• out of stock

AMD Ryzen 7 9800X3D CPU $631.80 Delivered @ Smart Home Store eBay

670
SMARTHOMEAUS15

ATL price for brand new non aliexpress stock. Could be useful if you're looking to upgrade CPU and already have DDR5.

Excludes Northern Territory, WA Remote

price tracker: https://www.pgrid.app/au/cpus/ryzen-7-9800x3d

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  • 7500x3d for $357 is okay too if you're paranoid of buying from aliexpress

    https://www.ebay.com.au/itm/126417504711

    • ohh nice. banger deal given gaming performance difference between 9800x3d and 7800x3d isnt that much

      • That's a 7500, not 7800

        • damn im a boomer

  • If you’ve been waiting a year, you can now save $150 on your CPU so that you can spend an extra $600 on RAM!

    • Lol, i was just thinking the same. Luckily Radeon cards didnt go up in price. Probably less folks building PCs now.

    • I've been needing a new PC for a while now - my one is very much dying and starts to get to 80-90 degs after a few minutes of idling from a cold start, so it's needed. I decided to get one last year, then thought with all the GPU prices that it might be better to wait until this year for things to calm down. There were a couple of good deals towards the end of the year but I had just got back from a holiday and with Christmas coming up I thought it'd be better to save my money to get a PC this year. I have many, many regrets now!

      • Quick tip: Your AIO cooler is dead. Buy and install one of these to tie you over: https://www.amazon.com.au/dp/B0C57B2L59?th=1 That will fix the 80-90deg problem.

        • So my current one is a gaming laptop, not a desktop. Also it's not just an issue with CPU temps, gpu temps are also not great. Also gpu intensive games I could play years ago now barely run at 5-10fps. CPU ones (like modded minecraft) barely runs at 20-30fps. No amount of cleaning or anything has helped, and even if I could make it better, I think it's time to upgrade to a desktop

          • @Opaquer: You might need to replace the thermal paste. Sometimes laptop manufacturers cheap out on it and you get something that dries up quickly and no longer is thermally conductive.

            • @genkipeach: That is the one thing I haven't tried - I might look into how it all works and see if it's worth doing until I get a new PC - thanks for the advice!

              • @Opaquer: Most definitely replace the paste

              • @Opaquer: +1 for the thermal paste, but also check your fans on the laptop as well. Make sure they're spinning freely. but also make sure the exhaust port isn't blocked up with dust

                • @CometDaFrog: I've checked the fans and they spin ok as far as I can tell. Same with the exhaust port - as far as I can see it looks OK. But I might look into how thermal paste works and see about doing that until my new pc gets here

          • @Opaquer: Definitely sounds like crusty thermal paste issue. You can look into doing thermal pads instead of paste. I had an asus gaming laptop that would shut down/black screen from overheating. I fixed it by cleaning the old paste off and redoing it with pads. Runs a lot better now, even when I was abusing it by gaming for hours on end.

            Some laptops are harder than others but usefully theres youtube guides where a dude will show you how to do it.

  • You have obviously missed the pc gear case RAM deal last week.

    The ram price and storage will up again due to samsung recent announcement

    • what has samsung announced now? funny how they colluded with hynix and micron and others to jack the prices up in the early 2000's probably a lot of that going on now to but nothing will be done with taco in power!

  • I got it for around 570 AUD

    • Where at?

      • AliExpress.

  • If anyone is looking for a 9850X3D it comes down to $755.10, too.

  • What's everyone getting for their AM4? I have a 3700X

    • 5700Xs are currently ~$200 on aliexpress

    • my 5700X3D from aliexpress is still going strong

  • Bought one with another $5 off coupon from seller, OOS now. Any good deals for X670(e) or X870e mobo?

  • Geez that’s a powerful cpu, does almost what a 7945hx does with 16 cores with only 8

  • I'm still rocking a 7700x on eco mode with a 4080 and it's been fine on 4k! (Mostly)

  • Got a 7800X3D from Aliexpress and it died in just over a year last month so yeah, not gonna do that again… this might be ticket to get back my main rig working again. Currently gaming with a i5 9600K from back in the day and to be honest it has been pretty OK playing BF6 @1440p all things considered

    • You're not running a asrock mobo are you?

      • As a matter of fact, I am… now you got me curious, why???

        • Asrock have been killing cpus, check gamersnexus or level1techs on youtube

          • @BilboBargains: Oh great… I tried to avoid Gigabyte as I had a lot of issues with the Aorus I had previously and now this!! PCs are awesome til they're not

            • @educalifa: If you contact level1techs or gamersnexus they were buying stock from customers with your issue to find the fault as asrock still hasn't found or fixed it. Asrock did do a new revision of some boards according to level1techs.

  • Why are Northern Territory, WA Remote excluded if it's being shipped? They couldn't just tack on a bit more for shipping?

  • OOS

  • Out of Stock at this price, now $661.50 on their other listings.

  • Budget wise, would MSI MAG B850 Tomahawk Wifi + Arctic Liquid Freezer III Pro 360 be a perfect match with this CPU ?

    • I paired it with MSI B850 Edge Ti (went for a white build), but also a ROG Ryujin 111 360 (bought it new from marketplace- a bit overkill, but it was $250). Tomahawk is a great motherboard, only thing that sucks is the MSI software to control all your RGB, but they have just released MSI light via Web interface. Now i bought a 9070xt Red Devil Spectral White, so I am assuming you are getting a 9070xt / 5070Ti / 5080. If you are getting a lower card than this I would just be getting 650 motherboard - and in that case I would also getting a different AMD CPU.
      It all depends what type of rig you are aiming to build - Gaming/Workstation and if you are gaming are you playing on 27/32 inch screen and what settings you want. The cooler is fine, once again depending on the card and if you OC etc.

      I only add all this in as you really need to state the purpose of the build as opposed to just asking if the MOBO/CPU combo is a good budget.

    • Just bought exactly the same setup this week, and after checking plenty of videos and reviews I decided to not got for the LF 3 Pro.
      If you search for Hardware Canucks videos on youtube you'll see that, specifically for AM5, its way worst than the others AIOs from similar price range. Ended up going for the Corsair Naut 360 (got the LCD one but the basic one should be more than fine).

      As for the motherboard, I got exact the Tomahawk Max Wifi version, but you'll be 100% fine with the basic one, its a great mobo for the 9800x3d.

  • Customary "is it worth upgrading from 3700x" question. Am on AM4 with a x470 mobo.

    Doing decent use of pc but wanting to get into running some AI models on my pc now. Currently have rtx 3700 so hopefully need to upgrade rest of pc without needing to upgrade gpu.

    Edit : oos but still appreciate insights thanks

    • I started typing out an answer for you, and thought i'll just paste it into Gemini - So here we go:

      Upgrading from a Ryzen 7 3700X to a newer chip on the AM4 platform is arguably one of the best "bang-for-your-buck" moves in PC hardware right now, especially as we head through 2026. Since you are using an X470 motherboard, you can skip the cost of a new motherboard and DDR5 RAM while still seeing a massive jump in performance.
      For your specific goal of running local AI models (like LLMs or Stable Diffusion) with an RTX 3070, here is the breakdown of why it's worth it and which CPU you should pick.


      1. Why the Upgrade Matters for AI
        While AI models primarily run on your GPU, the CPU plays a critical "orchestrator" role.
        • Preprocessing: The CPU handles data tokenization and prep before it hits the VRAM.
        • Offloading: Your RTX 3070 has 8GB of VRAM. Many popular models (like Llama 3 8B or Mistral) fit comfortably, but if you want to run larger "quantized" models (14B or 20B), your system will offload parts of the model to your System RAM.
        • The Bottleneck: On a 3700X (Zen 2), this offloading is significantly slower than on Zen 3 (5000 series) due to architectural improvements in IPC (Instructions Per Clock) and cache latency.
      2. The Best Upgrade Paths (AM4)
        CPU Best For… Why Choose It?
        Ryzen 9 5950X AI & Productivity 16 Cores / 32 Threads. Best for heavy multitasking and running "CPU-only" or hybrid AI models where VRAM isn't enough.
        Ryzen 7 5800X3D Gaming First The 3D V-Cache makes this the gaming king of AM4. It's great for AI, but the 5950X beats it in raw compute tasks.
        Ryzen 7 5700X3D The Value King Offers ~90% of the 5800X3D's performance for a much lower price. The best choice if you're on a budget.

      1. Vital Considerations for your X470
        • BIOS Update: You must update your BIOS to the latest version before removing your 3700X. Most X470 boards support the 5000 series, but they require a firmware update to "recognize" the newer chips.
        • PCIe 3.0 vs 4.0: Your X470 board is limited to PCIe 3.0. While the RTX 3070 and Ryzen 5000 support PCIe 4.0, the performance loss on 3.0 is negligible (usually 1–3%). For AI workloads, the memory bandwidth of your VRAM matters much more than the PCIe bus speed.
        • RAM: If you plan on running larger AI models that spill over from your GPU, ensure you have at least 32GB of DDR4 RAM. AI is extremely memory-hungry.
      2. Is the RTX 3070 enough?
        Yes, for "entry-to-mid" local AI.
        • LLMs: You can run Llama 3.1 8B or Gemma 2 9B at very high speeds.
        • Image Gen: Stable Diffusion (XL or 1.5) will run great on 8GB VRAM.
        • The Limit: You will struggle with 30B+ models or unquantized 70B models, as they require much more VRAM than you have.

      Summary Recommendation
      If you primarily want to work/create and run AI, get the Ryzen 9 5950X. The extra cores are a godsend for data processing. If you want a balance of gaming and AI, the Ryzen 7 5700X3D is the smartest financial move in 2026 to keep your AM4 rig relevant for another 2–3 years.
      Would you like me to help you check if your specific X470 motherboard model has a compatible BIOS update for these CPUs?

      • Thank you.Bit was looking for some real world opinions and this would be AM5. Looks like gemini thinks I just want to move to the 5000 series. This is the 9000 series.

        • So you're rather looking at moving off of AM4 to AM5? IMO, as I am in the same boat, best to upgrade AM4 if you can find a CPU. If you don't already have enough RAM on AM4 and need more RAM, then you should look at moving to AM5, but it's going to cost quite a bit to do it. I just read today about MB issues with AM5, so I have to look into that more.

  • oh well, I don't have a RAM for this

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