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MINISFORUM BD790i Motherboard, AMD Ryzen 9 7945HX on Board $749.99 Delivered @ Miniforums Store via Amazon AU

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Seems to be a good deal for itx builds, as it is essentially a 7950x + motherboard in a nice form factor

Price History at C CamelCamelCamel.

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closed Comments

  • equal to 5950x?

    • 7950x not 5950x

      • Except a lot lower tdp - so less speed but less power usage

        So more 5950x level of performance, at lower wattage

        • cinebench r23
          5950x 29000
          7945hx 36000
          7950x 38000

          much closer to 7950x than 5950x

  • Even has usb4 on it so good!!

  • +4

    People on Reddit advising people to stay away from the mobo. Don't know what this is about but have a look.

    Stay away from the BD790i. The first batch are all defective. They don't hold BIOS settings, and everyone I have encountered has this problem (about 10 people). The thermals are not comparable to the AR900i (I have the BD770i, AR900i, and the BD790 til I RMA that). The 13900HX responds well clocks-wise, where the 7945HX seems to want to stay at 5.5GHz on a bunch of cores at all costs. So it gets warm. That and the machining on the cooler of the first batch of BD790is hasn't been great. Even with a PTM7950 re-paste, it's not enough to make up the deficit. The BD770i and AR900i both showed improvement after re-paste. If you want the BD790i at all costs, then at least wait until July. That it when I was told by Minisforum that the remedied batch would begin to ship. That an even people who got their flawed boards later have better machining on the cooler. tl;dr - Skip the BD790i until July.

    https://www.reddit.com/r/sffpc/comments/1cqrpbe/gaming_cpu_7…

    • The only answer to this is its October, well past July.

  • So pretty much u just need ram and storage and a case for it

  • +1
  • +2

    This board at least does something that's smart for an ITX board. It uses SO-DIMMs. You can fit more functionality on a board by not using up board area with desktop DIMMs.

    In fact I'm stuffed if I know why the industry didn't go over to SO-DIMMs completely with DDR5. You can fit as much RAM on two SO-DIMMs as most people want, and you can fit more RAM in 4 vertical slots for SO-DIMMs than CPUs can address, and still only use up as much space as two DIMM slots.

    • +1

      The consumer market moved towards making RAM look flash with RGB and fancy paint jobs.Need big sticks to fit more lights.

    • Not sure if it's a manufacturer choice or form factor but it's usually slower with latency timings
      Fastest I found was cl38 but often slower

      Same was with ddr4 sodimms

      • That's just a matter of SO-DIMMs being designed for slower laptop processors that simply don't need and can't use the very fastest RAM possible. When SO-DIMMs are only used in laptops there's no point in making premium products in that form factor. Well, there's no point in big motherboard area consuming DIMMs any longer when the higher GB/chip density of DDR5 means the amount of RAM needed and wanted could fit on a SO-DIMM.

        We're already seeing it happening with miniPCs, where a lot of people are saying they don't need a huge box for anything but the most extreme use to get the job done any longer.

        • plenty of very fast mobile CPUs now (like the above), so youd think there would be premium memory too.
          I'd take your argument in regards to DDR5 but wonder if there is a technical reason why you cant get for example CL30 sodimms

          • @Lonewolf1983: I would guess it's just market driven - anyone into specs enough to be adjusting memory timing, is almost certainly using a desktop machine. The overlap of tweakers and laptop users is probably pretty small 🤔

            • @Nom: dont need to tweak memory timings if its in XMP

        • Memory chips do generate a lot of heat as those timings and clock increase.
          Sodimm has significantly less surface area

          So I'd certainly speculate that is one real reason top graded sodimm always has signicant lower rating than full dimm.

          The other i imagine we are shopping for 32 and 64 gb dimms but sodimm is unlikely to fit 128gb 256gb that the standard can technically bring to market.
          Sodimm is highly dependant on technical improvements to shrink nm capability by chip manufacturers to make each chip smaller.

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