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R7-3800X RX 5700 XT Gaming PC [16G 2666/480GB/B350750W]: $1288 + $29 Delivery @ TechFast


Hi folks,

Happy New Year to everyone. Kicking off the new year with a dedicated 3800X / 5700 XT build, as we've a) ensured 3800X at 3700X pricing for a while longer and b) recently dropped the 5700 XT price by $100, making the bang for buck proposition pretty damn solid for this GPU.

As always, upgrade options are available on most component lines.

Ryzen 7 3800X / RX 5700 XT Gaming PC


Ryzen 7 3800X
MSI Mech RX 5700 XT 8GB
16GB 2666MHz RAM (16GB 3200MHz upgrade special offer for $29 still running)
Biostar B45M2 B350 motherboard
480GB 2.5" SSD
Allied 750W PSU (Gigabyte G750H 750W 80+ Gold PSU upgrade special offer $69 still running)
Leaper Mid MATX case with guaranteed 2 x 120mm front intake fans and 1 x 120mm exhaust (regular config has 1 intake)

Price: $1288 after 3800X-5700XT-NY
Link: https://techfast.com.au/products/amd-ryzen-7-3700x-rx-5700-x...

Our other current deals ending very soon are:
Tightarse's R5-3500X / GTX 1660 [16G/B350/120]: $689 delivered
Ryzen 5 3500X / RTX 2080 Super [16G/B350/480]: $1499 + delivery
Ryzen 9 3900X + GPU range: from $1699 + delivery
Core i7 9700F / RTX 2080 Super [16G/B360/480]: $1777 + delivery

Happy to look at new variations as well. I'll stick a few possibilities in the comments - please upvote if you're interested to see what we can come up with and/or comment with your own.


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closed Comments

  • Spec possibilities:

  • Hi luke.

    I and im sure many others many others are wondering, how all the orders are tracking from the Christmas / boxing day orders?

    Also stop tempting me … i already have to many computers and not enough rooms in the house.

  • +1 vote

    Gotta say this is great value. (Would set you back around $1600 by my estimate to build yourself - CPU and GPU alone cost about $1150 cheapest). Makes it very hard to justify not buying!!!

    Also a big price drop from boxing day sale

    Ryzen 7 3800X
    RX 5700 XT
    16GB 3200MHz RAM (32GB 3200 +$99)
    Biostar B45M2 B350 motherboard
    240GB 2.5" SSD
    Allied 750W PSU (Gigabyte G750H 80+ Gold Upgrade $69)
    Leaper Mid case

    was $1479

    • The motherboard, ram and SSD are significant bottlenecks though.

      • Yeah, I'm glad there wasn't an option to upgrade to X570, or I'd be kicking myself for ordering a similar set of components for a fair bit more the other day..

        • Hate to burst your bubble, but there is two x570 options you can select for this one (ie. the deal in the OP)

          • @djkelly69: Ah you're right, one of the dubious looking sites I hadn't allowed scripts from was blocking it..
            Still 300 more with the code applied (with the SP/DIF x570 mobo, 32gb 3200).. I didn't buy an ssd or psu though since I don't need either so still a good deal nonetheless.

      • -1 vote

        From Gaming perspective
        Not sure how much of bottleneck MOBO is. Ram upgrade to 3200mhz is decent.(Again not sure how much difference the ram upgrade will make)
        Faster SSD will improve load times but from my simple understanding doesn't effect gaming performance.

        On flip side some may argue that 3800x and 5700 xt probably don't improve performance much for gaming over 3600x with a RX 5700 and so that. So even though you get better bang for buck in terms of specs it may not be that great from a performance perspective.

        From productivity/longevity perspective.
        I think MOBO/RAM and SSD are issues. Once you add upgrades not that attractive a deal I agree.

        I am a noob. Please flag my many mistakes and assumptions but don't report to mods.
        Also please no more than 5 negs

      • I doubt the mobo will bottlekneck it. It'd have to have awful VRM for that.

        Upgrade the RAM for $30, pretty reasonable upgrade. The 2666mhz RAM will be fine if that's impossible. It's not that massive a performance loss.

        Eh, it's unlikely you'll notice it. Just changed from the 120gb allied ssd I had from the old techfast build to a crucial p1 (NVME) and I've not noticed any difference at all.

  • Do you still sell CPU + Mobo bundles?

    • +2 votes

      They didn't really move during the BFCM sales so we probably won't revisit for a time. The customer says our core is complete systems at the moment.

      • Damn shame. I must have missed the OzBargain post for that.

      • Speaking for myself, the particular CPU+GPU bundle advertised on ozbargain for BFCM didn't look particularly appealing. The GPU seemed comparatively far more powerful than the CPU. Something like a R5 3500x + 2060/2060S or 5700 would certainly interest me more.

        Not sure if that kind of feedback is helpful, but ya :) Hope you had a great xmas/new years!

  • Ah man, if the 5700XT was $100 cheaper in the previous 3800x Boxing Day deal I probably would have stumped up for one :D

  • I only play CSGo - will this give me max performance for a simple game with a 144Hz monitor?

  • +2 votes

    anyone bought a techfast computer with the biostar b45m2 have issues with waking the computer up from sleep?

  • How are the Leaper Mid/Leaper Flair cases in terms of temperature/overheating? I haven't heard many good things about the previous versions.

    • +2 votes

      Both have much better airflow. The Mid has one intake and exhaust as standard with better air vent positioning, and one more can be installed - we are installing 2 intakes with higher end GPUs. The Flair is a vast improvement over the standard Leaper as it has an 80mm exhaust fan plus larger overall size compared to the Leaper.

  • Luke, will codes for AMD Raise the Game promo be provided with this?

  • I am tempted by this and several other options; are these build targetted at gamers? I am not one; really looking for a PC that could do some film editing in 4k - so what kind of base specs does one normally need for 4k editing?

    • +1 needed for video editing. This OK or perhaps with 32GB RAM upgrade?

    • For things like video editing i would be looking at upgrading the motherboard and the PSU.

      For gaming the biostar board might be alright since you aren't 100% taxing the CPU, however with workstation apps the CPU will be fully taxed and i'm not sure the naked 4 phase VRM is going to like that (the board has no heatsink at all for the VRMs from what i can see).

      Same thing for the PSU, grab the Gigabyte G750H 750W 80+ Gold PSU upgrade and you'll be good to go for hours of rendering/editing.

      • Thanks for your comment, much appreciated.

        Assuming I got this package, in order of upgrades 1) motherboard 2) PSU 3) RAM … I assume the GPU is ok? and any other upgrades or downgrades that you can think of off the top of your head.

        Thanks again.

        • GPU is fine though you might want to check to see if your programs are CUDA accelerated or not, might be worth switching to an Nvidia card if that's the case, other then that the build is pretty solid.

  • Hey Luke

    I placed an order for a build using the Boxing Day code however running my preferences using this code shows that for exactly the same setup I would be $162 better off. Is it feasible to cancel the previous order and place a new one?


  • I know you try this, but how about a deal with say, 3500x/1660 super with bells and whistles?, you should be able to keep that under $1000 with your style
    although techfast do seem to be getting better at allowing customers with some idea what they are doing to do this themselves with upgrades I have noticed, without screwing them on price
    perhaps the lower/mid range gamer might like that?
    @bestev4 I have one of their old cheap cases, the thing is as crappy as you could imagine quality wise, but the airflow is superb with a 1660

  • I'm not a gamer but interested to see some custom NAS build with small casing but multiple bay drive (at least 6-8 bays).

  • funnily the PS5 is rumored to have this kind of spec, wonder what it will retail for…

  • @luketechfast Will this PC allow me to run Microsoft Flight Simulator on 4PK 60fps or can you offer an upgrade/recommendation to match that?
    These are the System Requirements:

  • Hi Luke,

    I currently am waiting to hear back from Techfast regarding my DOA order.

    I ordered way back in 30th of November and am abit disappointed with how everything has been handled.

    It would be great if techfast responded to my emails and provided me with updates and if that isn't possible perhaps just a refund that i can go build the PC myself.


    • Can you please PM me some details of this?

      • Hi Luke,

        Unable to send a DM due to creating my ozbargin account which as restriction on private messaging for the first day.

        My order number is - #TECHFAST36742631.

        Will send details tomorrow, i've sent multiple emails to techfast_support aswell.


  • Morning
    My budget is $1400, what build would you recommend?

    Thanks in advance

  • Do you accept AfterPay?

  • hi can we pay by paypal please? thanks

  • Hi Luke,

    I'm thinking of buying this one these two days.

    I want to upgrade

    *) Memory to 64GB

    *) Power Supply to 750W 80+

    *) Motherboard <- Could you recommend me one for this?

    I'm targeting more on productivity purpose

    • video editing - multitask works - designing events


  • Hi Luke, do you have any casing that can fit 4x 3.5 Hdd?

  • does it come with an optical drive too please? if so which one?

    • No, we don't offer an internal (or external) optical drive at present, but the Leaper Mid and Flair cases do support it.

  • Hi Luke, do you sell any case options that include an external BR/DVD drive bay? What about with external USB-C at the front?
    I love your deals, but I would probably have to remove the components from inside and place them into another case with the above. Even if you had one with just the drive bay, I could survive without the USB-C.

    • Do you mean internal? An external drive could connect via USB to any case. The Leaper Mid and Tesseract SW cases support internal optical drives, but we don't offer a drive as an option at present so you would need to source yourself. None of the cases have USB C.

      If you don't particularly want the case you can order unassembled, saving you the uninstall/reinstall. Enter SHIP UNASSEMBLED in the Notes field on the Cart Page before Checkout. You will still receive a case as we can't remove it for a lower price, but you can on-sell/keep as spare etc.

      • Yeah, sorry…internal (the external access to an internally mounted optical drive concept always throws me!). I'll definitely consider the ship unassembled option. Cheers.

  • Finally pulled the plug on this one. Cant wait to get hands on this.

  • Techfast have fantastic deals but I would highly recommend upgrading the psu.
    The one they include is shit and the psu is the heart of the system.
    If that fries, many of the connected components can fry.