AMD Ryzen 9 9900X3D 5.5GHz AM5 12-Cores 24-Threads $764.15 ($746.17 eBay Plus) Delivered @ australianseller-2013 eBay

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AMD Ryzen 9 9900X3D 5.5GHz AM5 12-Cores 24-Threads $764.15 ($746.17 eBay Plus) Delivered @ australianseller-2013 eBayAffiliate
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Mudcrab Merchant on 28/10/2025 - 14:04 ebay.com.au (503 clicks)
Last edited 28/10/2025 - 14:36 by 1 other user
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Original Coupon Deal

ATL by $150+ according to Pgrid and AU camelcamelcamel

Listed at the same price as the 9800X3D - possible price error.Price confirmed with australianseller-2013 - not a pricing error.

This is the retail box 9900X3D Australian stock SKU - NOT OEM tray or grey import. Shipped from Sydney, NOT drop shipped.

eBay Australia Referrals

Referral: random (11)

Referee: $10 off 1st purchase.
Referrer: $10/$20/$30 off $100/$150/$250 Spend.

Computing AM5 AMD Computer Component CPU

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Comments

  • mordinhoz on 28/10/2025 - 14:05
    +8

    Seller made it to 2025

  • RichardF89 on 28/10/2025 - 14:05

    I spent more for my 9800x3d

    • not ai on 28/10/2025 - 16:50
      +1

      I could be wrong but pretty sure 9800x3d has better single core performance.

  • RichardF89 on 28/10/2025 - 14:06
    +3

    This is the retail box 9800X3D Australian stock SKU - NOT OEM tray or grey import. Shipped from Sydney as well, NOT drop shipped.

    • Mudcrab Merchant on 28/10/2025 - 14:39

      Good pick up, however, it is the 9900X3D - confirmed with seller who has updated the listing.

  • Badger2066 on 28/10/2025 - 14:30

    For purely gaming, the 9800X3D is still the better CPU right? or is the minimal trade off of the extra 4 cores worth it?

    • wisc on 28/10/2025 - 14:40
      +1

      From my research depends on your workloads… But for games, usually games don't use more than 8 cores and again, my understanding is interconnects between the 9800 are better for gaming as they all use a shared cache or somthing..

      The difference in cores doesn't make a huge difference in games (more cores slightly slower for to cache layout), more cores is better for productivity apps that make use of more cores.
      But unless you are using the cores they are just wasted as well

    • stirfry on 28/10/2025 - 19:36
      +1

      9800X3D is better for gaming. The 9900X3D only has 6 cores that can access the V-Cache, whereas the 9800X3D, all of its 8 cores can access the V-Cache. For the 9900X3D, Windows 11 will park (make idle) the cores that don't have access to the V-Cache if it detects your active window is a game; this is for performance reasons since consumer CPUs don't have the interconnects that are reserved for EPYCs to transfer data quickly between CCDs. Talking about CCDs, the 9800X3D has 8 cores that can access the V-Cache because they're all on the single CCD that it has (that works), whereas the 9900X3D has two CCDs, just like the 9950X3D.

      • wisc on 28/10/2025 - 20:30

        I hear the 9950 is only a frame or two slower in games though, and quite a bit faster in productivity… right?

        • stirfry on 28/10/2025 - 22:27
          +1

          Yeah the 9950X3D (not to be confused with the 9950X) is very similar to the 9800X3D for gaming. And yeah the 9950X3D can perform up to 2x better than the 9800X3D for workloads that can use all the cores, like file compression.

          • wisc on 29/10/2025 - 00:40

            @stirfry: Was going to see if I got a new CPU as rma replacement for my dead CPU, if the shop would sell me (for the difference in cost);between the 9800x3d and the 9950x3d… it's msy, so probably not, but worth asking.

  • OpenHand on 28/10/2025 - 14:40

    How much of an upgrade would this be from a 5800X3D (ignoring AM5 board costs etc)?

      • OpenHand on 28/10/2025 - 16:24
        +2

        That is… wild. Thanks for the link.

        • Coolkid21 on 29/10/2025 - 06:21

          Not sure how representative that reddit screenshot is, I've compiled some screenshots from HUB which shows about a 30-40% +-1% uplift compared to a 13% uplift in that specific photo
          https://imgur.com/a/dHfzGdX

          In HUB's latest battlefield benchmark it shows a 50% uplift, so obviously it depends on what you play.
          You don't particularly play Cyberpunk 2077 on a year old patch on those specific settings that were used in that screenshot do you?
          Look into benchmarks for the specific games you play because sometimes there isn't much CPU scaling anyways

  • marshmall0w2 on 28/10/2025 - 15:03
    -7

    Wow called it at $700

  • Dimz on 28/10/2025 - 17:45

    How reliable we thinking australianseller-2013 is?

    • BROADSAW on 28/10/2025 - 21:10
      +2

      99.2% reliable - says so on their profile

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