 thread cruncher nowadays by simply buying an AM4 mobo and a Ryzen 7, let's try for the next level:
    The 24 thread cruncher.

    Goodbye to Socket 940, as there are no mobo's with 12 sockets for ye olde Socket 940.

    Socket F:

    1. Buy a quad Socket F mobo and four six-core Opteron 8400 EE- or HE-series "Istanbul" of 60-79 Watt TDP.


    Socket G34:

    1. Buy a dual Socket G34 mobo and two twelve-core Opteron 6100 HE-series "Magny-Cours" of 85 watt TDP.
    2. Buy a dual Socket G34 mobo and two twelve-core Opteron 6230 HE-series "Interlagos" of 85 watt TDP.
    3. Buy a dual Socket G34 mobo and two twelve-core Opteron 6300-series "Abu Dhabi" of 99-115Watt TDP.

    I've read reports of SETI.USA members that prefer the old K10 core over the Bulldozer for performance reasons, so if you want to give Socket G34 a try, go for the Opteron 6100 HE-series.

    No Socket AM4 here -yet. This might change with Ryzen v2 or Ryzen v3, as Starship is rumoured to have 48 cores.

    Socket TR4

    1. Take any TR4 mobo and buy a 12-core Ryzen Threadripper 1920X. [recommended]

    Advantages of Threadripper against the Bulldozer-based Dual Opterons is the amount of PCIe lanes and the fact that a single CPU system requires less space. Disadvantage is the fact that the quad-channel RAM dictates that you have to buy the RAM in quantities of at least four sticks at a time. This option also gives you the opportunity to make your cruncher a 32-thread cruncher in time though.

    No Socket SP3 either, there are no 12-core EPYCs planned yet.
    Within a few months you can build yourself a 24-thread cruncher using a AM4 board with a Ryzen 9 3900 (65 Watt TDP) or 3900X (105 Watt TDP) CPU...
    Last edited by Dirk Broer; 10-19-2019 at 10:11 PM.


  2. #12
    Join Date
    Apr 2008
    Location
    NTSC
    Posts
    533
    meh, i don't believe those rumors. would be nice, but i think they need to work on clock speed and cross-CCX latency. and i think clock speed will be one hell of a challenge on a new process... one that pretty much nobody has used before, or at least at these clock speeds (mobile barely counts) and voltages.

  3. #13
    Join Date
    Sep 2010
    Location
    Leiden, the Netherlands
    Posts
    4,372
    Quote Originally Posted by plonk420 View Post
    meh, i don't believe those rumors. would be nice, but i think they need to work on clock speed and cross-CCX latency. and i think clock speed will be one hell of a challenge on a new process... one that pretty much nobody has used before, or at least at these clock speeds (mobile barely counts) and voltages.
    Well, rumours/rumors have it that the fastest Ryzen 7's and 9's will get up to and beyond 5 GHz....nothing known about their cross-CCX latency yet though.
    But also nice to know that the lowest 3000-series Ryzen 3, the Ryzen 3 3300, will have 6 cores/12 threads -able to do 3.2 Ghz (base) up to 4.0 GHz (turbo) at 50 Watt TDP and all that at $99.99....

    Makes you wonder what the Athlon 300GE will be capable off....
    Last edited by Dirk Broer; 01-05-2019 at 11:05 PM.


  4. #14
    Join Date
    Sep 2010
    Location
    Leiden, the Netherlands
    Posts
    4,372

    Building a 24 thread cruncher

    The new recommendation is to buy a recent Socket AM4 mobo -you might already own one, you just may have to update your BIOS- and a 65 Watt TDP Ryzen 9 3900, as soon as they become available for Joe Sixpack -us, that is. If the A320 board you bought before had a too small BIOS chip (32MB instead of 64MB, IIRC) you may need to buy a new AM4 board. Check the cpu support info of the board of your choice. At least MSI (the MAX boards) and Asrock (R3.0 and R4.0) have A320 boards that will support the R9 3900. The CPU support page of my own Asrock A320M Pro4 does mention the 105 Watt TDP R9 3900X, but makes no mention of the 65 Watt TDP R9 3900, strange.
    Last edited by Dirk Broer; 10-21-2019 at 10:29 PM.


  5. #15
    Join Date
    Apr 2008
    Location
    NTSC
    Posts
    533
    well, now with the Ryzen 1600AF for $85 back in stock, get two of those, two cheap mobos (buy with an AmEx or Mastercard to extend warranty by a year... and then pay it off immediately, of course). cheaper than the threadripper (those $250+ (new) boards are oooofff)

  6. #16
    Join Date
    Sep 2010
    Location
    Leiden, the Netherlands
    Posts
    4,372
    But you no longer need a Threadripper to build a 24-thread cruncher. A simple AM4 board with a Ryzen 9 3900 (65 Watt tdp) or 3900X (105 Watt tdp) is enough,
    needing just one PSU, one set RAM, one mobo, one graphics card. Pitty the Ryzen 9 3900 seems to be an OEM model...


  7. #17
    Join Date
    Apr 2008
    Location
    NTSC
    Posts
    533
    2 1600 AFs (maybe with a PSU splitter ... or cheapish PSUs) is cheaper than a 3900X, tho!

    oh, speaking of PSUs, have you seen either the LTT PSU Tier List or a g.sheet The Power Supply Guide? kinda interesting...

    https://docs.google.com/spreadsheets...FEHmrc_SPuYsjs

    https://linustechtips.com/main/topic...-tier-list-40/

    amused to see my beloved Seasonics S12IIs in Tier D lol
    Last edited by plonk420; 02-15-2020 at 07:09 AM.

  8. #18
    Join Date
    Sep 2010
    Location
    Leiden, the Netherlands
    Posts
    4,372
    Problem is that, even while purchasing two Ryzen 5 1600 systems may be actually cheaper, running two systems 24/7/365 is more expensive than running one.
    Two times the Wattage for both CPU and GPU adds up, and two times the rest of a system does too.


  9. #19
    Join Date
    Apr 2008
    Location
    NTSC
    Posts
    533
    well, i'm trying to confirm whether it can run headless, but the power consumption should be somewhere around 80-100 watts x 2 vs 190-210 without GPUs

  10. #20
    Join Date
    Sep 2010
    Location
    Leiden, the Netherlands
    Posts
    4,372
    Quote Originally Posted by plonk420 View Post
    2 1600 AFs (maybe with a PSU splitter ... or cheapish PSUs) is cheaper than a 3900X, tho!

    oh, speaking of PSUs, have you seen either the LTT PSU Tier List or a g.sheet The Power Supply Guide? kinda interesting...

    https://docs.google.com/spreadsheets...FEHmrc_SPuYsjs

    https://linustechtips.com/main/topic...-tier-list-40/

    amused to see my beloved Seasonics S12IIs in Tier D lol
    Funny thing here is that some of the better rated PSUs are sold by the likes of Cooler Master and Corsair. I am not saying that these are bad products, but who actually makes them?
    Both Cooler Master and Corsair have no factories with their name on it. They just order, to their specifications, at other manufactures (like e.g. SeaSonic)


Page 2 of 3 FirstFirst 123 LastLast

Posting Permissions

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