7950x Build - Couple of Questions

• 

  GoogleFroogle on 06/10/2022 - 03:34

  Any other info/opinions on the build, or any ideas on beating the prices I have listed would be great, too, thanks! Most I'm just getting from ebay comp alliance, ram from auspcmarket, case from gumtree or locally if anyone feels strongly about what I should pick.

  I'll largely remoting into it, so just leftover mouse/keyboard, etc

• 

  greatlamp on 06/10/2022 - 06:53

  +1

  Cooler: consider the Arctic liquid freezer ii

  Case: Meshify 2 is a little cheaper, excellent quality and supports 6 hdds. Not sure if 3.5 in. hdd capacity is important. Cooler master 4000d is also good for a cheap case if you don't need more than 2 hdds.

  Used cases - better to try a scrap yard, people of gumtree will be selling stuff they find on the road for $60

  Ram: $300 for 64gb ram seems very good, I certainly wouldn't spend more. Can upgrade in a year of you really feel the need to.

  Motherboard is the only piece I would say is overpriced, there will definitely be cheaper options that are just as good in the coming months, on x570 you could get excellent VRM solutions around $300-$350

  You can run OBS off the integrated graphics just fine, use the gpu encoder for recording at max quality, then schedule a re-encode later using the CPU. Or with a 16 core CPU, you could encode directly, it should keep up

  • 

    mrkorrupt on 06/10/2022 - 09:16

    +1

    Cooler: consider the Arctic liquid freezer ii <—- not needed, check out the hardware unboxed video, shows very little need for an AIO, as lost as configure PBO2 negative voltage offset
    Case: get something that basic but functional, new PSU is recommended as new specs, power standards are coming out
    Ram: get as much as you need now as ram is falling, then add more in later
    Motherboard: if you can wait for B650 wait
    GPU: only if streaming

• 

  OMGJL on 06/10/2022 - 09:27

  +1

  Q1: Can I get by with the integrated graphics while it is just running some hardcore number crunching software with minimal graphics processing?

  I guess to run OBS (broadcasting software - which I guess is encoding a bunch of video stuff) and multiple monitors I'll then need a new graphics card, but I'm hoping I can just be a tightass until then?

  what you said should work.

  Q2 Any recommendations for cases, I think this is again where I am saving dollars by buying second hand, and can update later?

  Since you won't be getting a hot GPU, you should be fine using whatever case anyway. thermaltake v250 air could be a good choice as you won't need buying more fans and the case have good airflow.

  Q3 I assumed the 5200 c40 ram will be fast enough and paying lots extra for faster won't make as much difference?

  Faster ram helps mainly when you do real-time based staff, like gaming, when a large and random dataset change unpredictably in microseconds interval. Though if you want something fast, AMD recommend DDR5 6000.

  • 

    GoogleFroogle on 06/10/2022 - 10:47

    Thanks for the detailed response, much appreciated

  • 

    GoogleFroogle on 06/10/2022 - 12:53

    I can't find the 6000Mhz 2x32gb anywhere, so might have to settle half way in between the original cheap 5200 and something like this (5600 and decent latencies, etc). G.SKILL Trident Z5 RGB Series 64GB (2 x 32GB) 288-Pin PC RAM DDR5 5600 760 + 25 shipping ;

    https://www.skycomp.com.au/catalog/product/view/id/894821/s/…

    Vs this for example;
    https://www.pccasegear.com/products/59473/corsair-vengeance-…
    Corsair Vengeance 64GB (2x32GB) 5600MHz CL40 DDR5 EXPO - $579 + 15 shipping

    Basically it seems like $785 for 5600 gskill with 30-36-36-89 timing, vs paying 594 for the 5600 40-40-40-77 vengeance.

    I am not sure what the real world effect is of picking one or the other here

    • 

      greatlamp on 06/10/2022 - 14:10

      Just buy the cheap stuff you specified, in 6 months time you can sell it for $200 and those 6000mhz kits will go for around $400-$500.

      Once more manufacturing switches over to DDR5 prices will plummet.

      We are talking about 5% performance differences.

    • 

      OMGJL on 06/10/2022 - 14:13

      +1

      For your work, I doubt RAM speed will play a huge role.. I'd just go for the cheaper one if the price difference is that huge…

      again ram speed won't matter much when your dataset is already lined up, only when there's tons of random access, and you need those data from RAM to do the next thing.

      for instance tile based rendering won't need instant ram access, if one tile is waiting for the data, rest of the tile is still working hard.

      you basically only need ram speed when you working with something just-in-time.

      • 

        GoogleFroogle on 06/10/2022 - 14:31

        Thanks again, FYI: my use case is mostly poker simulations, where it goes back and forward playing billions of times against "each other" until it finds something close to a game theory optimal answer of how to play something (after a fair chunk of time). Uses lots of (multithreaded) CPU cycles and a decent chunk of memory, but not sure how that use case works out for data access.

        • 

          OMGJL on 06/10/2022 - 14:54

          +1

          @GoogleFroogle: doesn't sound like unpredictable nor in microseconds interval to me. I could be wrong though…

          you could experiment by disable XMP on your current build and see how much slower it get.

          The other thing is if you could get your hand on Hynix chips you potentially can OC it way much higher.